MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 08934079f330381b5a9bd3f4f089f328b77c26080aff49a3894b6e4de0d485bc. 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


CobaltStrike


Vendor detections: 9


Intelligence 9 IOCs YARA 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 08934079f330381b5a9bd3f4f089f328b77c26080aff49a3894b6e4de0d485bc
SHA3-384 hash: fb8f14b6a4efd52eb47dbc74cd7bcf3304060e2974d4a3cde4c3adfbc3a4f399b0eb702d3690c0d44087e3366277cb07
SHA1 hash: f6179da0ca78312643dd68675f13fd496630656c
MD5 hash: 54e09973da1818e1c74c58afb44309a1
humanhash: fanta-fillet-wyoming-vermont
File name:54e09973da1818e1c74c58afb44309a1.dll
Download: download sample
Signature CobaltStrike
Create hunting rule
File size:204'288 bytes
First seen:2020-11-20 07:38:31 UTC
Last seen:Never
File type:DLL dll
MIME type:application/x-dosexec
imphash e66a62b251fcfbbc930b074503d08542 (24 x CobaltStrike)
ssdeep 3072:HNEfMCK7JqusgLiKG5TnN7FgkQB7R80kUzRe5y1:SfM5dS/JBN7jiR80Vz
Threatray 253 similar samples on MalwareBazaar
TLSH E1148CA53184D032D45B0434674BC77E5E7CBDF016A1A987BFC81E5A9E716A3EB2A303
Reporter abuse_ch
Tags:CobaltStrike dll

Intelligence

File Origin
# of uploads :
1
# of downloads :
86
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:
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:
ReflectiveLoader CobaltStrike
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/543984
Signature
Antivirus / Scanner detection for submitted sample
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: ReflectiveLoader
Yara detected CobaltStrike
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 321093 Sample: 8MUnjYMiu8.dll Startdate: 20/11/2020 Architecture: WINDOWS Score: 84 15 Malicious sample detected (through community Yara rule) 2->15 17 Antivirus / Scanner detection for submitted sample 2->17 19 Multi AV Scanner detection for submitted file 2->19 21 3 other signatures 2->21 7 loaddll32.exe 1 2->7         started        process3 process4 9 rundll32.exe 7->9         started        11 rundll32.exe 7->11         started        process5 13 WerFault.exe 20 9 9->13         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/08934079f330381b5a9bd3f4f089f328b77c26080aff49a3894b6e4de0d485bc/
Threat name:
Win32.PUA.CobaltStrikeBeacon
Create hunting rule
Status:
Malicious
First seen:
2020-11-11 18:27:00 UTC
AV detection:
28 of 29 (96.55%)
Threat level:
  1/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=bcjua6ptga4bwwu32p2pbcptfc3xyjqibl7uti4jjnxe3yguqw6a._file
Verdict:
malicious
Label(s):
cobaltstrike
Create hunting rule
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1044f568614deacf998642d0b334f2a807323a8104c95bb63dd0bf9a3582792a
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135dc0447b4d637a67d79b5d8e7b1898b8b1f3609eaaba74234413a4e8b7e65c
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2c52595ab1893c638924dae5382e93857c85aa6e5352464747ef8e679ef28d01
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400752bfd286dfd2d38f1bb83d192200811a02fd8ed91bdb1ab4b28c7cb0ff6d
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61843389da67e196f0ac81507be872b2b932773e03b133dee0fe1613a6784a6b
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6cb2f8f6895c7bd10388fbb74d271a9adc5285933e78d155b33a3fab13a5863f
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744deacf002489d017c1b09453e52847ec125f79b6ed54cab48aec5a46094bfc
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92b093b1547bc3437f4a56d5fc3e72fca3cff6a61403b43125e47896719786ad
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d25e5a8313c6cbb5b22b24fdb0b5a67706b1d2a6920515ec2de2cc6f5551f848
CobaltStrike
+ 243 additional samples on MalwareBazaar
Result
Malware family:
cobaltstrike
Create hunting rule
Score:
  10/10
Tags:
family:cobaltstrike backdoor trojan
Link:
https://tria.ge/reports/201120-artt41g8gj/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Cobaltstrike
Malware Config
C2 Extraction:
http://85.143.220.196:8180/__utm.gif
Unpacked files
SH256 hash:
08934079f330381b5a9bd3f4f089f328b77c26080aff49a3894b6e4de0d485bc
MD5 hash:
54e09973da1818e1c74c58afb44309a1
SHA1 hash:
f6179da0ca78312643dd68675f13fd496630656c
Detections:
win_cobalt_strike_auto
Create hunting rule
Link:
https://www.unpac.me/results/a7cf53a6-2e9f-4ed3-9c9c-4c0994992422/
Please note that we are no longer able to provide a coverage score for Virus Total.

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:APT_CobaltStrike_Beacon_Indicator
Create hunting rule
Author:JPCERT
Description:Detects CobaltStrike beacons
Reference:https://github.com/JPCERTCC/aa-tools/blob/master/cobaltstrikescan.py
Rule name:Beacon_K5om
Create hunting rule
Author:Florian Roth
Description:Detects Meterpreter Beacon - file K5om.dll
Reference:https://www.fireeye.com/blog/threat-research/2017/06/phished-at-the-request-of-counsel.html
Rule name:CobaltStrike
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect CobaltStrike Beacon in memory
Reference:https://blogs.jpcert.or.jp/en/2018/08/volatility-plugin-for-detecting-cobalt-strike-beacon.html
Rule name:CobaltStrikeBeacon
Create hunting rule
Author:enzo
Description:Cobalt Strike Beacon Payload
Rule name:CobaltStrike_C2_Encoded_Config_Indicator
Create hunting rule
Author:yara@s3c.za.net
Description:Detects CobaltStrike C2 encoded profile configuration
Rule name:HKTL_Meterpreter_inMemory
Create hunting rule
Author:netbiosX, Florian Roth
Description:Detects Meterpreter in-memory
Reference:https://www.reddit.com/r/purpleteamsec/comments/hjux11/meterpreter_memory_indicators_detection_tooling/
Rule name:Leviathan_CobaltStrike_Sample_1
Create hunting rule
Author:Florian Roth
Description:Detects Cobalt Strike sample from Leviathan report
Reference:https://goo.gl/MZ7dRg
Rule name:Malware_QA_vqgk
Create hunting rule
Author:Florian Roth
Description:VT Research QA uploaded malware - file vqgk.dll
Reference:VT Research QA
Rule name:MALW_cobaltrike
Create hunting rule
Author:Marc Rivero | McAfee ATR Team
Description:Rule to detect CobaltStrike beacon
Rule name:PowerShell_Susp_Parameter_Combo
Create hunting rule
Author:Florian Roth
Description:Detects PowerShell invocation with suspicious parameters
Reference:https://goo.gl/uAic1X
Rule name:ReflectiveLoader
Create hunting rule
Description:Detects a unspecified hack tool, crack or malware using a reflective loader - no hard match - further investigation recommended
Reference:Internal Research
Rule name:Reflective_DLL_Loader_Aug17_2
Create hunting rule
Author:Florian Roth
Description:Detects Reflective DLL Loader - suspicious - Possible FP could be program crack
Reference:Internal Research
Rule name:SUSP_XORed_Mozilla
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:WiltedTulip_ReflectiveLoader
Create hunting rule
Author:Florian Roth
Description:Detects reflective loader (Cobalt Strike) used in Operation Wilted Tulip
Reference:http://www.clearskysec.com/tulip
Rule name:win_cobalt_strike_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

Comments