MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 04789bb1e63b81997e53786d1f19a6dde477b29b54ad5bcb12aeb9bce3d0f72b. 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

DarkComet

Vendor detections: 17

Intelligence 17 IOCs YARA 9 File information Comments

SHA256 hash:	04789bb1e63b81997e53786d1f19a6dde477b29b54ad5bcb12aeb9bce3d0f72b
SHA3-384 hash:	6ff0425dc8b6ee5003034d6ea22a4ef55f33e246e0ed4ec4916d70ba107e0dc704811486cbb1283fab4d10cd9dde3423
SHA1 hash:	aff3f945c11837cfa8ba4da23057a86204e8932d
MD5 hash:	0e9b4f38f1c0f6a615e01bdb13a76baf
humanhash:	moon-finch-stairway-green
File name:	screen.exe
Download:	download sample
Signature	DarkComet Create hunting rule
File size:	674'304 bytes
First seen:	2022-09-18 15:52:29 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	e5b4359a3773764a372173074ae9b6bd (60 x DarkComet, 2 x njrat, 1 x NanoCore)
ssdeep	12288:+9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/h4:KZ1xuVVjfFoynPaVBUR8f+kN10EB6
Threatray	250 similar samples on MalwareBazaar
TLSH	T1A3E48E31F1808837D97219789C5F92E6982A7E202E39754B3AE62F4C5F3D6C239193D7
TrID	20.2% (.EXE) Win32 Executable Delphi generic (14182/79/4) 18.7% (.SCR) Windows screen saver (13101/52/3) 15.0% (.EXE) Win64 Executable (generic) (10523/12/4) 14.2% (.EXE) DOS Borland compiled Executable (generic) (10000/1/2) 9.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
Reporter	amogos123512
Tags:	Adware DarkComet exe malware pop-up troll Virus

amogos123512

virus

Intelligence

File Origin

# of uploads :

# of downloads :

856

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

darkcomet

ID:

File name:

screen.exe

Verdict:

Malicious activity

Analysis date:

2022-09-18 15:54:46 UTC

Tags:

trojan rat darkcomet

Link:

https://app.any.run/tasks/7bbf3f4a-e3b0-4648-8b8f-6e488a96a69b

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/311103/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Сreating synchronization primitives

Creating a window

Creating a file

Enabling the 'hidden' option for recently created files

Launching cmd.exe command interpreter

Creating a process with a hidden window

Launching a process

Enabling the 'hidden' option for analyzed file

Creating a process from a recently created file

Searching for the Windows task manager window

DNS request

Sending a custom TCP request

Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch

Blocking a possibility to launch for the Windows registry editor (regedit.exe)

Firewall traversal

Blocking the User Account Control

Blocking the Windows Security Center notifications

Blocking the Windows Security Center launch

Unauthorized injection to a recently created process by context flags manipulation

Enabling autorun

Result

Malware family:

n/a

Score:

6/10

Tags:

n/a

Link:

https://dragonfly.certego.net/analysis/38035/overview

Behaviour

MalwareBazaar

CheckScreenResolution

CheckCmdLine

Verdict:

Malicious

Threat level:

10/10

Confidence:

67%

Tags:

anti-vm darkcomet explorer.exe fingerprint greyware keylogger rat shell32.dll

Link:

https://www.filescan.io/uploads/63273effb564f001cc963345/reports/52ff94fc-46d0-4c46-b1bc-364ed12443c1/overview

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:

DarkComet

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/0d9ee393-7c19-490d-8043-8971c19cf1c2

Result

Threat name:

DarkComet

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1072513

Signature

Allocates memory in foreign processes

Antivirus / Scanner detection for submitted sample

Antivirus detection for dropped file

Changes security center settings (notifications, updates, antivirus, firewall)

Creates an undocumented autostart registry key

Disables the Windows registry editor (regedit)

Disables UAC (registry)

Disables windows user account control

Drops PE files to the document folder of the user

Injects a PE file into a foreign processes

Injects files into Windows application

Machine Learning detection for dropped file

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Uses cmd line tools excessively to alter registry or file data

Writes to foreign memory regions

Yara detected DarkComet

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/04789bb1e63b81997e53786d1f19a6dde477b29b54ad5bcb12aeb9bce3d0f72b/

Threat name:

Win32.Backdoor.DarkComet

Status:

Malicious

First seen:

2022-09-18 15:53:10 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

39 of 41 (95.12%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=ar4jxmpghoazs7stpbwr6gng3xshpmu3kswvxsysv243zy6q64vq._file

Verdict:

malicious

DarkComet

2e3876317e556f1e27c78f6a8e9448b6bda99f203f0b2ef219c52aa5a368d73a

DarkComet

37f6015c7f1fe0422149a7d3695222e17c32d4506baab716a5d650a3b7315535

DarkComet

c7786e3cb22e7a6794d63cd9858ac55429f2bc4942769bcc94ded89ca4f9f0fa

DarkComet

daf01c5114ac5dd2e6a52d4ce4174e19482ed9f4d0409d734bc3c39a29f48497

DarkComet

f848632cde166bb8288dfc4478c0b76c9026880d8fbb272e9ea91fdbc4ed6b65

DarkComet

+ 240 additional samples on MalwareBazaar

Result

Malware family:

darkcomet

Score:

10/10

Tags:

family:darkcomet botnet:guest16 evasion persistence rat trojan

Link:

https://tria.ge/reports/220918-tbmrjsbdh2/

Behaviour

Modifies registry class

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Views/modifies file attributes

Enumerates physical storage devices

Suspicious use of SetThreadContext

Adds Run key to start application

Checks computer location settings

Loads dropped DLL

Windows security modification

Disables RegEdit via registry modification

Executes dropped EXE

Sets file to hidden

Darkcomet

Modifies WinLogon for persistence

Modifies firewall policy service

Modifies security service

Windows security bypass

Malware Config

C2 Extraction:

sussysdfffdfff343.duckdns.org:1604

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/7ac26210-9a5b-44b2-a21b-160ced761e5e

Unpacked files

SH256 hash:

04789bb1e63b81997e53786d1f19a6dde477b29b54ad5bcb12aeb9bce3d0f72b

MD5 hash:

0e9b4f38f1c0f6a615e01bdb13a76baf

SHA1 hash:

aff3f945c11837cfa8ba4da23057a86204e8932d

Detections:

win_darkcomet_a0

win_darkcomet_auto

win_darkcomet_g0

Link:

https://www.unpac.me/results/c2deb34f-5522-4da9-80d8-7416b114a106/

Malware family:

DarkComet

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/04789bb1e63b/report/overview.html

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

DarkComet

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/04789bb1e63b81997e53786d1f19a6dde477b29b54ad5bcb12aeb9bce3d0f72b

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:	Intezer_Vaccine_DarkComet Create hunting rule
Author:	Intezer Labs
Description:	Automatic YARA vaccination rule created based on the file's genes
Reference:	https://analyze.intezer.com

Rule name:	Malware_QA_update Create hunting rule
Author:	Florian Roth
Description:	VT Research QA uploaded malware - file update.exe
Reference:	VT Research QA

Rule name:	Malware_QA_update_RID2DAD Create hunting rule
Author:	Florian Roth
Description:	VT Research QA uploaded malware - file update.exe
Reference:	VT Research QA

Rule name:	MALWARE_Win_DarkComet Create hunting rule
Author:	ditekSHen
Description:	Detects DarkComet

Rule name:	RansomwareTest3 Create hunting rule
Author:	Daoyuan Wu
Description:	Test Ransomware YARA rules

Rule name:	RansomwareTest4 Create hunting rule
Author:	Daoyuan Wu
Description:	Test Ransomware YARA rules

Rule name:	RansomwareTest5 Create hunting rule
Author:	Daoyuan Wu
Description:	Test Ransomware YARA rules

Rule name:	RAT_DarkComet Create hunting rule
Author:	Kevin Breen <kevin@techanarchy.net>
Description:	Detects DarkComet RAT
Reference:	http://malwareconfig.com/stats/DarkComet

Rule name:	win_darkcomet_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	autogenerated rule brought to you by yara-signator

File information

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

Delivery method

Other

Cape

https://www.capesandbox.com/analysis/311103/

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