MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 3e50af1cf3039f0c88664c7df3c86ee628960219ae244fe062cff5e8003286e6. 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: 13
| SHA256 hash: | 3e50af1cf3039f0c88664c7df3c86ee628960219ae244fe062cff5e8003286e6 |
|---|---|
| SHA3-384 hash: | ee7661549dd8044b75ba1993d43889c8df6684438c25bf73ec232c7e74cb7d1cbf478c72d8fdb4503e2903e4057141ca |
| SHA1 hash: | 95f7ae5afb4326f3f7f95ba5421d3f3c42c48317 |
| MD5 hash: | 3d6ea99891659bf9f1e7389c62620105 |
| humanhash: | sad-juliet-magnesium-twelve |
| File name: | file |
| Download: | download sample |
| Signature | MarsStealer |
| File size: | 589'176 bytes |
| First seen: | 2023-10-30 18:53:27 UTC |
| Last seen: | 2023-10-30 20:32:21 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 298cb3d37775391ff8b8cc74cba1548f (15 x Stealc, 1 x MarsStealer) |
| ssdeep | 12288:MS4vdwKTNWuuRYqrggHp/bLf7daXBIlXSY4j+6qj9:aF7M0UJf7gRIlqjyj9 |
| Threatray | 961 similar samples on MalwareBazaar |
| TLSH | T1C2C49E51E2C14D3AC0672A3D5D1BE2AD58247E1226E8D88AAFD47FCC1F3528137F4A97 |
| TrID | 38.9% (.SCR) Windows screen saver (13097/50/3) 29.7% (.EXE) DOS Borland compiled Executable (generic) (10000/1/2) 13.3% (.EXE) Win32 Executable (generic) (4505/5/1) 6.0% (.EXE) OS/2 Executable (generic) (2029/13) 5.9% (.EXE) Generic Win/DOS Executable (2002/3) |
| File icon (PE): |  |
| dhash icon | 399998ecd4d46c0e (572 x Quakbot, 137 x ArkeiStealer, 82 x GCleaner) |
| Reporter |  jstrosch |
| Tags: | exe MarsStealer |
Intelligence
File Origin
# of uploads :
2
# of downloads :
333
Origin country :
USVendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Сreating synchronization primitives
Creating a window
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Running batch commands
Creating a process with a hidden window
Launching a process
Gathering data
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
control keylogger lolbin overlay packed replace shell32
Verdict:
Malicious
Labled as:
Malware
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:
Oski Stealer
Verdict:
Malicious
Result
Threat name:
CryptOne, Stealc, Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found evasive API chain (may stop execution after checking locale)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Self deletion via cmd or bat file
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Yara detected CryptOne packer
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Threat name:
Win32.Trojan.Stealc
Status:
Malicious
First seen:
2023-10-30 18:54:05 UTC
File Type:
PE (Exe)
Extracted files:
38
AV detection:
16 of 24 (66.67%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 951 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
8/10
Tags:
discovery spyware stealer
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks computer location settings
Deletes itself
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Unpacked files
SH256 hash:
3e50af1cf3039f0c88664c7df3c86ee628960219ae244fe062cff5e8003286e6
MD5 hash:
3d6ea99891659bf9f1e7389c62620105
SHA1 hash:
95f7ae5afb4326f3f7f95ba5421d3f3c42c48317
Malware family:
Stealc
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Mars Stealer
Score:
1.00
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: | BobSoftMiniDelphiBoBBobSoft |
|---|---|
| Author: | malware-lu |
| Rule name: | Borland |
|---|---|
| Author: | malware-lu |
| Rule name: | DebuggerCheck__QueryInfo |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | detect_Mars_Stealer |
|---|---|
| Author: | @malgamy12 |
| Description: | detect_Mars_Stealer |
| Rule name: | infostealer_win_stealc_standalone |
|---|---|
| Description: | Find standalone Stealc sample based on decryption routine or characteristic strings |
| Reference: | https://blog.sekoia.io/stealc-a-copycat-of-vidar-and-raccoon-infostealers-gaining-in-popularity-part-1/ |
| Rule name: | maldoc_find_kernel32_base_method_1 |
|---|---|
| Author: | Didier Stevens (https://DidierStevens.com) |
| Rule name: | maldoc_getEIP_method_1 |
|---|---|
| Author: | Didier Stevens (https://DidierStevens.com) |
| Rule name: | meth_get_eip |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | meth_stackstrings |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | shellcode |
|---|---|
| Author: | nex |
| Description: | Matched shellcode byte patterns |
| Rule name: | Trojan_W32_Gh0stMiancha_1_0_0 |
|---|
| Rule name: | win_stealc_w0 |
|---|---|
| Author: | crep1x |
| Description: | Find standalone Stealc sample based on decryption routine or characteristic strings |
| Reference: | https://blog.sekoia.io/stealc-a-copycat-of-vidar-and-raccoon-infostealers-gaining-in-popularity-part-1/ |
| Rule name: | yarahub_win_stealc_bytecodes_oct_2023 |
|---|---|
| Author: | Matthew @ Embee_Research |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
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