MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4c9931f7d18931032a709727652b9781a1565ef91e35e041d1dfa2e4ae15d2e1. 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


Mofksys


Vendor detections: 11


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

SHA256 hash: 4c9931f7d18931032a709727652b9781a1565ef91e35e041d1dfa2e4ae15d2e1
SHA3-384 hash: 4ac79f18b67ed9ce8f4dd67a26b2ce01bafa4fc008d4bf40bba424834d86ce9c6dd9da82be245614d0c95a268356fb8f
SHA1 hash: f907addc387e58887447694731c5bc9b1730b7f7
MD5 hash: 448819c0147a9e20732ea911f698a196
humanhash: lima-potato-ten-saturn
File name:svchost.exe
Download: download sample
Signature Mofksys
Create hunting rule
File size:423'694 bytes
First seen:2025-11-23 09:21:51 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 3072:QvEfVUzSLhIVbV6i5LirrlZrHyrUHUckoMQ2RN6ux6tqtvB1TgRo:QvEN2U+T6i5LirrllHy4HUcMQY6NqHR
TLSH T1A994091FBF98202ED567E2F09C17BA95B9157E628AC09D0B26917F0A3071193B4F934F
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 Mofksys

Intelligence

File Origin
# of uploads :
1
# of downloads :
12
Origin country :
IE IE
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/40383/
Detection(s):
Win.Malware.Swisyn-7610494-0
Create hunting rule

Win.Virus.Sality-6335700-2
Create hunting rule

Win.Malware.Swisyn-9942393-0
Create hunting rule

Win.Trojan.VBGeneric-6735885-0
Create hunting rule

Win.Virus.Sality-6747602-0
Create hunting rule

Win.Malware.Swisyn-6803865-0
Create hunting rule

Win.Trojan.Kazy-304
Create hunting rule

PUA.Win.Packer.ProtectSharewar-2
Create hunting rule

PUA.Win.Packer.ProtectSharewar-3
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6922dabab6ee81118d2c9ca2
Tags:
injection sharew obfusc
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
Setting a keyboard event handler
Setting a global event handler
Creating a file in the %AppData% directory
DNS request
Connection attempt
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
Link:
https://www.filescan.io/uploads/6922d771f96b58f0dc80b233/reports/7bac766f-a0e5-4a34-b4f0-315edfab763b/overview
Verdict:
Malicious
Labled as:
Trojan.Swisyn
Link:
https://www.hybrid-analysis.com/sample/4c9931f7d18931032a709727652b9781a1565ef91e35e041d1dfa2e4ae15d2e1
Result
Gathering data
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4c9931f7d18931032a709727652b9781a1565ef91e35e041d1dfa2e4ae15d2e1
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Visual Basic Visual Basic 6 Win 32 Exe x86
Link:
https://app.malva.re/file/448819c0147a9e20732ea911f698a196
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4c9931f7d18931032a709727652b9781a1565ef91e35e041d1dfa2e4ae15d2e1/
Threat name:
Win32.Trojan.Golsys
Create hunting rule
Status:
Malicious
First seen:
2025-11-23 07:51:22 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
33 of 36 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jsmtd56rreyqgktqs4twkk4xqgqvmxxzdy26aqor36rojlqv2lqq._file
Result
Malware family:
mofksys
Create hunting rule
Score:
  10/10
Tags:
family:mofksys defense_evasion discovery persistence worm
Link:
https://tria.ge/reports/251123-lqlh2aykfj/
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
Link:
https://app.threat.zone/submission/a9920706-4f2b-4650-93ee-17a198d5c8a4
Unpacked files
SH256 hash:
4c9931f7d18931032a709727652b9781a1565ef91e35e041d1dfa2e4ae15d2e1
MD5 hash:
448819c0147a9e20732ea911f698a196
SHA1 hash:
f907addc387e58887447694731c5bc9b1730b7f7
Link:
https://www.unpac.me/results/cde69b99-6c76-4f9b-8cbd-98e804c57463/
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/4c9931f7d18931032a709727652b9781a1565ef91e35e041d1dfa2e4ae15d2e1

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
Create hunting rule
Author:malware-lu
Rule name:SEH__vba
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SUSP_Imphash_Mar23_2
Create hunting rule
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
Create hunting rule
Author:Elastic Security

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/40383/

Comments