MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f8a9fd919b0eec504ab84b7ec3a2950cb037abffe94960788a1b71816f865104. 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


Stealc


Vendor detections: 16


Intelligence 16 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f8a9fd919b0eec504ab84b7ec3a2950cb037abffe94960788a1b71816f865104
SHA3-384 hash: 169cd103f4657b2410b3618fd1f0638133163c1d016ab9ae21d97e06a1b742b84ed38de40f43e438772bae8b643436e5
SHA1 hash: 254015c63b7ef86f40ff422ec224c6f828db0cba
MD5 hash: 06ede772957f08e7c74dc1c34fc1a78d
humanhash: berlin-enemy-johnny-texas
File name:file
Download: download sample
Signature Stealc
Create hunting rule
File size:1'131'008 bytes
First seen:2024-07-17 07:55:05 UTC
Last seen:2024-07-24 23:13:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 001806c33a6e9fe5fbff34bdbd79b591 (112 x Stealc, 9 x MarsStealer, 1 x Amadey)
ssdeep 24576:JQDLj0ht0491D+31zdU4qs6oG2Xu11uoW:KwhWqSFB32oGxQ
TLSH T1733533604468D7F5D04FA7BF59B37BE473A6783C8923257583D2A4ABC7B283461CE058
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)
Reporter Bitsight
Tags:exe Stealc


Avatar
Bitsight
url: http://77.91.77.81/stealc/random.exe

Intelligence

File Origin
# of uploads :
15
# of downloads :
361
Origin country :
US US
Vendor Threat Intelligence
Detection(s):
Win.Malware.Predator-9794784-0
Create hunting rule

PUA.Win.Packer.EnigmaProtector-9852682-0
Create hunting rule

Verdict:
Malicious
Score:
95.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66977913da4062e29ae89e1a
Tags:
Infostealer Stealth
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
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:
enigma lolbin microsoft_visual_cc obfuscated packed packed shell32
Link:
https://www.filescan.io/uploads/66977915f1068d66afbe8c83/reports/641e1ced-2a3f-46d0-9c64-3e8d2acece01/overview
Verdict:
Malicious
Labled as:
Fragtor.Generic
Link:
https://www.hybrid-analysis.com/sample/f8a9fd919b0eec504ab84b7ec3a2950cb037abffe94960788a1b71816f865104
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:
Spark
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d3da399d-a0aa-4dab-a563-33141f428c0d
Result
Threat name:
Mars Stealer, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1474727
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 malware configuration
Hides threads from debuggers
Machine Learning detection for sample
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
PE file has nameless sections
Sample uses string decryption to hide its real strings
Snort IDS alert for network traffic
Yara detected Mars stealer
Yara detected Powershell download and execute
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f8a9fd919b0eec504ab84b7ec3a2950cb037abffe94960788a1b71816f865104
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f8a9fd919b0eec504ab84b7ec3a2950cb037abffe94960788a1b71816f865104/
Threat name:
Win32.Trojan.Stealc
Create hunting rule
Status:
Malicious
First seen:
2024-07-17 07:56:05 UTC
File Type:
PE (Exe)
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7cu73em3b3wfasvyjn7mhiuvbsydpk775fewa6ekdnyyc34gkeca._file
Verdict:
malicious
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:amadey family:stealc botnet:4dd39d botnet:funny discovery evasion spyware stealer trojan
Link:
https://tria.ge/reports/240717-jsn1tsvckc/
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Drops file in Windows directory
AutoIT Executable
Suspicious use of NtSetInformationThreadHideFromDebugger
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks BIOS information in registry
Checks computer location settings
Deletes itself
Executes dropped EXE
Identifies Wine through registry keys
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Downloads MZ/PE file
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Amadey
Stealc
Malware Config
C2 Extraction:
http://85.28.47.30
http://77.91.77.82
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/b594068d-c005-4c88-a63d-e4d0560ddaad
Unpacked files
SH256 hash:
f8a9fd919b0eec504ab84b7ec3a2950cb037abffe94960788a1b71816f865104
MD5 hash:
06ede772957f08e7c74dc1c34fc1a78d
SHA1 hash:
254015c63b7ef86f40ff422ec224c6f828db0cba
Detections:
SUSP_XORed_URL_In_EXE
Create hunting rule
Link:
https://www.unpac.me/results/aa2fe428-3d6b-4213-b404-8b9657916379/
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/f8a9fd919b0eec504ab84b7ec3a2950cb037abffe94960788a1b71816f865104

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:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:SUSP_XORed_URL_In_EXE
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:SUSP_XORed_URL_in_EXE_RID2E46
Create hunting rule
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834

File information

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

Web download

Stealc

Executable exe f8a9fd919b0eec504ab84b7ec3a2950cb037abffe94960788a1b71816f865104

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2909131/
  
URLhaus
https://urlhaus.abuse.ch/url/3047216/
  
URLhaus
https://urlhaus.abuse.ch/url/2909129/
  
URLhaus
https://urlhaus.abuse.ch/url/3047209/
  
URLhaus
https://urlhaus.abuse.ch/url/3047215/
  
URLhaus
https://urlhaus.abuse.ch/url/2908698/

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
Reviews
IDCapabilitiesEvidence
SHELL_APIManipulates System Shellshell32.dll::ShellExecuteA
WIN_BASE_APIUses Win Base APIkernel32.dll::LoadLibraryA
WIN_BASE_IO_APICan Create Filesversion.dll::GetFileVersionInfoA

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