MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 55d8e7afc8b28613ee7b43af4b3e1662377863946a393fbb8f56ee5bed3c1763. 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: 17


Intelligence 17 IOCs 4 YARA 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 55d8e7afc8b28613ee7b43af4b3e1662377863946a393fbb8f56ee5bed3c1763
SHA3-384 hash: 24121e74a55c9f218909dfc4ad44b2d4a90eaccba3f7d9547f89789457f6ae175a429dad7f4fc02985106932b20a028e
SHA1 hash: 6a8a4f574c64606362d82c622089f1ba9959284b
MD5 hash: 595a30b0b11b295a8b4231ff14a40875
humanhash: colorado-leopard-kansas-sixteen
File name:595a30b0b11b295a8b4231ff14a40875.exe
Download: download sample
Signature njrat
Create hunting rule
File size:37'888 bytes
First seen:2024-10-10 09:00:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'854 x AgentTesla, 19'783 x Formbook, 12'304 x SnakeKeylogger)
ssdeep 384:qmOs0IiejvCVLO309QmykrtG+dA+Vd7wvOSiKrAF+rMRTyN/0L+EcoinblneHQM+:0FdGdkrgYH7wWS9rM+rMRa8NutBt
TLSH T1B1032A4D7FE181A8C4FD067B05B2D41207BAE04B6E23DD0E8EE564EA37636C58B54AF1
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:
3.74.27.83:14987

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
3.74.27.83:14987 https://threatfox.abuse.ch/ioc/1335474/
18.192.31.30:14987 https://threatfox.abuse.ch/ioc/1335475/
3.71.225.231:14987 https://threatfox.abuse.ch/ioc/1335476/
3.78.28.71:14987 https://threatfox.abuse.ch/ioc/1335477/

Intelligence

File Origin
# of uploads :
1
# of downloads :
500
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
njrat
Create hunting rule
ID:
1
File name:
595a30b0b11b295a8b4231ff14a40875.exe
Verdict:
Malicious activity
Analysis date:
2024-10-10 09:42:43 UTC
Tags:
njrat rat bladabindi remote
Link:
https://app.any.run/tasks/67b60b73-f6bf-413f-ab3b-5eb5257f42ce

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Sanesecurity.Malware.29039.UNOFFICIAL
Create hunting rule

Win.Packed.Bladabindi-7994427-0
Create hunting rule

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

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

Win.Trojan.Generic-6454614-0
Create hunting rule

Win.Trojan.Generic-6454615-0
Create hunting rule

Win.Trojan.B-468
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=670797d8f936b5621b0c3065
Tags:
Bladabindi Crimsonrat Powershell Proxy
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
backdoor cmd explorer fingerprint keylogger lolbin netsh njrat rat stealer vbnet
Link:
https://www.filescan.io/uploads/670797d1a617144147820fa2/reports/551fa341-5c8b-4dbe-beaf-666483c251cd/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/55d8e7afc8b28613ee7b43af4b3e1662377863946a393fbb8f56ee5bed3c1763
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:
Mimikatz
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/98f9bbd9-ba0e-420f-a0b1-74f5b5e0bc23
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1530668
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Connects to many ports of the same IP (likely port scanning)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Uses netsh to modify the Windows network and firewall settings
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/55d8e7afc8b28613ee7b43af4b3e1662377863946a393fbb8f56ee5bed3c1763
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/55d8e7afc8b28613ee7b43af4b3e1662377863946a393fbb8f56ee5bed3c1763/
Threat name:
ByteCode-MSIL.Backdoor.njRAT
Create hunting rule
Status:
Malicious
First seen:
2024-10-07 22:45:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
36 of 38 (94.74%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=kxmopl6iwkdbh3t3ioxuwpqwmi3xqy4uni4t7o4pk3xfx3j4c5rq._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
error
njrat
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:hacked discovery evasion persistence privilege_escalation
Link:
https://tria.ge/reports/241010-kyv7rsyalm/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Event Triggered Execution: Netsh Helper DLL
System Location Discovery: System Language Discovery
Legitimate hosting services abused for malware hosting/C2
Modifies Windows Firewall
Malware Config
C2 Extraction:
0.tcp.eu.ngrok.io:14987
Verdict:
Malicious
Tags:
rat njrat
YARA:
Windows_Trojan_Njrat_30f3c220 MALWARE_Win_NjRAT
Link:
https://app.threat.zone/submission/5e0b78dd-bd9e-402a-b192-daea5832f1ca
Unpacked files
SH256 hash:
55d8e7afc8b28613ee7b43af4b3e1662377863946a393fbb8f56ee5bed3c1763
MD5 hash:
595a30b0b11b295a8b4231ff14a40875
SHA1 hash:
6a8a4f574c64606362d82c622089f1ba9959284b
Detections:
NjRat
Create hunting rule
win_njrat_w1
Create hunting rule
win_njrat_g1
Create hunting rule
MALWARE_Win_NjRAT
Create hunting rule
Link:
https://www.unpac.me/results/e05e583b-9dbd-4fe0-aaa0-7bb0ac1a7a38/
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/55d8e7afc8b28613ee7b43af4b3e1662377863946a393fbb8f56ee5bed3c1763

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:ByteCode_MSIL_Backdoor_NjRAT
Create hunting rule
Author:ReversingLabs
Description:Yara rule that detects NjRAT backdoor.
Rule name:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:MALWARE_Win_NjRAT
Create hunting rule
Author:ditekSHen
Description:Detects NjRAT / Bladabindi / NjRAT Golden
Rule name:Mal_WIN_NjRAT_RAT_PE
Create hunting rule
Author:Phatcharadol Thangplub
Description:Use to detect NjRAT implant.
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
Rule name:SUSP_netsh_firewall_command
Create hunting rule
Author:SECUINFRA Falcon Team
Rule name:SUSP_Ngrok_URL
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects a PE file that contains an ngrok.io URL. This can be used as C2 channel
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule
Author:Elastic Security
Rule name:win_njrat_w1
Create hunting rule
Author:Brian Wallace @botnet_hunter <bwall@ballastsecurity.net>
Description:Identify njRat

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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