MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3f6d03c926c86f43ea6273d84b12a6e47e63e740687834ec62d6ca36d361f373. 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: 3f6d03c926c86f43ea6273d84b12a6e47e63e740687834ec62d6ca36d361f373
SHA3-384 hash: 13643aaf280fa650144b4c381d8028e4d0b8b9a86821b4936fb37234d1242dca5f662cf4fb694d63482ba55f8a14093a
SHA1 hash: 17d8492a607030052a53861839ab826ff7f7b817
MD5 hash: c4f0555a4b63a012433513bb97fb8a3a
humanhash: harry-east-king-lion
File name:file
Download: download sample
Signature Stealc
Create hunting rule
File size:1'128'960 bytes
First seen:2024-07-17 15:55:04 UTC
Last seen:2024-07-24 13:26:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 001806c33a6e9fe5fbff34bdbd79b591 (112 x Stealc, 9 x MarsStealer, 1 x Amadey)
ssdeep 24576:zwGsL9sZYKeno7N8veRXZ0r/BGJ+HODSdCRJVCQTzbA519jqFNCM2Cr+z:UGauYKozEXZ01GJMlK0D08M2y
TLSH T19A35335F3C4878A8F29780B8D0D5710B6106403F5FA48472F69AB4DFAEE8A4EC559BF1
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 :
17
# of downloads :
382
Origin country :
US US
Vendor Threat Intelligence
Detection(s):
PUA.Win.Packer.EnigmaProtector-9852682-0
Create hunting rule

Verdict:
Malicious
Score:
95.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6697e992936dc865ddc74fd0
Tags:
Infostealer Stealth
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Connection attempt 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/6697e998cbb32227b6a85f8e/reports/01b8a035-c893-46d4-93a3-85de2f69f124/overview
Verdict:
Malicious
Labled as:
Fragtor.Generic
Link:
https://www.hybrid-analysis.com/sample/3f6d03c926c86f43ea6273d84b12a6e47e63e740687834ec62d6ca36d361f373
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/bca1bfb4-1d18-4961-9a41-65b5dde77c99
Result
Threat name:
Mars Stealer, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1475212
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
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/3f6d03c926c86f43ea6273d84b12a6e47e63e740687834ec62d6ca36d361f373
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3f6d03c926c86f43ea6273d84b12a6e47e63e740687834ec62d6ca36d361f373/
Threat name:
Win32.Trojan.Stealc
Create hunting rule
Status:
Malicious
First seen:
2024-07-17 15:56:05 UTC
File Type:
PE (Exe)
AV detection:
22 of 23 (95.65%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=h5wqhsjgzbxuh2tcopmewevg4r7ghz2anb4dj3dc23fdnu3b6nzq._file
Verdict:
malicious
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc botnet:funny discovery spyware stealer
Link:
https://tria.ge/reports/240717-tdbr3a1dmb/
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of NtSetInformationThreadHideFromDebugger
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks computer location settings
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Downloads MZ/PE file
Stealc
Malware Config
C2 Extraction:
http://85.28.47.30
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/33e66ac5-8c7a-4a37-99b1-a3bd1761ec2b
Unpacked files
SH256 hash:
3f6d03c926c86f43ea6273d84b12a6e47e63e740687834ec62d6ca36d361f373
MD5 hash:
c4f0555a4b63a012433513bb97fb8a3a
SHA1 hash:
17d8492a607030052a53861839ab826ff7f7b817
Detections:
SUSP_XORed_URL_In_EXE
Create hunting rule
Link:
https://www.unpac.me/results/8c2f9c5b-3e3a-4a6f-a476-8b151a533c42/
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/3f6d03c926c86f43ea6273d84b12a6e47e63e740687834ec62d6ca36d361f373

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 3f6d03c926c86f43ea6273d84b12a6e47e63e740687834ec62d6ca36d361f373

(this sample)

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

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

Comments