MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 840dd55418bf2bd428f401ee565f08aef2c92eab8b4709158a845dd981dc090e. 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: 11


Intelligence 11 IOCs YARA 11 File information Comments

SHA256 hash: 840dd55418bf2bd428f401ee565f08aef2c92eab8b4709158a845dd981dc090e
SHA3-384 hash: 7e954e449e79448c1874cab7b0a19111cf70af0e454896263d75553ed3aff2f9885e3e9c04c2b8e6fec3ee0439c4d01d
SHA1 hash: 62d21804e79f0030553cdc8f86710b9fa3c88296
MD5 hash: 0a437fb1e3676922ae25f6be9222cb1b
humanhash: friend-nineteen-jupiter-spaghetti
File name:cs.exe
Download: download sample
Signature CobaltStrike
File size:226'816 bytes
First seen:2021-09-01 09:20:00 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 829da329ce140d873b4a8bde2cbfaa7e (259 x CobaltStrike)
ssdeep 6144:FkSxotDaZXrOXhSOstfidqTuX7qT7YDRKk8AYF4sOEt:aSxotDaUYv+qT6k7QRK5XFB
Threatray 483 similar samples on MalwareBazaar
TLSH T15724CE79880C38AADC66887B76454AF1CD9CA4CF0415493A0DCFACEEC75C6994A0FD9F
Reporter drb_ra
Tags:CobaltStrike

Intelligence


File Origin
# of uploads :
1
# of downloads :
550
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
cobaltstrike_shellcode.exe
Verdict:
No threats detected
Analysis date:
2021-09-01 09:19:59 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
CobaltStrikeBeacon
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Connection attempt
Sending a custom TCP request
Sending a UDP request
Malware family:
CobaltStrike
Verdict:
Malicious
Result
Threat name:
CobaltStrike
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Contains functionality to detect sleep reduction / modifications
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:
2021-09-01 09:20:08 UTC
AV detection:
39 of 45 (86.67%)
Threat level:
  5/5
Result
Malware family:
cobaltstrike
Score:
  10/10
Tags:
family:cobaltstrike botnet:2085473631 backdoor trojan
Behaviour
Modifies system certificate store
Cobaltstrike
Malware Config
C2 Extraction:
http://www.nytimes.com:443/access/
http://assets.wholefoodsmarket.com:443/access/
http://blog.wholefoods.com:443/access/
http://blog.wholefoodsmarket.com:443/access/
http://d.wholefoodsmarket.com:443/access/
http://delivery.wholefoods.com:443/access/
http://delivery.wholefoodsmarket.com:443/access/
http://m.wholefoods.com:443/access/
Unpacked files
SH256 hash:
88f4d29da53129c8dd543a93b66a346d03e23da74a067011355e74705891a941
MD5 hash:
b003f76bc2a28a997aba698c95c946e4
SHA1 hash:
1c56cb6cf02dc1c102924d5a3c47eb5248d92a62
SH256 hash:
ad0a968fb97f059c86a4aa3758e9a697ed431cc7b792f99de03acc12d1f5c7ab
MD5 hash:
0804121852e757b61ff3d23b95489439
SHA1 hash:
fbbeeb4653d1e15e68baef02a12c6de69c1b537b
SH256 hash:
840dd55418bf2bd428f401ee565f08aef2c92eab8b4709158a845dd981dc090e
MD5 hash:
0a437fb1e3676922ae25f6be9222cb1b
SHA1 hash:
62d21804e79f0030553cdc8f86710b9fa3c88296
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: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_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_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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