MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c960f47eb155a0066c0e4e279c296d0516edf66cf032b44188fe3d7f3a16aef6. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c960f47eb155a0066c0e4e279c296d0516edf66cf032b44188fe3d7f3a16aef6
SHA3-384 hash: bbe314c0a786b18a84b8ba3716bf6403e209083e358e3d5926afa06db98bab1f347453a4fe8fc6bcf17d7a36006c9ddb
SHA1 hash: 2481b3aa2a0084a7aa8a5dae26e7a95bd948cd61
MD5 hash: fe655433e25918abfbf8d0a748b53ebd
humanhash: idaho-summer-green-equal
File name:Recu.exe
Download: download sample
Signature DarkComet
Create hunting rule
File size:892'416 bytes
First seen:2020-10-21 10:00:21 UTC
Last seen:2020-10-25 18:57:29 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:O8twTmD53Aa72cgIxjtEKADCY7oJB1pNV0vpvQc:mmDSfFaxEKAOYQzzCvJt
Threatray 45 similar samples on MalwareBazaar
TLSH 3115F1303258B467C09D3937403ECF9783B1EA41BAF6D95F3095572DCB6248BA70AA5B
Reporter abuse_ch
Tags:DarkComet exe Outlook RAT


Avatar
abuse_ch
Malspam distributing DarkComet:

HELO: EUR06-VI1-obe.outbound.protection.outlook.com
Sending IP: 40.92.17.52
From: beatrice dizy <dizys2@msn.com>
Subject: Re: Re:
Attachment: Recu.zip (contains "Recu.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
185
Origin country :
n/a
Vendor Threat Intelligence
Detection:
DarkComet
Create hunting rule
Link:
https://www.capesandbox.com/analysis/73983/
Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% directory
Launching cmd.exe command interpreter
Creating a process from a recently created file
Result
Threat name:
DarkComet
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/505664
Signature
.NET source code contains very large array initializations
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses cmd line tools excessively to alter registry or file data
Yara detected DarkComet
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 301893 Sample: Recu.exe Startdate: 21/10/2020 Architecture: WINDOWS Score: 92 68 Malicious sample detected (through community Yara rule) 2->68 70 Multi AV Scanner detection for submitted file 2->70 72 Yara detected DarkComet 2->72 74 2 other signatures 2->74 10 Recu.exe 4 2->10         started        14 Applicatio.exe 2->14         started        16 Applicatio.exe 2->16         started        process3 file4 64 C:\Users\user\AppData\Local\...\Recu.exe.log, ASCII 10->64 dropped 82 Hides that the sample has been downloaded from the Internet (zone.identifier) 10->82 18 cmd.exe 1 10->18         started        20 cmd.exe 2 10->20         started        signatures5 process6 file7 23 Applicatio.exe 3 18->23         started        26 conhost.exe 18->26         started        62 C:\Users\user\AppData\...\Applicatio.exe, PE32 20->62 dropped 28 conhost.exe 20->28         started        process8 signatures9 76 Multi AV Scanner detection for dropped file 23->76 78 Uses cmd line tools excessively to alter registry or file data 23->78 80 Hides that the sample has been downloaded from the Internet (zone.identifier) 23->80 30 cmd.exe 1 23->30         started        33 cmd.exe 1 23->33         started        35 cmd.exe 1 23->35         started        37 6 other processes 23->37 process10 dnsIp11 84 Uses cmd line tools excessively to alter registry or file data 30->84 40 reg.exe 1 1 30->40         started        42 conhost.exe 30->42         started        44 conhost.exe 33->44         started        46 reg.exe 1 33->46         started        48 conhost.exe 35->48         started        50 reg.exe 1 35->50         started        66 127.0.0.1 unknown unknown 37->66 86 Installs a global keyboard hook 37->86 52 conhost.exe 37->52         started        54 reg.exe 37->54         started        56 6 other processes 37->56 signatures12 process13 process14 58 mscorsvw.exe 40->58         started        60 mscorsvw.exe 40->60         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c960f47eb155a0066c0e4e279c296d0516edf66cf032b44188fe3d7f3a16aef6/
Threat name:
ByteCode-MSIL.Trojan.Woreflint
Create hunting rule
Status:
Malicious
First seen:
2020-10-20 23:11:56 UTC
AV detection:
18 of 29 (62.07%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=zfqpi7vrkwqam3aojytzyklnaulo35tm6azliqmi7y6x6oqwv33a._file
Verdict:
malicious
Similar samples:
03e6b99846c4ab6a841fa7aa135d2e7230a98957c1595e2ee0bc2b14329871ca
DarkComet
17ae41e1fde622159bcfd56e80ce0cdee5edfc147370e77091f17eed192d54e0
DarkComet
1f9ff29afc60eebf41511416db4988007f3d041744574ac144f88eaf82e52b25
DarkComet
4cd80b1158f28fc2c53e2f84e5ae119bf54cc2507a8d649e649f2cc6458bf2de
DarkComet
5270cd6488da8841fbe6f1fa6b91f7b27be14bfcd52d1f2f3925cc2973ef4944
DarkComet
78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398
DarkComet
967db64d16674b438203bc9303f8e7ad4f424ada45eb28330dd61295ee86786d
DarkComet
a3c44389aac31e62cd3267525d4cfebbd65c32fbaec918500b606d67b0ea62d8
DarkComet
b54347c754b7095d0a38c7180eaa71e50c4431b7c721f7791483babb2610d17b
DarkComet
ea0493a75251c59cbf9ae40a8c3ed4a0808adf8071f4c297d4fe52ead18962ef
DarkComet
+ 35 additional samples on MalwareBazaar
Result
Malware family:
darkcomet
Create hunting rule
Score:
  10/10
Tags:
trojan rat family:darkcomet persistence
Link:
https://tria.ge/reports/201021-t13kbn41dj/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Darkcomet
Unpacked files
SH256 hash:
c960f47eb155a0066c0e4e279c296d0516edf66cf032b44188fe3d7f3a16aef6
MD5 hash:
fe655433e25918abfbf8d0a748b53ebd
SHA1 hash:
2481b3aa2a0084a7aa8a5dae26e7a95bd948cd61
Link:
https://www.unpac.me/results/76b385d5-c907-4cc3-bd5b-668e74a42fb4/
SH256 hash:
4f690f3cf792f24a571f09740cf25d0979bde8c11180a26864056643c30479cd
MD5 hash:
304cc4a1948539064cfec5b70bd83e21
SHA1 hash:
32b3754f52323fd71b8349f01c9dd4bc4fecd880
Link:
https://www.unpac.me/results/76b385d5-c907-4cc3-bd5b-668e74a42fb4/
SH256 hash:
542282ed737d2cb55e3cb59d05e58e8dbf6473d63461194a9ba597f0f3eb5d75
MD5 hash:
0ab09caf48c9dcbcbd53aef80493abd2
SHA1 hash:
fd985c8ed98d443fde035be26592b92662b9c5ea
Link:
https://www.unpac.me/results/76b385d5-c907-4cc3-bd5b-668e74a42fb4/
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: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.

Malspam

DarkComet

zip e6e171a05f12f0f58ccc02c52c191911465556bd5049e5fc1c1634369d0afaee

DarkComet

Executable exe c960f47eb155a0066c0e4e279c296d0516edf66cf032b44188fe3d7f3a16aef6

(this sample)

  
Dropped by
MD5 1706ce21f1bc5e832dd9e6266eed572c
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 e6e171a05f12f0f58ccc02c52c191911465556bd5049e5fc1c1634369d0afaee
Cape
Cape
https://www.capesandbox.com/analysis/73983/

Comments