MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 495135344619bad53ac992d52fb75b420130b856b65ceabad2748a4236bbd322. 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: 6


Intelligence 6 IOCs YARA 3 File information Comments
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SHA256 hash: 495135344619bad53ac992d52fb75b420130b856b65ceabad2748a4236bbd322
SHA3-384 hash: 5b89ce3a27da07410cd5035708a915029c922ecb343071f440c4dbbaeea845ca34196c304b8e2ee6c2c2cd2ff759c55d
SHA1 hash: e1c7afcd9d7f6a799bf31e0c18b3bdd8f606797b
MD5 hash: 88d0f51fc3b2ef2240e380af7049e4d8
humanhash: cold-double-ink-batman
File name:495135344619bad53ac992d52fb75b420130b856b65ceabad2748a4236bbd322
Download: download sample
Signature njrat
Create hunting rule
File size:356'352 bytes
First seen:2021-09-30 12:16:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 6144:Jgsy1cIPVZekV2EHcGQgtm7Tl75vBhM8Z6fG/G+GWzWhXT:2scPVZee2EH1tkVJ08Z6fR
Threatray 29 similar samples on MalwareBazaar
TLSH T11E74F569315071DFC917D1B29AA8CD78B6112C7B873B4517A0D73DAFBA3E18B8F101A2
File icon (PE):PE icon
dhash icon 69557564dc59338e (1 x njrat)
Reporter JAMESWT_WT
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
277
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/193577/
Detection(s):
Win.Packed.Razy-9808221-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% subdirectories
Launching a process
Creating a file in the %temp% directory
Creating a window
Setting a single autorun event
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c10fc8d8-334e-4787-a6b6-e8990c3dd7a2
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
spre.troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/861991
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to spread to USB devices (.Net source)
Creates autorun.inf (USB autostart)
Detected unpacking (changes PE section rights)
Disables the Windows task manager (taskmgr)
Drops PE files to the document folder of the user
Drops PE files to the startup folder
Drops PE files with benign system names
Injects a PE file into a foreign processes
Injects code into the Windows Explorer (explorer.exe)
Machine Learning detection for dropped file
Machine Learning detection for sample
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
PE file contains section with special chars
PE file has nameless sections
Sigma detected: System File Execution Location Anomaly
Uses dynamic DNS services
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: 494420 Sample: 3c844un5LH Startdate: 30/09/2021 Architecture: WINDOWS Score: 100 69 Malicious sample detected (through community Yara rule) 2->69 71 Antivirus detection for dropped file 2->71 73 Antivirus / Scanner detection for submitted sample 2->73 75 12 other signatures 2->75 10 3c844un5LH.exe 1 4 2->10         started        14 AcKpFLQqYx.exe 1 2->14         started        16 Explorer.exe 2->16         started        18 3 other processes 2->18 process3 file4 61 C:\Users\user\AppData\...\AcKpFLQqYx.exe, PE32 10->61 dropped 63 C:\Users\...\AcKpFLQqYx.exe:Zone.Identifier, ASCII 10->63 dropped 65 C:\Users\user\AppData\...\3c844un5LH.exe.log, ASCII 10->65 dropped 89 Detected unpacking (changes PE section rights) 10->89 91 Injects a PE file into a foreign processes 10->91 93 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 10->93 20 3c844un5LH.exe 4 10->20         started        95 Antivirus detection for dropped file 14->95 97 Machine Learning detection for dropped file 14->97 23 AcKpFLQqYx.exe 14->23         started        25 AcKpFLQqYx.exe 14->25         started        99 Injects code into the Windows Explorer (explorer.exe) 16->99 27 Explorer.exe 16->27         started        29 AcKpFLQqYx.exe 18->29         started        31 AcKpFLQqYx.exe 18->31         started        33 65ed37917c4238fcafbc7ab4f27cdda6Windows Update.exe 18->33         started        35 Microsoft Corporation.exe 18->35         started        signatures5 process6 file7 51 C:\Users\user\AppData\Local\Temp\server.exe, PE32 20->51 dropped 37 server.exe 1 20->37         started        process8 signatures9 77 Antivirus detection for dropped file 37->77 79 Multi AV Scanner detection for dropped file 37->79 81 Detected unpacking (changes PE section rights) 37->81 83 7 other signatures 37->83 40 server.exe 2 20 37->40         started        45 server.exe 37->45         started        process10 dnsIp11 67 baggard447.ddns.net 97.126.104.101, 1424, 49755, 49756 CENTURYLINK-US-LEGACY-QWESTUS United States 40->67 53 C:\system.exe, PE32 40->53 dropped 55 C:\Users\user\Favoritesxplorer.exe, PE32 40->55 dropped 57 C:\Users\user\Documentsxplorer.exe, PE32 40->57 dropped 59 11 other malicious files 40->59 dropped 85 Creates autorun.inf (USB autostart) 40->85 87 Disables the Windows task manager (taskmgr) 40->87 47 netsh.exe 1 3 40->47         started        file12 signatures13 process14 process15 49 conhost.exe 47->49         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/495135344619bad53ac992d52fb75b420130b856b65ceabad2748a4236bbd322/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-09-28 17:09:45 UTC
AV detection:
31 of 45 (68.89%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
02e942f8c34ceff45b57b50cd0790d3139c4903c6aec68d434e97e9c334dc76c
njrat
09ba1d1497c0886120a435a4990aba55b9ee83c96b294ff66c6fac4295c8b8a1
njrat
2664ca0874468958e3819f05885a3e52ffb392ac416cb5c5618031136aa2b438
njrat
71a0baa2c07547f62e47907ccfe44574a8eda034270492129c5bd2ed929bb4c6
njrat
883ec5f921750732339d92c7dcb6943040ec11d66a6cf9e7d7a3456a929a4b6e
njrat
b0e4ffe4f149f9b6435fec757518ae2ba99293d416a28a3aebda4e877c2013e0
njrat
bbee2132c158e1f3ca52fecfc2e0f3af061336e7dce9ad7a529191bf9d92491e
njrat
cb121700c196dd52b183b9ddf49fbce730bfe191fa1beae93ae6a162b33fd203
njrat
d5cf8749638c96e98d4daae21da684b45da35fc3800247054ea6e8275a51a09d
njrat
+ 19 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:target persistence trojan
Link:
https://tria.ge/reports/210930-pf2daahgdl/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
njRAT/Bladabindi
Malware Config
C2 Extraction:
YmFnZ2FyZDQ0Ny5kZG5zLm5ldAStrikStrik:MTQyNA==
Unpacked files
SH256 hash:
495135344619bad53ac992d52fb75b420130b856b65ceabad2748a4236bbd322
MD5 hash:
88d0f51fc3b2ef2240e380af7049e4d8
SHA1 hash:
e1c7afcd9d7f6a799bf31e0c18b3bdd8f606797b
Link:
https://www.unpac.me/results/27bf233a-81c2-4351-86c9-8b090e92acdd/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.49
Link:
https://yomi.yoroi.company/submissions/495135344619bad53ac992d52fb75b420130b856b65ceabad2748a4236bbd322

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: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/193577/

Comments