MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3a31cc22829750508f76063b4daf9031cc77f1a3d18443bc49c2c500ae9295f7. 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


Intelligence 16 IOCs YARA 1 File information Comments

SHA256 hash: 3a31cc22829750508f76063b4daf9031cc77f1a3d18443bc49c2c500ae9295f7
SHA3-384 hash: 00c7a7255ad0cec2a3f46ed54e0dd91fd8426b12b16e72cb5fe8cd7dd677ad043c058c2513d0403e3c83ddc6a808053d
SHA1 hash: 15ba8560b30f5cb2998118be2ab127229d21e179
MD5 hash: a5b724154ef3434013666c4f5ab0ac17
humanhash: virginia-may-fifteen-bacon
File name:file
Download: download sample
Signature MarsStealer
File size:2'828'800 bytes
First seen:2024-09-18 13:57:15 UTC
Last seen:2024-09-18 14:08:07 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 2eabe9054cad5152567f0699947a2c5b (2'852 x LummaStealer, 1'312 x Stealc, 1'026 x Healer)
ssdeep 49152:/rAqAqqMDVG6E0KMwUKMxMT5gx5x2snhVe0c:/0qAlMDVFvwU5atgxGyVe
Threatray 1 similar samples on MalwareBazaar
TLSH T191D53CA1B80672CBE88E17789567CD4AD93D07B5C73108D3996DB4BA7DB3CC122B6C24
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


Avatar
Bitsight
url: http://185.215.113.100/steam/random.exe

Intelligence


File Origin
# of uploads :
3
# of downloads :
456
Origin country :
US US
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-09-18 13:59:10 UTC
Tags:
stealer stealc loader themida opendir amadey botnet autoit

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
94.9%
Tags:
Execution Generic Infostealer Network Stealth Trojan
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-vm anti-vm microsoft_visual_cc packed
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, 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 API chain indicative of debugger detection
Found API chain indicative of sandbox detection
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 dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Sigma detected: Suspicious File Creation In Uncommon AppData Folder
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 Amadeys stealer DLL
Yara detected Powershell download and execute
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1513208 Sample: file.exe Startdate: 18/09/2024 Architecture: WINDOWS Score: 100 46 Suricata IDS alerts for network traffic 2->46 48 Found malware configuration 2->48 50 Antivirus detection for URL or domain 2->50 52 15 other signatures 2->52 8 file.exe 39 2->8         started        13 svoutse.exe 2->13         started        process3 dnsIp4 42 185.215.113.103, 49711, 80 WHOLESALECONNECTIONSNL Portugal 8->42 44 185.215.113.100, 49718, 80 WHOLESALECONNECTIONSNL Portugal 8->44 34 C:\Users\user\AppData\RoamingAFBAKKFCBF.exe, PE32 8->34 dropped 36 C:\Users\user\AppData\...\softokn3[1].dll, PE32 8->36 dropped 38 C:\Users\user\AppData\Local\...\random[1].exe, PE32 8->38 dropped 40 13 other files (9 malicious) 8->40 dropped 70 Detected unpacking (changes PE section rights) 8->70 72 Tries to steal Mail credentials (via file / registry access) 8->72 74 Found many strings related to Crypto-Wallets (likely being stolen) 8->74 82 6 other signatures 8->82 15 cmd.exe 1 8->15         started        17 cmd.exe 1 8->17         started        76 Hides threads from debuggers 13->76 78 Tries to detect sandboxes / dynamic malware analysis system (registry check) 13->78 80 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 13->80 file5 signatures6 process7 process8 19 KECGDBFCBK.exe 4 15->19         started        23 conhost.exe 15->23         started        25 RoamingAFBAKKFCBF.exe 17->25         started        27 conhost.exe 17->27         started        file9 32 C:\Users\user\AppData\Local\...\svoutse.exe, PE32 19->32 dropped 54 Antivirus detection for dropped file 19->54 56 Detected unpacking (changes PE section rights) 19->56 58 Machine Learning detection for dropped file 19->58 68 5 other signatures 19->68 29 svoutse.exe 19->29         started        60 Multi AV Scanner detection for dropped file 25->60 62 Binary is likely a compiled AutoIt script file 25->62 64 Found API chain indicative of debugger detection 25->64 66 Found API chain indicative of sandbox detection 25->66 signatures10 process11 signatures12 84 Antivirus detection for dropped file 29->84 86 Detected unpacking (changes PE section rights) 29->86 88 Tries to detect sandboxes and other dynamic analysis tools (window names) 29->88 90 5 other signatures 29->90
Threat name:
Win32.Trojan.Amadey
Status:
Malicious
First seen:
2024-09-18 13:58:11 UTC
File Type:
PE (Exe)
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:amadey family:stealc botnet:c7817d botnet:rave credential_access discovery evasion persistence spyware stealer trojan
Behaviour
Checks processor information in registry
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Windows directory
AutoIT Executable
Suspicious use of NtSetInformationThreadHideFromDebugger
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Checks installed software on the system
Checks BIOS information in registry
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
Unsecured Credentials: Credentials In Files
Downloads MZ/PE file
Credentials from Password Stores: Credentials from Web Browsers
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Amadey
Stealc
Malware Config
C2 Extraction:
http://185.215.113.103
http://31.41.244.10
Unpacked files
SH256 hash:
60929c84414e3e68a21dbe186eb50a3e6c8b0efe81e001185af0dc618a49256c
MD5 hash:
f2e10b7bfdaf4ac762564357362c9dfb
SHA1 hash:
e32af862c3aae257a0db08fbc1f71a34a13bffdc
Detections:
stealc win_stealc_w0 win_stealc_a0
SH256 hash:
3a31cc22829750508f76063b4daf9031cc77f1a3d18443bc49c2c500ae9295f7
MD5 hash:
a5b724154ef3434013666c4f5ab0ac17
SHA1 hash:
15ba8560b30f5cb2998118be2ab127229d21e179
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:vmdetect
Author:nex
Description:Possibly employs anti-virtualization techniques

File information


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

Web download

MarsStealer

Executable exe 3a31cc22829750508f76063b4daf9031cc77f1a3d18443bc49c2c500ae9295f7

(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

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