MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 83a4a3957a752185873961a6c761e7b8f2883379978dc2940c03278d1341e086. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 83a4a3957a752185873961a6c761e7b8f2883379978dc2940c03278d1341e086
SHA3-384 hash: 24e3076f0e3de0607a69af5bf20899230b1ba6a72336be96d826d89ca0506c33633c1d77b9b1361309fa9d43ad48b041
SHA1 hash: 9dd426f1aa71167d0ecbb5d96e45d7881a63bfb0
MD5 hash: 352b4546e4c6de03f7351b6200eebeff
humanhash: robert-magnesium-london-monkey
File name:352b4546e4c6de03f7351b6200eebeff.exe
Download: download sample
Signature njrat
Create hunting rule
File size:1'146'880 bytes
First seen:2022-11-16 13:20:26 UTC
Last seen:2022-11-16 14:51:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 2e5467cba76f44a088d39f78c5e807b6 (131 x DCRat, 112 x njrat, 79 x RedLineStealer)
ssdeep 24576:4rS13op8jYSlh5Y7daUCqLSjGEot9tHahHHR/VHEtp5V2:60N/Y7dp7LmA9tWnzHE75V
TLSH T1163523E457A75D80CF314FF4B66309E267AD04D04914CFEC86E1BCCBD2EC55AEA42A92
TrID 27.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
20.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
18.5% (.EXE) Win32 Executable (generic) (4505/5/1)
8.5% (.EXE) Win16/32 Executable Delphi generic (2072/23)
8.3% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
18.136.148.247:10233

Intelligence

File Origin
# of uploads :
2
# of downloads :
186
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
njrat
Create hunting rule
ID:
1
File name:
352b4546e4c6de03f7351b6200eebeff.exe
Verdict:
Malicious activity
Analysis date:
2022-11-16 13:22:54 UTC
Tags:
trojan rat njrat bladabindi
Link:
https://app.any.run/tasks/5fb201ea-c250-4c7a-a41c-e7baecda1f40

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/334843/
Detection(s):
PUA.Win.Packer.EnigmaProtector-19
Create hunting rule

PUA.Win.Packer.EnigmaProtector-1
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 with a hidden window
Enabling the 'hidden' option for analyzed file
Creating a file
Launching the process to change network settings
Searching for synchronization primitives
DNS request
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Launching the process to change the firewall settings
Creating a file in the mass storage device
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed shell32.dll
Link:
https://www.filescan.io/uploads/6374e3c34cfa4744015c6675/reports/1b272f65-b2f8-41ef-b129-db22edf98442/overview
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6e866c05-23a5-4877-8d89-36e664694fb2
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
spre.troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1114853
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to spread to USB devices (.Net source)
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 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: 747549 Sample: JlqL6KFVFc.exe Startdate: 16/11/2022 Architecture: WINDOWS Score: 100 35 0.tcp.ap.ngrok.io 2->35 43 Snort IDS alert for network traffic 2->43 45 Multi AV Scanner detection for domain / URL 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 14 other signatures 2->49 8 JlqL6KFVFc.exe 1 17 2->8         started        13 wsappx.exe 3 2->13         started        signatures3 process4 dnsIp5 37 13.229.3.203, 10233, 49722, 49724 AMAZON-02US United States 8->37 39 0.tcp.ap.ngrok.io 18.136.148.247, 10233, 49713, 49716 AMAZON-02US United States 8->39 41 3 other IPs or domains 8->41 27 C:\wsappx.exe, PE32 8->27 dropped 29 C:\Users\user\AppData\Roaming\...\wsappx.exe, PE32 8->29 dropped 31 6ec0447ca6306b98d0...c15933e25wsappx.exe, PE32 8->31 dropped 33 4 other malicious files 8->33 dropped 51 Drops PE files to the startup folder 8->51 53 Uses netsh to modify the Windows network and firewall settings 8->53 55 Modifies the windows firewall 8->55 15 netsh.exe 3 8->15         started        17 netsh.exe 3 8->17         started        19 netsh.exe 3 8->19         started        57 Hides threads from debuggers 13->57 file6 signatures7 process8 process9 21 conhost.exe 15->21         started        23 conhost.exe 17->23         started        25 conhost.exe 19->25         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/83a4a3957a752185873961a6c761e7b8f2883379978dc2940c03278d1341e086/
Threat name:
Win32.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2022-11-13 22:53:50 UTC
File Type:
PE (Exe)
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qoskhfl2ouqylbzzmgtmoyphxdziqm3zs6g4ffamamty2e2b4cda._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Result
Malware family:
n/a
Score:
  8/10
Tags:
evasion
Link:
https://tria.ge/reports/221116-qlnj2sba52/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of NtSetInformationThreadHideFromDebugger
Drops startup file
Modifies Windows Firewall
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e53840d4-2ce3-4f94-90ea-5607e8a63b44
Unpacked files
SH256 hash:
83a4a3957a752185873961a6c761e7b8f2883379978dc2940c03278d1341e086
MD5 hash:
352b4546e4c6de03f7351b6200eebeff
SHA1 hash:
9dd426f1aa71167d0ecbb5d96e45d7881a63bfb0
Link:
https://www.unpac.me/results/e6a68d22-a4f8-4142-a47c-d1e73c33ddb6/
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/83a4a3957a752185873961a6c761e7b8f2883379978dc2940c03278d1341e086

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:SUSP_XORed_URL_in_EXE
Create hunting rule
Author:Florian Roth
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

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/334843/

Comments