MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 08cb598a06ac7af5e79b41b4ce3bd4b2d6c37c1cbaa7c3e1e785f3038e08da3a. 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: 8


Intelligence 8 IOCs YARA 7 File information Comments
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SHA256 hash: 08cb598a06ac7af5e79b41b4ce3bd4b2d6c37c1cbaa7c3e1e785f3038e08da3a
SHA3-384 hash: 9733ae36883743ed8a9d6e98b719ab09812c51bec3ca60aa7f5e28c32a280da2743215c60d09175c888896efd9b86086
SHA1 hash: c4e2978c9ceab4193f1377ffe73e24df1f803cb7
MD5 hash: 7744292984634c7a638686636bca0aa7
humanhash: double-bravo-florida-white
File name:08cb598a06ac7af5e79b41b4ce3bd4b2d6c37c1cbaa7c3e1e785f3038e08da3a
Download: download sample
Signature DarkComet
Create hunting rule
File size:1'753'114 bytes
First seen:2020-11-11 11:27:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 3d95adbf13bbe79dc24dccb401c12091 (881 x AgentTesla, 737 x FormBook, 236 x SnakeKeylogger)
ssdeep 49152:xt1EwDw7abTTpZ5cIQ4ikHbG8FIx/re7ZI:n1Ew0QCIviaG8F0/reS
TLSH B485E02223DE8251C3A262737F15F3316F6BBC1906A5F9572FD80C3FF964522464AA63
Reporter seifreed
Tags:DarkComet

Intelligence

File Origin
# of uploads :
1
# of downloads :
353
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Win.Trojan.Autoit-9790251-0
Create hunting rule

Win.Trojan.Autoit-9790267-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file
Creating a process from a recently created file
Setting a keyboard event handler
DNS request
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Enabling autorun
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.
Result
Threat name:
Darkcomet
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/532747
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Binary is likely a compiled AutoIt script file
Contains functionality to capture and log keystrokes
Contains functionality to inject code into remote processes
Contains functionality to log keystrokes
Contains functionalty to change the wallpaper
Creates an undocumented autostart registry key
Detected Darkcomet RAT
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Drops PE files to the document folder of the user
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Uses dynamic DNS services
Yara detected DarkComet
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 315474 Sample: BCffV8MYk9 Startdate: 12/11/2020 Architecture: WINDOWS Score: 100 35 nikitahack.ddns.net 2->35 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Antivirus / Scanner detection for submitted sample 2->47 49 5 other signatures 2->49 9 BCffV8MYk9.exe 2->9         started        12 JavawsJRE06.exe 2->12         started        14 JavawsJRE06.exe 2->14         started        signatures3 process4 signatures5 59 Detected unpacking (changes PE section rights) 9->59 61 Detected unpacking (overwrites its own PE header) 9->61 63 Detected Darkcomet RAT 9->63 65 7 other signatures 9->65 16 BCffV8MYk9.exe 1 4 9->16         started        20 JavawsJRE06.exe 12->20         started        22 JavawsJRE06.exe 14->22         started        process6 file7 31 C:\Users\user\Documents\...\JavawsJRE06.exe, PE32 16->31 dropped 33 C:\Users\...\JavawsJRE06.exe:Zone.Identifier, ASCII 16->33 dropped 41 Creates an undocumented autostart registry key 16->41 24 JavawsJRE06.exe 16->24         started        signatures8 process9 signatures10 51 Antivirus detection for dropped file 24->51 53 Multi AV Scanner detection for dropped file 24->53 55 Detected unpacking (changes PE section rights) 24->55 57 4 other signatures 24->57 27 JavawsJRE06.exe 3 24->27         started        process11 dnsIp12 37 nikitahack.ddns.net 27->37 39 192.168.2.1 unknown unknown 27->39 67 Installs a global keyboard hook 27->67 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/08cb598a06ac7af5e79b41b4ce3bd4b2d6c37c1cbaa7c3e1e785f3038e08da3a/
Threat name:
Win32.Backdoor.Poison
Create hunting rule
Status:
Malicious
First seen:
2020-11-11 11:31:39 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=bdfvtcqgvr5plz43ig2m4o6uwllmg7a4xkt4hyphqxzqhdqi3i5a._file
Result
Malware family:
darkcomet
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Score:
  10/10
Tags:
family:darkcomet persistence rat trojan
Link:
https://tria.ge/reports/201111-99g3qdnxaj/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Darkcomet
Modifies WinLogon for persistence
Unpacked files
SH256 hash:
08cb598a06ac7af5e79b41b4ce3bd4b2d6c37c1cbaa7c3e1e785f3038e08da3a
MD5 hash:
7744292984634c7a638686636bca0aa7
SHA1 hash:
c4e2978c9ceab4193f1377ffe73e24df1f803cb7
Link:
https://www.unpac.me/results/e93ded7b-3a34-43df-81f1-48d427a0b9c8/
SH256 hash:
f4d79ef360385573326b848868c5ee49deb0ea642675d78612a88d101293143b
MD5 hash:
e682b848c368993bea4989f90d2976c3
SHA1 hash:
53ce5d98f44ab0dec0b20517e974139b7c9e656b
Detections:
win_darkcomet_g0
Create hunting rule
win_darkcomet_auto
Create hunting rule
Link:
https://www.unpac.me/results/e93ded7b-3a34-43df-81f1-48d427a0b9c8/
Parent samples :
08cb598a06ac7af5e79b41b4ce3bd4b2d6c37c1cbaa7c3e1e785f3038e08da3a
f75668dcd2d8c554bde126315253439858d2155588b1889473a7df5914537f10
e60c4be8e60b247c14021842a6543967b7ebd30992d12d634760ebf038773d6d
b906fffb5dfe57a4a0704e2a89803ce0af2f9e6dc16338fab258051f1c8c4c0e
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:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE).
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.

  
Delivery method
Other

Comments