MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8fdc007dd13e7c0c5bbe426da723499db81518697eb84d2fd2a0181996d276fa. 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: 9


Intelligence 9 IOCs YARA 14 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8fdc007dd13e7c0c5bbe426da723499db81518697eb84d2fd2a0181996d276fa
SHA3-384 hash: 962920fac202f4ef773259c8c8425906f0320ff34c0f592f7b2e11af2402975a5625511041d2b371076d28bdfd446bd4
SHA1 hash: bf06fd8d9920621a17d8b9f3224af4add77f12f2
MD5 hash: db9417657dd8710cd71894216dae9275
humanhash: pluto-nevada-leopard-robin
File name:db9417657dd8710cd71894216dae9275.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:4'670'976 bytes
First seen:2021-01-04 17:42:22 UTC
Last seen:2021-01-04 19:22:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'451 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 98304:obLx1NLLfGqCPNYInhBJPQnhTmJIT77c+eLI8xXhYFzzHJgb:obLx/fGLO8QnaW7/eLI8xqNT0
Threatray 77 similar samples on MalwareBazaar
TLSH 6F261220B2B0CDF7F563027138247188257EA28762D5824EAA377AE44377B75F1DCE66
Reporter abuse_ch
Tags:exe QuasarRAT RAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
188
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
db9417657dd8710cd71894216dae9275.exe
Verdict:
Malicious activity
Analysis date:
2021-01-04 17:43:08 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/c5227c8a-e078-4037-9dc7-453bdde9b6c2

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/110419/
Detection(s):
SecuriteInfo.com.Trojan.InjectNET.14.21292.29662.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Creating a process with a hidden window
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:
evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/573611
Signature
.NET source code contains potential unpacker
Contains functionality to hide a thread from the debugger
Hides threads from debuggers
Injects a PE file into a foreign processes
Multi AV Scanner detection for submitted file
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 335866 Sample: EnJsj6nuD4.exe Startdate: 04/01/2021 Architecture: WINDOWS Score: 88 31 Sigma detected: Scheduled temp file as task from temp location 2->31 33 Multi AV Scanner detection for submitted file 2->33 35 Yara detected AntiVM_3 2->35 37 3 other signatures 2->37 7 EnJsj6nuD4.exe 8 2->7         started        process3 file4 23 C:\Users\user\AppData\Local\Temp\tmpAAB.tmp, XML 7->23 dropped 25 C:\Users\user\AppData\...nJsj6nuD4.exe.log, ASCII 7->25 dropped 27 C:\Users\user\AppData\...\vJYGpqLvzOlIE.exe, PE32 7->27 dropped 39 Injects a PE file into a foreign processes 7->39 41 Contains functionality to hide a thread from the debugger 7->41 11 EnJsj6nuD4.exe 1 7->11         started        15 schtasks.exe 1 7->15         started        17 EnJsj6nuD4.exe 7->17         started        19 EnJsj6nuD4.exe 7->19         started        signatures5 process6 dnsIp7 29 185.157.162.81, 1973, 49753, 49762 OBE-EUROPEObenetworkEuropeSE Sweden 11->29 43 Hides threads from debuggers 11->43 21 conhost.exe 15->21         started        signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8fdc007dd13e7c0c5bbe426da723499db81518697eb84d2fd2a0181996d276fa/
Threat name:
ByteCode-MSIL.Packed.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-01-04 17:43:06 UTC
AV detection:
12 of 28 (42.86%)
Threat level:
  1/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=r7oaa7orhz6ayw56ijw2oi2jtw4bkgdjp24e2l6suambtfwso35a._file
Verdict:
malicious
Similar samples:
0b2d09d8e19e018c6f927ca3d8d21dbd467cd66dd6f66dc969f15ca47dab3935
QuasarRAT
12f2ee1cc6d06299b1a044cae83201d6550122a5e4ea1b3211415aba57059f14
QuasarRAT
3905f8d441908527f02140c7e2b9939978d824485dba4fa15ebe247d42385f05
QuasarRAT
39e866b9998243e9107cabc7329774e0d6413ada36814d7ebbd93a3235a82390
QuasarRAT
58c1046e89d30e010cf06d797b4171d4f67c2186eb413048e68884ac37698ac5
QuasarRAT
72e1047dc517256cd82e774100a7d81b1a35c3449f4eb34f310b770679d430b5
QuasarRAT
904f9d09f6729501708bff5b7d690e25a69025f4a2ae207996db9f97670d0748
QuasarRAT
af4df90789a38930e17df309cb35d20e61e9c3ceacc1935718e4958eb05fbced
QuasarRAT
deb5aeda39ad04b441ddbca22caa3a35e572483cc56e6a095b951342e716d6f6
QuasarRAT
e3154d853187b18659c637d16cb0a1fdd48c1bfa53c5d39aa11e1ed3db471dbd
QuasarRAT
+ 67 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/210104-j1nsd6pwg6/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
6156555d83a8aea3c3d184e25a38d6dffc7cc44e3d4628d9c6e2c7bfea77bc98
MD5 hash:
cf69971cd1bd84cbe2069713e5896ed7
SHA1 hash:
1ec0480906fe380ee749dff7fbb59657cec45530
Link:
https://www.unpac.me/results/20854b6e-12d9-4f1e-9362-cc09658734ff/
SH256 hash:
64a419709ad219ffc006bda776b650da486d55048d2fa34525f40227da0e5c86
MD5 hash:
88c0ec8398978fa2e4240f02765086ad
SHA1 hash:
5a5c4935b2d70e890c89ad9332365f4f4aa86f3c
Link:
https://www.unpac.me/results/20854b6e-12d9-4f1e-9362-cc09658734ff/
SH256 hash:
152ec035d1b3f6a661bc5f6c2a931a90b3afc7241b1017d9b2f89022467fc340
MD5 hash:
da08e61fd8f5c324465f6b07ca3d1e93
SHA1 hash:
f1c2aa23927b9449e3ccc89e3c13bc6db788c70f
Link:
https://www.unpac.me/results/20854b6e-12d9-4f1e-9362-cc09658734ff/
SH256 hash:
8fdc007dd13e7c0c5bbe426da723499db81518697eb84d2fd2a0181996d276fa
MD5 hash:
db9417657dd8710cd71894216dae9275
SHA1 hash:
bf06fd8d9920621a17d8b9f3224af4add77f12f2
Link:
https://www.unpac.me/results/20854b6e-12d9-4f1e-9362-cc09658734ff/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/8fdc007dd13e7c0c5bbe426da723499db81518697eb84d2fd2a0181996d276fa

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:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
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:Email_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Email in files like avemaria
Rule name:INDICATOR_SUSPICIOUS_GENInfoStealer
Create hunting rule
Author:ditekSHen
Description:Detects executables containing common artifcats observed in infostealers
Rule name:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
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:MSILStealer
Create hunting rule
Author:https://github.com/hwvs
Description:Detects strings from C#/VB Stealers and QuasarRat
Reference:https://github.com/quasar/QuasarRAT
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_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:Select_from_enumeration
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
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

File information

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

Web download

QuasarRAT

Executable exe 8fdc007dd13e7c0c5bbe426da723499db81518697eb84d2fd2a0181996d276fa

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/948783/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/110419/

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