MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 431e12f989dd7a4c9d8235f4fa9f3e026a4b55921aa2fb4942563f857681f06c. 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: 18


Intelligence 18 IOCs 3 YARA 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 431e12f989dd7a4c9d8235f4fa9f3e026a4b55921aa2fb4942563f857681f06c
SHA3-384 hash: 19e869bbb77cc2e8effcb0a73419ecb53fa4f2ffdf059e9a330f2e9fdac3802422cca0a9b09240373b989420b7af1455
SHA1 hash: 12447834e3ce0745f5756f492aee4487c6c1cef4
MD5 hash: 1917739297383bb37d4f159e8540b70b
humanhash: steak-may-vermont-sierra
File name:1917739297383bb37d4f159e8540b70b.exe
Download: download sample
Signature njrat
Create hunting rule
File size:44'032 bytes
First seen:2024-12-28 20:05:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'859 x AgentTesla, 19'785 x Formbook, 12'305 x SnakeKeylogger)
ssdeep 384:HZyGdElQ5GoyyBrlr0DiEuEe83H/zIIij+ZsNO3PlpJKkkjh/TzF7pWnI/greT0k:5gmolyBr907NRuXQ/o1/+L
Threatray 565 similar samples on MalwareBazaar
TLSH T19F13E74CB694E174D5FF8BF1B4A2B2890B71A01BA806D30F99F154D94B73EC09A11EE7
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
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
3.127.138.57:11048

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
3.127.138.57:11048 https://threatfox.abuse.ch/ioc/1369096/
18.157.68.73:11048 https://threatfox.abuse.ch/ioc/1369097/
18.197.239.5:11048 https://threatfox.abuse.ch/ioc/1369098/

Intelligence

File Origin
# of uploads :
1
# of downloads :
557
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
njrat
Create hunting rule
ID:
1
File name:
1917739297383bb37d4f159e8540b70b.exe
Verdict:
Malicious activity
Analysis date:
2024-12-28 20:07:36 UTC
Tags:
rat njrat bladabindi remote
Link:
https://app.any.run/tasks/567b2b55-6a02-4536-ba8b-da25fbe7da2d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Sanesecurity.Malware.29063.UNOFFICIAL
Create hunting rule

Win.Packed.Msilperseus-9220094-0
Create hunting rule

Win.Packed.Generic-9795615-0
Create hunting rule

Win.Dropper.njRAT-10015886-0
Create hunting rule

Win.Dropper.Nanocore-10030076-0
Create hunting rule

Win.Trojan.Generic-6417450-0
Create hunting rule

Win.Packed.Krypt-6888233-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67705a2b75fb913a1478f737
Tags:
bladabindi autorun
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file in the %AppData% directory
Creating a process from a recently created file
Creating a file
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Enabling the 'hidden' option for recently created files
Creating a window
DNS request
Connection attempt
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm cmd dllhost keylogger lolbin njrat rat schtasks vbnet windows
Link:
https://www.filescan.io/uploads/67705a310dd45a148a40e165/reports/70a63425-eeec-41ec-b13e-0a7c17edc03f/overview
Verdict:
Malicious
Labled as:
Trojan.Bladabindi
Link:
https://www.hybrid-analysis.com/sample/431e12f989dd7a4c9d8235f4fa9f3e026a4b55921aa2fb4942563f857681f06c
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.
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4de10edf-4c3f-4e61-91e2-52231fb06c6e
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
phis.troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1581727
Signature
.NET source code contains potential unpacker
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Disables zone checking for all users
Drops PE files to the startup folder
Found malware configuration
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
Protects its processes via BreakOnTermination flag
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: System File Execution Location Anomaly
Suricata IDS alerts for network traffic
System process connects to network (likely due to code injection or exploit)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1581727 Sample: oiA5KmV0f0.exe Startdate: 28/12/2024 Architecture: WINDOWS Score: 100 36 2.tcp.eu.ngrok.io 2->36 44 Suricata IDS alerts for network traffic 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 11 other signatures 2->50 9 oiA5KmV0f0.exe 1 3 2->9         started        12 Server.exe 1 2->12         started        15 Dllhost.exe 1 2->15         started        17 7 other processes 2->17 signatures3 process4 file5 32 C:\Users\user\AppData\Roaming\Dllhost.exe, PE32 9->32 dropped 34 C:\Users\user\AppData\...\oiA5KmV0f0.exe.log, ASCII 9->34 dropped 19 Dllhost.exe 3 4 9->19         started        60 Antivirus detection for dropped file 12->60 62 Multi AV Scanner detection for dropped file 12->62 64 Machine Learning detection for dropped file 12->64 signatures6 process7 dnsIp8 38 18.156.13.209, 11048, 49782, 49791 AMAZON-02US United States 19->38 40 18.192.93.86, 11048, 50060, 50061 AMAZON-02US United States 19->40 42 2 other IPs or domains 19->42 28 C:\Users\user\AppData\...\Java update.exe, PE32 19->28 dropped 30 C:\Users\user\AppData\Local\Temp\Server.exe, PE32 19->30 dropped 52 Antivirus detection for dropped file 19->52 54 System process connects to network (likely due to code injection or exploit) 19->54 56 Multi AV Scanner detection for dropped file 19->56 58 5 other signatures 19->58 24 schtasks.exe 1 19->24         started        file9 signatures10 process11 process12 26 conhost.exe 24->26         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/431e12f989dd7a4c9d8235f4fa9f3e026a4b55921aa2fb4942563f857681f06c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/431e12f989dd7a4c9d8235f4fa9f3e026a4b55921aa2fb4942563f857681f06c/
Threat name:
ByteCode-MSIL.Backdoor.njRAT
Create hunting rule
Status:
Malicious
First seen:
2024-12-26 18:39:27 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
32 of 37 (86.49%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=impbf6mj3v5ezhmcgx2pvhz6ajvewvmsdkrpwskcky7yk5ub6bwa._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
28d2fae36503408b226325b6da83a7befe0ce4ef51853dbb56ee3efe21b05f66
njrat
556d747cf7796867d2ed4537d6a206d665f2555e9f53627fc1bc44147285df9a
njrat
7053364c34ad127e351736677b20987ae51fef387ddbb3253b845c09491a2a07
njrat
993aae6da26821d44cde30c3f7a1a5d72aecb9084c60aa6894fd1370edfc1675
njrat
9940bdc8730751af8177e0efced0099dbcb862697a6f547c55ed1503b1f465de
njrat
e50bc61300de2d3af137bcd1a5728219fac7e7635bb0ab6050ed4fa380038367
njrat
ef432c721d03728f4828aaecd2db265474fc13306b0d0f042df5025f2b4d9e2e
njrat
error
njrat
+ 555 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:hacked discovery persistence trojan
Link:
https://tria.ge/reports/241228-yvdefa1nas/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Drops startup file
Executes dropped EXE
Loads dropped DLL
Njrat family
njRAT/Bladabindi
Malware Config
C2 Extraction:
2.tcp.eu.ngrok.io:11048
Verdict:
Malicious
Tags:
rat njrat bladabindi Win.Packed.Msilperseus-9220094-0
YARA:
malware_Njrat_strings Windows_Trojan_Njrat_30f3c220 MAL_Njrat MALWARE_Win_NjRAT JPCERTCC_Njrat
Link:
https://app.threat.zone/submission/20563498-a89a-4191-9c0e-1a979364fc4d
Unpacked files
SH256 hash:
431e12f989dd7a4c9d8235f4fa9f3e026a4b55921aa2fb4942563f857681f06c
MD5 hash:
1917739297383bb37d4f159e8540b70b
SHA1 hash:
12447834e3ce0745f5756f492aee4487c6c1cef4
Link:
https://www.unpac.me/results/b1674d97-e721-49d8-b6b7-7f1da79efbf8/
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/431e12f989dd/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/431e12f989dd7a4c9d8235f4fa9f3e026a4b55921aa2fb4942563f857681f06c

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:CN_disclosed_20180208_c
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects malware from disclosed CN malware set
Reference:https://twitter.com/cyberintproject/status/961714165550342146
Rule name:CN_disclosed_20180208_c_RID2E71
Create hunting rule
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://twitter.com/cyberintproject/status/961714165550342146
Rule name:malware_Njrat_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect njRAT in memory
Rule name:MALWARE_Win_NjRAT
Create hunting rule
Author:ditekSHen
Description:Detects NjRAT / Bladabindi / NjRAT Golden
Rule name:MAL_njrat
Create hunting rule
Author:SECUINFRA Falcon Team
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
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:Njrat
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect njRAT in memory
Rule name:pe_imphash
Create hunting rule
Rule name:RAT_win_njrat
Create hunting rule
Author:KrknSec
Description:Detects njRAT binaries.
Reference:https://malpedia.caad.fkie.fraunhofer.de/details/win.njrat
Rule name:Skystars_LightDefender_Njrat_Rule
Create hunting rule
Author:Skystars LightDefender
Description:Detects Njrat
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule
Author:Elastic Security

File information

The table below shows additional information about this malware sample such as delivery method and external references.

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

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