MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fd11715f74c03c006abf3d00ef802d9ed283ffa17ded36537b2d240757185fbc. 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: 15


Intelligence 15 IOCs YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fd11715f74c03c006abf3d00ef802d9ed283ffa17ded36537b2d240757185fbc
SHA3-384 hash: aa6d7f37fe8d1ae0efbbaf9d6b944b15795a079ac6a48749847af23abf0730876fa82cb28155ccdff61bdda925ea5529
SHA1 hash: 43bd2d93b20f8182e9430c591112528ddff70d96
MD5 hash: b8be830761cffe0318708a42ec81df42
humanhash: florida-don-wyoming-tango
File name:b8be830761cffe0318708a42ec81df42.exe
Download: download sample
Signature njrat
Create hunting rule
File size:1'147'392 bytes
First seen:2023-03-09 01:10:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 2e5467cba76f44a088d39f78c5e807b6 (131 x DCRat, 112 x njrat, 79 x RedLineStealer)
ssdeep 24576:q7KlB2TWF1jfBfUuG9SdhdYyTXIOxRMWHPB0J7irik:qKnBDGYFTXIOfXvBki/
Threatray 3 similar samples on MalwareBazaar
TLSH T12F35238DB02B915ACCCD99FF045CA2E4AECD78849CEBFE1ED76BE6748055D490C8142B
TrID 25.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
19.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
17.1% (.EXE) Win32 Executable (generic) (4505/5/1)
7.8% (.EXE) Win16/32 Executable Delphi generic (2072/23)
7.8% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
3.124.67.191:17409

Intelligence

File Origin
# of uploads :
1
# of downloads :
255
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
njrat
Create hunting rule
ID:
1
File name:
b8be830761cffe0318708a42ec81df42.exe
Verdict:
Malicious activity
Analysis date:
2023-03-09 01:11:01 UTC
Tags:
rat njrat bladabindi
Link:
https://app.any.run/tasks/53ac8207-d1f3-49c3-ba51-653f8aac8cf3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Njrat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/372799/
Detection(s):
Win.Packed.Enigma-9838336-0
Create hunting rule

PUA.Win.Packer.EnigmaProtector-9852682-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Searching for analyzing tools
Creating a window
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
Sending a custom TCP request
Enabling the 'hidden' option for recently created files
Launching the process to change network settings
Searching for synchronization primitives
Using the Windows Management Instrumentation requests
Launching the process to change the firewall settings
Creating a file in the mass storage device
Query of malicious DNS domain
Sending a TCP request to an infection source
Enabling autorun by creating a file
Enabling threat expansion on mass storage devices
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
67%
Tags:
obfuscated packed shell32.dll
Link:
https://www.filescan.io/uploads/64093226aa9d4ecc35bc4953/reports/ce13a1ca-c6c5-48fe-afd5-f374e3d1a622/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/fd11715f74c03c006abf3d00ef802d9ed283ffa17ded36537b2d240757185fbc
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/63525c78-e3de-445e-b0de-01e38eaf6097
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
spre.troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1189948
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Creates autorun.inf (USB autostart)
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Drops PE files to the startup folder
Hides threads from debuggers
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
PE file has nameless sections
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (window names)
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: 822823 Sample: BS2mnnATPz.exe Startdate: 09/03/2023 Architecture: WINDOWS Score: 100 44 7.tcp.eu.ngrok.io 2->44 60 Snort IDS alert for network traffic 2->60 62 Multi AV Scanner detection for domain / URL 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 13 other signatures 2->66 9 BS2mnnATPz.exe 7 2->9         started        13 Microsoft Corporation.exe 3 2->13         started        signatures3 process4 file5 40 C:\Users\user\AppData\Roaming\server.exe, PE32 9->40 dropped 42 C:\Users\user\AppData\...\BS2mnnATPz.exe.log, ASCII 9->42 dropped 68 Detected unpacking (changes PE section rights) 9->68 70 Detected unpacking (overwrites its own PE header) 9->70 72 Hides threads from debuggers 9->72 15 server.exe 1 10 9->15         started        signatures6 process7 dnsIp8 46 3.124.67.191, 17409, 49696, 49698 AMAZON-02US United States 15->46 48 7.tcp.eu.ngrok.io 3.126.224.214, 17409, 49695, 49697 AMAZON-02US United States 15->48 50 35.157.111.131, 17409, 49699, 49701 AMAZON-02US United States 15->50 32 C:\Users\user\...\Microsoft Corporation.exe, PE32 15->32 dropped 34 363e8c71caf0837ec9...fWindows Update.exe, PE32 15->34 dropped 36 C:\Umbrella.flv.exe, PE32 15->36 dropped 38 C:\autorun.inf, Microsoft 15->38 dropped 52 Antivirus detection for dropped file 15->52 54 Multi AV Scanner detection for dropped file 15->54 56 Detected unpacking (changes PE section rights) 15->56 58 6 other signatures 15->58 20 netsh.exe 3 15->20         started        22 netsh.exe 3 15->22         started        24 netsh.exe 3 15->24         started        file9 signatures10 process11 process12 26 conhost.exe 20->26         started        28 conhost.exe 22->28         started        30 conhost.exe 24->30         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/fd11715f74c03c006abf3d00ef802d9ed283ffa17ded36537b2d240757185fbc/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2023-03-04 01:50:05 UTC
File Type:
PE (Exe)
AV detection:
25 of 39 (64.10%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7uixcx3uya6aa2v7huao7abnt3jih75bpxwtmu33fusaovyyl66a._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
1cc62bcf5d8ec1beb8d7414e95aac964b31d0fcdca01f5dabfbd979ba7f44ad9
njrat
d31dd64e3df970a07d7a59d0f2d65d12dfeb09fb48605daedcb2863f6bc7c77e
njrat
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat evasion trojan
Link:
https://tria.ge/reports/230309-bjxydahh75/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops autorun.inf file
Suspicious use of NtSetInformationThreadHideFromDebugger
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Drops startup file
Executes dropped EXE
Loads dropped DLL
Modifies Windows Firewall
njRAT/Bladabindi
Unpacked files
SH256 hash:
fd11715f74c03c006abf3d00ef802d9ed283ffa17ded36537b2d240757185fbc
MD5 hash:
b8be830761cffe0318708a42ec81df42
SHA1 hash:
43bd2d93b20f8182e9430c591112528ddff70d96
Link:
https://www.unpac.me/results/080a62d5-51de-4b1f-8b25-2dd798311e84/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.88
Link:
https://yomi.yoroi.company/submissions/fd11715f74c03c006abf3d00ef802d9ed283ffa17ded36537b2d240757185fbc

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:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:EnigmaStub
Create hunting rule
Author:@bartblaze
Description:Identifies Enigma packer stub.
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
Rule name:MAL_njrat
Create hunting rule
Author:SECUINFRA Falcon Team
Rule name:pe_imphash
Create hunting rule
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:SUSP_XORed_URL_in_EXE
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:SUSP_XORed_URL_in_EXE_RID2E46
Create hunting rule
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule
Author:Elastic Security
Rule name:win_smominru_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.smominru.

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/372799/

Comments