MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 43bb1caa3132a11a1ada5b96f58868740acf3aeaf35287655ef22bc27ee31532. 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: 6


Intelligence 6 IOCs YARA 12 File information Comments
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SHA256 hash: 43bb1caa3132a11a1ada5b96f58868740acf3aeaf35287655ef22bc27ee31532
SHA3-384 hash: 797081dddf2547f593a2704732a0d4da6315956ecfa05acf2782fe58abdb99bbd1b1deb183acb0fb900730d64a30e56d
SHA1 hash: 2e1ff2999a8958ba0c6cdaff39c3bf21173a12f6
MD5 hash: 2e19b59cee9d9d6e79908f6d56305650
humanhash: winner-juliet-green-zulu
File name:43bb1caa3132a11a1ada5b96f58868740acf3aeaf35287655ef22bc27ee31532
Download: download sample
Signature CobaltStrike
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File size:224'768 bytes
First seen:2020-09-08 14:09:25 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 829da329ce140d873b4a8bde2cbfaa7e (259 x CobaltStrike)
ssdeep 3072:24CVT30YvxgMyGotoh4HtYS2cgBF73vl/9fULV/taX3ZmFHKwq4V1Ul5arQpiZb:BaT1gMy5W8KSmH7fl/ZURapyHKwSOrQ
TLSH 7D24E0B3B38294A3E5D4F9FCE8A514FD6EA2938355AC5421E9605F033CC9529FCC9386
Reporter JAMESWT_WT
Tags:39.108.159.100 CobaltStrike

Intelligence

File Origin
# of uploads :
1
# of downloads :
102
Origin country :
n/a
Vendor Threat Intelligence
Detection:
CobaltStrikeBeacon
Create hunting rule
Link:
https://www.capesandbox.com/analysis/57939/
Detection(s):
SecuriteInfo.com.Crypt5.BLLV.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Connection attempt
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/43bb1caa3132a11a1ada5b96f58868740acf3aeaf35287655ef22bc27ee31532/
Threat name:
Win32.Trojan.Rozena
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Status:
Malicious
First seen:
2020-08-12 16:59:16 UTC
File Type:
PE (Exe)
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=io5rzkrrgkqrugw2lolplcdioqfm6oxk6njiozk66iv4e7xdcuza._file
Result
Malware family:
n/a
Score:
  4/10
Tags:
n/a
Link:
https://tria.ge/reports/200908-3vx2t52h7n/
Behaviour
Modifies data under HKEY_USERS
Suspicious use of AdjustPrivilegeToken
Drops file in Windows directory
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/43bb1caa3132a11a1ada5b96f58868740acf3aeaf35287655ef22bc27ee31532

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_DarkHydrus_Jul18_5
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Author:Florian Roth
Description:Detects strings found in malware samples in APT report in DarkHydrus
Reference:https://researchcenter.paloaltonetworks.com/2018/07/unit42-new-threat-actor-group-darkhydrus-targets-middle-east-government/
Rule name:Beacon_K5om
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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_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
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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
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Author:Florian Roth
Description:Detects PowerShell invocation with suspicious parameters
Reference:https://goo.gl/uAic1X
Rule name:ReflectiveLoader
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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
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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.

  
X
https://twitter.com/malwrhunterteam/status/1303333974283104256?s=20
Cape
Cape
https://www.capesandbox.com/analysis/57939/

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