MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a95037039a9920384aa6b478ca54c7d839c72b203c5331a7ffbd9e0f9731c3dc. 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 20 File information Comments
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SHA256 hash: a95037039a9920384aa6b478ca54c7d839c72b203c5331a7ffbd9e0f9731c3dc
SHA3-384 hash: 2a5903c3395ffcb9584dd100ddc970901bbf66566e7191c16062211381afd1036c5834a747bb0b7283d841a25a3392ef
SHA1 hash: a85f99bf9fd281e85959dd98c6ebfbe0066b4eb5
MD5 hash: 8cde3e5031f19555aea0c8fffcc3c4c2
humanhash: summer-october-aspen-jig
File name:a95037039a9920384aa6b478ca54c7d839c72b203c5331a7ffbd9e0f9731c3dc(1)
Download: download sample
Signature CobaltStrike
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File size:227'080 bytes
First seen:2021-08-02 10:35:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 9f4693fc0c511135129493f2161d1e86 (253 x Neshta, 15 x Formbook, 14 x AgentTesla)
ssdeep 3072:sr85CdUYGtIZz+8oCRMy6Fa3fpEifN+r4DWSmDrIC2ox5u:k9dGOUnag0WSMrA
Threatray 613 similar samples on MalwareBazaar
TLSH T1CF24AEAFF3868E3BC1580D7984A19AA1A334FD742A1ED76B78D17BD90C393C62B04543
dhash icon d11120081511864c (1 x Neshta, 1 x CobaltStrike)
Reporter JAMESWT_WT
Tags:CobaltStrike exe ReplicationOperationInformation

Intelligence

File Origin
# of uploads :
1
# of downloads :
662
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
0e74bf09f32b2020d72de239ced4291970375366b26e0156bfdfc4eafa358349
Verdict:
Malicious activity
Analysis date:
2021-08-02 10:26:44 UTC
Tags:
loader
Link:
https://app.any.run/tasks/851d84f3-2064-4a1a-81f6-0c5666cf7193

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
neshta
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Link:
https://www.capesandbox.com/analysis/175776/
Detection(s):
Win.Trojan.Neshuta-1
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PUA.Win.Packer.Pequake-4
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Win.Virus.Neshta-7101689-0
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Win.Trojan.Jadtre-5
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Result
Verdict:
Malware
Maliciousness:
Result
Verdict:
MALICIOUS
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:
Neshta
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9c764b23-9447-4223-8ccb-06b3ab103fe7
Result
Threat name:
CobaltStrike Metasploit Neshta
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Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/825456
Signature
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to detect sleep reduction / modifications
Creates an undocumented autostart registry key
Drops executable to a common third party application directory
Drops PE files with a suspicious file extension
Found malware configuration
Infects executable files (exe, dll, sys, html)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Yara detected CobaltStrike
Yara detected Metasploit Payload
Yara detected Neshta
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a95037039a9920384aa6b478ca54c7d839c72b203c5331a7ffbd9e0f9731c3dc/
Threat name:
Win32.Virus.Neshta
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Status:
Malicious
First seen:
2021-07-30 06:23:00 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
45 of 46 (97.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vfidoa42teqdqsvgwr4muvgh3a44okzahrjtdj77xwpa7fzrypoa._file
Verdict:
malicious
Label(s):
cobaltstrike
Create hunting rule
Similar samples:
0e74bf09f32b2020d72de239ced4291970375366b26e0156bfdfc4eafa358349
CobaltStrike
17255c61dca3b8f58f9d1e34f562714c0b0b5b1b0925401a501b1ee9c9376d66
CobaltStrike
216c8471db4ab3a785f395c8c059d767798a6ffd5fbbf6e72f745ea506bd1cd9
CobaltStrike
5701a3c3a5ba47dfdf1fa7b70335419c2889b6649d30964145f68815920f7616
CobaltStrike
5aedcd88018ef8f4a70a04ca259e7f2a087fde8ef98c7bbe21b1d511dd00a731
CobaltStrike
95c7ff271eef622e799e62be523d4df8d11a6c97ac662ed2a6850f3b1b3f8220
CobaltStrike
a3499e847373725d2924a5914b9ac861fda3c53b31ca5cfcaa02b9363f205774
CobaltStrike
+ 603 additional samples on MalwareBazaar
Result
Malware family:
metasploit
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Score:
  10/10
Tags:
family:cobaltstrike family:metasploit botnet:0 backdoor persistence spyware stealer trojan
Link:
https://tria.ge/reports/210802-rjxjpfnpnn/
Behaviour
Modifies registry class
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of SetThreadContext
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Cobaltstrike
MetaSploit
Modifies system executable filetype association
Malware Config
C2 Extraction:
http://45.140.17.75:10443/UIHv
http://45.140.17.75:10443/visit.js
Unpacked files
SH256 hash:
a95037039a9920384aa6b478ca54c7d839c72b203c5331a7ffbd9e0f9731c3dc
MD5 hash:
8cde3e5031f19555aea0c8fffcc3c4c2
SHA1 hash:
a85f99bf9fd281e85959dd98c6ebfbe0066b4eb5
Detections:
win_neshta_auto
Create hunting rule
Link:
https://www.unpac.me/results/ae3c1673-bc40-4b7b-bfb4-7f3298e10488/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a95037039a9920384aa6b478ca54c7d839c72b203c5331a7ffbd9e0f9731c3dc

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
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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
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Author:enzo
Description:Cobalt Strike Beacon Payload
Rule name:CobaltStrike_Unmodifed_Beacon
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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:CS_beacon
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Author:Etienne Maynier tek@randhome.io
Rule name:HKTL_CobaltStrike_Beacon_4_2_Decrypt
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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
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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
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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
Create hunting rule
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_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:INDICATOR_SUSPICIOUS_ReflectiveLoader
Create hunting rule
Author:ditekSHen
Description:detects Reflective DLL injection artifacts
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
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Author:Florian Roth
Description:VT Research QA uploaded malware - file vqgk.dll
Reference:VT Research QA
Rule name:MALWARE_Win_CobaltStrike
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Author:ditekSHen
Description:CobaltStrike payload
Rule name:MAL_Neshta_Generic
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Author:Florian Roth
Description:Detects Neshta malware
Reference:Internal Research
Rule name:PowerShell_Susp_Parameter_Combo
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Author:Florian Roth
Description:Detects PowerShell invocation with suspicious parameters
Reference:https://goo.gl/uAic1X
Rule name:ReflectiveLoader
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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:Trojan_Raw_Generic_4
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Author:FireEye
Reference:https://www.fireeye.com/blog/products-and-services/2020/12/fireeye-shares-details-of-recent-cyber-attack-actions-to-protect-community.html
Rule name:WiltedTulip_ReflectiveLoader
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Author:Florian Roth
Description:Detects reflective loader (Cobalt Strike) used in Operation Wilted Tulip
Reference:http://www.clearskysec.com/tulip
Rule name:win_neshta_auto
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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.

Cape
Cape
https://www.capesandbox.com/analysis/175776/

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