MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8943afed731d54a0ca6d311f9ababbe6d048b0dc1517b057f656d1cefa924432. 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 YARA 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8943afed731d54a0ca6d311f9ababbe6d048b0dc1517b057f656d1cefa924432
SHA3-384 hash: 16102fd8a5d05f0290029ee997ea32d009bc63bc6827ace1c0d0b3201e3abf558eefc8473255c3913ab95a87903f5c80
SHA1 hash: 06449cc4753674a75270a47be290f511ff200c50
MD5 hash: b4d4d16b8a8868f4b6579cf0eafefbcc
humanhash: batman-white-bakerloo-october
File name:b4d4d16b8a8868f4b6579cf0eafefbcc.exe
Download: download sample
Signature njrat
Create hunting rule
File size:7'547'113 bytes
First seen:2025-03-16 12:15:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:lF4yQJaBcLBl3NG1hB1Lwa8cJQ2cChcpcs//5XSryu8hjrEB0lGG9S4PWfIycgfv:n4yrPgEYou3qnDonJk
TLSH T166764B1078FB605AF2B3BED76ED8B596DE7BF2321A0A645E306213164902D81DC5273F
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
54.169.93.143:15725

Intelligence

File Origin
# of uploads :
1
# of downloads :
568
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b4d4d16b8a8868f4b6579cf0eafefbcc.exe
Verdict:
No threats detected
Analysis date:
2025-03-16 12:20:18 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/1c512975-0a5b-45cb-b1d8-daca0705e1d9

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67d6d61a08116ce425717a2c
Tags:
proxy njrat
Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Сreating synchronization primitives
Creating a process with a hidden window
Creating a window
DNS request
Connection attempt
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Launching the default Windows debugger (dwwin.exe)
Launching the process to change the firewall settings
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
evasive krypt obfuscated overlay
Link:
https://www.filescan.io/uploads/67d6c10a0a7899f357982c76/reports/6290f965-bc94-44a5-8ba2-96b47bd8be8f/overview
Verdict:
Malicious
Labled as:
MSIL.Krypt.Generic
Link:
https://www.hybrid-analysis.com/sample/8943afed731d54a0ca6d311f9ababbe6d048b0dc1517b057f656d1cefa924432
Result
Verdict:
MALICIOUS
Malware family:
Mimikatz
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ce43a5a1-ad07-48c8-9539-8621bcf17d1a
Result
Threat name:
Njrat, PureLog Stealer, zgRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1639885
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code contains process injector
.NET source code contains very large strings
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
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
Yara detected PureLog Stealer
Yara detected zgRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1639885 Sample: e7vNXyeU1F.exe Startdate: 16/03/2025 Architecture: WINDOWS Score: 100 59 0.tcp.ap.ngrok.io 2->59 67 Suricata IDS alerts for network traffic 2->67 69 Found malware configuration 2->69 71 Malicious sample detected (through community Yara rule) 2->71 73 12 other signatures 2->73 10 e7vNXyeU1F.exe 1 2->10         started        14 e7vNXyeU1F.exe 2->14         started        16 e7vNXyeU1F.exe 2->16         started        18 3 other processes 2->18 signatures3 process4 file5 57 C:\Users\user\AppData\...\e7vNXyeU1F.exe.log, ASCII 10->57 dropped 79 Injects a PE file into a foreign processes 10->79 20 e7vNXyeU1F.exe 2 10->20         started        22 SgrmBroker.exe 1 10->22         started        24 e7vNXyeU1F.exe 14->24         started        26 e7vNXyeU1F.exe 16->26         started        28 e7vNXyeU1F.exe 18->28         started        30 e7vNXyeU1F.exe 18->30         started        32 e7vNXyeU1F.exe 18->32         started        signatures6 process7 process8 34 aspnet_regbrowsers.exe 1 2 20->34         started        38 WerFault.exe 24->38         started        41 WerFault.exe 26->41         started        43 WerFault.exe 4 28->43         started        45 WerFault.exe 4 30->45         started        47 WerFault.exe 32->47         started        dnsIp9 61 0.tcp.ap.ngrok.io 52.74.74.86, 15725, 49695, 49696 AMAZON-02US United States 34->61 63 52.77.3.235, 15725, 49719, 49720 AMAZON-02US United States 34->63 65 3.1.16.19 AMAZON-02US United States 34->65 75 Uses netsh to modify the Windows network and firewall settings 34->75 77 Modifies the windows firewall 34->77 49 netsh.exe 2 34->49         started        53 C:\ProgramData\Microsoft\...\Report.wer, Unicode 38->53 dropped 55 C:\ProgramData\Microsoft\...\Report.wer, Unicode 41->55 dropped file10 signatures11 process12 process13 51 conhost.exe 49->51         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8943afed731d54a0ca6d311f9ababbe6d048b0dc1517b057f656d1cefa924432
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8943afed731d54a0ca6d311f9ababbe6d048b0dc1517b057f656d1cefa924432/
Threat name:
ByteCode-MSIL.Trojan.Dothetuk
Create hunting rule
Status:
Malicious
First seen:
2025-03-12 15:41:24 UTC
File Type:
PE (.Net Exe)
Extracted files:
22
AV detection:
27 of 36 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rfb273ltdvkkbstngepzvov343iermg4cul3av7wk3i456usiqza._file
Verdict:
malicious
Label(s):
gameloader
Create hunting rule
Similar samples:
error
njrat
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:hacked defense_evasion discovery persistence privilege_escalation trojan
Link:
https://tria.ge/reports/250316-pfhk6sz1gz/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Event Triggered Execution: Netsh Helper DLL
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Legitimate hosting services abused for malware hosting/C2
Modifies Windows Firewall
Njrat family
njRAT/Bladabindi
Malware Config
C2 Extraction:
0.tcp.ap.ngrok.io:15725
Verdict:
Malicious
Tags:
Win.Packed.Msilheracles-10020638-0 njrat bladabindi
YARA:
n/a
Link:
https://app.threat.zone/submission/306ee64a-1f9b-4f94-877f-7322748987f5
Unpacked files
SH256 hash:
8943afed731d54a0ca6d311f9ababbe6d048b0dc1517b057f656d1cefa924432
MD5 hash:
b4d4d16b8a8868f4b6579cf0eafefbcc
SHA1 hash:
06449cc4753674a75270a47be290f511ff200c50
Link:
https://www.unpac.me/results/2d039b95-a55f-4a11-b3d2-0638591fd5bf/
SH256 hash:
53f64e921748bf33bc9edfdcec89b63f1a030c9f6405451f2a4fd378751a4146
MD5 hash:
e54c3017df814dd44c51eb22364f2da3
SHA1 hash:
319d9ad46f3ca7485452cae3ff87a8542c12a41d
Link:
https://www.unpac.me/results/2d039b95-a55f-4a11-b3d2-0638591fd5bf/
SH256 hash:
691fb82c3f78a49086c6f61747195cde07448d2c03cc91b1889b407c50183c98
MD5 hash:
0f2c0e9e783f4f06a09e4e65653aa950
SHA1 hash:
55f721bdd5cc1614771e339b1a9d4829e8fb5908
Link:
https://www.unpac.me/results/2d039b95-a55f-4a11-b3d2-0638591fd5bf/
SH256 hash:
d27713f12afd66977ec506b70f13a555704183af3000b2932ae4704c5f96afbd
MD5 hash:
789d46eea97cc71d3c00c644f9859398
SHA1 hash:
2ffe716a96428eac13ed5195102c1258724401b9
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
INDICATOR_EXE_Packed_DotNetReactor
Create hunting rule
Link:
https://www.unpac.me/results/2d039b95-a55f-4a11-b3d2-0638591fd5bf/
SH256 hash:
b5ad634666242bf629fb0367bc1ef95795f207e5c23796a66613a320ad603760
MD5 hash:
40db078bcb269436b23a19a525102d80
SHA1 hash:
e46bca868f171426b47cef66069b661b04b73641
Detections:
win_njrat_g1
Create hunting rule
win_njrat_w1
Create hunting rule
NjRat
Create hunting rule
MALWARE_Win_NjRAT
Create hunting rule
Link:
https://www.unpac.me/results/2d039b95-a55f-4a11-b3d2-0638591fd5bf/
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8943afed731d/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/8943afed731d54a0ca6d311f9ababbe6d048b0dc1517b057f656d1cefa924432

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: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
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: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)
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule
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 (GUARD_CF)high

Comments