MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8fad3190f946b88c729be6cd98c87b9bdc5ee9ed966b5c89776665a316471ad9. 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: 13


Intelligence 13 IOCs YARA 17 File information Comments 1

SHA256 hash: 8fad3190f946b88c729be6cd98c87b9bdc5ee9ed966b5c89776665a316471ad9
SHA3-384 hash: 3d55f69f433bc3df0ae03eba2423cead5a6d1b6db23d8aac7ecd0678bb066a1e1e063e2835f6ba6404606947b9dbdd41
SHA1 hash: 8ef525ef2889ca3fe6d40391c127f3bc0c0815b7
MD5 hash: 8ffdda74390bca8ecb399d1b37868977
humanhash: arizona-king-pennsylvania-finch
File name:8ffdda74390bca8ecb399d1b37868977
Download: download sample
Signature CobaltStrike
File size:284'672 bytes
First seen:2021-08-30 22:55:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash dc25ee78e2ef4d36faa0badf1e7461c9 (118 x CobaltStrike, 5 x Cobalt Strike)
ssdeep 6144:pRVTg7nOngOY9zX1slOmfX3QWRrb3+2cv:pjUyncdX1slOmfnbOl
Threatray 519 similar samples on MalwareBazaar
TLSH T1F354CF5B23069993D940F479D9A1B634FF6B58DF0A20061F8FC4288E8EEC459B46BFD1
Reporter zbetcheckin
Tags:32 CobaltStrike exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
159
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
8ffdda74390bca8ecb399d1b37868977
Verdict:
Malicious activity
Analysis date:
2021-08-30 22:55:47 UTC
Tags:
trojan cobaltstrike

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

Behaviour
Connection attempt
Sending an HTTP GET 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
Sigma detected: CobaltStrike Named Pipe
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Uses known network protocols on non-standard ports
Yara detected CobaltStrike
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.CobaltStrike
Status:
Malicious
First seen:
2021-08-30 22:56:05 UTC
AV detection:
38 of 46 (82.61%)
Threat level:
  5/5
Result
Malware family:
cobaltstrike
Score:
  10/10
Tags:
family:cobaltstrike botnet:0 backdoor trojan
Behaviour
Cobaltstrike
Malware Config
C2 Extraction:
http://111.90.151.16:81/fwlink
Unpacked files
SH256 hash:
2be845d3899eb116e5b43849aa47868602ee353d2dc3e097b97a7986294175d5
MD5 hash:
8d5e20a91ab977874cb6badc24355abb
SHA1 hash:
f8e49930a2c180a362efcc10753b4499019af6b8
SH256 hash:
8fad3190f946b88c729be6cd98c87b9bdc5ee9ed966b5c89776665a316471ad9
MD5 hash:
8ffdda74390bca8ecb399d1b37868977
SHA1 hash:
8ef525ef2889ca3fe6d40391c127f3bc0c0815b7
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:Beacon_K5om
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_C2_Encoded_XOR_Config_Indicator
Author:yara@s3c.za.net
Description:Detects CobaltStrike C2 encoded profile configuration
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_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:Leviathan_CobaltStrike_Sample_1
Author:Florian Roth
Description:Detects Cobalt Strike sample from Leviathan report
Reference:https://goo.gl/MZ7dRg
Rule name:Malware_QA_vqgk
Author:Florian Roth
Description:VT Research QA uploaded malware - file vqgk.dll
Reference:VT Research QA
Rule name:MALWARE_Win_CobaltStrike
Author:ditekSHen
Description:CobaltStrike payload
Rule name:PowerShell_Susp_Parameter_Combo
Author:Florian Roth
Description:Detects PowerShell invocation with suspicious parameters
Reference:https://goo.gl/uAic1X
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:SUSP_XORed_Mozilla
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
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.

Web download

CobaltStrike

Executable exe 8fad3190f946b88c729be6cd98c87b9bdc5ee9ed966b5c89776665a316471ad9

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2021-08-30 22:55:16 UTC

url : hxxp://111.90.151.16:8080/download/mstsc.exe