MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 15f61307b521c6c1bf445d1065ed94ded22fef1350bc931ac7b169a52bd39d22. 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: 10


Intelligence 10 IOCs YARA 15 File information Comments

SHA256 hash: 15f61307b521c6c1bf445d1065ed94ded22fef1350bc931ac7b169a52bd39d22
SHA3-384 hash: 3558ebada8f52485f180e7f9d8e76f8021819b14cab5d4ec96ff25cc0661ed144feeb8d4272fc1cdec4127780fa55b24
SHA1 hash: c521bbf4d212df861bececc86ab8a58d0dffc43c
MD5 hash: 2ecd65950269336d24e8de0413fce158
humanhash: indigo-lactose-indigo-yellow
File name:cs.exe
Download: download sample
Signature CobaltStrike
File size:224'256 bytes
First seen:2021-09-24 13:17:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 829da329ce140d873b4a8bde2cbfaa7e (259 x CobaltStrike)
ssdeep 6144:dmsyQ+pmxaHBIuuq/PuK/06z9W+/0HprHIq/LcHRRRRRRRRRRRRRRRRRRRR3RR3Y:ksyx5Oul/l/0+9Wfd7/LcHRRRRRRRRRx
Threatray 541 similar samples on MalwareBazaar
TLSH T19324E07C24AD68E6E5131B3684D5E5B03FFED3AFD7110940ED50EC5CBA5AC2B0A89236
Reporter drb_ra
Tags:CobaltStrike

Intelligence


File Origin
# of uploads :
1
# of downloads :
546
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
cobaltstrike_shellcode.exe
Verdict:
No threats detected
Analysis date:
2021-09-24 13:17:49 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
CobaltStrikeBeacon
Malware family:
CobaltStrike
Verdict:
Malicious
Result
Threat name:
CobaltStrike
Detection:
malicious
Classification:
troj
Score:
96 / 100
Signature
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Found malware configuration
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:
Threat name:
Win32.Trojan.CobaltStrike
Status:
Malicious
First seen:
2021-09-24 13:18:16 UTC
AV detection:
24 of 28 (85.71%)
Threat level:
  5/5
Result
Malware family:
cobaltstrike
Score:
  10/10
Tags:
family:cobaltstrike botnet:1359593325 backdoor trojan
Behaviour
Modifies system certificate store
Cobaltstrike
Malware Config
C2 Extraction:
http://ec2-54-183-123-73.us-west-1.compute.amazonaws.com:8743/v1/updateCheck
Unpacked files
SH256 hash:
f5fcbcc6c2686c04a777816f5f8e968382a9cfe6ad889176fc570bb9b1e9339e
MD5 hash:
a91e97c938d6c3b1448daf0cdafd0e02
SHA1 hash:
e85bfe424fd8d760222c458098dfc11cbfb6e7c6
SH256 hash:
7c23a6d0eb9fdb32097677227c413ea6eca52ad2f62b56cf1ecc844aceb9b751
MD5 hash:
3b8096c72e8cc1de4d3456fb4f5a5580
SHA1 hash:
64d5aedfdbd02d5bd6f91e27e28f27ba53bdbfac
SH256 hash:
15f61307b521c6c1bf445d1065ed94ded22fef1350bc931ac7b169a52bd39d22
MD5 hash:
2ecd65950269336d24e8de0413fce158
SHA1 hash:
c521bbf4d212df861bececc86ab8a58d0dffc43c
Malware family:
Cobalt Strike
Verdict:
Malicious
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:Cobaltbaltstrike_strike_Payload_XORed
Author:Avast Threat Intel Team
Description:Detects CobaltStrike payloads
Reference:https://github.com/avast/ioc
Rule name:CobaltStrikeBeacon
Author:ditekshen, enzo & Elastic
Description:Cobalt Strike Beacon Payload
Rule name:CobaltStrike_ReflectiveLoader_RID3297
Author:Florian Roth
Description:Detects reflective loader (Cobalt Strike)
Reference:http://www.clearskysec.com/tulip
Rule name:CobaltStrike_Unmodifed_Beacon
Author:yara@s3c.za.net
Description:Detects unmodified CobaltStrike beacon DLL
Rule name:crime_win32_csbeacon_1
Author:@VK_Intel
Description:Detects Cobalt Strike loader
Reference:https://twitter.com/VK_Intel/status/1239632822358474753
Rule name:CS_beacon
Author:Etienne Maynier tek@randhome.io
Rule name:HKTL_CobaltStrike_Beacon_4_2_Decrypt
Author:Elastic
Description:Identifies deobfuscation routine used in Cobalt Strike Beacon DLL version 4.2
Reference:https://www.elastic.co/blog/detecting-cobalt-strike-with-memory-signatures
Rule name:HKTL_CobaltStrike_Beacon_Strings
Author:Elastic
Description:Identifies strings used in Cobalt Strike Beacon DLL
Reference:https://www.elastic.co/blog/detecting-cobalt-strike-with-memory-signatures
Rule name:HKTL_Meterpreter_inMemory
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:HKTL_Unlicensed_CobaltStrike_EICAR_Jul18_5
Author:Florian Roth
Description:Detects strings found in CobaltStrike shellcode
Reference:https://researchcenter.paloaltonetworks.com/2018/07/unit42-new-threat-actor-group-darkhydrus-targets-middle-east-government/
Rule name:HKTL_Unlicensed_CobaltStrike_EICAR_Jul18_5_RID361D
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:HKTL_Win_CobaltStrike
Author:threatintel@volexity.com
Description:The CobaltStrike malware family.
Reference:https://www.volexity.com/blog/2021/05/27/suspected-apt29-operation-launches-election-fraud-themed-phishing-campaigns/
Rule name:INDICATOR_SUSPICIOUS_ReflectiveLoader
Author:ditekSHen
Description:detects Reflective DLL injection artifacts
Rule name:ReflectiveLoader
Author:Florian Roth
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
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.

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