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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a20a139df9679bb179af6f1eb0edcb2fe89d4891daf6b0e0c5a35cf4dcea0210. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a20a139df9679bb179af6f1eb0edcb2fe89d4891daf6b0e0c5a35cf4dcea0210
SHA3-384 hash: dcc21367ae25875c4f090f8768cfd425b19d5f5975b7658420377180c80e81ff50953d50308d2890cf029fdb0604087d
SHA1 hash: 42c39449a01c6e5f069e837f85c9811677a1cd7b
MD5 hash: 3b196fd18fb71b5249c4d88ad469985b
humanhash: montana-california-spaghetti-vegan
File name:SecuriteInfo.com.MSIL.Dropper-ABP.10968.24361
Download: download sample
Signature njrat
Create hunting rule
File size:279'472 bytes
First seen:2025-03-30 19:56:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'245 x AgentTesla, 20'500 x Formbook, 12'374 x SnakeKeylogger)
ssdeep 6144:lO6v9ukljUnrFHdBLE0PvIC3FnL0n9bOuJ/OE:lO6HA1bLhSOuJ
TLSH T1E754E817FB48C722D92118F1F6EF062287A3AD8B5631A6423D8E63168F93597DC53E07
TrID 51.8% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
22.1% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
7.4% (.EXE) Win64 Executable (generic) (10522/11/4)
4.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika pebin
Reporter SecuriteInfoCom
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
429
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
njrat
Create hunting rule
ID:
1
File name:
SecuriteInfo.com.MSIL.Dropper-ABP.10968.24361
Verdict:
Malicious activity
Analysis date:
2025-03-30 19:59:46 UTC
Tags:
rat njrat bladabindi netreactor
Link:
https://app.any.run/tasks/6eafe0df-1fed-4bf4-ae71-070f6ff9c026

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67e9a3b1855e5ec5240a71dd
Tags:
micro spawn sage
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 process with a hidden window
Creating a window
Searching for synchronization primitives
DNS request
Launching the process to change the firewall settings
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cryptor_detected keylogger net_reactor njrat obfuscated overlay packed packed rat vbnet
Link:
https://www.filescan.io/uploads/67e9a228631830704a8b7b66/reports/8db2793f-33ab-4ab4-8ff6-3bbfa65a1b0b/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/a20a139df9679bb179af6f1eb0edcb2fe89d4891daf6b0e0c5a35cf4dcea0210
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/cd82686e-d8da-48ce-b2e7-47751c821e07
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
phis.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1652340
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates autostart registry keys with suspicious names
Disables zone checking for all users
Found malware configuration
Joe Sandbox ML detected suspicious 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
Uses dynamic DNS services
Uses netsh to modify the Windows network and firewall settings
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1652340 Sample: SecuriteInfo.com.MSIL.Dropp... Startdate: 30/03/2025 Architecture: WINDOWS Score: 100 29 aboudking.ddns.net 2->29 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Antivirus / Scanner detection for submitted sample 2->43 47 4 other signatures 2->47 9 SecuriteInfo.com.MSIL.Dropper-ABP.10968.24361.exe 1 5 2->9         started        12 server.exe 3 2->12         started        14 server.exe 2 2->14         started        16 server.exe 2 2->16         started        signatures3 45 Uses dynamic DNS services 29->45 process4 file5 25 C:\Users\user\AppData\Roaming\server.exe, PE32 9->25 dropped 27 SecuriteInfo.com.M...10968.24361.exe.log, ASCII 9->27 dropped 18 server.exe 4 4 9->18         started        process6 signatures7 31 Antivirus detection for dropped file 18->31 33 Multi AV Scanner detection for dropped file 18->33 35 Disables zone checking for all users 18->35 37 3 other signatures 18->37 21 netsh.exe 2 18->21         started        process8 process9 23 conhost.exe 21->23         started       
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a20a139df9679bb179af6f1eb0edcb2fe89d4891daf6b0e0c5a35cf4dcea0210
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a20a139df9679bb179af6f1eb0edcb2fe89d4891daf6b0e0c5a35cf4dcea0210/
Threat name:
ByteCode-MSIL.Backdoor.Ratenjay
Create hunting rule
Status:
Malicious
First seen:
2025-03-30 19:57:26 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uifbhhpzm6n3c6npn4plb3olf7uj2ser3l3lbygfunopjxhkaiia._file
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat defense_evasion discovery persistence privilege_escalation trojan
Link:
https://tria.ge/reports/250330-ypds1sxr18/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Event Triggered Execution: Netsh Helper DLL
System Location Discovery: System Language Discovery
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Modifies Windows Firewall
Njrat family
njRAT/Bladabindi
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/f4b60717-518d-43ba-b4ce-c495776c7458
Unpacked files
SH256 hash:
a20a139df9679bb179af6f1eb0edcb2fe89d4891daf6b0e0c5a35cf4dcea0210
MD5 hash:
3b196fd18fb71b5249c4d88ad469985b
SHA1 hash:
42c39449a01c6e5f069e837f85c9811677a1cd7b
Link:
https://www.unpac.me/results/80878041-c539-49ba-9c0a-e12df84ff4d2/
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/a20a139df9679bb179af6f1eb0edcb2fe89d4891daf6b0e0c5a35cf4dcea0210

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:DotNet_Reactor
Create hunting rule
Author:@bartblaze
Description:Identifies .NET Reactor, which offers .NET code protection such as obfuscation, encryption and so on.
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:PureCrypter
Create hunting rule
Author:@bartblaze
Description:Identifies PureCrypter, .NET loader and obfuscator.
Reference:https://malpedia.caad.fkie.fraunhofer.de/details/win.purecrypter
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

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_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments