MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3a257336a2fd2160305094d425c7426dc07b5aa311eb7e31d5ac5d71d2cf8d4e. 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: 8


Intelligence 8 IOCs YARA 4 File information Comments
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SHA256 hash: 3a257336a2fd2160305094d425c7426dc07b5aa311eb7e31d5ac5d71d2cf8d4e
SHA3-384 hash: 755935f85be2a5b4781960f40fe07b334c1b2ca13102fac4bb5dc2b8bd1423da829182f37c7858a78764c2d73212a02b
SHA1 hash: 390772bf93171a02e4d22b8c262854ffbd1cd132
MD5 hash: 908eba5a2eb01adb8dec24796369a583
humanhash: fillet-victor-winter-minnesota
File name:3a257336a2fd2160305094d425c7426dc07b5aa311eb7e31d5ac5d71d2cf8d4e
Download: download sample
Signature njrat
Create hunting rule
File size:129'536 bytes
First seen:2021-09-30 12:35:31 UTC
Last seen:2021-09-30 14:09:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 3072:68VL5pf7DpGHw/ebmX+EVJSMuqNDuU91Xdo:ZVL5FpGHwdXTJSMZNiUne
Threatray 148 similar samples on MalwareBazaar
TLSH T189C36B5AB7DECFA6C79FC3BD84A0A2847338C6665842F34F6D0418E418613DBC5961EB
Reporter JAMESWT_WT
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
310
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/193643/
Detection(s):
SecuriteInfo.com.Artemis908EBA5A2EB0.30307.3464.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Creating a file in the %AppData% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a window
Connection attempt to an infection source
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Query of malicious DNS domain
Enabling autorun by creating a file
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1e79e6d5-5ce8-49c6-8a1e-20bffbbefb75
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/861904
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus detection for dropped file
Creates autostart registry keys with suspicious names
Creates multiple autostart registry keys
Drops PE files to the startup folder
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Uses dynamic DNS services
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 494339 Sample: TXPZjZV9Bq Startdate: 30/09/2021 Architecture: WINDOWS Score: 100 38 Malicious sample detected (through community Yara rule) 2->38 40 Antivirus detection for dropped file 2->40 42 Multi AV Scanner detection for submitted file 2->42 44 6 other signatures 2->44 8 TXPZjZV9Bq.exe 5 2->8         started        12 Intel HD Graphics Drivers for Windows(R).exe 4 2->12         started        14 Intel HD Graphics Drivers for Windows(R).exe 3 2->14         started        process3 file4 32 Intel HD Graphics ... for Windows(R).exe, PE32 8->32 dropped 34 C:\Users\user\AppData\...\TXPZjZV9Bq.exe.log, ASCII 8->34 dropped 50 Hides that the sample has been downloaded from the Internet (zone.identifier) 8->50 16 Intel HD Graphics Drivers for Windows(R).exe 2 7 8->16         started        signatures5 process6 file7 28 Intel HD Graphics ... for Windows(R).exe, PE32 16->28 dropped 19 Intel HD Graphics Drivers for Windows(R).exe 4 6 16->19         started        24 attrib.exe 1 16->24         started        process8 dnsIp9 36 w187.ddns.net 95.185.0.165, 22 ALJAWWALSTC-ASSA Saudi Arabia 19->36 30 Intel HD Graphics ... for Windows(R).exe, PE32 19->30 dropped 46 Creates autostart registry keys with suspicious names 19->46 48 Creates multiple autostart registry keys 19->48 26 conhost.exe 24->26         started        file10 signatures11 process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3a257336a2fd2160305094d425c7426dc07b5aa311eb7e31d5ac5d71d2cf8d4e/
Threat name:
Win32.Trojan.Sabsik
Create hunting rule
Status:
Malicious
First seen:
2021-09-29 15:01:00 UTC
AV detection:
9 of 45 (20.00%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
0b365ef77b8b8ed330a2e48b081a20d9eb5b275b276306e5b51615cf10821fe0
njrat
7202ac55d7b97627bbe84ca2f7517b3af368c788c2a42af24bec1f2464a8aea6
njrat
782667af38df6e7ba26459208f01bed350a5e9f2850a6c270b610e9d70f583fb
njrat
89aea7429e8634bbba4d97c8576adb9568cdf91830d15ecd2c34c5a290f7b83f
njrat
c1545dbc06eb4bd3681801efd6a9c6a14f1312f1cf528f23d5b2a576fa148191
njrat
c3ecb60634ee3e18fb05e1ebb99ceeb681719627c85eb5a5aa662242adb0b67f
njrat
d424a08c1e1eac484c029a6ef4008bf991aebf26a86aa02fecd18ad60bb24a0f
njrat
d9d27f03e2f8bc97451296da9a7ddeac39ede3240306fa198bf898434b58c53c
njrat
df047189f75d998dc499072881c762fd001360f5cf184b801cb8c232b5c567f6
njrat
ee3e682e4fa43cda0810b952e2df8b07c4fd952fe49c22c8dc4fbee1247f0b6b
njrat
+ 138 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:@ west - hacking k.s.a @ persistence trojan
Link:
https://tria.ge/reports/210930-psxkvshga8/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Views/modifies file attributes
Enumerates physical storage devices
Adds Run key to start application
Drops startup file
Loads dropped DLL
Executes dropped EXE
njRAT/Bladabindi
Malware Config
C2 Extraction:
w187.ddns.net:22
Unpacked files
SH256 hash:
7e9b32e715ed33aa05dbcf577876933ee43a0632ffcd95a50b23d612d82a88d1
MD5 hash:
f19f7b77300d578fe7f0304ee15bfae3
SHA1 hash:
89f17fcbf414876b65e555d8cf51ab8db4db132c
Link:
https://www.unpac.me/results/e3dc6908-4166-40d0-8014-a26e93f3c6ff/
SH256 hash:
3a257336a2fd2160305094d425c7426dc07b5aa311eb7e31d5ac5d71d2cf8d4e
MD5 hash:
908eba5a2eb01adb8dec24796369a583
SHA1 hash:
390772bf93171a02e4d22b8c262854ffbd1cd132
Link:
https://www.unpac.me/results/e3dc6908-4166-40d0-8014-a26e93f3c6ff/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/3a257336a2fd/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/3a257336a2fd2160305094d425c7426dc07b5aa311eb7e31d5ac5d71d2cf8d4e

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:INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

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/193643/

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