MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 41c8857bea496f71e314ba368b08e9575093f544f84a3517f7391bb7e0bf956b. 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


MysticStealer


Vendor detections: 11


Intelligence 11 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 41c8857bea496f71e314ba368b08e9575093f544f84a3517f7391bb7e0bf956b
SHA3-384 hash: 717ac74111a4d75c98f4f9afa3f51e1bf945c73ff6ec719a0d6e7a21953528d880412dd809c54bdb615e8e9d936c9c50
SHA1 hash: 145a09b4e23ab7df89ba7ba28b8eaabdc62e0c6b
MD5 hash: 300a739233fbb3231503d118ca8e1b77
humanhash: skylark-fish-twelve-seventeen
File name:file
Download: download sample
Signature MysticStealer
Create hunting rule
File size:373'248 bytes
First seen:2023-09-23 17:50:52 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 383ebf01ac19979467e97d3debc83542 (19 x RedLineStealer, 19 x MysticStealer, 15 x Backdoor.TeamViewer)
ssdeep 6144:O+46fuYXChoQTjlFgLuCY1dRuAOazlGMaB960xlQs3xuEM/Rlsvw8y0:OrYzXChdTbv1bu8lGMaTtBk/Rlsvw8y
TLSH T15C84CF2175D0BD73E6F0113A65F04A7D5B39B8710F7149DBEBE34B2D8A22AD099223C6
TrID 32.2% (.EXE) Win64 Executable (generic) (10523/12/4)
20.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
13.7% (.EXE) Win32 Executable (generic) (4505/5/1)
6.2% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter andretavare5
Tags:exe MysticStealer


Avatar
andretavare5
Sample downloaded from http://77.91.68.239/dark/nsi85.exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
278
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-09-23 17:53:32 UTC
Tags:
stealc stealer
Link:
https://app.any.run/tasks/eb98bd98-fbdf-4578-914b-2e13ac304a25

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/450762/
Detection(s):
SecuriteInfo.com.Trojan.KillProc2.21513.9271.30970.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Сreating synchronization primitives
Creating a file in the %temp% directory
Launching the default Windows debugger (dwwin.exe)
Forced shutdown of a system process
Unauthorized injection to a system process
Gathering data
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
control greyware lolbin
Link:
https://www.filescan.io/uploads/650f2586f1b40cb0d6213a2c/reports/07ef5635-d3e0-4390-928f-3ab8ba4a425f/overview
Verdict:
Malicious
Labled as:
Zusy.Generic
Link:
https://www.hybrid-analysis.com/sample/41c8857bea496f71e314ba368b08e9575093f544f84a3517f7391bb7e0bf956b
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/f4e3b93a-693b-468b-aa3c-0ddf8b662ede
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1313321
Signature
Allocates memory in foreign processes
Antivirus detection for URL or domain
Contains functionality to inject code into remote processes
Injects a PE file into a foreign processes
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Writes to foreign memory regions
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/41c8857bea496f71e314ba368b08e9575093f544f84a3517f7391bb7e0bf956b/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2023-09-23 17:51:04 UTC
File Type:
PE (Exe)
AV detection:
17 of 23 (73.91%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=iheik67kjfxxdyyuxi3iwchjk5ijh5ke7bfdkf7xhen3pyf7svvq._file
Result
Malware family:
mystic
Create hunting rule
Score:
  10/10
Tags:
family:mystic stealer
Link:
https://tria.ge/reports/230923-we5smshb9x/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Mystic
Unpacked files
SH256 hash:
cce9c9a5d6fb03e56850d3bf4f4c3bb18ab3768bcb6980f60151ce1ad1c7f5a5
MD5 hash:
9819ed6450881db3bc807fe108292d86
SHA1 hash:
e02a0a981d96c6a698399a08f2d30be0abb885a5
Link:
https://www.unpac.me/results/14b09fcb-8c4d-49b1-8ba7-e277abc8356b/
SH256 hash:
41c8857bea496f71e314ba368b08e9575093f544f84a3517f7391bb7e0bf956b
MD5 hash:
300a739233fbb3231503d118ca8e1b77
SHA1 hash:
145a09b4e23ab7df89ba7ba28b8eaabdc62e0c6b
Link:
https://www.unpac.me/results/14b09fcb-8c4d-49b1-8ba7-e277abc8356b/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/41c8857bea49/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/41c8857bea496f71e314ba368b08e9575093f544f84a3517f7391bb7e0bf956b

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:NET
Create hunting rule
Author:malware-lu

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/2713520/
Cape
Cape
https://www.capesandbox.com/analysis/450762/

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