MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 79851f3214de840ea9fb18ecb3b104bd2bcba48c63054fccc21040c967c923cb. 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: 15


Intelligence 15 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 79851f3214de840ea9fb18ecb3b104bd2bcba48c63054fccc21040c967c923cb
SHA3-384 hash: 1f78e453186fe2977a37e16ded8f3f97685c85b4f9bbdf800cdce06e36673e8228ebd4c68dd1b43a259af57b3df5bae4
SHA1 hash: 125d0fe68c44721b1071ed042dd74ef1851227f6
MD5 hash: 97b24b0bcaed15647aba4a536862d802
humanhash: monkey-butter-crazy-butter
File name:file
Download: download sample
Signature MarsStealer
Create hunting rule
File size:1'789'440 bytes
First seen:2024-09-21 14:36:03 UTC
Last seen:2024-09-21 16:29:53 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:ynRNSmErLA2ayZ5KEmVMKBhM7ZmE+VJ0EDnqz3on+:EHSmErLZL5OWmE+VJ0EDnk
TLSH T1418533AB4D1A77A2C6BE113F84B24F473A34352D0A40E537B77F92BC9A33A872452D15
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://185.215.113.100/steam/random.exe

Intelligence

File Origin
# of uploads :
4
# of downloads :
424
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-09-21 14:39:12 UTC
Tags:
stealer stealc
Link:
https://app.any.run/tasks/17444429-6023-4658-ba52-1d1228e17249

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.32279.32135.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66eed9d6f129e67ada9037ed
Tags:
Infostealer Network Stealth Crypt
Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Searching for analyzing tools
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Connection attempt to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
microsoft_visual_cc packed
Link:
https://www.filescan.io/uploads/66eed9d7d2758b8668bb18d1/reports/6bda5d20-d9f4-4c2b-b099-41a31e5273b7/overview
Verdict:
Malicious
Labled as:
Symmi.Generic
Link:
https://www.hybrid-analysis.com/sample/79851f3214de840ea9fb18ecb3b104bd2bcba48c63054fccc21040c967c923cb
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/dea4c392-47ee-4ad6-8c65-6dea7dffdbdf
Result
Threat name:
Stealc
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1515104
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:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/79851f3214de840ea9fb18ecb3b104bd2bcba48c63054fccc21040c967c923cb
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/79851f3214de840ea9fb18ecb3b104bd2bcba48c63054fccc21040c967c923cb/
Threat name:
Win32.Trojan.Stealerc
Create hunting rule
Status:
Malicious
First seen:
2024-09-21 14:37:07 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=pgcr6mqu32ca5kp3ddwlhmiexuv4xjemmmcu7tgccbamsz6jepfq._file
Verdict:
malicious
Label(s):
stealc
Create hunting rule
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc botnet:dear discovery evasion stealer
Link:
https://tria.ge/reports/240921-ryk55axbmc/
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://185.215.113.103
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/b6949e9d-9d65-40a0-8232-ac856576c84a
Unpacked files
SH256 hash:
bd72c241583561327c524117172da980a5644d525a296a3cb4c2468477456fa5
MD5 hash:
3147427329daf72b0d54c6c3b4039f2d
SHA1 hash:
ad1d979bfc05ae73c08180098a1a3968302ad179
Link:
https://www.unpac.me/results/707539e7-2882-4a04-98de-0fe2702ba0d5/
SH256 hash:
79851f3214de840ea9fb18ecb3b104bd2bcba48c63054fccc21040c967c923cb
MD5 hash:
97b24b0bcaed15647aba4a536862d802
SHA1 hash:
125d0fe68c44721b1071ed042dd74ef1851227f6
Link:
https://www.unpac.me/results/707539e7-2882-4a04-98de-0fe2702ba0d5/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/79851f3214de/report/overview.html
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/79851f3214de840ea9fb18ecb3b104bd2bcba48c63054fccc21040c967c923cb

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:Detect_Malicious_VBScript_Base64
Create hunting rule
Author:daniyyell
Description:Detects malicious VBScript patterns, including Base64 decoding, file operations, and PowerShell.

File information

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

Web download

MarsStealer

Executable exe 79851f3214de840ea9fb18ecb3b104bd2bcba48c63054fccc21040c967c923cb

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3184548/
  
URLhaus
https://urlhaus.abuse.ch/url/3171133/

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