MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 04c164391efcedd93b5c04dc137e8b80336265246fa15318a67d4b2d20bf257f. 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


njrat


Vendor detections: 14


Intelligence 14 IOCs 1 YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 04c164391efcedd93b5c04dc137e8b80336265246fa15318a67d4b2d20bf257f
SHA3-384 hash: 02541dbb726a7b195c5eac38fd7ef43599ca939ecea92a6d0c7275e9a3ddfa64db9b4e7acb23313d7523dd542275c3a7
SHA1 hash: d8b02d1cd0d582b93866ea2e2da10cb148828566
MD5 hash: 2f087c02e5a65fc3a150ba96ddde8a0f
humanhash: foxtrot-tango-muppet-leopard
File name:04C164391EFCEDD93B5C04DC137E8B80336265246FA15.exe
Download: download sample
Signature njrat
Create hunting rule
File size:788'992 bytes
First seen:2021-09-11 06:55:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e5b4359a3773764a372173074ae9b6bd (60 x DarkComet, 2 x njrat, 1 x NanoCore)
ssdeep 24576:kZ1xuVVjfFoynPaVBUR8f+kN10EBeupWq:EQDgok30C8q
Threatray 280 similar samples on MalwareBazaar
TLSH T153F49F31F2C08837D9321E7C9C5B92E5982A7E212E39B54B3AE51F4C5F396C239162D7
dhash icon b0b0909290d0e092 (1 x njrat)
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
104.168.102.173:5552

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
104.168.102.173:5552 https://threatfox.abuse.ch/ioc/219681/

Intelligence

File Origin
# of uploads :
1
# of downloads :
498
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
04C164391EFCEDD93B5C04DC137E8B80336265246FA15.exe
Verdict:
Malicious activity
Analysis date:
2021-09-11 06:57:01 UTC
Tags:
installer
Link:
https://app.any.run/tasks/6f00090f-ad72-47eb-a02f-154fcc02f286

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
DarkComet
Create hunting rule
Link:
https://www.capesandbox.com/analysis/187019/
Detection(s):
Win.Trojan.DarkKomet-1
Create hunting rule

PUA.Win.Packer.Exe-6
Create hunting rule

PUA.Win.Packer.Pequake-4
Create hunting rule

Win.Trojan.Vobfus-6875610-0
Create hunting rule

Win.Virus.Neshta-7101689-0
Create hunting rule

Win.Trojan.Darkkomet-7113180-0
Create hunting rule

Win.Malware.Bladabindi-7487253-0
Create hunting rule

Win.Packed.Samas-7998113-0
Create hunting rule

Win.Packed.Samas-8025724-0
Create hunting rule

Win.Packed.Razy-9625918-0
Create hunting rule

Win.Trojan.Barys-9799359-0
Create hunting rule

Win.Dropper.Zeus-9820070-0
Create hunting rule

Win.Packed.AsyncRAT-9856570-1
Create hunting rule

Win.Dropper.Darkkomet-9857869-0
Create hunting rule

Win.Trojan.Darkkomet-9857871-0
Create hunting rule

Win.Malware.Darkkomet-9857872-0
Create hunting rule

Win.Packed.AsyncRAT-9861056-1
Create hunting rule

PUA.Win.Packer.PrivateEXEProtector4-6192998-2
Create hunting rule

PUA.Win.Adware.Slugin-6840354-0
Create hunting rule

Win.Trojan.Darkkomet-6745084-0
Create hunting rule

Win.Trojan.Fynloski-40
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun
Malware family:
DarkComet
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5a4b604f-5a11-481c-aea2-9d37038f7cd0
Result
Threat name:
Darkcomet AsyncRAT Neshta Njrat
Create hunting rule
Detection:
malicious
Classification:
rans.spre.troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/849092
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Changes security center settings (notifications, updates, antivirus, firewall)
Connects to many ports of the same IP (likely port scanning)
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
Creates multiple autostart registry keys
Detected Darkcomet RAT
Drops executable to a common third party application directory
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files to the document folder of the user
Drops PE files to the startup folder
Drops PE files with a suspicious file extension
Drops PE files with benign system names
Infects executable files (exe, dll, sys, html)
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 submitted file
Sample is not signed and drops a device driver
Sigma detected: Schedule system process
Sigma detected: Suspicious Svchost Process
Sigma detected: System File Execution Location Anomaly
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AsyncRAT
Yara detected DarkComet
Yara detected Neshta
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 481523 Sample: 04C164391EFCEDD93B5C04DC137... Startdate: 11/09/2021 Architecture: WINDOWS Score: 100 112 marbeyli.duckdns.org 2->112 122 Malicious sample detected (through community Yara rule) 2->122 124 Antivirus detection for dropped file 2->124 126 Antivirus / Scanner detection for submitted sample 2->126 128 14 other signatures 2->128 12 svchost.com 2->12         started        16 04C164391EFCEDD93B5C04DC137E8B80336265246FA15.exe 4 6 2->16         started        18 svchost.exe 2->18         started        20 12 other processes 2->20 signatures3 process4 dnsIp5 94 04C164391EFCEDD93B...80336265246FA15.exe, MS-DOS 12->94 dropped 96 C:\...\protocolhandler.exe, MS-DOS 12->96 dropped 98 C:\Program Files (x86)\...\misc.exe, MS-DOS 12->98 dropped 108 98 other malicious files 12->108 dropped 160 Drops executable to a common third party application directory 12->160 162 Infects executable files (exe, dll, sys, html) 12->162 23 svchost.exe 12->23         started        100 C:\Users\user\Documents\MSDCSC\svchost.exe, PE32 16->100 dropped 102 C:\Users\user\...\svchost.exe:Zone.Identifier, ASCII 16->102 dropped 104 C:\Users\user\AppData\Local\...\SVCHOST.EXE, MS-DOS 16->104 dropped 106 C:\Users\user\AppData\Local\Temp\CHROME.EXE, MS-DOS 16->106 dropped 164 Detected Darkcomet RAT 16->164 166 Drops PE files to the document folder of the user 16->166 168 Creates an undocumented autostart registry key 16->168 172 6 other signatures 16->172 25 SVCHOST.EXE 4 16->25         started        29 svchost.exe 1 3 16->29         started        32 CHROME.EXE 4 5 16->32         started        170 Changes security center settings (notifications, updates, antivirus, firewall) 18->170 114 127.0.0.1 unknown unknown 20->114 34 svchost.exe 20->34         started        36 CHROME.EXE 20->36         started        38 CHROME.EXE 20->38         started        40 Java update.exe 20->40         started        file6 signatures7 process8 dnsIp9 80 C:\Users\user\AppData\Local\...\SVCHOST.EXE, PE32 25->80 dropped 82 C:\Windows\svchost.com, MS-DOS 25->82 dropped 84 C:\Users\user\AppData\Local\...\setup.exe, MS-DOS 25->84 dropped 88 10 other malicious files 25->88 dropped 130 Drops PE files with a suspicious file extension 25->130 132 Drops PE files with benign system names 25->132 134 Drops executable to a common third party application directory 25->134 136 Infects executable files (exe, dll, sys, html) 25->136 42 SVCHOST.EXE 1 7 25->42         started        118 marbeyli.duckdns.org 91.178.237.206, 1604, 5552, 6606 PROXIMUS-ISP-ASBE Belgium 29->118 138 Detected Darkcomet RAT 29->138 140 Contains functionalty to change the wallpaper 29->140 142 Contains functionality to capture and log keystrokes 29->142 144 Installs a global keyboard hook 29->144 46 svchost.com 29->46         started        48 svchost.com 1 29->48         started        86 C:\Users\user\AppData\...\Java update.exe, MS-DOS 32->86 dropped 146 Creates multiple autostart registry keys 32->146 148 Drops PE files to the startup folder 32->148 file10 signatures11 process12 file13 90 C:\Users\user\AppData\Roaming\svchost.exe, PE32 42->90 dropped 92 C:\Users\user\AppData\...\SVCHOST.EXE.log, ASCII 42->92 dropped 154 System process connects to network (likely due to code injection or exploit) 42->154 156 Drops PE files with benign system names 42->156 50 cmd.exe 42->50         started        53 svchost.com 42->53         started        55 SVCHOST.EXE 46->55         started        158 Sample is not signed and drops a device driver 48->158 57 CHROME.EXE 3 48->57         started        signatures14 process15 signatures16 120 Uses schtasks.exe or at.exe to add and modify task schedules 50->120 59 conhost.exe 50->59         started        61 timeout.exe 50->61         started        63 svchost.exe 50->63         started        65 cmd.exe 53->65         started        67 svchost.com 55->67         started        process17 process18 69 conhost.exe 65->69         started        71 schtasks.exe 65->71         started        73 SVCHOST.EXE 67->73         started        dnsIp19 116 marbeyli.duckdns.org 73->116 150 System process connects to network (likely due to code injection or exploit) 73->150 152 Drops executables to the windows directory (C:\Windows) and starts them 73->152 77 svchost.com 73->77         started        signatures20 process21 file22 110 C:\Windows\directx.sys, ASCII 77->110 dropped
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/04c164391efcedd93b5c04dc137e8b80336265246fa15318a67d4b2d20bf257f/
Threat name:
Win32.Backdoor.Fynloski
Create hunting rule
Status:
Malicious
First seen:
2021-08-19 22:37:44 UTC
AV detection:
28 of 28 (100.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=atawioi67tw5so24atobg7ulqazwezjen6qvggfgpvfs2if7ev7q._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
43bfc71737bff97fad2484a55e501262e2b25a03aac1a200843f3222f3dcc9a4
njrat
5daf38ba7d08872375f14a3d8de794d20aa37e1caeda4da0558e2a9cd4ed668a
njrat
9d8f404a77df431743b649f88642c7dd724c136eec43c94a55cfbb0f41d645c8
njrat
b13b73296a76348fa21f9d6120e93b0e6788dd1e0ffe245c23313384db089fd6
njrat
eadb655f8e92bf218894b479082dc74e0fce5a44cef4d74a6c3cf51c1773e4e3
njrat
f39cf76bea672912a70974a84cf6ce37188014dc1013ad00ad1fdefb8e7d9b15
njrat
+ 270 additional samples on MalwareBazaar
Result
Malware family:
darkcomet
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat family:darkcomet botnet:default botnet:sazan persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/210911-hqcz4secaq/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Adds Run key to start application
Checks computer location settings
Drops startup file
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Async RAT payload
AsyncRat
Darkcomet
Modifies WinLogon for persistence
Modifies system executable filetype association
Malware Config
C2 Extraction:
marbeyli.duckdns.org:1604
marbeyli.duckdns.org:6606
Unpacked files
SH256 hash:
04c164391efcedd93b5c04dc137e8b80336265246fa15318a67d4b2d20bf257f
MD5 hash:
2f087c02e5a65fc3a150ba96ddde8a0f
SHA1 hash:
d8b02d1cd0d582b93866ea2e2da10cb148828566
Detections:
win_asyncrat_w0
Create hunting rule
win_darkcomet_auto
Create hunting rule
win_darkcomet_g0
Create hunting rule
Link:
https://www.unpac.me/results/3179e336-7085-423e-b955-19fbec955863/
Malware family:
DarkComet
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/04c164391efc/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/04c164391efcedd93b5c04dc137e8b80336265246fa15318a67d4b2d20bf257f

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:asyncrat
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:AsyncRat
Create hunting rule
Author:kevoreilly, JPCERT/CC Incident Response Group
Description:AsyncRat Payload
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
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:MAL_Neshta_Generic
Create hunting rule
Author:Florian Roth
Description:Detects Neshta malware
Reference:Internal Research
Rule name:MAL_Neshta_Generic_RID2DC9
Create hunting rule
Author:Florian Roth
Description:Detects Neshta malware
Reference:Internal Research
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_asyncrat_j1
Create hunting rule
Author:Johannes Bader @viql
Description:detects AsyncRAT
Rule name:win_asyncrat_w0
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
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
Cape
https://www.capesandbox.com/analysis/187019/

Comments