MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 f45bac31a404dca100cda5a595589e89114684e1383447663334a977c554553b. 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: 15
| SHA256 hash: | f45bac31a404dca100cda5a595589e89114684e1383447663334a977c554553b |
|---|---|
| SHA3-384 hash: | 735f402ff5690af16b8ffd27ada9fc042b1ba83b8b15d3535ef9892fef631216395b317458c2a410ea2f155ccbc95b81 |
| SHA1 hash: | 672a9d32789be27b529da8cde46e1cb9e540b027 |
| MD5 hash: | 942dbace85ab0d41045bb37a66ccb139 |
| humanhash: | violet-blossom-carbon-chicken |
| File name: | fuljani.exe |
| Download: | download sample |
| Signature | MarsStealer |
| File size: | 2'009'728 bytes |
| First seen: | 2023-10-16 07:34:29 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger) |
| ssdeep | 12288:B6J+7mCUM+rpvQT/SIFXWPvIsbH/l+R768N9xjHiif2fWn:ARzEN |
| Threatray | 150 similar samples on MalwareBazaar |
| TLSH | T1429538342AEA5019F173FEBA9FE476DADA2FB7733B07645A109103460623941DEC253E |
| TrID | 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10523/12/4) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.3% (.EXE) Win32 Executable (generic) (4505/5/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9) |
| File icon (PE): |  |
| dhash icon | 8430b0ccd4cc0080 (1 x MarsStealer) |
| Reporter |  rufus |
| Tags: | exe MarsStealer |
Intelligence
File Origin
# of uploads :
1
# of downloads :
300
Origin country :
GBVendor Threat Intelligence
Malware family:
arkei
ID:
1
File name:
fuljani.exe
Verdict:
Malicious activity
Analysis date:
2023-10-16 07:35:41 UTC
Tags:
marsstealer stealer arkei
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file
Сreating synchronization primitives
Creating a process from a recently created file
DNS request
Sending an HTTP GET request
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
overlay packed
Verdict:
Malicious
Labled as:
MSIL.Androm.Generic
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:
Mars Stealer, Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to detect sleep reduction / modifications
Found evasive API chain (may stop execution after checking computer name)
Found evasive API chain (may stop execution after checking locale)
Found evasive API chain (may stop execution after checking mutex)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
PE file has a writeable .text section
PE file has nameless sections
Sample uses string decryption to hide its real strings
Tries to harvest and steal browser information (history, passwords, etc)
Yara detected Mars stealer
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Threat name:
ByteCode-MSIL.Spyware.Marsstealer
Status:
Malicious
First seen:
2023-10-16 07:35:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
17 of 23 (73.91%)
Threat level:
2/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 140 additional samples on MalwareBazaar
Result
Malware family:
marsstealer
Score:
10/10
Tags:
family:marsstealer botnet:default stealer
Behaviour
Modifies system certificate store
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Mars Stealer
Malware Config
C2 Extraction:
kenesrakishev.net/wp-cron.php
Unpacked files
SH256 hash:
ba56df72f25d0fdd2e80589831279785406bfd6270d2dd109f2c68d7998992bd
MD5 hash:
f07348a8dc679b026ac123477d292073
SHA1 hash:
3b2f667ec52bff02cd77e1221d23e0bc7be63983
SH256 hash:
967e97d3620bc5918ea27f85f5d49fbdec5d181d70edcdda0416201c70e44da0
MD5 hash:
b3096368da465014d459e703c3e9fefa
SHA1 hash:
a6fa93be6bcb0c1bb9c57976796bcac7bdbda706
SH256 hash:
f45bac31a404dca100cda5a595589e89114684e1383447663334a977c554553b
MD5 hash:
942dbace85ab0d41045bb37a66ccb139
SHA1 hash:
672a9d32789be27b529da8cde46e1cb9e540b027
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
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: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | NETexecutableMicrosoft |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
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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