MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9c4dca830487bda060624059ffc910041ce76975a00750092fcfbb0ba99512ce. 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 9 File information Comments
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SHA256 hash: 9c4dca830487bda060624059ffc910041ce76975a00750092fcfbb0ba99512ce
SHA3-384 hash: c234287febc85e0ab70462faaf3beeed85ab3a900f6e7423e44f9649120608993e95c7959dd1746c3001fecb499fcb86
SHA1 hash: befa619180442f1a3b968f232d68a18d6ad58251
MD5 hash: a2d6bc4c76921e184d0a81e79c40ede1
humanhash: apart-echo-bluebird-pizza
File name:file
Download: download sample
Signature MarsStealer
Create hunting rule
File size:274'984 bytes
First seen:2024-08-30 16:11:25 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 6144:Nm9eZof7jnUYN9mzfYJxM03MKJmuK9zrSaANpJe+PCnEO:Nm9IK77B9mz7KJhK9fSjJdPYEO
TLSH T11944E14A36988362C56405B9D4F3986513F6B6C73B73DA963A888DDA0F027C8CD49F8D
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/66d1eb58f2491_stealc_cry.exe#kiscrypto

Intelligence

File Origin
# of uploads :
1
# of downloads :
389
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-08-30 16:14:20 UTC
Tags:
stealer stealc loader
Link:
https://app.any.run/tasks/d6a1cc7e-ed95-46eb-96f1-026e8cae3efc

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.MSIL.Crypt.6404.30962.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
70%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66d1ef55dfc43757103967e6
Tags:
Encryption Static
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Connection attempt to an infection source
Unauthorized injection to a system process
Sending an HTTP GET request to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
net_reactor overlay packed packed
Link:
https://www.filescan.io/uploads/66d1ef55f2069f76774c9f4d/reports/6803682e-12dd-43e3-a633-1bd6d8db61c4/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/9c4dca830487bda060624059ffc910041ce76975a00750092fcfbb0ba99512ce
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/8abe2ed5-5470-417a-aeb5-c98a0075835c
Result
Threat name:
Clipboard Hijacker, PureLog Stealer, Ste
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1501904
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains very large array initializations
AI detected suspicious sample
Allocates memory in foreign processes
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Detected unpacking (changes PE section rights)
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
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Searches for specific processes (likely to inject)
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
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
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected Clipboard Hijacker
Yara detected Powershell download and execute
Yara detected PureLog Stealer
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1501904 Sample: file.exe Startdate: 30/08/2024 Architecture: WINDOWS Score: 100 56 aldiablo.cl 2->56 58 Suricata IDS alerts for network traffic 2->58 60 Found malware configuration 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 13 other signatures 2->64 11 file.exe 2 2->11         started        15 oobeldr.exe 2->15         started        signatures3 process4 file5 48 C:\Users\user\AppData\Local\...\file.exe.log, ASCII 11->48 dropped 74 Found many strings related to Crypto-Wallets (likely being stolen) 11->74 76 Contains functionality to inject code into remote processes 11->76 78 Writes to foreign memory regions 11->78 88 2 other signatures 11->88 17 RegAsm.exe 36 11->17         started        22 conhost.exe 11->22         started        80 Antivirus detection for dropped file 15->80 82 Multi AV Scanner detection for dropped file 15->82 84 Detected unpacking (changes PE section rights) 15->84 86 Switches to a custom stack to bypass stack traces 15->86 24 schtasks.exe 1 15->24         started        signatures6 process7 dnsIp8 52 193.176.190.41, 49733, 49742, 80 AGROSVITUA unknown 17->52 54 aldiablo.cl 186.64.114.115, 443, 49734 ZAMLTDACL Chile 17->54 40 C:\Users\user\AppData\...\softokn3[1].dll, PE32 17->40 dropped 42 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 17->42 dropped 44 C:\Users\user\AppData\...\mozglue[1].dll, PE32 17->44 dropped 46 11 other files (7 malicious) 17->46 dropped 66 Found many strings related to Crypto-Wallets (likely being stolen) 17->66 68 Tries to harvest and steal ftp login credentials 17->68 70 Tries to harvest and steal browser information (history, passwords, etc) 17->70 72 4 other signatures 17->72 26 cmd.exe 1 17->26         started        28 conhost.exe 24->28         started        file9 signatures10 process11 process12 30 HJJDGHCBGD.exe 1 26->30         started        34 conhost.exe 26->34         started        file13 50 C:\Users\user\AppData\Roaming\...\oobeldr.exe, MS-DOS 30->50 dropped 90 Antivirus detection for dropped file 30->90 92 Multi AV Scanner detection for dropped file 30->92 94 Detected unpacking (changes PE section rights) 30->94 96 2 other signatures 30->96 36 schtasks.exe 1 30->36         started        signatures14 process15 process16 38 conhost.exe 36->38         started       
Score:
87%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/9c4dca830487bda060624059ffc910041ce76975a00750092fcfbb0ba99512ce
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/9c4dca830487bda060624059ffc910041ce76975a00750092fcfbb0ba99512ce/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2024-08-30 16:12:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=trg4vayeq662aydcibm77siqaqooo2lvuadvacjpz65qxkmvclha._file
Verdict:
malicious
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc botnet:cry credential_access discovery spyware stealer
Link:
https://tria.ge/reports/240830-tng2tssgph/
Behaviour
Checks processor information in registry
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
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
Executes dropped EXE
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/8e3532d7-0a28-41bb-b6f7-220502f581d3
Unpacked files
SH256 hash:
9b86d8c73fa219bef3689dd13e7ab7996cf4007a5c72ea988de8690fb7b9ea48
MD5 hash:
175e665a8d0021510549eb8557b01bbf
SHA1 hash:
71f011c065cb77d77c3f671a25b24b044e2ba969
Detections:
stealc
Create hunting rule
Link:
https://www.unpac.me/results/b7fe3994-b3f6-410d-84c8-4f9d69e62a86/
Parent samples :
9f4a43a1e05196eb4cfa7b9aa2cc09e9fbdcc0047cada2cb9f30d63d9386a686
b3e2fe43f3024cc479415e745cd9826752debe4e8b208e5e5b7cc510723b787d
c308013d90d5f773466b86052267ddcb476c9a99acc5e639fa5b20e5dda85e41
a51f55434ef4466043357f63161a7e4a91194b7a8bcb53d7d6074135446f29ce
9c4dca830487bda060624059ffc910041ce76975a00750092fcfbb0ba99512ce
677074e2c7852d99ae47bcc355c3d77c3afa0391f9393012c3b1ef24957beacb
SH256 hash:
9c4dca830487bda060624059ffc910041ce76975a00750092fcfbb0ba99512ce
MD5 hash:
a2d6bc4c76921e184d0a81e79c40ede1
SHA1 hash:
befa619180442f1a3b968f232d68a18d6ad58251
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/b7fe3994-b3f6-410d-84c8-4f9d69e62a86/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/9c4dca830487/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/9c4dca830487bda060624059ffc910041ce76975a00750092fcfbb0ba99512ce

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:DotNet_Reactor
Create hunting rule
Author:@bartblaze
Description:Identifies .NET Reactor, which offers .NET code protection such as obfuscation, encryption and so on.
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
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:PureCrypter
Create hunting rule
Author:@bartblaze
Description:Identifies PureCrypter, .NET loader and obfuscator.
Reference:https://malpedia.caad.fkie.fraunhofer.de/details/win.purecrypter
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 9c4dca830487bda060624059ffc910041ce76975a00750092fcfbb0ba99512ce

(this sample)

  
Dropped by
Privateloader
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3135853/

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

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