MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d4eb976709f04788663e6d6487f7a102eb3bcdcf3bf5841d02a52945a1baa5d7. 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: 8


Intelligence 8 IOCs YARA 16 File information Comments
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SHA256 hash: d4eb976709f04788663e6d6487f7a102eb3bcdcf3bf5841d02a52945a1baa5d7
SHA3-384 hash: 6b3dbf47817cfd8073baa6a1bb143db94e6537791b31276ca5b418dad8079950acdd2c21bd40ce7fb0aaa10595737223
SHA1 hash: 508815702604b183f95efa4d23f847c3636480eb
MD5 hash: c6aaceb7ef5146672e2e543cdaa7b28b
humanhash: wolfram-mango-maryland-ohio
File name:d4eb976709f04788663e6d6487f7a102eb3bcdcf3bf5841d02a52945a1baa5d7
Download: download sample
Signature CobaltStrike
Create hunting rule
File size:212'480 bytes
First seen:2020-11-11 11:39:41 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 199c3b2f92d728912bb206ea499d43f1 (179 x CobaltStrike)
ssdeep 3072:3FnWP+ZEIOy50z0sYtD+qByJKMqQYjz6Nj+RgXSnxrJcsvwPH6j5UpYA53:3ogazw5+qBagcCRgGMDPaj3C
Threatray 106 similar samples on MalwareBazaar
TLSH 2724AFA17581C476C04A0075A60FCB7E9B79A8F459B1D487FB5C0EA89E722E3DB36303
Reporter seifreed
Tags:CobaltStrike

Intelligence

File Origin
# of uploads :
1
# of downloads :
63
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Win.Trojan.CobaltStrike-8091534-0
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Win.Tool.CobaltStrike-6336852-0
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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:
CobaltStrike
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/531861
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: 315031 Sample: J5wPKtn7jE Startdate: 12/11/2020 Architecture: WINDOWS Score: 76 12 Malicious sample detected (through community Yara rule) 2->12 14 Antivirus / Scanner detection for submitted sample 2->14 16 Multi AV Scanner detection for submitted file 2->16 18 2 other signatures 2->18 6 loaddll32.exe 1 2->6         started        process3 process4 8 rundll32.exe 6->8         started        10 rundll32.exe 6->10         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d4eb976709f04788663e6d6487f7a102eb3bcdcf3bf5841d02a52945a1baa5d7/
Threat name:
Win32.PUA.CobaltStrikeBeacon
Create hunting rule
Status:
Malicious
First seen:
2020-11-11 11:46:23 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2tvzozyj6bdyqzr6nvsip55balvtxtophp2yihicuuuulin2uxlq._file
Verdict:
malicious
Label(s):
cobaltstrike
Create hunting rule
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CobaltStrike
2e7403807afe677a28efe5dbbf2b48edafa90cac07ff2756def2044cf0d19684
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3f9805063f7cb10f5500b76121fa27a62f5bc97eb6944cc8608400631595231f
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623ec9739a929c33ce48d82a53cecc9c2dedd8f91be9c222e7f5301b53743887
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6a2b54efbbed493c42ee91c59f8d1f761b1e6afb7736f6fbd439ccec41da33eb
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7654260af55ece2834e4b6c1a0a7d27185eb0b5bdb44e296a0e32c95fc381473
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bb9982522dd72db35eac1ce961fd2a697c1155333fcd483f35f23ff5bf8233ff
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d1c694864523ee13235c70fb120b4605c07f840a0d2cee2b2707c7dfc9ec45f4
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ecb6a123de429f9d83e4458baf28a63315a9216ae347ba2f0eb6e2cfef658ec5
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eec6242c2d70a864c633f68dc49ce4437eeb2e91c24785b2a3a16be7c17a5d4a
CobaltStrike
+ 96 additional samples on MalwareBazaar
Result
Malware family:
cobaltstrike
Create hunting rule
Score:
  10/10
Tags:
family:cobaltstrike
Link:
https://tria.ge/reports/201111-zf7y4r6mn2/
Behaviour
Suspicious use of WriteProcessMemory
Unpacked files
SH256 hash:
d4eb976709f04788663e6d6487f7a102eb3bcdcf3bf5841d02a52945a1baa5d7
MD5 hash:
c6aaceb7ef5146672e2e543cdaa7b28b
SHA1 hash:
508815702604b183f95efa4d23f847c3636480eb
Link:
https://www.unpac.me/results/2704f3cf-1ca6-42d0-a195-92064232a81c/
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
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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:CobaltStrike_Sleep_Decoder_Indicator
Create hunting rule
Author:yara@s3c.za.net
Description:Detects CobaltStrike sleep_mask decoder
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
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Author:Florian Roth
Description:Detects Cobalt Strike sample from Leviathan report
Reference:https://goo.gl/MZ7dRg
Rule name:Malware_QA_vqgk
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Author:Florian Roth
Description:VT Research QA uploaded malware - file vqgk.dll
Reference:VT Research QA
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: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

File information

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

  
Delivery method
Other

Comments