MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d238402f837f3ca9b607245fff0f8390398f842344664e3d5af2ab33f8cbc016. 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


Intelligence 15 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d238402f837f3ca9b607245fff0f8390398f842344664e3d5af2ab33f8cbc016
SHA3-384 hash: b814740473aadd60c5037d0ca1359b457612718c64a4689cbad4dc7b95b24833286b9bee011f983b04c0d9d40b6272b4
SHA1 hash: 1808e1df096edf223855c2269562b93e031ca3b0
MD5 hash: d75cd72f7154399e60b3a3b1801512ed
humanhash: vermont-cold-equal-stream
File name:file
Download: download sample
Signature MarsStealer
Create hunting rule
File size:2'127'360 bytes
First seen:2024-11-06 12:21:17 UTC
Last seen:2024-11-06 15:00:31 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 2eabe9054cad5152567f0699947a2c5b (2'852 x LummaStealer, 1'312 x Stealc, 1'026 x Healer)
ssdeep 49152:lPPXDKujeA8ks3q6mgLYzLF4VRneX1BVi8C9fuMxl4GUVwB9RK:5PXaA8kvoG43nDHfuMxl4twB9RK
TLSH T1A1A5333F2EB5CDD0E559A9789F9B31E2CFE4659B38B09BB211003E30D8D6A985F01991
TrID 27.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
20.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
18.6% (.EXE) Win32 Executable (generic) (4504/4/1)
8.5% (.ICL) Windows Icons Library (generic) (2059/9)
8.3% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter Bitsight
Tags:exe MarsStealer


Avatar
Bitsight
url: http://185.215.113.16/steam/random.exe

Intelligence

File Origin
# of uploads :
29
# of downloads :
428
Origin country :
US US
Vendor Threat Intelligence
Malware family:
amadey
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-11-06 12:22:09 UTC
Tags:
stealer stealc loader themida rust amadey botnet lumma possible-phishing
Link:
https://app.any.run/tasks/af2a6cb1-7273-4a02-bad6-fa8e62c1cb9a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.BackdoorX-gen.14621.22393.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=672b5f7549e92a05dde377ca
Tags:
powershell vmdetect autorun lien
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file
Running batch commands
Creating a process with a hidden window
Launching a process
Сreating synchronization primitives
Searching for analyzing tools
Connection attempt to an infection source
Sending an HTTP GET request to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-vm microsoft_visual_cc packed packed packer_detected
Link:
https://www.filescan.io/uploads/672b5f7062256bfa90788b08/reports/df93f42e-c502-45aa-afce-9e73160a07ae/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/d238402f837f3ca9b607245fff0f8390398f842344664e3d5af2ab33f8cbc016
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:
Malicious
Link:
https://analyze.intezer.com/analyses/e533dd17-a9cd-4a41-884d-73a66cf7ea04
Result
Threat name:
Stealc
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1550089
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Attempt to bypass Chrome Application-Bound Encryption
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found malware configuration
Hides threads from debuggers
Machine Learning detection for sample
Monitors registry run keys for changes
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Sample uses string decryption to hide its real strings
Suricata IDS alerts for network traffic
Tries to detect process monitoring tools (Task Manager, Process Explorer etc.)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Tries to detect virtualization through RDTSC time measurements
Tries to evade debugger and weak emulator (self modifying code)
Tries to harvest and steal browser information (history, passwords, etc)
Yara detected Powershell download and execute
Yara detected Stealc
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1550089 Sample: file.exe Startdate: 06/11/2024 Architecture: WINDOWS Score: 100 48 Suricata IDS alerts for network traffic 2->48 50 Found malware configuration 2->50 52 Antivirus / Scanner detection for submitted sample 2->52 54 8 other signatures 2->54 7 file.exe 17 2->7         started        12 msedge.exe 8 2->12         started        process3 dnsIp4 38 185.215.113.206, 49704, 49730, 80 WHOLESALECONNECTIONSNL Portugal 7->38 40 127.0.0.1 unknown unknown 7->40 32 C:\ProgramData\chrome.dll, PE32 7->32 dropped 56 Detected unpacking (changes PE section rights) 7->56 58 Attempt to bypass Chrome Application-Bound Encryption 7->58 60 Tries to detect sandboxes and other dynamic analysis tools (window names) 7->60 62 6 other signatures 7->62 14 msedge.exe 2 10 7->14         started        17 chrome.exe 8 7->17         started        20 WerFault.exe 19 16 7->20         started        23 msedge.exe 12->23         started        file5 signatures6 process7 dnsIp8 64 Monitors registry run keys for changes 14->64 25 msedge.exe 14->25         started        34 192.168.2.5, 443, 49703, 49704 unknown unknown 17->34 36 239.255.255.250 unknown Reserved 17->36 27 chrome.exe 17->27         started        30 C:\ProgramData\Microsoft\...\Report.wer, Unicode 20->30 dropped file9 signatures10 process11 dnsIp12 42 play.google.com 142.250.74.206, 443, 49722, 49731 GOOGLEUS United States 27->42 44 www.google.com 172.217.18.100, 443, 49708, 49711 GOOGLEUS United States 27->44 46 2 other IPs or domains 27->46
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/d238402f837f3ca9b607245fff0f8390398f842344664e3d5af2ab33f8cbc016
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d238402f837f3ca9b607245fff0f8390398f842344664e3d5af2ab33f8cbc016/
Threat name:
Win32.Trojan.Stealerc
Create hunting rule
Status:
Malicious
First seen:
2024-11-06 12:22:07 UTC
File Type:
PE (Exe)
AV detection:
27 of 38 (71.05%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2i4eal4dp46ktnqherp76d4dsa4y7bbdirte4pk26kvth6glyala._file
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc botnet:tale discovery evasion stealer
Link:
https://tria.ge/reports/241106-pjwxzazepf/
Behaviour
Suspicious behavior: EnumeratesProcesses
System Location Discovery: System Language Discovery
Suspicious use of NtSetInformationThreadHideFromDebugger
Checks BIOS information in registry
Identifies Wine through registry keys
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Stealc
Stealc family
Malware Config
C2 Extraction:
http://185.215.113.206
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/8e26ba2c-ba47-4dbf-ac81-a5ae93c66a2d
Unpacked files
SH256 hash:
81a4f37c5495800b7cc46aea6535d9180dadb5c151db6f1fd1968d1cd8c1eeb4
MD5 hash:
eda18948a989176f4eebb175ce806255
SHA1 hash:
ff22a3d5f5fb705137f233c36622c79eab995897
Link:
https://www.unpac.me/results/0e79b081-40b8-4d3e-ab12-61ab1c20dfa6/
SH256 hash:
8fdbc34b7df4b88d999c3e50d2e927a00ff39c4fc6b633fdac03128dabc8a75a
MD5 hash:
ff6cd2fd85d7a61adf1a276cbdb1ef78
SHA1 hash:
b53f0e9961f5699a85412558c057918d82303ded
Detections:
stealc
Create hunting rule
win_stealc_w0
Create hunting rule
win_stealc_a0
Create hunting rule
detect_Mars_Stealer
Create hunting rule
Link:
https://www.unpac.me/results/0e79b081-40b8-4d3e-ab12-61ab1c20dfa6/
SH256 hash:
d238402f837f3ca9b607245fff0f8390398f842344664e3d5af2ab33f8cbc016
MD5 hash:
d75cd72f7154399e60b3a3b1801512ed
SHA1 hash:
1808e1df096edf223855c2269562b93e031ca3b0
Link:
https://www.unpac.me/results/0e79b081-40b8-4d3e-ab12-61ab1c20dfa6/
Please note that we are no longer able to provide a coverage score for Virus Total.

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:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques

File information

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

Web download

MarsStealer

Executable exe d238402f837f3ca9b607245fff0f8390398f842344664e3d5af2ab33f8cbc016

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3273391/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical

Comments