MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6f08293219654fea6c04ef20b911c4b3d28029ae32b9bcfaa7278df56a059ede. 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: 9

Intelligence 9 IOCs YARA 6 File information Comments 1

SHA256 hash:	6f08293219654fea6c04ef20b911c4b3d28029ae32b9bcfaa7278df56a059ede
SHA3-384 hash:	2344b8a31ff8892e1ef073efb2804aea25f4fc7fb534f7fecbe5871b2ecfa9eb8c963d8b4158f4ac06f2a862db6941e3
SHA1 hash:	fedaf416dd8019a55657d8321d70e2d09c98c595
MD5 hash:	db08908582b5fadec29d5ea3c91b954a
humanhash:	orange-leopard-blue-sweet
File name:	1yyoRs4y38XZvNF9YQAk.exe
Download:	download sample
Signature	DarkComet Create hunting rule
File size:	674'308 bytes
First seen:	2021-05-05 11:27:33 UTC
Last seen:	2021-05-05 12:03:13 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	e5b4359a3773764a372173074ae9b6bd (60 x DarkComet, 2 x njrat, 1 x NanoCore)
ssdeep	12288:e9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/h9:qZ1xuVVjfFoynPaVBUR8f+kN10EBX
Threatray	107 similar samples on MalwareBazaar
TLSH	52E48E31F1808837D97219789C5F92E6982A7E202E39754B3AE62F4C5F3D6C239193D7
Reporter	starsSk87264403
Tags:	DarkComet

Intelligence

File Origin

# of uploads :

# of downloads :

958

Origin country :

n/a

Vendor Threat Intelligence

Detection:

DarkComet

Link:

https://www.capesandbox.com/analysis/150524/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating a file in the Windows subdirectories

Enabling the 'hidden' option for recently created files

Launching cmd.exe command interpreter

Creating a process with a hidden window

Launching a process

Creating a process from a recently created file

Enabling the 'hidden' option for analyzed file

Setting a keyboard event handler

DNS request

Connection attempt

Sending a UDP request

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

Forced shutdown of a system process

Enabling autorun

Unauthorized injection to a system process

Deleting of the original file

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.

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/6f08293219654fea6c04ef20b911c4b3d28029ae32b9bcfaa7278df56a059ede/

Threat name:

Win32.Backdoor.DarkComet

Status:

Malicious

First seen:

2021-05-02 17:36:44 UTC

AV detection:

46 of 47 (97.87%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=n4ecsmqzmvh6u3ae54qlseoewpjiaknogk43z6vhe6g7k2qft3pa._file

Verdict:

malicious

DarkComet

2fa59f06afb2e3c9bfa441137dbb4edeaec4c3c6ebf1fab6a7bf33cfa253a588

DarkComet

3c6591d78134de2a069db77e119498d7774373ae2f91f98dbac0458d01b17202

DarkComet

5270cd6488da8841fbe6f1fa6b91f7b27be14bfcd52d1f2f3925cc2973ef4944

DarkComet

54efc75509d102fe879aae2a49098bd2f05183502e0ee554a3f6c1a7a4367ad9

DarkComet

68625836043a2593ccabcca5e3d49a0331d64657ed28bec54ecf37246c25ab4c

DarkComet

8b5b38085f12d51393ed5a481a554074d3c482d53ecd917f2f5dffdf3d2ee138

DarkComet

c960f47eb155a0066c0e4e279c296d0516edf66cf032b44188fe3d7f3a16aef6

DarkComet

ea0493a75251c59cbf9ae40a8c3ed4a0808adf8071f4c297d4fe52ead18962ef

DarkComet

f221abcc28479d141353cdf6963987ed217d33eea32cca67e10a68e63c1dfc7a

DarkComet

+ 97 additional samples on MalwareBazaar

Result

Malware family:

darkcomet

Score:

10/10

Tags:

family:darkcomet evasion persistence rat trojan

Link:

https://tria.ge/reports/210505-z1km7c36h2/

Behaviour

Modifies registry class

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Views/modifies file attributes

Enumerates physical storage devices

Adds Run key to start application

Checks computer location settings

Deletes itself

Loads dropped DLL

Drops file in Drivers directory

Executes dropped EXE

Sets file to hidden

Darkcomet

Modifies WinLogon for persistence

Unpacked files

SH256 hash:

6f08293219654fea6c04ef20b911c4b3d28029ae32b9bcfaa7278df56a059ede

MD5 hash:

db08908582b5fadec29d5ea3c91b954a

SHA1 hash:

fedaf416dd8019a55657d8321d70e2d09c98c595

Detections:

win_darkcomet_auto

win_darkcomet_g0

Link:

https://www.unpac.me/results/f665764b-ad6f-48e2-af18-093f19e60100/

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:	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:	IPPort_combo_mem Create hunting rule
Author:	James_inthe_box
Description:	IP and port combo

Rule name:	Keylog_bin_mem Create hunting rule
Author:	James_inthe_box
Description:	Contains Keylog

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:	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.

Cape

https://www.capesandbox.com/analysis/150524/

Comments

Login required

You need to login to in order to write a comment. Login with your abuse.ch account.

a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-05-05 12:58:55 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [B0001.032] Anti-Behavioral Analysis::Timing/Delay Check GetTickCount
1) [B0009.029] Anti-Behavioral Analysis::Instruction Testing
2) [B0009] Anti-Behavioral Analysis::Virtual Machine Detection
3) [F0002.001] Collection::Application Hook
4) [F0002.002] Collection::Polling
6) [B0030.002] Command and Control::Receive Data
7) [C0004.001] Communication Micro-objective::Send File::FTP Communication
8) [C0004.002] Communication Micro-objective::WinINet::FTP Communication
9) [C0002.009] Communication Micro-objective::Connect to Server::HTTP Communication
10) [C0002.012] Communication Micro-objective::Create Request::HTTP Communication
11) [C0002.006] Communication Micro-objective::Download URL::HTTP Communication
12) [C0002.017] Communication Micro-objective::Get Response::HTTP Communication
13) [C0002.004] Communication Micro-objective::Open URL::HTTP Communication
14) [C0003.001] Communication Micro-objective::Create Pipe::Interprocess Communication
15) [C0003.003] Communication Micro-objective::Read Pipe::Interprocess Communication
16) [C0027.009] Cryptography Micro-objective::RC4::Encrypt Data
17) [C0028.002] Cryptography Micro-objective::RC4 KSA::Encryption Key
18) [C0021.004] Cryptography Micro-objective::RC4 PRGA::Generate Pseudo-random Sequence
19) [C0021] Cryptography Micro-objective::Generate Pseudo-random Sequence
20) [C0060] Data Micro-objective::Compression Library
21) [C0026.002] Data Micro-objective::XOR::Encode Data
23) [B0043] Discovery::Taskbar Discovery
24) [C0045] File System Micro-objective::Copy File
25) [C0046] File System Micro-objective::Create Directory
26) [C0047] File System Micro-objective::Delete File
27) [C0049] File System Micro-objective::Get File Attributes
28) [C0051] File System Micro-objective::Read File
29) [C0050] File System Micro-objective::Set File Attributes
30) [C0052] File System Micro-objective::Writes File
31) [E1510] Impact::Clipboard Modification
32) [C0007] Memory Micro-objective::Allocate Memory
33) [C0036.004] Operating System Micro-objective::Create Registry Key::Registry
34) [C0036.002] Operating System Micro-objective::Delete Registry Key::Registry
35) [C0036.007] Operating System Micro-objective::Delete Registry Value::Registry
36) [C0036.003] Operating System Micro-objective::Open Registry Key::Registry
37) [C0036.005] Operating System Micro-objective::Query Registry Key::Registry
38) [C0036.006] Operating System Micro-objective::Query Registry Value::Registry
39) [C0036.001] Operating System Micro-objective::Set Registry Key::Registry
40) [C0042] Process Micro-objective::Create Mutex
41) [C0017.003] Process Micro-objective::Create Suspended Process::Create Process
42) [C0017] Process Micro-objective::Create Process
43) [C0038] Process Micro-objective::Create Thread
44) [C0054] Process Micro-objective::Resume Thread
45) [C0041] Process Micro-objective::Set Thread Local Storage Value
46) [C0018] Process Micro-objective::Terminate Process