MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 da533e79efe356df581f530f4830b868e63c4d2c089975e929b91403d01ecc37. 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 14 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: da533e79efe356df581f530f4830b868e63c4d2c089975e929b91403d01ecc37
SHA3-384 hash: 2352bbd52c73665f9c0d9128693b916538932a89681932261c2d5c9dc85be86d357dd292ad58d1ce9e303586bc8727af
SHA1 hash: 7432bda53c86ddf02631ddfeaeb603b552eeeb09
MD5 hash: 2c03fc2340da808fd4c7cfed7dfaa130
humanhash: football-princess-queen-potato
File name:da533e79efe356df581f530f4830b868e63c4d2c089975e929b91403d01ecc37
Download: download sample
Signature CobaltStrike
Create hunting rule
File size:206'848 bytes
First seen:2020-10-24 21:21:09 UTC
Last seen:Never
File type:DLL dll
MIME type:application/x-dosexec
imphash f2e0b7b9a08bd8dcaf133d9278ecdb47 (40 x CobaltStrike)
ssdeep 3072:Pjh9N4a1j712h9Td2+1lxvTeZna8xUhUbT15Z:PjdFKdoSxvixTxUA
Threatray 98 similar samples on MalwareBazaar
TLSH 0E148DA131C4D036D0570479624BC77E5EBDFDF416B19487BF841AA69E713A3EB2A203
Reporter seifreed
Tags:CobaltStrike

Intelligence

File Origin
# of uploads :
1
# of downloads :
100
Origin country :
n/a
Vendor Threat Intelligence
Detection:
CobaltStrikeBeacon
Create hunting rule
Link:
https://www.capesandbox.com/analysis/75290/
Detection(s):
Win.Trojan.CobaltStrike-8091534-0
Create hunting rule

Win.Tool.CobaltStrike-6336852-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:
Result
Threat name:
CobaltStrike
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/508806
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
Yara detected CobaltStrike
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 303520 Sample: TwOBayjbXb Startdate: 24/10/2020 Architecture: WINDOWS Score: 76 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 2 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 23 9 9->13         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/da533e79efe356df581f530f4830b868e63c4d2c089975e929b91403d01ecc37/
Threat name:
Win32.Backdoor.CobaltStrikeBeacon
Create hunting rule
Status:
Malicious
First seen:
2020-10-24 08:04:22 UTC
AV detection:
26 of 28 (92.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=3jjt46pp4nln6wa7kmhuqmfyndtdytjmbcmxl2jjxekahua6zq3q._file
Verdict:
malicious
Label(s):
cobaltstrike
Create hunting rule
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CobaltStrike
3d8e63b6e83da5e0c57246f860e38f77642e8570c0b40e81fc8e72f6255c2233
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4b459c85c8425e368325d8844148e6a058d350374eb721a3da26c4e85ba26973
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5e627b14e776856c2904f622b43da929fbc41c1d0b753cd0f98913d8eeaf3544
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60b57a5e5fe515104f57a44c136e7ddaac0d72b099c3959a26493b8c47f66e3f
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8a148932d87847341a5cc3e93ba144ea1332229a4334a951449b7458169533bc
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c83163a6e61b2bf3852b426f8ccccac4044d57b2b4514125624632e836f51660
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cb9edffdd7ae34c58f62caf55729711de9c60fa796ffd03635f5815cc8eedf3b
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cec36e8ed65ac6f250c05b4a17c09f58bb80c19b73169aaf40fa15c8d3a9a6a1
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fc4c45524b459ee65fff5e9bc484cb1209cf89cff5e9e5a534d439533a95ceed
CobaltStrike
+ 88 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
n/a
Link:
https://tria.ge/reports/201024-gb81fvr8k2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Malware Config
C2 Extraction:
http://49.235.230.115:8080/fwlink
Unpacked files
SH256 hash:
da533e79efe356df581f530f4830b868e63c4d2c089975e929b91403d01ecc37
MD5 hash:
2c03fc2340da808fd4c7cfed7dfaa130
SHA1 hash:
7432bda53c86ddf02631ddfeaeb603b552eeeb09
Detections:
win_cobalt_strike_auto
Create hunting rule
Link:
https://www.unpac.me/results/6a04390d-dec9-4fa3-a37e-06001d55c75e/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
CobaltStrike
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/da533e79efe356df581f530f4830b868e63c4d2c089975e929b91403d01ecc37

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:CobaltStrike_C2_Encoded_Config_Indicator
Create hunting rule
Author:yara@s3c.za.net
Description:Detects CobaltStrike C2 encoded profile configuration
Rule name:CobaltStrike_Unmodifed_Beacon
Create hunting rule
Author:yara@s3c.za.net
Description:Detects unmodified CobaltStrike beacon DLL
Rule name:crime_win32_csbeacon_1
Create hunting rule
Author:@VK_Intel
Description:Detects Cobalt Strike loader
Reference:https://twitter.com/VK_Intel/status/1239632822358474753
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: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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/75290/

Comments