MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8b681d031297cba8158e0d245cc422f2c59151ec1c7639056c1d9c75f377c792. 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: 5


Intelligence 5 IOCs YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8b681d031297cba8158e0d245cc422f2c59151ec1c7639056c1d9c75f377c792
SHA3-384 hash: 8fc1c44694dc190ebca983f01c6e0bdbd7bf06d7d9e2cf5d9744f9ec552d4c98bca5a5481074326e595c1cd118a206be
SHA1 hash: af9537ff2491977635957372405be5a3a477db85
MD5 hash: 09c9556fda5b854520da565a0f265182
humanhash: bulldog-wyoming-salami-floor
File name:09c9556fda5b854520da565a0f265182
Download: download sample
Signature CobaltStrike
Create hunting rule
File size:16'896 bytes
First seen:2020-11-17 12:28:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 384:sYfKGpytNko+SRJFM1zyRQTKU1TptasnpH/7iHKiqwJwekJFCn9XY:sYfNcNT0WQKo9pH/GawJwjWhY
Threatray 138 similar samples on MalwareBazaar
TLSH B3723D2969E9512DE573FF713DE83AD6DDEEAB633801155B1485030B8D12F80EE42A3E
Reporter seifreed
Tags:CobaltStrike

Intelligence

File Origin
# of uploads :
1
# of downloads :
66
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Deleting a recently created file
Sending a custom TCP request
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8b681d031297cba8158e0d245cc422f2c59151ec1c7639056c1d9c75f377c792/
Threat name:
Win32.Trojan.Ymacco
Create hunting rule
Status:
Malicious
First seen:
2020-11-08 17:21:56 UTC
AV detection:
20 of 29 (68.97%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rnub2ayss7f2qfmobusfzrbc6lczcupmdr3dsblmdwohl43xy6ja._file
Verdict:
malicious
Label(s):
cobaltstrike
Create hunting rule
Similar samples:
129aefff5a7c2da45e7c0afe8bfbe3a16c437328ee569640d0c90a7c91de0dd7
CobaltStrike
a1d9d1784959597859b70af8479ecb3a5eb577be1bcf10dc2b57fd7beb3ba874
CobaltStrike
a32e37ae08d6a723dff7313d96bc7e23fe9b7db18295e2916f3c935530329919
CobaltStrike
c380f48e3d649b6a44b05134108a8c79536f289240e9ed9135e35dadffb6c350
CobaltStrike
c5597c29f2c4b319d151a62e448202f3af45b2edd28d95513f44badd3292623c
CobaltStrike
cca380d18764adc6589cb94018c7a3cec6daa125c2909dd26a531c448501c8dc
CobaltStrike
ec2f156359e30aaf1929dff8f4b97deba32fe642d7fb8a76ba2346605c2d94d0
CobaltStrike
f4d129a8289b89a4a8d385d89702bae3c7b5fcf9d32c3b1eee61bc0245bfb99a
CobaltStrike
fdc5ae1a23f456d6edd75da1dedb29f1b8425292a6318d8e1374b3e1769fb7fe
CobaltStrike
ffeab3a518bf3b9216d7a23d2ac471aa4cc9f2f45571d32677b5ef5b8d6a6ee1
CobaltStrike
+ 128 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/201117-4hsdwcsefs/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Unpacked files
SH256 hash:
8b681d031297cba8158e0d245cc422f2c59151ec1c7639056c1d9c75f377c792
MD5 hash:
09c9556fda5b854520da565a0f265182
SHA1 hash:
af9537ff2491977635957372405be5a3a477db85
Link:
https://www.unpac.me/results/4fc532d2-0ddd-4b07-8b2b-c89da4d93824/
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: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:CobaltStrikeBeacon
Create hunting rule
Author:enzo
Description:Cobalt Strike Beacon Payload
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

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