MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4c4967b1c31f4c9c06d951a627ee8c325106835d6142e4c92bba56fb67a732fc. 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: 15


Intelligence 15 IOCs YARA 1 File information Comments

SHA256 hash: 4c4967b1c31f4c9c06d951a627ee8c325106835d6142e4c92bba56fb67a732fc
SHA3-384 hash: 4aac62602644099c2633201389c4230a2f8fec5ba06cbb10cb2775499e2297fe0ae1d462e7b58c2afced25dc96fa306f
SHA1 hash: 9f7886dff966613888d799c788e705de2c94bd6d
MD5 hash: 60d8ae12fa771cfb6bf9c71e8fa75136
humanhash: three-hotel-may-delta
File name:file
Download: download sample
Signature Stealc
File size:2'499'584 bytes
First seen:2024-07-14 11:03:47 UTC
Last seen:2024-07-24 14:01:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 001806c33a6e9fe5fbff34bdbd79b591 (112 x Stealc, 9 x MarsStealer, 1 x Amadey)
ssdeep 49152:BoNcjwtMyHVKcTEvlyQ/OYZUz6bldZjJwwd6rh3rzzcKD5D00e7:BDEtMOVKcTGXGbwzjJTUrFrUkQ7
TLSH T182C533AC8C110F2CE93F07B97C2B3B2B92B354B1E4DC579A141B3A957E725A2BD01197
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 :
464
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
4c4967b1c31f4c9c06d951a627ee8c325106835d6142e4c92bba56fb67a732fc.exe
Verdict:
Malicious activity
Analysis date:
2024-07-14 11:07:56 UTC
Tags:
stealer stealc

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
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
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.
Result
Threat name:
Amadey, Mars Stealer, Stealc, Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1472850 Sample: file.exe Startdate: 14/07/2024 Architecture: WINDOWS Score: 100 80 youtube-ui.l.google.com 2->80 82 www.youtube.com 2->82 84 33 other IPs or domains 2->84 110 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 11 file.exe 36 2->11         started        16 explorti.exe 2->16         started        18 explorti.exe 2->18         started        20 2 other processes 2->20 signatures3 process4 dnsIp5 92 85.28.47.30, 49730, 49746, 80 GES-ASRU Russian Federation 11->92 94 77.91.77.81, 49732, 49744, 49747 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 11->94 62 C:\Users\user\AppData\...behaviorgraphIJECGDGCB.exe, PE32 11->62 dropped 64 C:\Users\user\AppData\...\softokn3[1].dll, PE32 11->64 dropped 66 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 11->66 dropped 68 12 other files (8 malicious) 11->68 dropped 118 Detected unpacking (changes PE section rights) 11->118 120 Tries to steal Mail credentials (via file / registry access) 11->120 122 Found many strings related to Crypto-Wallets (likely being stolen) 11->122 130 4 other signatures 11->130 22 cmd.exe 1 11->22         started        24 cmd.exe 2 11->24         started        124 Hides threads from debuggers 16->124 126 Tries to detect sandboxes / dynamic malware analysis system (registry check) 16->126 128 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 16->128 26 firefox.exe 20->26         started        file6 signatures7 process8 dnsIp9 30 GIJECGDGCB.exe 4 22->30         started        34 conhost.exe 22->34         started        36 conhost.exe 24->36         started        86 youtube-ui.l.google.com 216.58.212.174 GOOGLEUS United States 26->86 88 prod.detectportal.prod.cloudops.mozgcp.net 34.107.221.82 GOOGLEUS United States 26->88 90 9 other IPs or domains 26->90 56 C:\Users\user\AppData\...\gmpopenh264.dll.tmp, PE32+ 26->56 dropped 58 C:\Users\user\...\gmpopenh264.dll (copy), PE32+ 26->58 dropped 60 C:\Users\user\AppData\...\places.sqlite-wal, SQLite 26->60 dropped 38 firefox.exe 26->38         started        40 firefox.exe 26->40         started        42 firefox.exe 26->42         started        file10 process11 file12 78 C:\Users\user\AppData\Local\...\explorti.exe, PE32 30->78 dropped 140 Antivirus detection for dropped file 30->140 142 Detected unpacking (changes PE section rights) 30->142 144 Machine Learning detection for dropped file 30->144 146 5 other signatures 30->146 44 explorti.exe 19 30->44         started        signatures13 process14 dnsIp15 96 77.91.77.82, 49743, 49745, 80 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 44->96 70 C:\Users\user\AppData\...\8c16d790d7.exe, PE32 44->70 dropped 72 C:\Users\user\AppData\...\c722dc1193.exe, PE32 44->72 dropped 74 C:\Users\user\AppData\Local\...\random[1].exe, PE32 44->74 dropped 76 C:\Users\user\AppData\Local\...\random[1].exe, PE32 44->76 dropped 132 Antivirus detection for dropped file 44->132 134 Detected unpacking (changes PE section rights) 44->134 136 Tries to detect sandboxes and other dynamic analysis tools (window names) 44->136 138 5 other signatures 44->138 49 c722dc1193.exe 12 44->49         started        52 8c16d790d7.exe 1 44->52         started        file16 signatures17 process18 signatures19 98 Antivirus detection for dropped file 49->98 100 Multi AV Scanner detection for dropped file 49->100 102 Detected unpacking (changes PE section rights) 49->102 104 Hides threads from debuggers 49->104 106 Binary is likely a compiled AutoIt script file 52->106 108 Machine Learning detection for dropped file 52->108 54 firefox.exe 52->54         started        process20
Threat name:
Win32.Spyware.Stealc
Status:
Suspicious
First seen:
2024-07-14 11:04:06 UTC
File Type:
PE (Exe)
AV detection:
20 of 22 (90.91%)
Threat level:
  2/5
Verdict:
suspicious
Result
Malware family:
Score:
  10/10
Tags:
family:amadey family:stealc botnet:4dd39d botnet:hate discovery evasion spyware stealer trojan
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
Unpacked files
SH256 hash:
4c4967b1c31f4c9c06d951a627ee8c325106835d6142e4c92bba56fb67a732fc
MD5 hash:
60d8ae12fa771cfb6bf9c71e8fa75136
SHA1 hash:
9f7886dff966613888d799c788e705de2c94bd6d
Please note that we are no longer able to provide a coverage score for Virus Total.

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
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 4c4967b1c31f4c9c06d951a627ee8c325106835d6142e4c92bba56fb67a732fc

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download

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