MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a0c8b257c07608f436b12250b4e1dca22b9221b1d660beb55caad1366a1c222f. 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



QuasarRAT


Vendor detections: 12


Intelligence 12 IOCs YARA 10 File information Comments

SHA256 hash: a0c8b257c07608f436b12250b4e1dca22b9221b1d660beb55caad1366a1c222f
SHA3-384 hash: 48f6af0d53b30a690f5898a9b5d0a4e85f346e6cffcbe11b6119d42ee2909919da7073f82229615bc7abac635ab3ba88
SHA1 hash: 4b32fc83a6847c5a8842fd8d2134fee5a1e520b7
MD5 hash: b311da9fc3515c5dd35403e8f587a557
humanhash: sink-thirteen-mountain-jig
File name:b311da9fc3515c5dd35403e8f587a557.exe
Download: download sample
Signature QuasarRAT
File size:2'828'800 bytes
First seen:2021-10-12 08:51:12 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 49152:2/jrBmB972a8m+PzAUJMZihDMz4YmPU1cK84b5HIkvfqI:gjNuB2a8ZPzpJdDMz4YXz
Threatray 15 similar samples on MalwareBazaar
TLSH T180D55A1537FC1E27D16E97B6C1B1400257F0F86AB363E7AB6681A7790C23F506E422A7
Reporter abuse_ch
Tags:exe QuasarRAT RAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
160
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
https://www.mediafire.com/file/q3g8x6bcijba9s4/fort.rar/file
Verdict:
Malicious activity
Analysis date:
2021-10-11 15:22:41 UTC
Tags:
evasion trojan

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

Behaviour
Reading critical registry keys
Creating a window
Using the Windows Management Instrumentation requests
Launching a service
DNS request
Connection attempt
Sending an HTTP GET request
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm evasive fingerprint obfuscated quasar rat stealer
Result
Verdict:
MALICIOUS
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:
Unknown
Detection:
malicious
Classification:
troj.spyw.evad
Score:
76 / 100
Signature
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
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)
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Redlinestealer
Status:
Malicious
First seen:
2021-10-11 19:34:00 UTC
AV detection:
14 of 23 (60.87%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
spyware stealer
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Looks up external IP address via web service
Reads user/profile data of web browsers
Unpacked files
SH256 hash:
a0c8b257c07608f436b12250b4e1dca22b9221b1d660beb55caad1366a1c222f
MD5 hash:
b311da9fc3515c5dd35403e8f587a557
SHA1 hash:
4b32fc83a6847c5a8842fd8d2134fee5a1e520b7
Malware family:
RedLine.B
Verdict:
Malicious
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:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_CryptoWallets
Author:ditekSHen
Description:Detects executables referencing many cryptocurrency mining wallets or apps. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:MALWARE_Win_BotSh1zoid
Author:ditekSHen
Description:Detects BotSh1zoid
Rule name:pe_imphash
Rule name:pe_imphash
Rule name:Quasar_RAT_1
Author:Florian Roth
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
Rule name:Quasar_RAT_1_RID2B54
Author:Florian Roth
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
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.

Web download

QuasarRAT

Executable exe a0c8b257c07608f436b12250b4e1dca22b9221b1d660beb55caad1366a1c222f

(this sample)

  
Delivery method
Distributed via web download

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