MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f58a5c7c34a09860c8aaf590ce7cd9de51267edf6b3153f575a7caf6d8832364. 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: f58a5c7c34a09860c8aaf590ce7cd9de51267edf6b3153f575a7caf6d8832364
SHA3-384 hash: 99d700de07a7eba8e2bbcb66c9a7af7f9fdeb2a8196e522e9a66ebf0d0c9e78c8685ae113fdd097dc9a2b6e72bc733ce
SHA1 hash: caf958dad191f647eb6d4ef885cf4da92e11969e
MD5 hash: a5db6adb574552a24d3b886762f4dbf3
humanhash: diet-potato-colorado-west
File name:Parcel Info-ConfirmationDec@22.pdf.exe
Download: download sample
Signature MarsStealer
Create hunting rule
File size:144'896 bytes
First seen:2022-12-21 16:13:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 1536:yo5pvN49Hq+qqqXlllllllll6vURCmo3NGqPqOxrFt1WbKQrxqkqfbL:fpav33lRB6ybL
Threatray 1'920 similar samples on MalwareBazaar
TLSH T14CE3D8EA5073896AF4E054BD7B0B0238FAC19DBCD19B466E14E46D3E849C2D0B67F64C
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 f0d4eae4b092c4f0 (1 x MarsStealer)
Reporter abuse_ch
Tags:exe MarsStealer

Intelligence

File Origin
# of uploads :
1
# of downloads :
184
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
arkei
Create hunting rule
ID:
1
File name:
Parcel Info-ConfirmationDec@22.pdf.exe
Verdict:
Malicious activity
Analysis date:
2022-12-21 16:15:07 UTC
Tags:
arkei trojan stealer vidar opendir
Link:
https://app.any.run/tasks/701063ba-dfb7-4355-accc-03e72545fa8f

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/348751/
Detection(s):
SecuriteInfo.com.Variant.MSILHeracles.56658.14466.13699.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Sending an HTTP GET request
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Query of malicious DNS domain
Sending a TCP request to an infection source
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/63a330cdd5fc34e7eb5a2d38/reports/d0b60a4e-e724-403d-aee8-a46de1e1dd89/overview
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/8753f908-06ca-479d-9ed3-d4d10fbdab1a
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/1138785
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Encrypted powershell cmdline option found
Found C&C like URL pattern
Found many strings related to Crypto-Wallets (likely being stolen)
Initial sample is a PE file and has a suspicious name
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 domain / URL
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
Uses an obfuscated file name to hide its real file extension (double extension)
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: 771515 Sample: Parcel Info-ConfirmationDec... Startdate: 21/12/2022 Architecture: WINDOWS Score: 100 49 Snort IDS alert for network traffic 2->49 51 Multi AV Scanner detection for domain / URL 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 13 other signatures 2->55 8 Parcel Info-ConfirmationDec@22.pdf.exe 16 7 2->8         started        13 Smvnyham.exe 14 3 2->13         started        15 Smvnyham.exe 2->15         started        process3 dnsIp4 47 sfdnwe.ga 193.25.214.14, 443, 49706, 49714 DEDIPATH-LLCUS Germany 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 Parcel Info-Confir...nDec@22.pdf.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 87 8->17         started        21 powershell.exe 16 8->21         started        23 RegAsm.exe 8->23         started        25 RegAsm.exe 8->25         started        69 Multi AV Scanner detection for dropped file 13->69 71 Machine Learning detection for dropped file 13->71 27 powershell.exe 13->27         started        file5 signatures6 process7 dnsIp8 45 152.89.218.27, 49711, 49713, 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 29 cmd.exe 1 17->29         started        31 conhost.exe 21->31         started        33 conhost.exe 27->33         started        signatures9 process10 process11 35 conhost.exe 29->35         started        37 timeout.exe 29->37         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f58a5c7c34a09860c8aaf590ce7cd9de51267edf6b3153f575a7caf6d8832364/
Threat name:
ByteCode-MSIL.Trojan.Stelega
Create hunting rule
Status:
Malicious
First seen:
2022-12-21 03:10:59 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6wffy7buucmgbsfk6wim47gz3zism7w7nmyvh5lvu7fpnwedensa._file
Verdict:
malicious
Similar samples:
4cc4171e3d6fed32ef70989056376256cc15448a75d9544d95124b161d700d13
MarsStealer
4def4ad12c7aab38e6248c20e211272f1c920a0295c8beda6228543e58c2129c
MarsStealer
706bc5d253dc0d7d05bd75b1893e5b7477c392e8166dc0d59de17b0cbd8ab272
MarsStealer
7248563d27d6963821e6e2536510681ada58cad62969cfa1f7d835ba1694ad20
MarsStealer
a0fa31bcae15a52955443b7d0c7032cd970b9a52bb3c8642e37c2ea81519832f
MarsStealer
bef5258875c55fb1f312ecb27d8263702d778cbeed2c0ab5ec5b2da330b43ed7
MarsStealer
df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731
MarsStealer
ee52d8834cce35ee8287c44108bd9f6fca35dc7ffa15ec2b699e254c1818ee18
MarsStealer
+ 1'910 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/221221-tpmzgacf37/
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:
152.89.218.27/aa/gate.php
Unpacked files
SH256 hash:
f58a5c7c34a09860c8aaf590ce7cd9de51267edf6b3153f575a7caf6d8832364
MD5 hash:
a5db6adb574552a24d3b886762f4dbf3
SHA1 hash:
caf958dad191f647eb6d4ef885cf4da92e11969e
Detections:
PureCrypter_Stage1
Create hunting rule
Link:
https://www.unpac.me/results/6ad5393f-bcd9-47ad-a57f-1642bf1c900d/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f58a5c7c34a0/report/overview.html
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/f58a5c7c34a09860c8aaf590ce7cd9de51267edf6b3153f575a7caf6d8832364

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/348751/

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