MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8bd39d451b99909467edb3df6618762071da426ee580108882e300cf8b21b0cb. 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: 6


Intelligence 6 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8bd39d451b99909467edb3df6618762071da426ee580108882e300cf8b21b0cb
SHA3-384 hash: 584c9745d5d882ea98d7d0c37bb2d87a88b263cf237904762e3695a3f7c900ab60f93153536d78df3356814a56958743
SHA1 hash: 71f150e066f818cb2baa8a8dafc6d1ad8990e70a
MD5 hash: 2d600afb254e226b141b9ac0838eaeae
humanhash: apart-solar-lion-magazine
File name:YASA TANKER.appointment.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:805'888 bytes
First seen:2020-09-01 15:28:59 UTC
Last seen:2020-09-02 13:23:41 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 24576:7nMKJz6/1Ydi8av/JXvGpyna+0XbnuuL0UH:D0p7J/Gpya/dL3
Threatray 46 similar samples on MalwareBazaar
TLSH D305239266ADC736DAFF4FFE21A8315103B4725B0819F35D5ECAA0EF2A237415611E83
Reporter James_inthe_box
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
122
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/54075/
Detection(s):
SecuriteInfo.com.W32.Trojan-7.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
DNS request
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Reading critical registry keys
Setting a global event handler for the keyboard
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/456761
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Injects a PE file into a foreign processes
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
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to steal Mail credentials (via file access)
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8bd39d451b99909467edb3df6618762071da426ee580108882e300cf8b21b0cb/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-09-01 15:28:25 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rpjz2ri3tgijiz7nwppwmgdweby5uqto4wabbcec4mam7czbwdfq._file
Verdict:
unknown
Similar samples:
41c204502ea4669d177cfd6e65384876343837073058923644f77ce73fcc56dc
QuasarRAT
6592c22fa9ba295820bfa259711ec8592417ba1048e3b8baea6a39cc0e95bca3
QuasarRAT
9007d5c1eecef73c5cef31b64da68425f7930e96ef519d2c5a7ebb59236b32e2
QuasarRAT
99d95e515d6b6d03f2e625afd4bb2cbd78309cf0d4331d174ca7b9dc845d61c0
QuasarRAT
a89a031dfd0e3e2a92183bf3741f42668132dd8a4dc852bfe142159e0963d03f
QuasarRAT
cc8fa9d4f6d859988f39c5e4302e7a1bfdb42e5f893fdcfe2e06cd793b6c82c5
QuasarRAT
ee923a4dd9e77a796c589b01ed52bfd3d5b72502e8307c9c362a2d9f6379d197
QuasarRAT
f9d4b5a6ceb760e51a22cd28679287821ae16f4166f72e1a12d1afab178c859c
QuasarRAT
fb067717fc9d9a8023cf036649c4f5eedc7a37620ac1cfe7dc1369604d6e7217
QuasarRAT
fcf91187ef2c69fdf1737f8d3a94693e11403b0275537e082acd4baa8889441d
QuasarRAT
+ 36 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
spyware
Link:
https://tria.ge/reports/200901-c4peq8zrjx/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Modifies data under HKEY_USERS
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Suspicious use of SetThreadContext
Looks up external IP address via web service
Reads user/profile data of web browsers
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/8bd39d451b99909467edb3df6618762071da426ee580108882e300cf8b21b0cb

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:masslogger_gcch
Create hunting rule
Author:govcert_ch
Rule name:Quasar_RAT_1
Create hunting rule
Author:Florian Roth
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
Rule name:win_masslogger_w0
Create hunting rule
Author:govcert_ch

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/54075/

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