MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 651802363bfec1ee27819b8a7c2b48c68254ba6f75fb48c2b168c779615651f7. 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: 14


Intelligence 14 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 651802363bfec1ee27819b8a7c2b48c68254ba6f75fb48c2b168c779615651f7
SHA3-384 hash: 4b0268397e71a87ebba166fe67104fc370e54ab08f7e78e050e335b00e08d437e96babb89ae8ccd6ee1f35c365d8f500
SHA1 hash: 2b778025882a39acd2783c2d02a85db9ba41ac66
MD5 hash: b5f7ab6ce9b437e8cfa0d18fa1d5b6fb
humanhash: oklahoma-jupiter-april-winner
File name:file
Download: download sample
Signature MarsStealer
Create hunting rule
File size:263'168 bytes
First seen:2023-08-23 22:25:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 822b4d52a36db17b94b762d3d05b0a48 (1 x RedLineStealer, 1 x MarsStealer, 1 x Tofsee)
ssdeep 6144:UjXWLpt2Khy+UbLdRTe551NcSvgQ/T1R:UjXWVt2KhoS55Ms1
TLSH T13644CF213AE2D0B2D4D745345924CAE069BFB8735BA4899B33182B7F3E70391976E317
TrID 37.3% (.EXE) Win64 Executable (generic) (10523/12/4)
17.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
16.0% (.EXE) Win32 Executable (generic) (4505/5/1)
7.3% (.ICL) Windows Icons Library (generic) (2059/9)
7.2% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 000818080a060400 (1 x MarsStealer)
Reporter andretavare5
Tags:exe MarsStealer


Avatar
andretavare5
Sample downloaded from http://andrewjohnson.top/calc.exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
293
Origin country :
US US
Vendor Threat Intelligence
Malware family:
redline
Create hunting rule
ID:
1
File name:
https://martvl.com/download/Setup_pass1234.7z
Verdict:
Malicious activity
Analysis date:
2023-08-23 20:27:48 UTC
Tags:
privateloader evasion opendir risepro stealer stealc redline fabookie loader amadey trojan smoke tofsee
Link:
https://app.any.run/tasks/a7e5f7a7-67c2-4814-8869-aa7f49f487b4

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/444358/
Detection(s):
Win.Packer.pkr_ce1a-9980177-0
Create hunting rule

Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Running batch commands
Creating a process with a hidden window
Launching a process
Launching the default Windows debugger (dwwin.exe)
Result
Malware family:
n/a
Score:
  9/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/108401/overview
Behaviour
MalwareBazaar
CPUID_Instruction
MeasuringTime
SystemUptime
EvasionGetTickCount
CheckCmdLine
EvasionQueryPerformanceCounter
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware packed xpack
Link:
https://www.filescan.io/uploads/64e6877b2a89064e5598b48a/reports/67b7a066-26e2-458e-bbe7-f73aaf03e097/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/651802363bfec1ee27819b8a7c2b48c68254ba6f75fb48c2b168c779615651f7
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5c41a3a3-d681-41e1-959c-cffcff832582
Result
Threat name:
Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1296226
Signature
Antivirus detection for URL or domain
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found evasive API chain (may stop execution after checking locale)
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Self deletion via cmd or bat file
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
Tries to steal Mail credentials (via file / registry access)
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/651802363bfec1ee27819b8a7c2b48c68254ba6f75fb48c2b168c779615651f7/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mumaenr373a64j4btofhyk2iy2bfjotpox5urqvrnddxsykwkh3q._file
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc spyware stealer
Link:
https://tria.ge/reports/230823-2cg7fsga45/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Accesses cryptocurrency files/wallets, possible credential harvesting
Deletes itself
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Stealc
Unpacked files
SH256 hash:
dc7f3a22dabb560428ed5f62eb881c3643f85bdad454befadba0c051904fce0f
MD5 hash:
d9c8df9237d3d825d8cd7cf225322037
SHA1 hash:
b3fd98f0d6d93898c1f870555944e78bff54e77e
Link:
https://www.unpac.me/results/64cd08ec-a044-45d9-86b2-06db88b7a4b9/
SH256 hash:
651802363bfec1ee27819b8a7c2b48c68254ba6f75fb48c2b168c779615651f7
MD5 hash:
b5f7ab6ce9b437e8cfa0d18fa1d5b6fb
SHA1 hash:
2b778025882a39acd2783c2d02a85db9ba41ac66
Link:
https://www.unpac.me/results/64cd08ec-a044-45d9-86b2-06db88b7a4b9/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/651802363bfe/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/651802363bfec1ee27819b8a7c2b48c68254ba6f75fb48c2b168c779615651f7

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:detect_Mars_Stealer
Create hunting rule
Author:@malgamy12
Description:detect_Mars_Stealer
Rule name:infostealer_win_stealc_standalone
Create hunting rule
Description:Find standalone Stealc sample based on decryption routine or characteristic strings
Reference:https://blog.sekoia.io/stealc-a-copycat-of-vidar-and-raccoon-infostealers-gaining-in-popularity-part-1/
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:Windows_Trojan_Smokeloader_3687686f
Create hunting rule
Author:Elastic Security
Rule name:win_stealc_w0
Create hunting rule
Author:crep1x
Description:Find standalone Stealc sample based on decryption routine or characteristic strings
Reference:https://blog.sekoia.io/stealc-a-copycat-of-vidar-and-raccoon-infostealers-gaining-in-popularity-part-1/

File information

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

  
Dropped by
PrivateLoader
  
Delivery method
Distributed via drive-by
  
URLhaus
https://urlhaus.abuse.ch/url/2705935/
Cape
Cape
https://www.capesandbox.com/analysis/444358/

Comments