Akira Stealer: An Undetected Python-Based Info-stealer

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Akira is an information stealer malware that was found in March 2023. This malware can steal sensitive information, including saved credentials and payment card details, usernames, system ID, hardware details, installed software, and network configurations. 

Once this information is extracted, it uploads the data on a ‘GoFile’ online storage management service and Discord instant messaging service accounts owned by the threat actor. 

Akira Stealer

According to the reports exclusively shared with Cyber Security News, Akira Stealer contains a multi-level infection process for code obfuscation and detection evasion.

The threat actor is also found to be providing services over Telegram, a C2 server, and GitHub.

Moreover, the threat actor claims that this malware is FUD (Fully Undetectable). Its telegram channel, Akira, consists of 358 subscribers as of now. The threat actor also offers a Malware-as-a-service domain “https[:]//akira[.]red/”.

File, Behavioral, and Code Analysis

As a means of Analysis, researchers collected a sample file, “3989X_NORD_VPN_PREMIUM_HITS.txt.cmd,” which was a CMD script file with obfuscated code. However, as stated by the threat actor, the file is completely undetectable on VirusTotal.

Python-Based Akira Stealer
Source: Cyfirma

When executed, it drops a hidden.bat batch file on the current working directory, which was also found to be undetectable. This file consists of an obfuscated PowerShell script that embeds the batch file with the tmp.vbs file for executing with the csscript.exe process.

Extraction and Exfiltration

As for the information stealing, the malware creates a folder with the name of the compromised PC for storing the stolen information. Post this, the malware starts to steal information from several browsers, including Microsoft Edge, Google Chrome, Opera, Mozilla Firefox, and 14 other browsers. 

Furthermore, the stealer is also capable of targeting financial data, such as saved credit cards and login credentials, collecting bookmarks and wallet extension data, taking screenshots, and much more.

A complete report about this Akira stealer malware has been published by Cyfirma, which provides detailed information about the malware behavior, source code, and other information.

Indicators of Compromise

S.No Indicators Type Context
1 016dfdd45c8208d246d59327c40355e0 MD5 Hash 3989X_NORD_VPN_PREMIUM_HITS.txt.cmd
2 b14262297bdfc61e2103eed6d77dce42bd3076c31912b4143151dfa36f751411 SHA-256 Hash 3989X_NORD_VPN_PREMIUM_HITS.txt.cmd
3 81e7ff1742d45075305a2082b1a7ac9d MD5 Hash hidden.bat
4 03564dc699f82f7e5d52046d82863ceddc6d657c66c0078f88cfe9cf1953187b SHA-256 Hash hidden.bat
5 4027c802411f8b4091c5c4eb077efa49 MD5 Hash File.zip
6 50e36d96cb593c39afa2fc11ac25c976f0ff1586159d2eb2626902e6d6062f81 SHA-256 Hash File.zip
7 Akira[.]red Domain C2 server
8 https[:]//akira[.]red/pyst.txt URL C2 server
9 https[:]//akira[.]red/inj.php URL C2 server
10 https[:]//api[.]gofile[.]io/getServer URL Data exfiltration
11 https[:]//store11[.]gofile[.]io/uploadFile URL Data exfiltration
12 https[:]//store1[.]gofile[.]io/uploadFile URL Data exfiltration
13 https[:]//store4[.]gofile[.]io/uploadFile URL Data exfiltration
14 https[:]//discord[.]com/api/webhooks/1145738132550078484/px0c3QsngkzQX39aXJP-vKODDYwvODftHl6j83epN0ndbZ0O_DQ7D6vhFVDcluj0rLey URL Data exfiltration
15 https[:]//store7[.]gofile[.]io/download/direct/13d3e926-8be7-4c15-a1d9-f0e809ec1f14/m2[.]zip URL Malware download
16 https://t[.]me/AkiraRedBot URL Telegram channel
17 https://t[.]me/akiraundetector URL Telegram channel

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