MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c8277e88b37878917b46d509324a57846d58e285c3e06720a282e7bb34fd9bc0. 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: 18


Intelligence 18 IOCs YARA 21 File information Comments
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SHA256 hash: c8277e88b37878917b46d509324a57846d58e285c3e06720a282e7bb34fd9bc0
SHA3-384 hash: c2226419d2261ee41a1eb47427111916f5db2e75b31f15d9ba9c56a0e2f83a9b9558cd1c4c8be18d82071d0f5cbf1f26
SHA1 hash: a180b34c6f9cc519d1d3773904c56c3d952ca423
MD5 hash: 46b23e41aeba2bb731b8ae3e22a7e5dc
humanhash: eight-florida-early-video
File name:stub.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:356'352 bytes
First seen:2023-05-14 18:59:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'672 x AgentTesla, 19'489 x Formbook, 12'212 x SnakeKeylogger)
ssdeep 6144:+2NHXf500MGQqCgPsccwxdbNNepgFVswka:1d50yzVteGjswka
Threatray 419 similar samples on MalwareBazaar
TLSH T10C748C6373A4E93BD1BD1B3AE436061587B0D447BF0AE38B5A5851BA3D233868D503B7
TrID 53.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
12.0% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
9.5% (.SCR) Windows screen saver (13097/50/3)
7.6% (.EXE) Win64 Executable (generic) (10523/12/4)
4.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
Reporter r3dbU7z
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
333
Origin country :
RU RU
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
stub.exe
Verdict:
Malicious activity
Analysis date:
2023-05-14 19:25:23 UTC
Tags:
rat quasar evasion
Link:
https://app.any.run/tasks/37ee79bf-b2c2-4b0d-834f-9fcc8a9ab81a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
QuasarRAT
Create hunting rule
Link:
https://www.capesandbox.com/analysis/389853/
Detection(s):
Win.Packed.Generic-9829635-0
Create hunting rule

Win.Trojan.Generic-9829636-0
Create hunting rule

Win.Packed.Generic-9830106-0
Create hunting rule

Win.Trojan.Generic-6295765-0
Create hunting rule

Win.Malware.Generic-6623004-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Sending a custom TCP request
Setting a keyboard event handler
Creating a file in the %AppData% subdirectories
Creating a window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm fingerprint infostealer keylogger packed quasar quasarrat rat shell32.dll stealer stealer vermin xrat
Link:
https://www.filescan.io/uploads/64612fb3f571536d03116302/reports/82cd5a4c-41bd-44c0-8c7d-1ee8dbec191f/overview
Verdict:
Malicious
Labled as:
MSIL.PasswordStealerA.Generic
Link:
https://www.hybrid-analysis.com/sample/c8277e88b37878917b46d509324a57846d58e285c3e06720a282e7bb34fd9bc0
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/804f6bf8-981c-4c0e-aa4c-f26bdd7661f0
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1232885
Signature
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
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
Snort IDS alert for network traffic
Yara detected Generic Downloader
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c8277e88b37878917b46d509324a57846d58e285c3e06720a282e7bb34fd9bc0/
Threat name:
ByteCode-MSIL.Backdoor.QuasarRAT
Create hunting rule
Status:
Malicious
First seen:
2023-05-14 19:00:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zatx5cftpb4jc62g2uetessxqrwvryufypqgoifcqlt3wnh5tpaa._file
Verdict:
malicious
Similar samples:
2b8e46b7d6a130a487fd2ec995792b32bf3857b897e688ed4bde08a693f44f31
QuasarRAT
695722bddb32724a102d8d12aca0ebc841c4944f52632c3ea595941a6e988759
QuasarRAT
6ff685e5acfd946101b558f9f9d47a0d515c62e7476f5f83694609d64343315e
QuasarRAT
724ff8546f194ffa5aadb446a00a6476aceedda46114bb9ad8f8ad9f32e27493
QuasarRAT
aff9dae78f13a7e13244cf022de01470272b00e4f6961a40a61c9e9c9b8ca7ed
QuasarRAT
c0393c1c87a785bc946286f6053de656560728aec5e9f97a8eddf12ee0f4b8a4
QuasarRAT
d6fd21b13e5ffc0c0e56118f2154ede679b0100afdbf093a660d5dc7a427f34b
QuasarRAT
+ 409 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:new2 spyware trojan
Link:
https://tria.ge/reports/230514-xnl8bsfe31/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Looks up external IP address via web service
Quasar RAT
Quasar payload
Malware Config
C2 Extraction:
asyfguas.con-ip.com:555
Unpacked files
SH256 hash:
c8277e88b37878917b46d509324a57846d58e285c3e06720a282e7bb34fd9bc0
MD5 hash:
46b23e41aeba2bb731b8ae3e22a7e5dc
SHA1 hash:
a180b34c6f9cc519d1d3773904c56c3d952ca423
Detections:
QuasarRAT
Create hunting rule
Link:
https://www.unpac.me/results/1fc27bf9-8f5d-41e2-a030-02055e64598e/
Malware family:
xRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c8277e88b378/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/c8277e88b37878917b46d509324a57846d58e285c3e06720a282e7bb34fd9bc0

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:CN_disclosed_20180208_KeyLogger_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects malware from disclosed CN malware set
Reference:https://www.virustotal.com/graph/#/selected/n120z79z208z189/drawer/graph-details
Rule name:CN_disclosed_20180208_KeyLogger_1_RID3227
Create hunting rule
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://www.virustotal.com/graph/#/selected/n120z79z208z189/drawer/graph-details
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 artifcats observed in infostealers
Rule name:malware_Quasar_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect QuasarRAT in memory
Rule name:MALWARE_Win_QuasarRAT
Create hunting rule
Author:ditekSHen
Description:QuasarRAT payload
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
Create hunting rule
Description:Detects QuasarRAT malware
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:pe_imphash
Create hunting rule
Rule name:Quasar_RAT_1
Create hunting rule
Author:@SOCRadar
Description:Detects Quasar RAT
Rule name:Quasar_RAT_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
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
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:Quasar_RAT_2
Create hunting rule
Description:Detects Quasar RAT
Rule name:Quasar_RAT_2
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Quasar RAT
Reference:https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf
Rule name:Quasar_RAT_2_RID2B55
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:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Vermin_Keylogger_Jan18_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Vermin Keylogger
Reference:https://researchcenter.paloaltonetworks.com/2018/01/unit42-vermin-quasar-rat-custom-malware-used-ukraine/
Rule name:Windows_Trojan_Quasarrat_e52df647
Create hunting rule
Author:Elastic Security
Rule name:xRAT_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Patchwork malware
Reference:https://goo.gl/Pg3P4W
Rule name:xRAT_1_RID2900
Create hunting rule
Author:Florian Roth
Description:Detects Patchwork malware
Reference:https://goo.gl/Pg3P4W

File information

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

Web download

QuasarRAT

Executable exe c8277e88b37878917b46d509324a57846d58e285c3e06720a282e7bb34fd9bc0

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/389853/

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