MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 941b15291a312e2eeb3e25d4062099bf49e8b217321e3c4b9e67a88626827a3e. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments

SHA256 hash: 941b15291a312e2eeb3e25d4062099bf49e8b217321e3c4b9e67a88626827a3e
SHA3-384 hash: a237162dc18f682789b21e91346470d6e3ad0ab755d3298fa235a514c55c968aedb1720d638605ee93cb2b1c2e85b166
SHA1 hash: 127141c69d66a3e85909734c2f61485a0e2c23e0
MD5 hash: 137f241dc3d4c9290ac2ccd3258db313
humanhash: neptune-ceiling-hotel-earth
File name:941B15291A312E2EEB3E25D4062099BF49E8B217321E3C4B9E67A88626827A3E.exe
Download: download sample
Signature CobaltStrike
File size:87'560 bytes
First seen:2024-07-24 19:11:25 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 147442e63270e287ed57d33257638324 (144 x CobaltStrike, 21 x Cobalt Strike)
ssdeep 768:OMFV+Djc8DS7XWVtRkkW/+f71e32ZPonWtqG1TttO4BTFwePStI66AA:O00s2S7XWAnkPT1rFV66AA
TLSH T1D683EE2766F28ECEC10F84F338E39AB0DE9A6D72521D12697131BE90E9714E815C53F9
TrID 41.1% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
26.1% (.EXE) Win64 Executable (generic) (10523/12/4)
12.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.1% (.ICL) Windows Icons Library (generic) (2059/9)
5.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 92aca6aaaaa6acd0 (3 x AgentTesla, 2 x Formbook, 2 x RemcosRAT)
Reporter Anonymous
Tags:Cobalt Strike exe


Avatar
Anonymous
this malware sample is very nasty!

Intelligence


File Origin
# of uploads :
1
# of downloads :
315
Origin country :
CN CN
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.9%
Tags:
Encryption Infostealer Network Stealth Malware
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt to an infection source
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug cobalt cobaltstrike overlay
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.evad
Score:
100 / 100
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found API chain indicative of debugger detection
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Yara detected CobaltStrike
Yara detected Metasploit Payload
Behaviour
Behavior Graph:
Threat name:
Win64.Backdoor.CobaltStrike
Status:
Malicious
First seen:
2024-04-04 13:26:50 UTC
File Type:
PE+ (Exe)
Extracted files:
3
AV detection:
30 of 38 (78.95%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
cobaltstrike
Result
Malware family:
cobaltstrike
Score:
  10/10
Tags:
family:cobaltstrike backdoor trojan
Behaviour
Cobaltstrike
Malware Config
C2 Extraction:
http://120.27.142.96:80/uNFT
Unpacked files
SH256 hash:
941b15291a312e2eeb3e25d4062099bf49e8b217321e3c4b9e67a88626827a3e
MD5 hash:
137f241dc3d4c9290ac2ccd3258db313
SHA1 hash:
127141c69d66a3e85909734c2f61485a0e2c23e0
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:Windows_Trojan_CobaltStrike_7f8da98a
Author:Elastic Security
Rule name:win_cobaltstrike_pipe_strings_nov_2023
Author:Matthew @ Embee_Research
Description:Detects default strings related to cobalt strike named pipes

File information


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

Malspam

CobaltStrike

Executable exe 941b15291a312e2eeb3e25d4062099bf49e8b217321e3c4b9e67a88626827a3e

(this sample)

  
Delivery method
Distributed via e-mail attachment

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_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::GetStartupInfoA
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileA

Comments