MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 66ec85436947cf61b3e3ad15d0dbf5c1bb2d83b816006a376aa524cd772ce375. 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: 16
| SHA256 hash: | 66ec85436947cf61b3e3ad15d0dbf5c1bb2d83b816006a376aa524cd772ce375 |
|---|---|
| SHA3-384 hash: | 1fb0353e73bb56284d6d5b81169aea369f60cbd70be9dc972c1db33c229e381615f11691d53cda657d7c5cb3d03083f9 |
| SHA1 hash: | 3b6b40056a1803da518a1093db31811ca5602022 |
| MD5 hash: | b07426273441e1e6ec042658ab2132cc |
| humanhash: | social-sweet-undress-venus |
| File name: | file |
| Download: | download sample |
| Signature | MarsStealer |
| File size: | 2'126'336 bytes |
| First seen: | 2024-10-28 05:25:28 UTC |
| Last seen: | 2024-10-28 07:19:02 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 2eabe9054cad5152567f0699947a2c5b (2'852 x LummaStealer, 1'312 x Stealc, 1'026 x Healer) |
| ssdeep | 49152:eRiPSowj08lKu5X8ANg9maTiDDIyKKFMrIat/:2iPSohiKvANoTi0KFMMa |
| TLSH | T181A5339B3FB61131DFEA5930EB7097B2A200D67412D1BB210EA2751F07E365614E3E6B |
| 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) |
| Magika | pebin |
| Reporter |  Bitsight |
| Tags: | exe MarsStealer |
Intelligence
File Origin
# of uploads :
20
# of downloads :
3'351
Origin country :
USVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-10-28 09:26:11 UTC
Tags:
stealer stealc
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Tags:
Powershell Lien Spam
Result
Verdict:
Malware
Maliciousness:
Behaviour
Сreating synchronization primitives
Searching for analyzing tools
Searching for the window
Creating a file
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:
microsoft_visual_cc packed packed packer_detected
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
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:
Suspicious
Result
Threat name:
Stealc, Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
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 sample
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Suricata IDS alerts 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 Powershell download and execute
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Threat name:
Win32.Trojan.Stealerc
Status:
Malicious
First seen:
2024-10-28 05:26:08 UTC
File Type:
PE (Exe)
AV detection:
18 of 24 (75.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
stealc
Score:
10/10
Tags:
family:stealc botnet:tale credential_access discovery evasion spyware stealer
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Browser Information Discovery
Program crash
System Location Discovery: System Language Discovery
Suspicious use of NtSetInformationThreadHideFromDebugger
Checks installed software on the system
Checks BIOS information in registry
Identifies Wine through registry keys
Loads dropped DLL
Reads user/profile data of web browsers
Uses browser remote debugging
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Stealc
Stealc family
Malware Config
C2 Extraction:
http://185.215.113.206
Verdict:
Malicious
Tags:
stealc
YARA:
n/a
Unpacked files
SH256 hash:
81a4f37c5495800b7cc46aea6535d9180dadb5c151db6f1fd1968d1cd8c1eeb4
MD5 hash:
eda18948a989176f4eebb175ce806255
SHA1 hash:
ff22a3d5f5fb705137f233c36622c79eab995897
SH256 hash:
7878fce286d736b38ea8e42749a8403b820ff425ef4b6b78ab692c7e27da2a40
MD5 hash:
cfd45a993597b0770247ae42e8916ead
SHA1 hash:
ccedcfb9cbd221a322936ca205412b360b6128a7
Detections:
stealc
win_stealc_w0
win_stealc_a0
detect_Mars_Stealer
SH256 hash:
66ec85436947cf61b3e3ad15d0dbf5c1bb2d83b816006a376aa524cd772ce375
MD5 hash:
b07426273441e1e6ec042658ab2132cc
SHA1 hash:
3b6b40056a1803da518a1093db31811ca5602022
Malware family:
Stealc
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Dropped by
Amadey
Delivery method
Distributed via web download
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
| ID | Title | Severity |
|---|---|---|
| CHECK_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (HIGH_ENTROPY_VA) | high |
| CHECK_NX | Missing Non-Executable Memory Protection | critical |
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