MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5ab1aac03c053e025319aac9bbe317a163d56bf4657819c6a43ffb97099ec322. 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: 15


Intelligence 15 IOCs YARA 18 File information Comments
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SHA256 hash: 5ab1aac03c053e025319aac9bbe317a163d56bf4657819c6a43ffb97099ec322
SHA3-384 hash: 59d7ed8fd38238eaef3af7218401ab4e9ff9804c0cfb3e8a7989449e70367247ae9f60b515d3a72e84ec5c4bd1ce6655
SHA1 hash: 8b31d6b61ee03da19817d3ffd59c0aa41ef32d81
MD5 hash: 7411c8d36761ca9edc88373cfc7a3cb7
humanhash: mars-sink-venus-maine
File name:7411c8d36761ca9edc88373cfc7a3cb7.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:355'840 bytes
First seen:2021-12-22 18:50:06 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:dZNHXf500MSZn/ARckwXrbyGJ6GBLnJtm4:bd50sx/tVbLJtm4
Threatray 268 similar samples on MalwareBazaar
TLSH T19A748D1377B4D53BD2FE073AE93206254BB0DA87B617E38B5A5856B86C133868D503B3
Reporter abuse_ch
Tags:exe QuasarRAT RAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
220
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
7411c8d36761ca9edc88373cfc7a3cb7.exe
Verdict:
Malicious activity
Analysis date:
2021-12-22 18:53:17 UTC
Tags:
rat quasar evasion trojan
Link:
https://app.any.run/tasks/3fc5353a-8753-4bb5-b850-3568f0717e5b

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/215838/
Detection(s):
Win.Packed.Passwordstealera-9792228-0
Create hunting rule

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
Searching for the window
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Launching a process
Creating a process from a recently created file
Creating a file
Setting a keyboard event handler
Creating a window
Sending a custom TCP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm fingerprint keylogger obfuscated packed quasar quasarrat rat stealer stealer vermin xrat
Link:
https://www.filescan.io/uploads/61c3739a8991ba72b39265b4/reports/5d437809-28a0-47a3-baf8-d1a5944e86fa/overview
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/89ccddad-b9a5-46b9-9253-762bf1b5d03d
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/911701
Signature
.NET source code references suspicious native API functions
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)
Installs a global keyboard hook
Machine Learning detection for dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Suspicious Svchost Process
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 544178 Sample: A3fTCqQPuO.exe Startdate: 22/12/2021 Architecture: WINDOWS Score: 100 38 jerenyankipong.duckdns.org 2->38 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 Antivirus / Scanner detection for submitted sample 2->54 56 7 other signatures 2->56 9 A3fTCqQPuO.exe 15 5 2->9         started        14 A3fTCqQPuO.exe 2 2->14         started        signatures3 process4 dnsIp5 40 ip-api.com 208.95.112.1, 49743, 49768, 80 TUT-ASUS United States 9->40 30 C:\Users\user\AppData\Roaming\...\Client.exe, PE32 9->30 dropped 32 C:\Users\user\AppData\...\A3fTCqQPuO.exe.log, ASCII 9->32 dropped 58 May check the online IP address of the machine 9->58 60 Uses schtasks.exe or at.exe to add and modify task schedules 9->60 62 Hides that the sample has been downloaded from the Internet (zone.identifier) 9->62 16 Client.exe 14 4 9->16         started        20 schtasks.exe 1 9->20         started        22 svchost.exe 1 9->22         started        file6 signatures7 process8 dnsIp9 34 jerenyankipong.duckdns.org 129.232.17.6, 4782, 49769, 49774 TELECOM-LESOTHOLS Lesotho 16->34 36 ip-api.com 16->36 42 Antivirus detection for dropped file 16->42 44 Multi AV Scanner detection for dropped file 16->44 46 May check the online IP address of the machine 16->46 48 3 other signatures 16->48 24 schtasks.exe 1 16->24         started        26 conhost.exe 20->26         started        signatures10 process11 process12 28 conhost.exe 24->28         started       
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5ab1aac03c053e025319aac9bbe317a163d56bf4657819c6a43ffb97099ec322/
Threat name:
ByteCode-MSIL.Trojan.Quasar
Create hunting rule
Status:
Malicious
First seen:
2021-12-22 14:55:43 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
34 of 43 (79.07%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=lky2vqb4au7aeuyzvle3xyyxufr5k27umv4btrveh75zocm6ymra._file
Verdict:
malicious
Similar samples:
0294e192621b21d5c8f2288496930fe5e947fd66cdff1a119ca2f8bbdd8a537e
QuasarRAT
0eaa5bbea25ef06214bc21deab41eb7f5bdcdd4c24b0297a28607d30edf65ae1
QuasarRAT
189dfc7eca70dc08e242e9079d35198826b189f27e919aaf13c4482a763ae1a3
QuasarRAT
2801e23864a2d65490e0ef7663d0d0e4292242f84d8368f0cdeefa868c375521
QuasarRAT
99a6c8e156dba4fda6e2b6ca0802cc08d49556b489e97618e565768329521413
QuasarRAT
b31fb3832c2f366796fcc9165c60c58da5c866973377ab0d43f71586c461b8fb
QuasarRAT
d478602bac8b8f334f06644dd92fbe60cbba6815ced96503c7aab4df6f305e77
QuasarRAT
e690896d7f40d40a1cdbeb6348a72207af6cd5e150d036a729760e23ac575816
QuasarRAT
e73cf978acde72a0ec094a6fe4302cd7e369624fe183057d01a1c47fd878324f
QuasarRAT
fec56ffb3c5a61bffba235044da127eae17d9772dbd3817b8a5ce8cad0e93cb1
QuasarRAT
+ 258 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:success spyware trojan
Link:
https://tria.ge/reports/211222-xgzvvagfdk/
Behaviour
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Looks up external IP address via web service
Loads dropped DLL
Executes dropped EXE
Quasar Payload
Quasar RAT
Malware Config
C2 Extraction:
jerenyankipong.duckdns.org:4782
Unpacked files
SH256 hash:
5ab1aac03c053e025319aac9bbe317a163d56bf4657819c6a43ffb97099ec322
MD5 hash:
7411c8d36761ca9edc88373cfc7a3cb7
SHA1 hash:
8b31d6b61ee03da19817d3ffd59c0aa41ef32d81
Link:
https://www.unpac.me/results/7b18abc2-e4b4-4d23-915e-781b33bc44c1/
Malware family:
Quasar
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/5ab1aac03c05/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/5ab1aac03c053e025319aac9bbe317a163d56bf4657819c6a43ffb97099ec322

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
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_Win_QuasarRAT
Create hunting rule
Author:ditekSHen
Description:QuasarRAT payload
Rule name:MAL_QuasarRAT_May19_1
Create hunting rule
Author:Florian Roth
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:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Quasar
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect QuasarRAT in memory
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: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
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_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
Description:Detects Vermin Keylogger
Reference:https://researchcenter.paloaltonetworks.com/2018/01/unit42-vermin-quasar-rat-custom-malware-used-ukraine/
Rule name:xRAT_1
Create hunting rule
Author:Florian Roth
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 5ab1aac03c053e025319aac9bbe317a163d56bf4657819c6a43ffb97099ec322

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/215838/
  
URLhaus
https://urlhaus.abuse.ch/url/1911187/
  
Delivery method
Distributed via web download

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