MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7af1ac95d468a1b0d9dfb2dbe0dba8b3aca9a09e2620a0ec35dc087f829f9401. 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



MarsStealer


Vendor detections: 16


Intelligence 16 IOCs YARA 1 File information Comments

SHA256 hash: 7af1ac95d468a1b0d9dfb2dbe0dba8b3aca9a09e2620a0ec35dc087f829f9401
SHA3-384 hash: 6ca4c86da1898d6852744275370e79bd0e8d45448c69d191120fd19905086830dfc135a288a6ef50353c1cad86ca422c
SHA1 hash: bf83c19106c0226d8e3e08fbbd5633ce96472bf0
MD5 hash: 1777e41c01138cfcd1b8e4b6082ae3b1
humanhash: carbon-freddie-kilo-black
File name:file
Download: download sample
Signature MarsStealer
File size:1'823'232 bytes
First seen:2024-09-05 20:33:13 UTC
Last seen:2024-09-05 20:46:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 2eabe9054cad5152567f0699947a2c5b (2'852 x LummaStealer, 1'312 x Stealc, 1'026 x Healer)
ssdeep 49152:V7W9uuFKbA8/VUtFlVMFCZVjyizEDOztVefhGMxSSY:TiKbd9UBVMy2izYO8
TLSH T12E8533805DB40D8BC06F953743E35B4B56780E9823B9C718EEB89AFA9D37D5922C08DD
TrID 27.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
20.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
18.6% (.EXE) Win32 Executable (generic) (4504/4/1)
8.5% (.ICL) Windows Icons Library (generic) (2059/9)
8.3% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter Bitsight
Tags:exe MarsStealer


Avatar
Bitsight
url: http://31.41.244.11/steam/random.exe

Intelligence


File Origin
# of uploads :
3
# of downloads :
370
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-09-05 21:03:07 UTC
Tags:
stealer stealc loader themida

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Tags:
Infostealer Network Stealth
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Searching for analyzing tools
Searching for the window
Running batch commands
Creating a process with a hidden window
Launching a process
Connection attempt to an infection source
Sending an HTTP GET request to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-vm microsoft_visual_cc packed
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.
Result
Threat name:
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
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after checking locale)
Found malware configuration
Hides threads from debuggers
Machine Learning detection for sample
PE file contains section with special chars
Searches for specific processes (likely to inject)
Suricata IDS alerts for network traffic
Tries to detect process monitoring tools (Task Manager, Process Explorer etc.)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Tries to detect virtualization through RDTSC time measurements
Tries to evade debugger and weak emulator (self modifying code)
Yara detected Powershell download and execute
Yara detected Stealc
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Generic
Status:
Malicious
First seen:
2024-09-05 20:34:05 UTC
File Type:
PE (Exe)
AV detection:
17 of 24 (70.83%)
Threat level:
  2/5
Verdict:
unknown
Result
Malware family:
Score:
  10/10
Tags:
family:stealc botnet:leva discovery evasion stealer
Behaviour
Suspicious behavior: EnumeratesProcesses
System Location Discovery: System Language Discovery
Suspicious use of NtSetInformationThreadHideFromDebugger
Checks BIOS information in registry
Identifies Wine through registry keys
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Stealc
Malware Config
C2 Extraction:
http://185.215.113.100
Unpacked files
SH256 hash:
4720b3593dd7569f7c6595af9bdab21222e2e4c6ba9c48d05ed0249992ada881
MD5 hash:
146a3b5ee2359196e37addba71bc32f9
SHA1 hash:
4d2660a208d3886c2e29ad8dcc0b60f6ad52830b
Detections:
stealc win_stealc_w0 win_stealc_a0
SH256 hash:
7af1ac95d468a1b0d9dfb2dbe0dba8b3aca9a09e2620a0ec35dc087f829f9401
MD5 hash:
1777e41c01138cfcd1b8e4b6082ae3b1
SHA1 hash:
bf83c19106c0226d8e3e08fbbd5633ce96472bf0
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:vmdetect
Author:nex
Description:Possibly employs anti-virtualization techniques

File information


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

Web download

MarsStealer

Executable exe 7af1ac95d468a1b0d9dfb2dbe0dba8b3aca9a09e2620a0ec35dc087f829f9401

(this sample)

  
Dropped by
Amadey
  
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
CHECK_NXMissing Non-Executable Memory Protectioncritical

Comments