MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4d337368aebb2cf478e81a3f62406c4315dc8151acc57a15c6519017e845641e. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4d337368aebb2cf478e81a3f62406c4315dc8151acc57a15c6519017e845641e
SHA3-384 hash: 79ed6f9812de91709672726e99fdfda7038fcd6dbd9515b8842e68d44eb92d3f08b78180a91966dd945b8b8bdac74956
SHA1 hash: 99d154f2494da662f1d11fda5f69ffe5c6c8e19f
MD5 hash: 1b90e9911ad236ab1b2febb649cb321b
humanhash: oscar-red-carbon-sink
File name:file
Download: download sample
Signature Stealc
Create hunting rule
File size:2'494'464 bytes
First seen:2024-07-14 15:07:33 UTC
Last seen:2024-07-24 14:04:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 001806c33a6e9fe5fbff34bdbd79b591 (112 x Stealc, 9 x MarsStealer, 1 x Amadey)
ssdeep 49152:RfPC/I1UHtpx+gzTzSR6YG1Wz2QmSeU8c3HWGbCc:RfqDHtp7zW6zAztAOW
TLSH T1DFB533D2E3426C61FBC0F973B81477AFC0AAE74AC32B7A25E611DB5325B70481CD6649
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 :
14
# of downloads :
344
Origin country :
US US
Vendor Threat Intelligence
Malware family:
amadey
Create hunting rule
ID:
1
File name:
4d337368aebb2cf478e81a3f62406c4315dc8151acc57a15c6519017e845641e.exe
Verdict:
Malicious activity
Analysis date:
2024-07-14 15:12:39 UTC
Tags:
stealer stealc loader antivm amadey botnet themida
Link:
https://app.any.run/tasks/6457286d-05a4-46a3-bf7f-86b5fd90d776

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
PUA.Win.Packer.EnigmaProtector-9852682-0
Create hunting rule

Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6693e9d5da3a746b9a73e123win7simulatehigh_evasion
Tags:
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 packed packed shell32
Link:
https://www.filescan.io/uploads/6693e9d598b20a66261cdeae/reports/711a202b-d5f7-478c-a0e7-c8cea1d3ba4c/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/4d337368aebb2cf478e81a3f62406c4315dc8151acc57a15c6519017e845641e
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/1d808d85-6655-428a-8879-e4aa3cb5785d
Result
Threat name:
Amadey, Mars Stealer, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1472883
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Binary is likely a compiled AutoIt script file
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Hides threads from debuggers
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
PE file has nameless sections
Sample uses string decryption to hide its real strings
Snort IDS alert 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)
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
Tries to steal Mail credentials (via file / registry access)
Yara detected Amadeys stealer DLL
Yara detected Mars stealer
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: 1472883 Sample: file.exe Startdate: 14/07/2024 Architecture: WINDOWS Score: 100 76 youtube-ui.l.google.com 2->76 78 www.youtube.com 2->78 80 33 other IPs or domains 2->80 110 Snort IDS alert for network traffic 2->110 112 Multi AV Scanner detection for domain / URL 2->112 114 Found malware configuration 2->114 116 17 other signatures 2->116 9 file.exe 36 2->9         started        14 explorti.exe 19 2->14         started        16 explorti.exe 2->16         started        18 firefox.exe 1 2->18         started        signatures3 process4 dnsIp5 82 85.28.47.30, 49730, 49747, 80 GES-ASRU Russian Federation 9->82 84 77.91.77.81, 49734, 49745, 49748 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 9->84 54 C:\Users\user\AppData\...behaviorgraphCFHDAKECF.exe, PE32 9->54 dropped 56 C:\Users\user\AppData\...\softokn3[1].dll, PE32 9->56 dropped 58 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 9->58 dropped 68 12 other files (8 malicious) 9->68 dropped 130 Detected unpacking (changes PE section rights) 9->130 132 Tries to steal Mail credentials (via file / registry access) 9->132 134 Found many strings related to Crypto-Wallets (likely being stolen) 9->134 142 4 other signatures 9->142 20 cmd.exe 1 9->20         started        22 cmd.exe 2 9->22         started        86 77.91.77.82, 49744, 49746, 49749 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 14->86 60 C:\Users\user\AppData\...\5afb596baf.exe, PE32 14->60 dropped 62 C:\Users\user\AppData\...\9ba4f0eab2.exe, PE32 14->62 dropped 64 C:\Users\user\AppData\Local\...\random[1].exe, PE32 14->64 dropped 66 C:\Users\user\AppData\Local\...\random[1].exe, PE32 14->66 dropped 136 Hides threads from debuggers 14->136 138 Tries to detect sandboxes / dynamic malware analysis system (registry check) 14->138 140 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 14->140 24 9ba4f0eab2.exe 12 14->24         started        27 5afb596baf.exe 1 14->27         started        29 firefox.exe 216 18->29         started        file6 signatures7 process8 dnsIp9 33 GCFHDAKECF.exe 4 20->33         started        37 conhost.exe 20->37         started        39 conhost.exe 22->39         started        118 Antivirus detection for dropped file 24->118 120 Multi AV Scanner detection for dropped file 24->120 122 Detected unpacking (changes PE section rights) 24->122 124 Hides threads from debuggers 24->124 126 Binary is likely a compiled AutoIt script file 27->126 128 Machine Learning detection for dropped file 27->128 41 firefox.exe 1 27->41         started        88 youtube-ui.l.google.com 142.250.185.174, 443, 49774, 49776 GOOGLEUS United States 29->88 90 prod.detectportal.prod.cloudops.mozgcp.net 34.107.221.82, 49775, 49783, 49785 GOOGLEUS United States 29->90 92 9 other IPs or domains 29->92 70 C:\Users\user\AppData\...\gmpopenh264.dll.tmp, PE32+ 29->70 dropped 72 C:\Users\user\...\gmpopenh264.dll (copy), PE32+ 29->72 dropped 74 C:\Users\user\AppData\...\places.sqlite-wal, SQLite 29->74 dropped 43 firefox.exe 29->43         started        45 firefox.exe 29->45         started        47 firefox.exe 29->47         started        file10 signatures11 process12 file13 52 C:\Users\user\AppData\Local\...\explorti.exe, PE32 33->52 dropped 102 Antivirus detection for dropped file 33->102 104 Detected unpacking (changes PE section rights) 33->104 106 Machine Learning detection for dropped file 33->106 108 5 other signatures 33->108 49 explorti.exe 33->49         started        signatures14 process15 signatures16 94 Antivirus detection for dropped file 49->94 96 Detected unpacking (changes PE section rights) 49->96 98 Tries to detect sandboxes and other dynamic analysis tools (window names) 49->98 100 6 other signatures 49->100
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4d337368aebb2cf478e81a3f62406c4315dc8151acc57a15c6519017e845641e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4d337368aebb2cf478e81a3f62406c4315dc8151acc57a15c6519017e845641e/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2024-07-14 15:08:08 UTC
File Type:
PE (Exe)
AV detection:
20 of 24 (83.33%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=juzxg2foxmwpi6hidi7weqdmimk5zakrvtcxufogkgibp2cfmqpa._file
Verdict:
malicious
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:amadey family:stealc botnet:4dd39d botnet:hate discovery evasion spyware stealer trojan
Link:
https://tria.ge/reports/240714-shwglaxgmh/
Behaviour
Checks processor information in registry
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
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:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0d20046c-7eed-4ff2-b79c-50193db5baa2
Unpacked files
SH256 hash:
4d337368aebb2cf478e81a3f62406c4315dc8151acc57a15c6519017e845641e
MD5 hash:
1b90e9911ad236ab1b2febb649cb321b
SHA1 hash:
99d154f2494da662f1d11fda5f69ffe5c6c8e19f
Link:
https://www.unpac.me/results/6a539981-0f98-4f3a-b93a-a7f654918656/
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/4d337368aebb2cf478e81a3f62406c4315dc8151acc57a15c6519017e845641e

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)

File information

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

Web download

Stealc

Executable exe 4d337368aebb2cf478e81a3f62406c4315dc8151acc57a15c6519017e845641e

(this sample)

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

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