MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d4bf23afb7a9ceec28c766dfea93cf0cab3d21c8dcab9c02de6f8cca3d97578b. 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



Koceg


Vendor detections: 15


Intelligence 15 IOCs YARA 10 File information Comments

SHA256 hash: d4bf23afb7a9ceec28c766dfea93cf0cab3d21c8dcab9c02de6f8cca3d97578b
SHA3-384 hash: 25556f55107a12639ab583bbb8bc44b60012ee0134ae183eaafd81f666afc30c8b28b36cca44b6d05a4ceef3e7298b44
SHA1 hash: 1bfcebfecd3a135134f2c8ebe74005fa84d6d4f4
MD5 hash: f2f3792753ec8efcfaa191c32c7af94c
humanhash: tennessee-vermont-music-maine
File name:autorun.exe
Download: download sample
Signature Koceg
File size:551'115 bytes
First seen:2026-06-05 17:35:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 08b656407b8d307979dc72c3fcc683a8 (15 x Koceg)
ssdeep 6144:ACZlWG0GN7xOz2x23dNs4U1JOhtpWhkPWPbGkOCqAQbgmYblg:ACCs5xOKx2Nhfpn+jGBCqAQb7eg
Threatray 3 similar samples on MalwareBazaar
TLSH T123C4230011E6DED6E092723107D32BF13E552F3785E5AF950BFA6AE11BA39CC48C249B
TrID 34.7% (.EXE) UPX compressed Win32 Executable (27066/9/6)
34.1% (.EXE) Win32 EXE Yoda's Crypter (26569/9/4)
8.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.7% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter qemped
Tags:exe Koceg

Intelligence


File Origin
# of uploads :
1
# of downloads :
124
Origin country :
ID ID
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
_d4bf23afb7a9ceec28c766dfea93cf0cab3d21c8dcab9c02de6f8cca3d97578b.exe
Verdict:
Malicious activity
Analysis date:
2026-06-05 17:36:59 UTC
Tags:
auto-reg

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
vmdetect socks
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Enabling the 'hidden' option for recently created files
Launching a process
Creating a file in the Windows subdirectories
Creating a file
Setting a global event handler
DNS request
Connection attempt
Restart of the analyzed sample
Moving a file to the Windows subdirectory
Moving a recently created file
Deleting a recently created file
Creating a window
Replacing files
Creating a file in the mass storage device
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun for a service
Enabling autorun with the shell\open\command registry branches
Enabling autorun
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm microsoft_visual_cc overlay packed packed similar-threat upx
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-06-05T08:12:00Z UTC
Last seen:
2026-06-05T08:26:00Z UTC
Hits:
~10
Detections:
HEUR:Trojan.Win32.Generic HEUR:Trojan.Win32.Convagent.gen Trojan.Win32.Agent.sb Trojan-Dropper.Win32.Dinwod.sbb Trojan-Dropper.Win32.Daws.sbbs HEUR:Worm.Win32.AutoRun.gen HEUR:Trojan.Win32.Nosok.gen
Gathering data
Verdict:
Malicious
Threat:
Trojan-Dropper.Win32.Dinwod
Threat name:
Win32.Worm.Mandaph
Status:
Malicious
First seen:
2026-06-05 12:39:00 UTC
File Type:
PE (Exe)
AV detection:
34 of 36 (94.44%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
adware discovery persistence stealer upx
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
UPX packed file
Adds Run key to start application
Enumerates connected drives
Installs/modifies Browser Helper Object
Modifies WinLogon
Executes dropped EXE
Modifies system executable filetype association
Drops file in Drivers directory
Sets service image path in registry
Modifies WinLogon for persistence
Unpacked files
SH256 hash:
d4bf23afb7a9ceec28c766dfea93cf0cab3d21c8dcab9c02de6f8cca3d97578b
MD5 hash:
f2f3792753ec8efcfaa191c32c7af94c
SHA1 hash:
1bfcebfecd3a135134f2c8ebe74005fa84d6d4f4
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:FreddyBearDropper
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:Suspicious_Process
Author:Security Research Team
Description:Suspicious process creation
Rule name:SUSP_XORed_MSDOS_Stub_Message
Author:Florian Roth
Description:Detects suspicious XORed MSDOS stub message
Reference:https://yara.readthedocs.io/en/latest/writingrules.html#xor-strings
Rule name:UPX290LZMAMarkusOberhumerLaszloMolnarJohnReiser
Author:malware-lu
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Author:malware-lu
Rule name:UPXv20MarkusLaszloReiser
Author:malware-lu
Rule name:upx_3
Author:Kevin Falcoz
Description:UPX 3.X
Rule name:upx_largefile
Author:k3nr9
Rule name:VECT_Ransomware
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.
Rule name:vmdetect
Author:nex
Description:Possibly employs anti-virtualization techniques

File information


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

Comments