MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fdf6b1ad42f7b3c555a9cfef369fa1467facd71efd10d0e287ce2f32f77e5551. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fdf6b1ad42f7b3c555a9cfef369fa1467facd71efd10d0e287ce2f32f77e5551
SHA3-384 hash: 605f704e1c85d21b0af39968272d70f9051844243d78ea1b5e6e8bef9dde76e02a12e7150f5a67a0bf41b99e75ec0b1f
SHA1 hash: cac9b22132b0a6709c7305f1667f8bbae721591c
MD5 hash: ce2f670b45f737df2148434194731fde
humanhash: steak-montana-sierra-tango
File name:ce2f670b45f737df2148434194731fde.exe
Download: download sample
Signature MarsStealer
Create hunting rule
File size:280'576 bytes
First seen:2023-10-07 07:31:04 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 1329a392a27bb099e5f0069fb4bf5f7f (5 x Smoke Loader, 3 x Tofsee, 2 x CoinMiner)
ssdeep 3072:340vH9Z0C8PpLhD+i6onscMzWrWfanlPd1fXo+2:7VZj8PdhCi/scMzWrWynlPd1Q+
Threatray 137 similar samples on MalwareBazaar
TLSH T1E5548E03A3E0BC65E5224B329E2DC1E5772EF5608E69B76B27485F2F08B11F2D663711
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 70d0ded2c9d9d2dd (1 x Smoke Loader, 1 x MarsStealer)
Reporter abuse_ch
Tags:exe MarsStealer

Intelligence

File Origin
# of uploads :
1
# of downloads :
291
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-10-07 06:34:32 UTC
Tags:
onlylogger gcleaner loader
Link:
https://app.any.run/tasks/6da808c6-1893-4b2e-8590-c9b7de4ec389

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.BotX-gen.13434.10873.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Sending a custom TCP request
Query of malicious DNS domain
Sending an HTTP GET request to an infection source
Gathering data
Gathering data
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/fdf6b1ad42f7b3c555a9cfef369fa1467facd71efd10d0e287ce2f32f77e5551
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/9307caa3-073b-4457-a763-fc5571d854a4
Result
Threat name:
Stealc
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1321401
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found evasive API chain (may stop execution after checking locale)
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Snort IDS alert for network traffic
Yara detected Stealc
Behaviour
Behavior Graph:
Download SVG
Detection:
stealc
Create hunting rule
Link:
https://mwdb.cert.pl/sample/fdf6b1ad42f7b3c555a9cfef369fa1467facd71efd10d0e287ce2f32f77e5551/
Threat name:
Win32.Trojan.SmokeLoader
Create hunting rule
Status:
Malicious
First seen:
2023-10-07 07:32:05 UTC
File Type:
PE (Exe)
Extracted files:
22
AV detection:
17 of 23 (73.91%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7x3ldlkc66z4kvnjz7xtnh5biz72zvy67uinbyuhzyxtf536kviq._file
Verdict:
malicious
Similar samples:
12cd64a6d63eb4c7ae10c011a65ea69f9ce0022197d39cb454cc63fc7e147f78
MarsStealer
210f3a67334a82f57a0bc0a074743d76149ce725bb620e496f928604f3572d23
MarsStealer
253f77fb5a41cc96f4cd38f7dc12c9c258a942c88c167b83757b36b62c08600b
MarsStealer
48aa1d4be25d9800400fa2ab7209e5a5593799524b5794cb8d028b02c62ae6ed
MarsStealer
4d5bab7147d74203c4fd47583c7ac3e3b1427bfac80a22c4473700cab181cbb6
MarsStealer
547aa3afffb1c692c296484c1d1225abc67a95baa4f5e46da81c5939b6d137e6
MarsStealer
87c9f6da1bde1c4762477b55c8fbd4f821464f23669c08eef59df00adc438a37
MarsStealer
c3845df0b004780912e12c0cb235b685c47006e67787100326c5f787d4772baf
MarsStealer
f36c198674bf407f576632eec261c78ceacde3532efaba78567e4c8a2850c499
MarsStealer
f6559e9de5695802ff471ea1769587e6f93aa9a3c1e29451b4b304886ca8489a
MarsStealer
+ 127 additional samples on MalwareBazaar
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc discovery stealer
Link:
https://tria.ge/reports/231007-jcdvxscb36/
Behaviour
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Checks installed software on the system
Downloads MZ/PE file
Stealc
Malware Config
C2 Extraction:
http://aidandylan.top
Unpacked files
SH256 hash:
fca68d95a6ac7335900e37e651c90069b92023b7b6e157d9a159dc2796fc2915
MD5 hash:
61703199e34859634509e8be9fc00641
SHA1 hash:
c292cfc70ca34c83431905a36767d715c9403405
Detections:
stealc
Create hunting rule
Link:
https://www.unpac.me/results/947834bd-5b61-4ae2-8cc2-dc417075e981/
Parent samples :
f6559e9de5695802ff471ea1769587e6f93aa9a3c1e29451b4b304886ca8489a
253f77fb5a41cc96f4cd38f7dc12c9c258a942c88c167b83757b36b62c08600b
e2e015230a608f7b25b7aa03527afcde2508d1d83616319c4335c0857dc5c6c6
c88f359aba9e44593d5143bab7b3f9f3937585deeffbedbbba8422dacbe5908a
b8c32595ccf7f1e5cf6a35d3df118d89b1c6f6483312b2b525391341c51bfa1a
b6a67c6b9085376403d3e61df6e24b533112200bcfa7a0222ee6c0fd9722d0e4
5aca54a00787e46bde92e8cbba6b22ce1c57358e429cec3dfc8d08966585c2b8
5949d22b778e3da3407291c13811dace35877d71cd31c8a921c855969aa3f272
af8ef199d088c512183f056c8c1415702a0882709d024439ff8b9c9b08f95d57
fdf6b1ad42f7b3c555a9cfef369fa1467facd71efd10d0e287ce2f32f77e5551
497cd01d63385749dcb5b83cfcda8f33b8099d4ce013a9184a3898b0222ad606
a86fe864b7d6fa84c9f36c398f74e5a0441d1bb935dedeefd4c100fd4fe1ff4d
a860db0e53e2bbc0cf94b5eeb2695d236026db15ee2ce3b831438b6cbee66a53
SH256 hash:
fdf6b1ad42f7b3c555a9cfef369fa1467facd71efd10d0e287ce2f32f77e5551
MD5 hash:
ce2f670b45f737df2148434194731fde
SHA1 hash:
cac9b22132b0a6709c7305f1667f8bbae721591c
Link:
https://www.unpac.me/results/947834bd-5b61-4ae2-8cc2-dc417075e981/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/fdf6b1ad42f7/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/fdf6b1ad42f7b3c555a9cfef369fa1467facd71efd10d0e287ce2f32f77e5551

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: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.

Web download

MarsStealer

Executable exe fdf6b1ad42f7b3c555a9cfef369fa1467facd71efd10d0e287ce2f32f77e5551

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2716168/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2716132/

Comments