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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7bb3ecf74443eae19f9310eb38eab31b9935498f81882b59658af864c729f6aa. 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: 13


Intelligence 13 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7bb3ecf74443eae19f9310eb38eab31b9935498f81882b59658af864c729f6aa
SHA3-384 hash: 02af01d25660029556eefbd79543f4afa4222d4a95e843ff88c7cd2a2cf90e783d9c1b59bd598a9625d825a43c9740a7
SHA1 hash: fb144ed302205b5481ecf280c9c0a2539a3864ca
MD5 hash: 9e622ccfb07cd8833d6115a3089dc8fa
humanhash: three-mississippi-bakerloo-september
File name:SecuriteInfo.com.FileRepMalware.14542.16900
Download: download sample
Signature njrat
Create hunting rule
File size:371'712 bytes
First seen:2024-03-04 13:33:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 720f62ecaae027b5c3ec6686644322e9 (13 x njrat, 8 x RevengeRAT, 4 x AgentTesla)
ssdeep 6144:clC2F8NXC796TB9vj48rUwVAXiCi05yV27wZWJwflv5YnaaGQ6:cveVQkTrvj4eXAXGZWJwfVQaap6
TLSH T1F084AE61E34481A3C86735FA09F19E74162B7D3E9275888766BE36285E323D3DC2718F
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 4dcf07331b4d2b8e (1 x njrat)
Reporter SecuriteInfoCom
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
392
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
njrat
Create hunting rule
ID:
1
File name:
7bb3ecf74443eae19f9310eb38eab31b9935498f81882b59658af864c729f6aa.exe
Verdict:
Malicious activity
Analysis date:
2024-03-04 13:34:07 UTC
Tags:
rat njrat bladabindi
Link:
https://app.any.run/tasks/901915bd-5434-43ef-a820-8ad41e85cd03

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.FileRepMalware.14542.16900.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file in the %temp% 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
Connection attempt
Enabling the 'hidden' option for recently created files
Launching the process to change the firewall settings
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Creating a file in the mass storage device
Enabling autorun by creating a file
Enabling threat expansion on mass storage devices
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fingerprint net_reactor packed packed
Link:
https://www.filescan.io/uploads/65e5cdcf6d7d2e6d2d8b8ed9/reports/30588188-e86e-415f-9c5c-a6981120e1c0/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/7bb3ecf74443eae19f9310eb38eab31b9935498f81882b59658af864c729f6aa
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/bc536258-4b95-4d6a-9b28-48db8d499a51
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
phis.troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1402769
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates autostart registry keys with suspicious names
Disables zone checking for all users
Drops PE files to the startup folder
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
Opens the same file many times (likely Sandbox evasion)
Protects its processes via BreakOnTermination flag
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: 1402769 Sample: SecuriteInfo.com.FileRepMal... Startdate: 04/03/2024 Architecture: WINDOWS Score: 100 45 Malicious sample detected (through community Yara rule) 2->45 47 Antivirus detection for dropped file 2->47 49 Antivirus / Scanner detection for submitted sample 2->49 51 6 other signatures 2->51 8 SecuriteInfo.com.FileRepMalware.14542.16900.exe 2 6 2->8         started        12 Trojan.exe 4 2->12         started        14 Trojan.exe 2->14         started        16 2 other processes 2->16 process3 file4 41 C:\Users\user\AppData\Local\Temp\Trojan.exe, PE32 8->41 dropped 61 Disables zone checking for all users 8->61 18 Trojan.exe 2 639 8->18         started        23 netsh.exe 2 12->23         started        25 netsh.exe 14->25         started        27 netsh.exe 16->27         started        signatures5 process6 dnsIp7 43 127.0.0.1 unknown unknown 18->43 39 C:\...\5cd8f17f4086744065eb0992a09e05a2.exe, PE32 18->39 dropped 53 Antivirus detection for dropped file 18->53 55 Multi AV Scanner detection for dropped file 18->55 57 Protects its processes via BreakOnTermination flag 18->57 59 6 other signatures 18->59 29 netsh.exe 2 18->29         started        31 conhost.exe 23->31         started        33 conhost.exe 25->33         started        35 conhost.exe 27->35         started        file8 signatures9 process10 process11 37 conhost.exe 29->37         started       
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/7bb3ecf74443eae19f9310eb38eab31b9935498f81882b59658af864c729f6aa
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7bb3ecf74443eae19f9310eb38eab31b9935498f81882b59658af864c729f6aa/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2013-01-09 22:37:00 UTC
File Type:
PE (Exe)
Extracted files:
11
AV detection:
15 of 37 (40.54%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=poz6z52eipvodh4tcdvtr2vtdomtksmpqgecwwlfrl4gjrzj62va._file
Verdict:
malicious
Result
Malware family:
n/a
Score:
  8/10
Tags:
evasion persistence
Link:
https://tria.ge/reports/240304-qt4agabd5y/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Adds Run key to start application
Checks computer location settings
Drops startup file
Executes dropped EXE
Loads dropped DLL
Modifies Windows Firewall
Unpacked files
SH256 hash:
cf0b6379c4308ad730a3737840b884b55aae3d3ab950119386dde9dcb5d1dcfc
MD5 hash:
613f48b6a3d02b3f00437a27c17e7ebf
SHA1 hash:
a8fb6d6654e62f6fb97dd860e5a776a81ead0ae7
Link:
https://www.unpac.me/results/504a6e8a-8a4c-4205-99fd-6fb394dd2e3c/
SH256 hash:
7bb3ecf74443eae19f9310eb38eab31b9935498f81882b59658af864c729f6aa
MD5 hash:
9e622ccfb07cd8833d6115a3089dc8fa
SHA1 hash:
fb144ed302205b5481ecf280c9c0a2539a3864ca
Link:
https://www.unpac.me/results/504a6e8a-8a4c-4205-99fd-6fb394dd2e3c/
Malware family:
RedNet
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/7bb3ecf74443/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/7bb3ecf74443eae19f9310eb38eab31b9935498f81882b59658af864c729f6aa

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

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
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetStartupInfoA
KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleA
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileA
KERNEL32.dll::CreateFileW

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