MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c098864e101fb7710c9200e6531124d1f47111989454be017205e0ac75e9887b. 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



Worm.Mofksys


Vendor detections: 13


Intelligence 13 IOCs YARA 5 File information Comments

SHA256 hash: c098864e101fb7710c9200e6531124d1f47111989454be017205e0ac75e9887b
SHA3-384 hash: daf2f5bf0bf345030e269f0990513a3a60628243b58058ef58a069203092d02db1d2e7d931362455bc020f96b93fbaf9
SHA1 hash: b7ddbc8ccf67fb9698c29a9eacb8a8450df579ba
MD5 hash: f171ed47c4f1835205e71f7064c12286
humanhash: happy-south-kitten-glucose
File name:svchost.exe
Download: download sample
Signature Worm.Mofksys
File size:211'805 bytes
First seen:2025-11-23 09:29:39 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 98f67c550a7da65513e63ffd998f6b2e (60 x Worm.Mofksys, 21 x SnakeKeylogger, 13 x MassLogger)
ssdeep 6144:zvEN2U+T6i5LirrllHy4HUcMQY6wYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYI:zENN+T5xYrllrU7QY6g
Threatray 169 similar samples on MalwareBazaar
TLSH T17F24E83BEA10602EDB638BF0986662A676366D221FC09C8B5391BB573471743B1F531F
TrID 58.0% (.EXE) Win32 Executable Microsoft Visual Basic 6 (82067/2/8)
22.0% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
7.4% (.EXE) Win64 Executable (generic) (10522/11/4)
3.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
3.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter Hexastrike
Tags:exe Worm.Mofksys

Intelligence


File Origin
# of uploads :
1
# of downloads :
22
Origin country :
IE IE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
svchost.exe
Verdict:
No threats detected
Analysis date:
2025-11-23 10:22:33 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Creating a file in the Windows subdirectories
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Creating a process with a hidden window
DNS request
Connection attempt
Setting a keyboard event handler
Setting a global event handler
Creating a file in the %AppData% directory
Setting a single autorun event
Launching the process to create tasks for the scheduler
Enabling autorun
Enabling a "Do not show hidden files" option
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
explorer lolbin overlay overlay visual_basic
Result
Gathering data
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Visual Basic Visual Basic 6 Win 32 Exe x86
Threat name:
Win32.Worm.Mofksys
Status:
Malicious
First seen:
2025-11-23 06:31:19 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
35 of 36 (97.22%)
Threat level:
  5/5
Result
Malware family:
mofksys
Score:
  10/10
Tags:
family:mofksys defense_evasion discovery persistence worm
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Windows directory
Adds Run key to start application
Executes dropped EXE
Boot or Logon Autostart Execution: Active Setup
Detects Mofksys worm
Modifies WinLogon for persistence
Modifies visibility of hidden/system files in Explorer
Mofksys
Mofksys family
Verdict:
Malicious
Tags:
trojan Win.Malware.Swisyn-7610494-0
YARA:
Windows_Generic_Threat_2bb7fbe3
Unpacked files
SH256 hash:
c098864e101fb7710c9200e6531124d1f47111989454be017205e0ac75e9887b
MD5 hash:
f171ed47c4f1835205e71f7064c12286
SHA1 hash:
b7ddbc8ccf67fb9698c29a9eacb8a8450df579ba
Detections:
win_mofksys_auto
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:ProtectSharewareV11eCompservCMS
Author:malware-lu
Rule name:SEH__vba
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SUSP_Imphash_Mar23_2
Author:Arnim Rupp (https://github.com/ruppde)
Description:Detects imphash often found in malware samples (Zero hits with with search for 'imphash:x p:0' on Virustotal)
Reference:Internal Research
Rule name:Windows_Generic_Threat_2bb7fbe3
Author:Elastic Security
Rule name:win_mofksys_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.mofksys.

File information


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

Comments