MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 86beafb8bad31a5d1eebe2a5cda045f9e72f71d848b6e1f53920d9ee93cdcd59. 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: 15


Intelligence 15 IOCs YARA 22 File information Comments

SHA256 hash: 86beafb8bad31a5d1eebe2a5cda045f9e72f71d848b6e1f53920d9ee93cdcd59
SHA3-384 hash: 585e5ca6a5137725a021e331f340cbd9f1ebd9e98a1124289c97abbf9a54bd10bc8ae84df345551c4842ba7678f19590
SHA1 hash: 4ac765dca0986b7497b5a180f0f88a65b148c04b
MD5 hash: 9757937c48eee909024d8ccde820a3cf
humanhash: alabama-india-minnesota-two
File name:python.exe
Download: download sample
Signature CobaltStrike
File size:326'656 bytes
First seen:2024-06-22 15:20:01 UTC
Last seen:2024-06-22 16:25:02 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ac484e4cff4204ee5b924bf9beada846 (1 x CobaltStrike)
ssdeep 6144:XczJDCdUGH1CckCKYjO6rfy6ax4O7GTadKdeSAOCTmATnmFnL:XYmdfdXKYjMxCaXSYfnmFnL
Threatray 464 similar samples on MalwareBazaar
TLSH T1E564F509EDB994B1E55138F2A22E5770863D5DA30A1E2F8B93C02D7DDBE03805D71F9A
TrID 32.2% (.EXE) Win64 Executable (generic) (10523/12/4)
20.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
13.7% (.EXE) Win32 Executable (generic) (4504/4/1)
6.2% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter mautshim
Tags:CobaltStrike exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
403
Origin country :
ID ID
Vendor Threat Intelligence
Malware family:
cobaltstrike
ID:
1
File name:
86beafb8bad31a5d1eebe2a5cda045f9e72f71d848b6e1f53920d9ee93cdcd59.exe
Verdict:
Malicious activity
Analysis date:
2024-06-22 15:21:13 UTC
Tags:
cobaltstrike backdoor

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

Behaviour
Connection attempt
Sending an HTTP GET request
Verdict:
No Threat
Threat level:
  10/10
Confidence:
100%
Tags:
epmicrosoft_visual_cc fingerprint microsoft_visual_cc
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:
Cobalt Strike
Verdict:
Malicious
Result
Threat name:
CobaltStrike, Metasploit
Detection:
malicious
Classification:
troj
Score:
100 / 100
Signature
AI detected suspicious sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Uses known network protocols on non-standard ports
Yara detected CobaltStrike
Yara detected CobaltStrike Stager
Yara detected Metasploit Payload
Behaviour
Behavior Graph:
Threat name:
Win32.Backdoor.CobaltStrikeBeacon
Status:
Malicious
First seen:
2024-06-22 15:21:05 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Behaviour
Program crash
Unpacked files
SH256 hash:
86beafb8bad31a5d1eebe2a5cda045f9e72f71d848b6e1f53920d9ee93cdcd59
MD5 hash:
9757937c48eee909024d8ccde820a3cf
SHA1 hash:
4ac765dca0986b7497b5a180f0f88a65b148c04b
Malware family:
CobaltStrike
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:CobaltStrikeBeacon
Author:ditekshen, enzo & Elastic
Description:Cobalt Strike Beacon Payload
Rule name:CobaltStrike_C2_Encoded_XOR_Config_Indicator
Author:yara@s3c.za.net
Description:Detects CobaltStrike C2 encoded profile configuration
Rule name:CobaltStrike_Resources_Xor_Bin_v2_x_to_v4_x
Author:gssincla@google.com
Description:Cobalt Strike's resource/xor.bin signature for version 2.x through 4.x
Reference:https://cloud.google.com/blog/products/identity-security/making-cobalt-strike-harder-for-threat-actors-to-abuse
Rule name:CobaltStrike_Sleeve_BeaconLoader_VA_x86_o_v4_3_v4_4_v4_5_and_v4_6
Author:gssincla@google.com
Description:Cobalt Strike's sleeve/BeaconLoader.VA.x86.o (VirtualAlloc) Versions 4.3 through at least 4.6
Reference:https://cloud.google.com/blog/products/identity-security/making-cobalt-strike-harder-for-threat-actors-to-abuse
Rule name:CobaltStrike__Resources_Xor_Bin_v2_x_to_v4_x
Author:gssincla@google.com
Rule name:CobaltStrike__Sleeve_BeaconLoader_VA_x86_o_v4_3_v4_4_v4_5_and_v4_6
Author:gssincla@google.com
Rule name:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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_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:maldoc_find_kernel32_base_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:meth_get_eip
Author:Willi Ballenthin
Rule name:meth_peb_parsing
Author:Willi Ballenthin
Rule name:meth_stackstrings
Author:Willi Ballenthin
Rule name:SUSP_XORed_Mozilla
Author:Florian Roth
Description:Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
Rule name:SUSP_XORed_Mozilla_RID2DB4
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:Trojan_Raw_Generic_4
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:Windows_Trojan_CobaltStrike_3dc22d14
Author:Elastic Security
Rule name:Windows_Trojan_CobaltStrike_f0b627fc
Author:Elastic Security
Description:Rule for beacon reflective loader
Rule name:Windows_Trojan_Metasploit_7bc0f998
Author:Elastic Security
Description:Identifies the API address lookup function leverage by metasploit shellcode
Rule name:Windows_Trojan_Metasploit_c9773203
Description:Identifies the 64 bit API hashing function used by Metasploit. This has been re-used by many other malware families.
Reference:https://github.com/rapid7/metasploit-framework/blob/04e8752b9b74cbaad7cb0ea6129c90e3172580a2/external/source/shellcode/windows/x64/src/block/block_api.asm

File information


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

Web download

CobaltStrike

Executable exe 86beafb8bad31a5d1eebe2a5cda045f9e72f71d848b6e1f53920d9ee93cdcd59

(this sample)

  
Delivery method
Distributed via web download

BLint


The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineA
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleOutputCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileW

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