MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 431cdc21ffcd2785f9f3c1fde2cb6f003b3bfe5fef4ca8de7480a430c99a8905. 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: 9


Intelligence 9 IOCs 1 YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 431cdc21ffcd2785f9f3c1fde2cb6f003b3bfe5fef4ca8de7480a430c99a8905
SHA3-384 hash: cc06ccddc558b6413984d8784bcb9d90371a206ef1decb1fadc1f3068ba2cf8a8cced38fc7020306931840586325b57b
SHA1 hash: b7b892ee236753217952d8c58e2573483db293d6
MD5 hash: ab8a4c7bb3e24152d3f33deb5dbd0009
humanhash: delta-kentucky-lactose-salami
File name:Furnicture Specification.exe
Download: download sample
Signature njrat
Create hunting rule
File size:442'368 bytes
First seen:2022-05-12 02:56:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 6144:mCdPT2lEkrmQY0/ehoRfEf3q+2dfT/P5zAA+7tBiDZbjgWFExQe+:ra1YGfG38fT/P1D9HuxQe+
Threatray 2'332 similar samples on MalwareBazaar
TLSH T17894E150B146859BF85657F0CD9EC4D403B6AD1FACB1D22F69867A2D5AF330200E3E6B
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon 79e4e4ccccc4ccc0 (16 x AgentTesla, 3 x njrat, 3 x GuLoader)
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
194.5.97.26:4002

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
194.5.97.26:4002 https://threatfox.abuse.ch/ioc/550625/

Intelligence

File Origin
# of uploads :
1
# of downloads :
374
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/269801/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed replace.exe
Link:
https://www.filescan.io/uploads/627c777f40028d3247cb479b/reports/cdc39f59-0683-4b68-9a8a-fd7bfd06eba8/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7260dba3-0c22-4cee-965d-b5fcf8157b94
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/992328
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Creates multiple autostart registry keys
Drops PE files to the startup folder
Found malware configuration
Injects a PE file into a foreign processes
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
Snort IDS alert for network traffic
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 AntiVM3
Yara detected Generic Downloader
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 624824 Sample: Furnicture  Specification.exe Startdate: 12/05/2022 Architecture: WINDOWS Score: 100 69 Snort IDS alert for network traffic 2->69 71 Found malware configuration 2->71 73 Malicious sample detected (through community Yara rule) 2->73 75 13 other signatures 2->75 10 Furnicture  Specification.exe 3 2->10         started        14 Adobe Reader .exe 2 2->14         started        16 Adobe Reader .exe 2 2->16         started        18 Windows.exe 2->18         started        process3 file4 61 C:\...\Furnicture  Specification.exe.log, ASCII 10->61 dropped 81 Injects a PE file into a foreign processes 10->81 20 Furnicture  Specification.exe 2 4 10->20         started        24 Furnicture  Specification.exe 10->24         started        26 Adobe Reader .exe 14->26         started        28 Adobe Reader .exe 14->28         started        30 Adobe Reader .exe 14->30         started        32 Adobe Reader .exe 16->32         started        35 Windows.exe 18->35         started        37 Windows.exe 18->37         started        signatures5 process6 dnsIp7 59 C:\Users\user\AppData\...\Adobe Reader .exe, PE32 20->59 dropped 77 Uses cmd line tools excessively to alter registry or file data 20->77 39 Adobe Reader .exe 3 20->39         started        42 attrib.exe 1 20->42         started        65 192.168.2.1 unknown unknown 32->65 file8 signatures9 process10 signatures11 79 Injects a PE file into a foreign processes 39->79 44 Adobe Reader .exe 4 4 39->44         started        49 conhost.exe 42->49         started        process12 dnsIp13 67 194.5.97.26, 4002, 49769 DANILENKODE Netherlands 44->67 63 C:\Users\user\AppData\Roaming\...\Windows.exe, PE32 44->63 dropped 83 Uses cmd line tools excessively to alter registry or file data 44->83 85 Creates multiple autostart registry keys 44->85 51 attrib.exe 44->51         started        53 attrib.exe 44->53         started        file14 signatures15 process16 process17 55 conhost.exe 51->55         started        57 conhost.exe 53->57         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/431cdc21ffcd2785f9f3c1fde2cb6f003b3bfe5fef4ca8de7480a430c99a8905/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-05-12 02:57:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=imonyip7zutyl6ptyh66fs3paa5tx7s755gkrxtuqcsdbsm2recq._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
0a05f8788ca28d5f4e2ad838a36f83107326d3021fc5bc9824fe2c47dfd07712
njrat
3441e66bd2febee7b35a6268f466b526628cdc2de0abab93b5cbf8a4c239d50a
njrat
418b71760c6de41ed293744610e252c7474decd221371ffa449411dde751be46
njrat
7202ac55d7b97627bbe84ca2f7517b3af368c788c2a42af24bec1f2464a8aea6
njrat
89aea7429e8634bbba4d97c8576adb9568cdf91830d15ecd2c34c5a290f7b83f
njrat
b13fbd200b38f02c0278e54483e641a2cfb41acd1a90bed78ac8791d0c1cf5b2
njrat
d60845023b6f4924993a60e60e1db49c5b6cc9ede4e09560d3542dd5f1bee603
njrat
e61195d0d4b897536f0cc090d36140099db443b5b913894d13cd76f7abee36b6
njrat
ffec1862f56857ad722abbcb98be7af86f2cf0763371bcb40273f0d884157c32
njrat
+ 2'322 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:hacked persistence suricata trojan
Link:
https://tria.ge/reports/220512-dfk6hshaf7/
Behaviour
Suspicious use of WriteProcessMemory
Views/modifies file attributes
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Drops startup file
Loads dropped DLL
Executes dropped EXE
njRAT/Bladabindi
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
Malware Config
C2 Extraction:
194.5.97.26:4002
Unpacked files
SH256 hash:
c206122a7336385be557580c114ac0923192f61bc8f77aa58c898135438399f9
MD5 hash:
6c9e813248a01432890c476813d210b8
SHA1 hash:
fd54aa3af58fc3a88cb3fd6753d773cd6c51b7f8
Link:
https://www.unpac.me/results/f4d3c0ba-9664-4cf7-ade8-47c3292aa28a/
SH256 hash:
f8619ef00784811b13ec22d7cf2e2b98edeedd76744c32815b04b5377fd0932d
MD5 hash:
6e0b1e0832debc9f41daf43fdbcb7ece
SHA1 hash:
cb518f16bf6536218ef5f221c5d880cac68b5e32
Link:
https://www.unpac.me/results/f4d3c0ba-9664-4cf7-ade8-47c3292aa28a/
SH256 hash:
650eba4dd90d3d0bbee4b6fcf645165b95b6aa3fc58143e121ef76392ddc4b21
MD5 hash:
8daef48ac19edce8a768d84e827161bb
SHA1 hash:
340be8092f23823dbca97a88d3d6ffd65eedce63
Link:
https://www.unpac.me/results/f4d3c0ba-9664-4cf7-ade8-47c3292aa28a/
SH256 hash:
5269b7ef1e93dacb24d9ccf2c13c5e1f7526d5ffa173d2ceaf827c5d8c876f9f
MD5 hash:
93355574bbe93dbaa4feccb1bb9d3850
SHA1 hash:
1f39df84e5d492ab1c21d2b215c375120438a687
Link:
https://www.unpac.me/results/f4d3c0ba-9664-4cf7-ade8-47c3292aa28a/
SH256 hash:
431cdc21ffcd2785f9f3c1fde2cb6f003b3bfe5fef4ca8de7480a430c99a8905
MD5 hash:
ab8a4c7bb3e24152d3f33deb5dbd0009
SHA1 hash:
b7b892ee236753217952d8c58e2573483db293d6
Link:
https://www.unpac.me/results/f4d3c0ba-9664-4cf7-ade8-47c3292aa28a/
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/431cdc21ffcd2785f9f3c1fde2cb6f003b3bfe5fef4ca8de7480a430c99a8905

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: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/269801/

Comments