MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4099691b6923caf26f04c475c83d2eabbee3167061cb9d683c67cf36e63b31a9. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4099691b6923caf26f04c475c83d2eabbee3167061cb9d683c67cf36e63b31a9
SHA3-384 hash: 5e921e5c46032333533da9ba0ce34089c0c6307c008f65e97ee7a49fcb3e4e7e33658ea9dbe0bd325a705e4adf37c290
SHA1 hash: 63f197e4139dafa86daa135e910cebb5c515d196
MD5 hash: 2f79aaf512689c9403db74af2edb79ac
humanhash: tango-oxygen-indigo-uniform
File name:2f79aaf512689c9403db74af2edb79ac.exe
Download: download sample
Signature njrat
Create hunting rule
File size:496'171 bytes
First seen:2022-11-23 21:45:23 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash fcf1390e9ce472c7270447fc5c61a0c1 (871 x DCRat, 118 x NanoCore, 94 x njrat)
ssdeep 6144:x/iQb+ckQsH8TDRGKJkSvGUlYG2VT+tr08yZPzkLQsJVQc1VTNN2HMDgtHxyPw5:oQnk3GDYKGcblMT+tr08yZwL1p8Hx+w5
TLSH T173B4E103FAD1C8B2D43209315629AB55697D7D201F249F6FF3E83D6DEA341D0A225BA3
TrID 40.3% (.EXE) Win64 Executable (generic) (10523/12/4)
19.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
17.2% (.EXE) Win32 Executable (generic) (4505/5/1)
7.7% (.EXE) OS/2 Executable (generic) (2029/13)
7.6% (.EXE) Generic Win/DOS Executable (2002/3)
File icon (PE):PE icon
dhash icon 9494b494d4aeaeac (832 x DCRat, 172 x RedLineStealer, 134 x CryptOne)
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
3.141.177.1:15907

Intelligence

File Origin
# of uploads :
1
# of downloads :
368
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
njrat
Create hunting rule
ID:
1
File name:
2f79aaf512689c9403db74af2edb79ac.exe
Verdict:
Malicious activity
Analysis date:
2022-11-23 21:47:21 UTC
Tags:
trojan rat njrat bladabindi
Link:
https://app.any.run/tasks/f2a00448-7fc9-4645-8139-83127f3001cf

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/337841/
Detection(s):
SecuriteInfo.com.Gen.Variant.Johnnie.221809.751.14920.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for synchronization primitives
Creating a file in the %temp% subdirectories
Running batch commands
Creating a process from a recently created file
Creating a process with a hidden window
DNS request
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Creating a window
Searching for the window
Сreating synchronization primitives
Unauthorized injection to a recently created process
Launching the process to change the firewall settings
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
bladabindi greyware overlay packed setupapi.dll shdocvw.dll shell32.dll
Link:
https://www.filescan.io/uploads/637e949c5be128ac718e8e35/reports/90aa7960-4e40-4367-9c43-4a7bad714038/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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/0862be71-7d1c-4e14-88a1-654036f10e3b
Result
Threat name:
njRat
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1120164
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Contains functionality to log keystrokes (.Net Source)
Detected njRat
Machine Learning detection for dropped file
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
Snort IDS alert for network traffic
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: 752877 Sample: Bkrqd22MDm.exe Startdate: 23/11/2022 Architecture: WINDOWS Score: 100 34 6.tcp.ngrok.io 2->34 44 Snort IDS alert for network traffic 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Antivirus detection for URL or domain 2->48 50 8 other signatures 2->50 11 Bkrqd22MDm.exe 13 2->11         started        signatures3 process4 file5 32 C:\Users\user\AppData\...\Server.sfx.exe, PE32 11->32 dropped 14 cmd.exe 1 11->14         started        process6 process7 16 Server.sfx.exe 9 14->16         started        20 conhost.exe 14->20         started        file8 30 C:\Users\user\AppData\Local\...\Server.exe, PE32 16->30 dropped 42 Multi AV Scanner detection for dropped file 16->42 22 Server.exe 1 4 16->22         started        signatures9 process10 dnsIp11 36 3.132.159.158, 15907, 49707, 49709 AMAZON-02US United States 22->36 38 6.tcp.ngrok.io 3.140.223.7, 15907, 49702, 49703 AMAZON-02US United States 22->38 40 3 other IPs or domains 22->40 52 Antivirus detection for dropped file 22->52 54 Multi AV Scanner detection for dropped file 22->54 56 Machine Learning detection for dropped file 22->56 58 2 other signatures 22->58 26 netsh.exe 3 22->26         started        signatures12 process13 process14 28 conhost.exe 26->28         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4099691b6923caf26f04c475c83d2eabbee3167061cb9d683c67cf36e63b31a9/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2022-11-01 14:26:03 UTC
File Type:
PE (Exe)
Extracted files:
36
AV detection:
14 of 26 (53.85%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=icmwsg3jepfpe3yeyr24qpjovo7ogftqmhfz22b4m7htnzr3gguq._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:hacked evasion trojan
Link:
https://tria.ge/reports/221123-1ml3qaff65/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Modifies Windows Firewall
njRAT/Bladabindi
Malware Config
C2 Extraction:
6.tcp.ngrok.io:15907
Unpacked files
SH256 hash:
4099691b6923caf26f04c475c83d2eabbee3167061cb9d683c67cf36e63b31a9
MD5 hash:
2f79aaf512689c9403db74af2edb79ac
SHA1 hash:
63f197e4139dafa86daa135e910cebb5c515d196
Link:
https://www.unpac.me/results/bbf5366a-d896-43f4-a318-48d3049711a8/
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4099691b6923/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/4099691b6923caf26f04c475c83d2eabbee3167061cb9d683c67cf36e63b31a9

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:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
Rule name:sfx_pdb
Create hunting rule
Author:@razvialex
Description:Detect interesting files containing sfx with pdb paths.

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/337841/

Comments