MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b264a2e3d5d065e2b8542a1e2d4a109c75347419b71b2232d6f71e473a0999fa. 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: 18


Intelligence 18 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b264a2e3d5d065e2b8542a1e2d4a109c75347419b71b2232d6f71e473a0999fa
SHA3-384 hash: f10c8c7aa2a9d5b645bfc9cc945150d7b698425c7903bd9d8c7248f0f1e4b385811c5273c3a0cd639b64803b99af9cec
SHA1 hash: 0d1961737b82e66d565896e66b030b1b24270952
MD5 hash: 278dcb42c883b71ac7e02501936b9e8f
humanhash: beryllium-diet-mockingbird-cola
File name:file
Download: download sample
Signature MarsStealer
Create hunting rule
File size:222'624 bytes
First seen:2024-08-22 18:51:04 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 3072:rs2T9R44dx4NTTIGj8psI/nYeXf7di3N+zryQR77BYjzsetueq1KrnPkK5nGGXrr:rs2T8r/5Qp5TXf7cd+CySjzrfL4EEO
TLSH T1F62412D246650F54FFAA89B02490CA29FF31E3767DE542DB181387A06B43F9139593BC
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter Bitsight
Tags:exe MarsStealer


Avatar
Bitsight
url: http://147.45.44.104/yuop/66c74bdca27c5_stealc_default.exe#kisotr

Intelligence

File Origin
# of uploads :
1
# of downloads :
406
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-08-22 18:53:27 UTC
Tags:
stealer stealc loader raccoonclipper
Link:
https://app.any.run/tasks/c8a3f13a-9c49-45b4-9d29-3802ea930518

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Stealerc-10034897-0
Create hunting rule

Win.Packed.Stealerc-10034910-0
Create hunting rule

Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66c788d4b2a4681a72967db9
Tags:
Encryption Static Stealc
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Creating a file
Сreating synchronization primitives
Connection attempt
Sending an HTTP GET request
Running batch commands
Creating a process with a hidden window
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed stealc
Link:
https://www.filescan.io/uploads/66c788d66575775f0489c769/reports/5d9dc535-c359-467a-af8c-7aa821c8186c/overview
Verdict:
Malicious
Labled as:
MSILHeracles.Generic
Link:
https://www.hybrid-analysis.com/sample/b264a2e3d5d065e2b8542a1e2d4a109c75347419b71b2232d6f71e473a0999fa
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:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/de92fafc-8dc2-439f-9a19-4b887d7bf27d
Result
Threat name:
Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1497653
Signature
.NET source code contains very large array initializations
AI detected suspicious sample
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Found evasive API chain (may stop execution after checking locale)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Searches for specific processes (likely to inject)
Suricata IDS alerts for network traffic
Tries to harvest and steal Bitcoin Wallet information
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Crypto Currency Wallets
Writes to foreign memory regions
Yara detected Powershell download and execute
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1497653 Sample: file.exe Startdate: 22/08/2024 Architecture: WINDOWS Score: 100 34 aldiablo.cl 2->34 40 Suricata IDS alerts for network traffic 2->40 42 Found malware configuration 2->42 44 Antivirus detection for URL or domain 2->44 46 8 other signatures 2->46 9 file.exe 2 2->9         started        signatures3 process4 file5 24 C:\Users\user\AppData\Local\...\file.exe.log, ASCII 9->24 dropped 48 Contains functionality to inject code into remote processes 9->48 50 Writes to foreign memory regions 9->50 52 Allocates memory in foreign processes 9->52 54 Injects a PE file into a foreign processes 9->54 13 RegAsm.exe 35 9->13         started        18 conhost.exe 9->18         started        signatures6 process7 dnsIp8 36 193.176.190.41, 49733, 49741, 80 AGROSVITUA unknown 13->36 38 aldiablo.cl 186.64.114.115, 443, 49734 ZAMLTDACL Chile 13->38 26 C:\Users\user\AppData\...\vcruntime140[1].dll, PE32 13->26 dropped 28 C:\Users\user\AppData\...\softokn3[1].dll, PE32 13->28 dropped 30 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 13->30 dropped 32 9 other files (none is malicious) 13->32 dropped 56 Found many strings related to Crypto-Wallets (likely being stolen) 13->56 58 Tries to harvest and steal ftp login credentials 13->58 60 Tries to harvest and steal browser information (history, passwords, etc) 13->60 62 4 other signatures 13->62 20 cmd.exe 2 13->20         started        file9 signatures10 process11 process12 22 conhost.exe 20->22         started       
Score:
51%
Verdict:
Susipicious
File Type:
PE
Link:
https://malprob.io/report/b264a2e3d5d065e2b8542a1e2d4a109c75347419b71b2232d6f71e473a0999fa
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b264a2e3d5d065e2b8542a1e2d4a109c75347419b71b2232d6f71e473a0999fa/
Threat name:
ByteCode-MSIL.Trojan.LummaStealer
Create hunting rule
Status:
Malicious
First seen:
2024-08-22 16:54:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
18 of 38 (47.37%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wjskfy6v2bs6focufipc2sqqtr2ti5azw4nsemww64peooqjth5a._file
Verdict:
malicious
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc botnet:default credential_access discovery spyware stealer
Link:
https://tria.ge/reports/240822-xh2qtsvdrr/
Behaviour
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks computer location settings
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Unsecured Credentials: Credentials In Files
Downloads MZ/PE file
Credentials from Password Stores: Credentials from Web Browsers
Stealc
Malware Config
C2 Extraction:
http://193.176.190.41
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/51dda5a2-e403-49e6-8566-afae45182136
Unpacked files
SH256 hash:
c51d851e9737fe32fa95047afcfb030a6c006865536bd4894d5ea5d3b0aadbb8
MD5 hash:
b54977dc8d3e5df6dba2211efe221296
SHA1 hash:
1ecccf5e70971d7e26952e8a1f0d0483518f40ad
Detections:
stealc
Create hunting rule
Link:
https://www.unpac.me/results/5718a0f3-c8fb-4012-ace5-1cd34cb23b3a/
Parent samples :
12ba4ba5d28771a0ffdfc88f9542718b9d67caddfeedb68ddac6688e8cefd76e
21381b405bbb2d1ac38f1d908e0dc8a399fb2401d2ed1c1a300a2144626f9add
b264a2e3d5d065e2b8542a1e2d4a109c75347419b71b2232d6f71e473a0999fa
dbf55dd5c00f37ec49e1b661228adcc0a286b3eabb35d2f85fc34d82076107f6
c7a39c464c5d25f0aa5cf1281d476269397122ee1fdf44ca7d3283080aa69ab3
SH256 hash:
b264a2e3d5d065e2b8542a1e2d4a109c75347419b71b2232d6f71e473a0999fa
MD5 hash:
278dcb42c883b71ac7e02501936b9e8f
SHA1 hash:
0d1961737b82e66d565896e66b030b1b24270952
Link:
https://www.unpac.me/results/5718a0f3-c8fb-4012-ace5-1cd34cb23b3a/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b264a2e3d5d0/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/b264a2e3d5d065e2b8542a1e2d4a109c75347419b71b2232d6f71e473a0999fa

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:NET
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

MarsStealer

Executable exe b264a2e3d5d065e2b8542a1e2d4a109c75347419b71b2232d6f71e473a0999fa

(this sample)

  
Dropped by
Privateloader
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3122984/

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 (GUARD_CF)high

Comments