MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bdeec4adcae05874a1a5727a910e9522781550b5b3acfefa03ac20565785e6fe. 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 11 File information Comments
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SHA256 hash: bdeec4adcae05874a1a5727a910e9522781550b5b3acfefa03ac20565785e6fe
SHA3-384 hash: cb1ae9908512e144d4af9c0144577893f5c605599aae2f79491dd2dbda5a7467c162e8bf0c71c58c260010da7010b88a
SHA1 hash: e41cee2e671893c42f4c0f510fe842d8d415c5bb
MD5 hash: 627510a72d55ef0cafe6bfb3532d2c63
humanhash: eighteen-ceiling-moon-beer
File name:bdeec4adcae05874a1a5727a910e9522781550b5b3acfefa03ac20565785e6fe
Download: download sample
Signature CobaltStrike
Create hunting rule
File size:259'584 bytes
First seen:2020-10-24 21:21:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash c926f9c1072c505dcda18fded7763236 (1 x CobaltStrike)
ssdeep 3072:CKYBqaBciH//chgPMi0UbDbDCRUCnhqxmTKHCJdHyC6FT3bXlV49tnkl+l6K9xlP:CKYBTMiTDuciATr1Krn8+hf3T3b
Threatray 32 similar samples on MalwareBazaar
TLSH 9F445A4572A07CB9EC67C779CA53462BEFF27C254630D71F03680A9A0F277A1A22D752
Reporter seifreed
Tags:CobaltStrike

Intelligence

File Origin
# of uploads :
1
# of downloads :
105
Origin country :
n/a
Vendor Threat Intelligence
Detection:
CobaltStrikeBeacon
Create hunting rule
Link:
https://www.capesandbox.com/analysis/75294/
Detection(s):
Win.Trojan.CobaltStrike-8091534-0
Create hunting rule

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

Win.Tool.Razy-9778192-0
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Sending a UDP request
Result
Threat name:
CobaltStrike
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/508803
Signature
Contains functionality to detect sleep reduction / modifications
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Exe Launched By ReflectiveLoader Dll
Yara detected CobaltStrike
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 303519 Sample: 7MF71ckWmF Startdate: 24/10/2020 Architecture: WINDOWS Score: 88 16 Malicious sample detected (through community Yara rule) 2->16 18 Multi AV Scanner detection for submitted file 2->18 20 Yara detected CobaltStrike 2->20 22 3 other signatures 2->22 7 loaddll64.exe 1 2->7         started        process3 process4 9 rundll32.exe 7->9         started        12 rundll32.exe 7->12         started        signatures5 24 Contains functionality to detect sleep reduction / modifications 9->24 14 WerFault.exe 20 9 12->14         started        process6
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bdeec4adcae05874a1a5727a910e9522781550b5b3acfefa03ac20565785e6fe/
Threat name:
Win64.Backdoor.CobaltStrikeBeacon
Create hunting rule
Status:
Malicious
First seen:
2020-10-20 04:59:20 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xxxmjlok4bmhjinfoj5jcduvej4bkufvwowp56qdvqqfmv4f437a._file
Verdict:
malicious
Label(s):
cobaltstrike
Create hunting rule
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CobaltStrike
05815c1e6e37cf16bb24c456836069a7709df19505708d26f503ff46360001ba
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15073e335455478c4bf28954f35f6ab8f692527786b3d4436acb0e55097bb952
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39a7738c00d6a5dcc4709ad2e3f0b57565f7dc0325bdb5942c3e696c5736bc5a
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87dca59ec3d55bcb1b05da564e5ce0a164ab633f1c46a18a97f72a30efff7388
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9a7d2b2c96ee9b7b0ddc1665988d935a719f04cdb2b2dd331ec36aa4f6597506
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9c3b7ba8d375f19993312a6ac20418e0d107d73b30d585e9ad3646e150ff7c5a
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a32e37ae08d6a723dff7313d96bc7e23fe9b7db18295e2916f3c935530329919
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d44d718c247b1664861f987b1725314f152e43e7c1da80b163f812e1b7c3fdb7
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df953c14e606e73ee478340153acb90999e8ba3546a01088546fd92bff03eedc
CobaltStrike
+ 22 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
n/a
Link:
https://tria.ge/reports/201024-jj9e7sgtca/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Malware Config
C2 Extraction:
http://ns1.farma-salud.es:53/ga.js
http://ns2.farma-salud.es:53/push
Unpacked files
SH256 hash:
bdeec4adcae05874a1a5727a910e9522781550b5b3acfefa03ac20565785e6fe
MD5 hash:
627510a72d55ef0cafe6bfb3532d2c63
SHA1 hash:
e41cee2e671893c42f4c0f510fe842d8d415c5bb
Detections:
win_cobalt_strike_auto
Create hunting rule
Link:
https://www.unpac.me/results/2706e079-4191-4dff-9c9c-ca039571d928/
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/bdeec4adcae05874a1a5727a910e9522781550b5b3acfefa03ac20565785e6fe

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: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_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: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
Cape
Cape
https://www.capesandbox.com/analysis/75294/

Comments