MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6a8764f48723b273ce89f68cd92e5346cd72c8fb859d409b2907837c70c52d01. 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: 19


Intelligence 19 IOCs YARA 20 File information Comments
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SHA256 hash: 6a8764f48723b273ce89f68cd92e5346cd72c8fb859d409b2907837c70c52d01
SHA3-384 hash: 22417f02f1c65b7d3befadcb4abeaa77d9f0b202da03b9f23cae760a718f3fc7b41d3e6ce1cc82b2d94c25b78f9cec5a
SHA1 hash: 529a9b6cd5eaafab33aabff56db058cb2e0ad03f
MD5 hash: 61576dd97f0dc1b3e8375de9f6f56dc8
humanhash: blue-three-freddie-fix
File name:Client.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:3'266'048 bytes
First seen:2024-01-08 09:59:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'665 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 49152:HvCI22SsaNYfdPBldt698dBcjHtqRJ6gbR3LoGdsTHHB72eh2NT:HvP22SsaNYfdPBldt6+dBcjHtqRJ66
Threatray 319 similar samples on MalwareBazaar
TLSH T1EEE56B143BF85E27E1BBE277A5B0041267F0FC1AF363EB0B6581677A1C53B5098426A7
TrID 37.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
29.5% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
8.4% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
6.7% (.SCR) Windows screen saver (13097/50/3)
5.3% (.EXE) Win64 Executable (generic) (10523/12/4)
Reporter smica83
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
325
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
6a8764f48723b273ce89f68cd92e5346cd72c8fb859d409b2907837c70c52d01.exe
Verdict:
Malicious activity
Analysis date:
2024-01-08 10:21:54 UTC
Tags:
quasar
Link:
https://app.any.run/tasks/6b485089-036b-4de8-b930-d56e47507d22

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
QuasarStealer
Create hunting rule
Link:
https://www.capesandbox.com/analysis/469855/
Detection(s):
Win.Malware.Generic-9883083-0
Create hunting rule

Win.Malware.Msilheracles-9900242-0
Create hunting rule

ditekSHen.MALWARE.Win.Trojan.QuasarStealer.UNOFFICIAL
Create hunting rule

Win.Packed.Downeks-6898097-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Launching a process
Sending a custom TCP request
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm certreq control crypto expand explorer hook infostealer keylogger lolbin quasar quasarrat rat remote replace schtasks stealer stealer
Link:
https://www.filescan.io/uploads/659bc7a5784d3498d739f7dd/reports/b20124cc-1d70-46ff-8fb9-f79a884747fc/overview
Verdict:
Malicious
Labled as:
Trojan.MSIL.Quasar
Link:
https://www.hybrid-analysis.com/sample/6a8764f48723b273ce89f68cd92e5346cd72c8fb859d409b2907837c70c52d01
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.
Malware family:
Quasar RAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2c1e6a44-a68b-472d-a93c-96fbafe363ab
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1371141
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Quasar
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Generic Downloader
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/6a8764f48723b273ce89f68cd92e5346cd72c8fb859d409b2907837c70c52d01
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6a8764f48723b273ce89f68cd92e5346cd72c8fb859d409b2907837c70c52d01/
Threat name:
ByteCode-MSIL.Trojan.Quasar
Create hunting rule
Status:
Malicious
First seen:
2024-01-07 14:45:20 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
28 of 37 (75.68%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nkdwj5eheozhhtuj62gnslsti3gxfsh3qwoubgzja6bxy4gffuaq._file
Verdict:
malicious
Similar samples:
02f0a7f184fcdaaa4d9a46ca29712c8daae0a46d2038bd362dc818025df8d553
QuasarRAT
5abb3690139201632ca77d335dc003268eaf58f2fa0736fb187d843e597a2c9b
QuasarRAT
96a244b32e73bac08510839a1137c41941ff4b18b1171c9fde09d0603b2477a7
QuasarRAT
c328534fe8df97ccd8ff9fec54f6760f2aa9c0af3f4aa49268d83c1bbafcde19
QuasarRAT
c7550dc220b264239f7250607d6af8a0123107be4c377a3c94e5f8e63984b17d
QuasarRAT
d7a8958c5fde707a0943fb7021e254fd142fb434f4d9b7fcd03f1857ddfeeea9
QuasarRAT
e844192fb4c52758db729e18e8898fe0921bdbe1e2d3ac3da6a6b5d2cedecb71
QuasarRAT
+ 309 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:doede spyware trojan
Link:
https://tria.ge/reports/240108-l1mtvagdc7/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
94.130.171.180:4782
Unpacked files
SH256 hash:
6a8764f48723b273ce89f68cd92e5346cd72c8fb859d409b2907837c70c52d01
MD5 hash:
61576dd97f0dc1b3e8375de9f6f56dc8
SHA1 hash:
529a9b6cd5eaafab33aabff56db058cb2e0ad03f
Detections:
QuasarRAT
Create hunting rule
malware_windows_xrat_quasarrat
Create hunting rule
win_quasarrat_j2
Create hunting rule
MALWARE_Win_QuasarStealer
Create hunting rule
cn_utf8_windows_terminal
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
MAL_QuasarRAT_May19_1
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_GENInfoStealer
Create hunting rule
Link:
https://www.unpac.me/results/22b93e1c-505e-4da4-8797-c121991f5885/
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6a8764f48723/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/6a8764f48723b273ce89f68cd92e5346cd72c8fb859d409b2907837c70c52d01

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:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:Diff_QuasarRAT_01
Create hunting rule
Author:schmidtsz
Description:Identify QuasarRAT samples
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_GENInfoStealer
Create hunting rule
Author:ditekSHen
Description:Detects executables containing common artifacts observed in infostealers
Rule name:MALWARE_Win_QuasarStealer
Create hunting rule
Author:ditekshen
Description:Detects Quasar infostealer
Rule name:MAL_QuasarRAT_May19_1
Create hunting rule
Description:Detects QuasarRAT malware
Rule name:MAL_QuasarRAT_May19_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:MAL_QuasarRAT_May19_1_RID2E1E
Create hunting rule
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:RC6_Constants
Create hunting rule
Author:chort (@chort0)
Description:Look for RC6 magic constants in binary
Reference:https://twitter.com/mikko/status/417620511397400576
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_quasar_rat_client
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in Quasar Rat Samples.

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/469855/

Comments