MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3b24ec5793d1bab1702f0c857e91dc83957fff276b9e28060898b9ee9d731617. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3b24ec5793d1bab1702f0c857e91dc83957fff276b9e28060898b9ee9d731617
SHA3-384 hash: 37bef033d9691b979ce083de77ee46435a9c13fffb995309eda71ab66115b7aac99e07f9f228a22a98b52fb84b8d3e36
SHA1 hash: a4f2f4c9a3fe4bcbadbe4b144db7781d7d2e5db0
MD5 hash: 58a8aa4a36feab467de4cc04f75b45e4
humanhash: victor-iowa-utah-cola
File name:PI_KPCPU_231(MECH)NBI-pdf.exe
Download: download sample
Signature MarsStealer
Create hunting rule
File size:74'240 bytes
First seen:2022-12-22 08:06:13 UTC
Last seen:2023-01-01 18:52:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 384:BPIHFMG+7CkvZilZq4KCm+ApH1ThO/FU:BPQOVbZilZq4O+wr
Threatray 1'968 similar samples on MalwareBazaar
TLSH T1FB7396C5FA0095A4EC2A97712636DD7116037C7EA4B4292C3ECE3E7B3EBF4629421857
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 d4c4c4d8ccd4f0c4 (63 x Formbook, 23 x AgentTesla, 8 x RemcosRAT)
Reporter lowmal3
Tags:exe MarsStealer

Intelligence

File Origin
# of uploads :
3
# of downloads :
188
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
arkei
Create hunting rule
ID:
1
File name:
PI_KPCPU_231(MECH)NBI-pdf.exe
Verdict:
Malicious activity
Analysis date:
2022-12-22 08:09:26 UTC
Tags:
arkei trojan stealer vidar opendir
Link:
https://app.any.run/tasks/88725ea0-01aa-432b-ba35-ed08b0620c9f

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/348977/
Detection(s):
SecuriteInfo.com.Variant.MSILHeracles.52255.837.6873.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Sending an HTTP GET 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:
packed
Link:
https://www.filescan.io/uploads/63a41028673d3bcb5ee09363/reports/7dd18f67-5a08-441f-91f9-6ffb96a3c862/overview
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/980ed751-2bec-40e2-8cbe-9d2c56f7c910
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/1139218
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Encrypted powershell cmdline option found
Found C&C like URL pattern
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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: 771944 Sample: PI_KPCPU_231(MECH)NBI-pdf.exe Startdate: 22/12/2022 Architecture: WINDOWS Score: 100 45 Snort IDS alert for network traffic 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Antivirus detection for URL or domain 2->49 51 10 other signatures 2->51 8 PI_KPCPU_231(MECH)NBI-pdf.exe 16 7 2->8         started        13 Smvnyham.exe 14 3 2->13         started        15 Smvnyham.exe 2 2->15         started        process3 dnsIp4 43 sfdnwe.ga 193.25.214.14, 443, 49709, 49720 DEDIPATH-LLCUS Germany 8->43 35 C:\Users\user\AppData\...\Smvnyham.exe, PE32 8->35 dropped 37 C:\Users\...\Smvnyham.exe:Zone.Identifier, ASCII 8->37 dropped 39 C:\...\PI_KPCPU_231(MECH)NBI-pdf.exe.log, ASCII 8->39 dropped 59 Encrypted powershell cmdline option found 8->59 61 Writes to foreign memory regions 8->61 63 Injects a PE file into a foreign processes 8->63 17 RegAsm.exe 93 8->17         started        21 powershell.exe 14 8->21         started        65 Antivirus detection for dropped file 13->65 67 Multi AV Scanner detection for dropped file 13->67 69 Machine Learning detection for dropped file 13->69 23 powershell.exe 13->23         started        file5 signatures6 process7 dnsIp8 41 152.89.218.27, 49721, 49724, 80 DHUBRU Russian Federation 17->41 53 Tries to harvest and steal browser information (history, passwords, etc) 17->53 55 Tries to steal Crypto Currency Wallets 17->55 57 Modifies existing user documents (likely ransomware behavior) 17->57 25 cmd.exe 17->25         started        27 conhost.exe 21->27         started        29 conhost.exe 23->29         started        signatures9 process10 process11 31 conhost.exe 25->31         started        33 timeout.exe 25->33         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3b24ec5793d1bab1702f0c857e91dc83957fff276b9e28060898b9ee9d731617/
Threat name:
ByteCode-MSIL.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2022-12-22 02:40:32 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
21 of 39 (53.85%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hmsoyv4t2g5lc4bpbscx5eo4qokx77zhnopcqbqitc465hltcylq._file
Verdict:
malicious
Similar samples:
4cc4171e3d6fed32ef70989056376256cc15448a75d9544d95124b161d700d13
MarsStealer
4def4ad12c7aab38e6248c20e211272f1c920a0295c8beda6228543e58c2129c
MarsStealer
706bc5d253dc0d7d05bd75b1893e5b7477c392e8166dc0d59de17b0cbd8ab272
MarsStealer
7248563d27d6963821e6e2536510681ada58cad62969cfa1f7d835ba1694ad20
MarsStealer
a0fa31bcae15a52955443b7d0c7032cd970b9a52bb3c8642e37c2ea81519832f
MarsStealer
bef5258875c55fb1f312ecb27d8263702d778cbeed2c0ab5ec5b2da330b43ed7
MarsStealer
d3bf420061699f8fecf64062df4a95c9665054315b72535d7bbd7dbf3c28154a
MarsStealer
df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731
MarsStealer
ee52d8834cce35ee8287c44108bd9f6fca35dc7ffa15ec2b699e254c1818ee18
MarsStealer
f58a5c7c34a09860c8aaf590ce7cd9de51267edf6b3153f575a7caf6d8832364
MarsStealer
+ 1'958 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/221222-jzzqxahc7s/
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/zz/gate.php
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/f516191e-9122-4063-b01b-2132e039fb58
Unpacked files
SH256 hash:
3b24ec5793d1bab1702f0c857e91dc83957fff276b9e28060898b9ee9d731617
MD5 hash:
58a8aa4a36feab467de4cc04f75b45e4
SHA1 hash:
a4f2f4c9a3fe4bcbadbe4b144db7781d7d2e5db0
Link:
https://www.unpac.me/results/5d201b1f-6492-41fc-9d76-87a2899274d1/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3b24ec5793d1/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/3b24ec5793d1bab1702f0c857e91dc83957fff276b9e28060898b9ee9d731617

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: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.

Malspam

MarsStealer

Executable exe 3b24ec5793d1bab1702f0c857e91dc83957fff276b9e28060898b9ee9d731617

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/348977/

Comments