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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0a8211806999ec0c57cabc1ef48df7c9ec926839193f5ac5b4ec51f4e4157497. 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: 15


Intelligence 15 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0a8211806999ec0c57cabc1ef48df7c9ec926839193f5ac5b4ec51f4e4157497
SHA3-384 hash: 943b06a3a0e1c0f7ffbef741d2548f06b2dcc16556abe04a23067423940d3405383d51157d111a5ab7446ec6042ee26a
SHA1 hash: 5b0020012b7e16ba724b5b1816d593c42f3f00e6
MD5 hash: 17fecde87955903253ddcdd6c8a64fb4
humanhash: arkansas-leopard-music-violet
File name:splwow64.exe
Download: download sample
Signature njrat
Create hunting rule
File size:113'664 bytes
First seen:2025-05-01 21:37:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'287 x AgentTesla, 20'688 x Formbook, 12'401 x SnakeKeylogger)
ssdeep 1536:q+bcskqLzECafbX39MNrQZJpIBVt3A7HPd4n+lbeRZIbSQPY2v:qmch6ECafbX398JBHQbPRyZ2pPY2
TLSH T13AB38C043798D11BD7DC0979E8E243A482B2BE636A02D75F2CC4B6AE1D327D719129F7
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
File icon (PE):PE icon
dhash icon 6960e896228a6968 (3 x CoinMiner, 2 x AsyncRAT, 1 x AgentTesla)
Reporter adm1n_usa32
Tags:AsyncRAT BoratRAT exe NjRAT


Avatar
adm1n_usa32
confusing name lol

Intelligence

File Origin
# of uploads :
1
# of downloads :
561
Origin country :
US US
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
splwow64.exe
Verdict:
Malicious activity
Analysis date:
2025-05-01 21:36:12 UTC
Tags:
borat rat asyncrat
Link:
https://app.any.run/tasks/59b34af6-3dbc-47e5-9cb0-00167246b3b1

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/5660/
Detection(s):
Win.Malware.Msilzilla-9949767-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6813ebc14355f44aee680bc4
Tags:
autorun njrat
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Creating a file
Launching a process
Creating a process from a recently created file
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
njrat njrat obfuscated obfuscated rat reconnaissance vbnet
Link:
https://www.filescan.io/uploads/6813e9bf0b64e174c413d039/reports/95fced65-c198-4b46-b632-e66bbbe8419e/overview
Verdict:
Malicious
Labled as:
Jalapeno.Generic
Link:
https://www.hybrid-analysis.com/sample/0a8211806999ec0c57cabc1ef48df7c9ec926839193f5ac5b4ec51f4e4157497
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e126a143-ed93-4625-bc99-7be2021884c3
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1679456
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Protects its processes via BreakOnTermination flag
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1679456 Sample: splwow64.exe Startdate: 01/05/2025 Architecture: WINDOWS Score: 100 32 Antivirus / Scanner detection for submitted sample 2->32 34 Multi AV Scanner detection for submitted file 2->34 36 .NET source code contains potential unpacker 2->36 38 3 other signatures 2->38 7 splwow64.exe 7 2->7         started        11 printsrvice.exe 2 2->11         started        process3 file4 28 C:\Users\user\AppData\...\printsrvice.exe, PE32 7->28 dropped 30 C:\Users\user\AppData\...\splwow64.exe.log, CSV 7->30 dropped 40 Protects its processes via BreakOnTermination flag 7->40 42 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->42 13 cmd.exe 1 7->13         started        16 cmd.exe 1 7->16         started        44 Antivirus detection for dropped file 11->44 46 Multi AV Scanner detection for dropped file 11->46 signatures5 process6 signatures7 48 Uses schtasks.exe or at.exe to add and modify task schedules 13->48 18 conhost.exe 13->18         started        20 schtasks.exe 1 13->20         started        22 printsrvice.exe 3 16->22         started        24 conhost.exe 16->24         started        26 timeout.exe 1 16->26         started        process8
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/0a8211806999ec0c57cabc1ef48df7c9ec926839193f5ac5b4ec51f4e4157497
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0a8211806999ec0c57cabc1ef48df7c9ec926839193f5ac5b4ec51f4e4157497/
Threat name:
ByteCode-MSIL.Backdoor.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2024-12-20 12:35:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
26
AV detection:
30 of 36 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=bkbbdadjthwayv6kxqppjdpxzhwje2bzde7vvrnu5ri7jzavoslq._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
error
njrat
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/250501-1g2wzsgj4w/
Behaviour
Delays execution with timeout.exe
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Checks computer location settings
Executes dropped EXE
Verdict:
Malicious
Tags:
Win.Malware.Msilzilla-9949767-0
YARA:
n/a
Link:
https://app.threat.zone/submission/8f3c8cbf-e43b-4cec-b23d-9ea6d7b9dc06
Unpacked files
SH256 hash:
0a8211806999ec0c57cabc1ef48df7c9ec926839193f5ac5b4ec51f4e4157497
MD5 hash:
17fecde87955903253ddcdd6c8a64fb4
SHA1 hash:
5b0020012b7e16ba724b5b1816d593c42f3f00e6
Link:
https://www.unpac.me/results/a37d9e75-96ee-4862-9927-3985cdaeb736/
Malware family:
DCRat
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/0a8211806999/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/0a8211806999ec0c57cabc1ef48df7c9ec926839193f5ac5b4ec51f4e4157497

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:MAL_AsnycRAT
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:MAL_AsyncRAT_Config_Decryption
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:Njrat
Create hunting rule
Author:botherder https://github.com/botherder
Description:Njrat
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.

anyrun
any.run
https://app.any.run/tasks/59b34af6-3dbc-47e5-9cb0-00167246b3b1
Cape
Cape
https://www.capesandbox.com/analysis/5660/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments