MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f56775b2bc86a692982b0013e1d3ed5445db708ebbb0e70001b9e6df1dfbd193. 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 11 File information Comments

SHA256 hash: f56775b2bc86a692982b0013e1d3ed5445db708ebbb0e70001b9e6df1dfbd193
SHA3-384 hash: fac9b7b808f00e6ff41bc4d3e89efc4fd6562a15157941a5d401d0a7b32352b48639ef19c60cd155cd726802672e25cf
SHA1 hash: 1c6124c84ef534da8ebef64f3f113bf67d844237
MD5 hash: c4aed86bb30fa130a642e501c720e445
humanhash: hawaii-comet-mirror-charlie
File name:CobaltStrike
Download: download sample
Signature CobaltStrike
File size:745'472 bytes
First seen:2020-09-17 15:21:55 UTC
Last seen:2020-09-17 15:38:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 5921aeea290c0e3152aaeadd24c33b43 (1 x CobaltStrike)
ssdeep 6144:jn9T9m2kl1hl78n49vI8rv7W2PpRIf5krvG85lPdzCMoHkpTmLmW/V5O:fald9vB/Pikrv/fPdGMo3qWL
Threatray 71 similar samples on MalwareBazaar
TLSH 22F427B9F5A7F238CC9F9D79905BA2BA80E508D069DF4D03F036C917B2824E7952DE11
Reporter JAMESWT_WT
Tags:CobaltStrike

Intelligence


File Origin
# of uploads :
2
# of downloads :
93
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Running batch commands
Creating a process with a hidden window
Launching a process
Sending a UDP request
Connection attempt
Result
Threat name:
CobaltStrike
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Signature
Antivirus / Scanner detection for submitted sample
Contains functionality to detect sleep reduction / modifications
Contains functionality to inject threads in other processes
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:
2020-07-29 10:52:00 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Behaviour
Modifies registry key
Suspicious use of WriteProcessMemory
Modifies registry key
Suspicious use of WriteProcessMemory
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_Sleep_Decoder_Indicator
Author:yara@s3c.za.net
Description:Detects CobaltStrike sleep_mask decoder
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: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: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:PowerShell_Susp_Parameter_Combo
Author:Florian Roth
Description:Detects PowerShell invocation with suspicious parameters
Reference:https://goo.gl/uAic1X
Rule name:ReflectiveLoader
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.

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