MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 55b0a37a4f1052226d668680a2c0fcee431da34adccd38811f34eb008c145389. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



AsyncRAT


Vendor detections: 8


Intelligence 8 IOCs YARA 3 File information Comments

SHA256 hash: 55b0a37a4f1052226d668680a2c0fcee431da34adccd38811f34eb008c145389
SHA3-384 hash: ebeb68669c261b683f75575edd767385856cf1f8322bbc375c9909c20be74b68e57af8e1b9694797cb92349a7ab53e32
SHA1 hash: b25b5eea09233c72abf5afb5edd679d7fa0e947c
MD5 hash: 5263a68fbabcf65d366bef4ec8ff791a
humanhash: beer-louisiana-carbon-mango
File name:file
Download: download sample
Signature AsyncRAT
File size:2'242'048 bytes
First seen:2022-08-27 14:40:30 UTC
Last seen:2022-08-29 12:57:31 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'647 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 49152:WmOBqmlqagCgT98MKiuvmlz0Hvpv3q9M4LsRrfYSBxGw3:Qqmkag9ubrul6pfWkrfzB
Threatray 335 similar samples on MalwareBazaar
TLSH T123A512E9164EDFB1C6DC16B8DE3570472AB41D021A035E339D7E3E0BF999A8679C0E90
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon b072d0dcbebaa2a2 (8 x RecordBreaker, 7 x RedLineStealer, 3 x ArkeiStealer)
Reporter andretavare5
Tags:AsyncRAT exe


Avatar
andretavare5
Sample downloaded from https://vk.com/doc572676066_643486203?hash=wifu0DShe5QYTbRBMcuEB2hbecBuhZsVV8yZzzwwGGT&dl=GU3TENRXGYYDMNQ:1661611057:7ZTdHaEiPVfN0iQqDaaei66lvC8jIDELMxz7qiMCunT&api=1&no_preview=1#appsetup

Intelligence


File Origin
# of uploads :
7
# of downloads :
326
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2022-08-27 14:42:23 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Clean
Maliciousness:

Behaviour
Сreating synchronization primitives
Sending an HTTP GET request
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Sending a custom TCP request
Creating a file in the system32 subdirectories
Searching for the window
Creating a file
Creating a file in the %AppData% subdirectories
Moving a file to the %AppData% subdirectory
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
AsyncRAT, Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
Encrypted powershell cmdline option found
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Crypto Currency Wallets
Yara detected AsyncRAT
Yara detected Generic Downloader
Yara detected Vidar stealer
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 691444 Sample: file Startdate: 27/08/2022 Architecture: WINDOWS Score: 100 37 Malicious sample detected (through community Yara rule) 2->37 39 Antivirus detection for URL or domain 2->39 41 Yara detected Vidar stealer 2->41 43 6 other signatures 2->43 8 file.exe 15 4 2->8         started        process3 dnsIp4 31 193.106.191.223, 49717, 80 BOSPOR-ASRU Russian Federation 8->31 29 C:\Users\user\AppData\Local\...\file.exe.log, ASCII 8->29 dropped 45 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 8->45 47 Encrypted powershell cmdline option found 8->47 13 aspnet_compiler.exe 19 8->13         started        17 powershell.exe 18 8->17         started        file5 signatures6 process7 dnsIp8 33 t.me 149.154.167.99, 443, 49734 TELEGRAMRU United Kingdom 13->33 35 159.69.100.194, 49736, 80 HETZNER-ASDE Germany 13->35 49 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 13->49 51 Tries to harvest and steal browser information (history, passwords, etc) 13->51 53 Tries to steal Crypto Currency Wallets 13->53 19 cmd.exe 1 13->19         started        21 conhost.exe 17->21         started        signatures9 process10 process11 23 taskkill.exe 1 19->23         started        25 conhost.exe 19->25         started        27 timeout.exe 1 19->27         started       
Threat name:
ByteCode-MSIL.Infostealer.Bandra
Status:
Malicious
First seen:
2022-08-27 14:41:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
12 of 26 (46.15%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
spyware stealer
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses 2FA software files, possible credential harvesting
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks computer location settings
Loads dropped DLL
Unpacked files
SH256 hash:
55b0a37a4f1052226d668680a2c0fcee431da34adccd38811f34eb008c145389
MD5 hash:
5263a68fbabcf65d366bef4ec8ff791a
SHA1 hash:
b25b5eea09233c72abf5afb5edd679d7fa0e947c
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:pdb_YARAify
Author:@wowabiy314
Description:PDB
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


The table below shows additional information about this malware sample such as delivery method and external references.

  
Dropped by
PrivateLoader
  
Delivery method
Distributed via drive-by

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