MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1928e9c98f5e26755861ed67d7061b18e755db0c29f853890086f06237a52820. 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 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1928e9c98f5e26755861ed67d7061b18e755db0c29f853890086f06237a52820
SHA3-384 hash: ec53b96616d518743514e37f7520e1033fe56eb82cd4a94507eb67cb4b25557bd0ffe14cfb845b45fb09d0bd1fec9a5f
SHA1 hash: 245613db8927c03e0138fbdd55199597446a8684
MD5 hash: b9280b89ba7760449eadd05983a32217
humanhash: moon-idaho-jupiter-missouri
File name:1928e9c98f5e26755861ed67d7061b18e755db0c29f853890086f06237a52820
Download: download sample
Signature CobaltStrike
Create hunting rule
File size:212'480 bytes
First seen:2020-10-24 21:21:15 UTC
Last seen:2020-10-25 08:06:36 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 199c3b2f92d728912bb206ea499d43f1 (179 x CobaltStrike)
ssdeep 3072:KlC60GeD6N9Za5Yp6zPC952DmKX0tDV2/jqBkLcP6j5Ub5n:KNxfaWUzPWEKKX0pURLcyjW
Threatray 102 similar samples on MalwareBazaar
TLSH CA249D9131C1C432D15A0474A64FC77E8FBDB8F415719887BFA80AA99E762E3D72A307
Reporter seifreed
Tags:CobaltStrike

Intelligence

File Origin
# of uploads :
2
# of downloads :
107
Origin country :
n/a
Vendor Threat Intelligence
Detection:
CobaltStrikeBeacon
Create hunting rule
Link:
https://www.capesandbox.com/analysis/75295/
Detection(s):
Win.Trojan.CobaltStrike-8091534-0
Create hunting rule

Win.Tool.CobaltStrike-6336852-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Result
Threat name:
CobaltStrike
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/508781
Signature
Antivirus / Scanner detection for submitted sample
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:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 303507 Sample: ofvONQ4g4Y Startdate: 24/10/2020 Architecture: WINDOWS Score: 76 12 Malicious sample detected (through community Yara rule) 2->12 14 Antivirus / Scanner detection for submitted sample 2->14 16 Multi AV Scanner detection for submitted file 2->16 18 2 other signatures 2->18 6 loaddll32.exe 1 2->6         started        process3 process4 8 rundll32.exe 6->8         started        10 rundll32.exe 6->10         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1928e9c98f5e26755861ed67d7061b18e755db0c29f853890086f06237a52820/
Threat name:
Win32.PUA.CobaltStrikeBeacon
Create hunting rule
Status:
Malicious
First seen:
2020-10-23 10:50:26 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  1/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=deuotsmplythkwdb5vt5obq3ddtvlwymfh4fhciaq3ygen5ffaqa._file
Verdict:
malicious
Label(s):
cobaltstrike
Create hunting rule
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0bcb3e0d5496e7211313a35799aa38d4b571d316014ebd2242ca8d556f9d32a3
CobaltStrike
196320968528e108ef517668d879d308e2425e0f2abafc554cb6639bc38c23fb
CobaltStrike
39dca3fbd2f4684b95c0e46c833dcf6d95a0d7b53ede8e5a0a62a1d04bc37e0b
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4b459c85c8425e368325d8844148e6a058d350374eb721a3da26c4e85ba26973
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8a148932d87847341a5cc3e93ba144ea1332229a4334a951449b7458169533bc
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8c195ec63793d4d4927cb5e06cd2c5771cedab32baecd2097454e3709e2748cc
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a3b71dfc0235bd33cd7d9d05db130acc2d4d4852522279aab9ceb5ea9f3d0ca9
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ba0f8dbc98176e58b11bded685e165885c3131c17ce1a8361846fd1a88f69c65
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d6ad7fadcb2167a24e36bb0f9e668c95183c3c224bef5775bc06c5bc71b02616
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f0bcf90c8a887b662d9413e62ff453dea774e520df15a6651eacad17eda434ac
CobaltStrike
+ 92 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
n/a
Link:
https://tria.ge/reports/201024-5l343g6bqn/
Behaviour
Suspicious use of WriteProcessMemory
Malware Config
C2 Extraction:
http://47.94.136.27:23333/push
Unpacked files
SH256 hash:
1928e9c98f5e26755861ed67d7061b18e755db0c29f853890086f06237a52820
MD5 hash:
b9280b89ba7760449eadd05983a32217
SHA1 hash:
245613db8927c03e0138fbdd55199597446a8684
Detections:
win_cobalt_strike_auto
Create hunting rule
Link:
https://www.unpac.me/results/183a97ef-17ed-443d-83c7-bcbcc668a367/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Carbanak
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/1928e9c98f5e26755861ed67d7061b18e755db0c29f853890086f06237a52820

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:APT_CobaltStrike_Beacon_Indicator
Create hunting rule
Author:JPCERT
Description:Detects CobaltStrike beacons
Reference:https://github.com/JPCERTCC/aa-tools/blob/master/cobaltstrikescan.py
Rule name:Beacon_K5om
Create hunting rule
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
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect CobaltStrike Beacon in memory
Reference:https://blogs.jpcert.or.jp/en/2018/08/volatility-plugin-for-detecting-cobalt-strike-beacon.html
Rule name:CobaltStrike_C2_Encoded_Config_Indicator
Create hunting rule
Author:yara@s3c.za.net
Description:Detects CobaltStrike C2 encoded profile configuration
Rule name:CobaltStrike_Sleep_Decoder_Indicator
Create hunting rule
Author:yara@s3c.za.net
Description:Detects CobaltStrike sleep_mask decoder
Rule name:CobaltStrike_Unmodifed_Beacon
Create hunting rule
Author:yara@s3c.za.net
Description:Detects unmodified CobaltStrike beacon DLL
Rule name:crime_win32_csbeacon_1
Create hunting rule
Author:@VK_Intel
Description:Detects Cobalt Strike loader
Reference:https://twitter.com/VK_Intel/status/1239632822358474753
Rule name:HKTL_Meterpreter_inMemory
Create hunting rule
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
Create hunting rule
Author:Florian Roth
Description:Detects Cobalt Strike sample from Leviathan report
Reference:https://goo.gl/MZ7dRg
Rule name:Malware_QA_vqgk
Create hunting rule
Author:Florian Roth
Description:VT Research QA uploaded malware - file vqgk.dll
Reference:VT Research QA
Rule name:MALW_cobaltrike
Create hunting rule
Author:Marc Rivero | McAfee ATR Team
Description:Rule to detect CobaltStrike beacon
Rule name:PowerShell_Susp_Parameter_Combo
Create hunting rule
Author:Florian Roth
Description:Detects PowerShell invocation with suspicious parameters
Reference:https://goo.gl/uAic1X
Rule name:ReflectiveLoader
Create hunting rule
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
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:WiltedTulip_ReflectiveLoader
Create hunting rule
Author:Florian Roth
Description:Detects reflective loader (Cobalt Strike) used in Operation Wilted Tulip
Reference:http://www.clearskysec.com/tulip
Rule name:win_cobalt_strike_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

The table below shows additional information about this malware sample such as delivery method and external references.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/75295/

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