MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b571e91820383a4344729ad3b75f54c2770cf5d3877ad9b57cce99a442fd8e88. 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: 11


Intelligence 11 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b571e91820383a4344729ad3b75f54c2770cf5d3877ad9b57cce99a442fd8e88
SHA3-384 hash: 75fd783eeccffd61f39ce57034c87d9b1358d2b880c03644e7cda73c2059131bef8bce87966a2f519633ad81d8ec8f61
SHA1 hash: ebbd7b17cfd47f500ac399381ccb194c157e879e
MD5 hash: 8688e4aab69e8f7bfa9313eabcdb4a2a
humanhash: glucose-alabama-social-early
File name:SecuriteInfo.com.Win32.Trojan-gen.5667.19000
Download: download sample
Signature MarsStealer
Create hunting rule
File size:75'264 bytes
First seen:2023-01-04 05:30:48 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'652 x Formbook, 12'246 x SnakeKeylogger)
ssdeep 384:uOl0kpd4RecP9on16IfffffffffffffffffffffffffHRv8B/6apUEmvAv8rj3tx:uOyk9MivJ
Threatray 1'982 similar samples on MalwareBazaar
TLSH T1CA730322710047AADE213A76D8499FE352F77DEA303D29D7B857360FED3A2153E84249
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):PE icon
dhash icon 00e8f0ccccc0c400 (3 x MarsStealer)
Reporter SecuriteInfoCom
Tags:exe MarsStealer

Intelligence

File Origin
# of uploads :
1
# of downloads :
188
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
arkei
Create hunting rule
ID:
1
File name:
SecuriteInfo.com.Win32.Trojan-gen.5667.19000
Verdict:
Malicious activity
Analysis date:
2023-01-04 05:33:16 UTC
Tags:
arkei trojan stealer vidar
Link:
https://app.any.run/tasks/277ab2d8-62ab-416f-b49e-7fddc449dbc1

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/349315/
Detection(s):
SecuriteInfo.com.Win32.Trojan-gen.5667.19000.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Launching a process
Creating a process with a hidden window
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/63b50f1740e878e304229372/reports/213dfda2-1835-41fd-b984-899ef690d757/overview
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
Link:
https://analyze.intezer.com/analyses/74085619-68ef-472b-b5be-12be51ce8c5f
Result
Threat name:
Mars Stealer, Vidar
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1144922
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Encrypted powershell cmdline option found
Found C&C like URL pattern
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies existing user documents (likely ransomware behavior)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected Mars stealer
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 777652 Sample: SecuriteInfo.com.Win32.Troj... Startdate: 04/01/2023 Architecture: WINDOWS Score: 100 49 Snort IDS alert for network traffic 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Antivirus / Scanner detection for submitted sample 2->53 55 8 other signatures 2->55 8 SecuriteInfo.com.Win32.Trojan-gen.5667.19000.exe 16 7 2->8         started        13 Smvnyham.exe 14 3 2->13         started        15 Smvnyham.exe 3 2->15         started        process3 dnsIp4 47 espurity.tk 141.105.64.177, 443, 49708, 49720 NCONNECT-ASRU Russian Federation 8->47 39 C:\Users\user\AppData\...\Smvnyham.exe, PE32 8->39 dropped 41 C:\Users\...\Smvnyham.exe:Zone.Identifier, ASCII 8->41 dropped 43 SecuriteInfo.com.W....5667.19000.exe.log, ASCII 8->43 dropped 63 Encrypted powershell cmdline option found 8->63 65 Writes to foreign memory regions 8->65 67 Injects a PE file into a foreign processes 8->67 17 RegAsm.exe 93 8->17         started        21 powershell.exe 16 8->21         started        69 Antivirus detection for dropped file 13->69 71 Multi AV Scanner detection for dropped file 13->71 73 Machine Learning detection for dropped file 13->73 23 powershell.exe 13->23         started        25 powershell.exe 15->25         started        file5 signatures6 process7 dnsIp8 45 152.89.218.63, 49718, 49719, 80 DHUBRU Russian Federation 17->45 57 Tries to harvest and steal browser information (history, passwords, etc) 17->57 59 Tries to steal Crypto Currency Wallets 17->59 61 Modifies existing user documents (likely ransomware behavior) 17->61 27 cmd.exe 1 17->27         started        29 conhost.exe 21->29         started        31 conhost.exe 23->31         started        33 conhost.exe 25->33         started        signatures9 process10 process11 35 conhost.exe 27->35         started        37 timeout.exe 1 27->37         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b571e91820383a4344729ad3b75f54c2770cf5d3877ad9b57cce99a442fd8e88/
Threat name:
ByteCode-MSIL.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-01-04 01:57:57 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wvy6sgbaha5egrdstlj3ox2uyj3qz5otq55ntnl4z2m2iqx5r2ea._file
Verdict:
malicious
Similar samples:
3b24ec5793d1bab1702f0c857e91dc83957fff276b9e28060898b9ee9d731617
MarsStealer
4cc4171e3d6fed32ef70989056376256cc15448a75d9544d95124b161d700d13
MarsStealer
4def4ad12c7aab38e6248c20e211272f1c920a0295c8beda6228543e58c2129c
MarsStealer
706bc5d253dc0d7d05bd75b1893e5b7477c392e8166dc0d59de17b0cbd8ab272
MarsStealer
7248563d27d6963821e6e2536510681ada58cad62969cfa1f7d835ba1694ad20
MarsStealer
bef5258875c55fb1f312ecb27d8263702d778cbeed2c0ab5ec5b2da330b43ed7
MarsStealer
d3bf420061699f8fecf64062df4a95c9665054315b72535d7bbd7dbf3c28154a
MarsStealer
df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731
MarsStealer
ec4f9699f50903d03e0e41c9556fc580ac28f1d0d774804afcd8c8b5a63ef200
MarsStealer
f58a5c7c34a09860c8aaf590ce7cd9de51267edf6b3153f575a7caf6d8832364
MarsStealer
+ 1'972 additional samples on MalwareBazaar
Result
Malware family:
marsstealer
Create hunting rule
Score:
  10/10
Tags:
family:marsstealer botnet:default persistence spyware stealer
Link:
https://tria.ge/reports/230104-f7pzwshc8t/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Mars Stealer
Malware Config
C2 Extraction:
152.89.218.63/gate.php
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/eec0101c-5c7b-4ae6-9f1c-7588cccbea17
Unpacked files
SH256 hash:
b571e91820383a4344729ad3b75f54c2770cf5d3877ad9b57cce99a442fd8e88
MD5 hash:
8688e4aab69e8f7bfa9313eabcdb4a2a
SHA1 hash:
ebbd7b17cfd47f500ac399381ccb194c157e879e
Link:
https://www.unpac.me/results/e4f4d60a-da27-4152-a9d7-eafea942b11b/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/b571e91820383a4344729ad3b75f54c2770cf5d3877ad9b57cce99a442fd8e88

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:AsyncRat_Detection_Dec_2022
Create hunting rule
Author:Potatech
Description:AsyncRat
Rule name:INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/349315/

Comments