MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 35991bb85bda3ee231097085d8ba480d80b24f32731308d0f6d1aaec0f8679af. 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 YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 35991bb85bda3ee231097085d8ba480d80b24f32731308d0f6d1aaec0f8679af
SHA3-384 hash: e622d9769ff4a2f0e8cbb3bb5dc8c7d1a9c1688be70ade1d35a4cebc6a3ff19f0f3d91ba17805c39e4533e15b7173f7f
SHA1 hash: cca5b463963c1b6850aade43a551f85b6ddd1a2e
MD5 hash: b3a6090cd0ed5f3479bcc59569767e27
humanhash: gee-vegan-winter-emma
File name:35991bb85bda3ee231097085d8ba480d80b24f32731308d0f6d1aaec0f8679af
Download: download sample
Signature njrat
Create hunting rule
File size:884'224 bytes
First seen:2022-03-23 11:57:46 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash bbac62fd99326ea68ec5a33b36925dd1 (46 x AgentTesla, 38 x njrat, 27 x Formbook)
ssdeep 12288:C4lsXvtCcmVVXzzn4PJAahPl/QEdIMiVbHydEIJnJWUgab758kq9MmCS:C4lavt0LkLL9IMixoEgeaHakq9MmCS
Threatray 2'127 similar samples on MalwareBazaar
TLSH T108159E0373DDC3A1C3725273BA66BB01AEBB7C2506A1F59B2FD5093DE920162521E673
File icon (PE):PE icon
dhash icon aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter JAMESWT_WT
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
231
Origin country :
n/a
Vendor Threat Intelligence
Detection:
njRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/256341/
Detection(s):
Win.Malware.Autoit-6978981-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Changing a file
Creating a file in the %temp% subdirectories
Creating a file
Creating a process from a recently created file
DNS request
Creating a process with a hidden window
Searching for synchronization primitives
Blocking the User Account Control
Unauthorized injection to a recently created process
Launching the process to change the firewall settings
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/10870/overview
Behaviour
MalwareBazaar
CheckNumberOfProcessor
MeasuringTime
EvasionQueryPerformanceCounter
CheckCmdLine
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
autoit control.exe expand.exe greyware hacktool keylogger shell32.dll
Link:
https://www.filescan.io/uploads/623b0bb50cd58dbd92df111a/reports/016ed3d5-097c-4fcc-9072-ee2f009337ee/overview
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:
njRat
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/963399
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
Creates autostart registry keys with suspicious names
Detected njRat
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: New RUN Key Pointing to Suspicious Folder
Uses netsh to modify the Windows network and firewall settings
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 595885 Sample: TU4k8D2Kdt Startdate: 24/03/2022 Architecture: WINDOWS Score: 100 36 Malicious sample detected (through community Yara rule) 2->36 38 Antivirus / Scanner detection for submitted sample 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 6 other signatures 2->42 9 TU4k8D2Kdt.exe 6 2->9         started        12 server.exe 3 2->12         started        14 server.exe 2 2->14         started        16 server.exe 2 2->16         started        process3 file4 32 C:\Users\user\AppData\Local\Temp\...\5186.exe, PE32 9->32 dropped 18 5186.exe 1 5 9->18         started        process5 file6 30 C:\Users\user\AppData\Local\Temp\server.exe, PE32 18->30 dropped 44 Antivirus detection for dropped file 18->44 46 Multi AV Scanner detection for dropped file 18->46 48 Machine Learning detection for dropped file 18->48 22 server.exe 4 4 18->22         started        signatures7 process8 dnsIp9 34 10.10.10.10, 5552 unknown unknown 22->34 50 Antivirus detection for dropped file 22->50 52 Multi AV Scanner detection for dropped file 22->52 54 Machine Learning detection for dropped file 22->54 56 3 other signatures 22->56 26 netsh.exe 1 3 22->26         started        signatures10 process11 process12 28 conhost.exe 26->28         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/35991bb85bda3ee231097085d8ba480d80b24f32731308d0f6d1aaec0f8679af/
Threat name:
Win32.Trojan.Nymeria
Create hunting rule
Status:
Malicious
First seen:
2022-03-10 20:27:00 UTC
File Type:
PE (Exe)
Extracted files:
22
AV detection:
35 of 42 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=gwmrxoc33i7oemijocc5rosibwaletzsomjqruhw2gvoyd4gpgxq._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
1e77593073ce7c57226c55e20d5ca2e09c84c86a083a9d56b3dd1bb732305683
njrat
46fa7b3768b1f91187f59fb97a88e1efbbe603dc88419c73da07c627e9d57f74
njrat
4f7ee2b1be709d2dfcfb894323ac4b6a3f3b0482c646d49b051769a6e3785239
njrat
69bc3e840c7aeb2c0eaa156a23c7717fb2352c7a4e1a28deedfbc25b79b27b82
njrat
a1912487964fbfa6a9004a0889bde004a7b3d007e98706b79688bbb6229af557
njrat
bbbd41df9ee8363af5927a1b8f8b6d373edc69b34069c3a1ff0e5696138a290d
njrat
bc341eccbdfecf1616134d92035e90b0622ec6731e5c5f74418f00ce3033a689
njrat
d9009371df732bd8b3ccab8b38e9968069503292b112b2b27cb1c3c54814b3ab
njrat
e1c12e80d4fe90ebf246356de9336ba64ce4263eaf2525c27412d534b8a89b29
njrat
f4ae0a96fe157d059c62d52e5934283f6055e822451db81a0bb9f646e98dc310
njrat
+ 2'117 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:hacked evasion persistence trojan
Link:
https://tria.ge/reports/220323-n47drsddc7/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
Enumerates physical storage devices
Adds Run key to start application
Checks whether UAC is enabled
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Modifies Windows Firewall
UAC bypass
njRAT/Bladabindi
Malware Config
C2 Extraction:
10.10.10.10:5552
Unpacked files
SH256 hash:
a81b976e022a926aca0a9ce47e91bd3bebf29d3c7021018491c1e256eb6cc7a4
MD5 hash:
9d68f11dc4daee0cdf2d1fd42ddddcf3
SHA1 hash:
a0fba6acbeb2cc78dcb7b012e2251a7f609d4385
Detections:
win_njrat_w1
Create hunting rule
win_njrat_g1
Create hunting rule
Link:
https://www.unpac.me/results/388cf403-8388-4ff4-b99d-00b8975cb692/
SH256 hash:
35991bb85bda3ee231097085d8ba480d80b24f32731308d0f6d1aaec0f8679af
MD5 hash:
b3a6090cd0ed5f3479bcc59569767e27
SHA1 hash:
cca5b463963c1b6850aade43a551f85b6ddd1a2e
Link:
https://www.unpac.me/results/388cf403-8388-4ff4-b99d-00b8975cb692/
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/35991bb85bda/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/35991bb85bda3ee231097085d8ba480d80b24f32731308d0f6d1aaec0f8679af

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).

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/256341/

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