MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b2a64d1e8433dfdbd937c9b71862beb3160ffd482456cf4576e3f3ad0f930a7f. 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: 9


Intelligence 9 IOCs YARA 19 File information Comments

SHA256 hash: b2a64d1e8433dfdbd937c9b71862beb3160ffd482456cf4576e3f3ad0f930a7f
SHA3-384 hash: 3d69307eae70bbce1e720d2c246c88947b8794c450fc092e0d08ac6e4a653e82699db3607d287697908c19e939896b6c
SHA1 hash: 28b286d2a9ac0854a89b53d94270a46cd5cf7358
MD5 hash: 3ce914f84b39fd469ba24ca0173f2c19
humanhash: white-uniform-glucose-carpet
File name:ToolEndpoint.exe
Download: download sample
Signature CobaltStrike
File size:348'160 bytes
First seen:2021-07-08 18:42:37 UTC
Last seen:2021-07-09 01:02:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 27ca6f1b27f540e38f487efce4782e42 (3 x CobaltStrike, 1 x Dridex)
ssdeep 6144:wlklsHqEpRXM3uJRKzYvpkJbH4EPlXL6G/R1vSf:yklEqSM3uJ1xk9YEPlXLOf
Threatray 338 similar samples on MalwareBazaar
TLSH T1347412F4D6A148A8CD418AB1905AF3B72D454BF432848837FEC2DCBC48909D516BB7B7
Reporter Anonymous
Tags:CobaltStrike exe


Avatar
Anonymous
E-mail subject: "Kaseya update information about incident xxxxxxx from response team."

Intelligence


File Origin
# of uploads :
3
# of downloads :
529
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
https://cdn.discordapp.com/attachments/862587996568944674/862600775875297300/ToolEndpoint.exe
Verdict:
Malicious activity
Analysis date:
2021-07-08 17:20:43 UTC
Tags:
trojan cobaltstrike

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
CobaltStrike
Verdict:
Malicious
Result
Threat name:
CobaltStrike
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Tries to detect sandboxes / dynamic malware analysis system (file name check)
Tries to detect virtualization through RDTSC time measurements
Yara detected CobaltStrike
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
Threat name:
Win32.PUA.CobaltStrikeBeacon
Status:
Malicious
First seen:
2021-07-08 13:12:22 UTC
AV detection:
13 of 29 (44.83%)
Threat level:
  1/5
Result
Malware family:
cobaltstrike
Score:
  10/10
Tags:
family:cobaltstrike botnet:1359593325 backdoor trojan
Behaviour
Cobaltstrike
Malware Config
C2 Extraction:
http://193.239.84.213:80/j.ad
Unpacked files
SH256 hash:
d767c0a9584ad5dc64a86af6c9bd7023c3293d55f3197d7edceeee1ef85b18dd
MD5 hash:
478d6fc6a91a4d061da2eedc5c60ea40
SHA1 hash:
a0cd7794e61b998ba761e5185bff6b187e939d0a
SH256 hash:
994dc1f2461a428a6b6495553fe29134a5713717af9854828c947ff65790c1ad
MD5 hash:
6869f80ec20ccec3371b02e2df75eac2
SHA1 hash:
3904e16e8e609d750795540fb7950e609bb4e45d
SH256 hash:
b2a64d1e8433dfdbd937c9b71862beb3160ffd482456cf4576e3f3ad0f930a7f
MD5 hash:
3ce914f84b39fd469ba24ca0173f2c19
SHA1 hash:
28b286d2a9ac0854a89b53d94270a46cd5cf7358
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:CobaltStrikeBeacon
Author:enzo
Description:Cobalt Strike Beacon Payload
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:DridexV4
Author:kevoreilly
Description:Dridex v4 Payload
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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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.

  
Delivery method
Distributed via e-mail link

Comments