MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1f7971e9d98d51e7a89cb3cc698ef9f4e0be8a31790c509f75993c1e61c159d9. 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 1 YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1f7971e9d98d51e7a89cb3cc698ef9f4e0be8a31790c509f75993c1e61c159d9
SHA3-384 hash: 574aab3e39098f99a6c3522914bdff03d549b8c0eb063f925658d829a7ea335bd6c644c1595809be4fe48d23b0c38560
SHA1 hash: 5a716099195dd8f9d8a87f343be936c6d684b492
MD5 hash: a4f62c45af96eb8cd4ef13910fecc554
humanhash: burger-october-hotel-video
File name:a4f62c45af96eb8cd4ef13910fecc554.exe
Download: download sample
Signature njrat
Create hunting rule
File size:36'864 bytes
First seen:2021-12-24 00:41:25 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 384:Mi1TgiG1CJZfursvO6yszEtM/rqTPcPMrAF+rMRTyN/0L+EcoinblneHQM3epzXr:F1V5WpszEtMGbckrM+rMRa8NujTt
Threatray 1'094 similar samples on MalwareBazaar
TLSH T1AFF2294D7BE08168D9FD167B05B2D4130776E04B5E23DD0D8EF6A8AA37236C18B54AE2
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
141.255.145.160:5553

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
141.255.145.160:5553 https://threatfox.abuse.ch/ioc/283921/

Intelligence

File Origin
# of uploads :
1
# of downloads :
267
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a4f62c45af96eb8cd4ef13910fecc554.exe
Verdict:
Malicious activity
Analysis date:
2021-12-24 00:44:59 UTC
Tags:
rat njrat bladabindi trojan
Link:
https://app.any.run/tasks/f24aa545-3b7a-4570-944e-581d3aacedfc

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/216056/
Detection(s):
Win.Dropper.njRAT-7436651-0
Create hunting rule

Win.Packed.Generic-7672854-0
Create hunting rule

Win.Packed.Generic-7672855-0
Create hunting rule

Win.Packed.njRAT-7672853-1
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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Enabling the 'hidden' option for analyzed file
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
Enabling the 'hidden' option for recently created files
Creating a window
Searching for synchronization primitives
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Launching the process to change the firewall settings
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Creating a file in the mass storage device
Enabling autorun by creating a file
Enabling threat expansion on mass storage devices
Verdict:
Malicious
Threat level:
  10/10
Confidence:
80%
Tags:
bladabindi fingerprint greyware keylogger njrat obfuscated packed rat stealer
Link:
https://www.filescan.io/uploads/61c5175e8991ba72b3948742/reports/e3da6e22-3d9e-4ba6-b655-90c1146780cf/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/ed0bb711-8814-41ab-b2c4-c06ad072be01
Result
Threat name:
njRat
Create hunting rule
Detection:
malicious
Classification:
spre.troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/912256
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Changes security center settings (notifications, updates, antivirus, firewall)
Contains functionality to log keystrokes (.Net Source)
Creates autorun.inf (USB autostart)
Creates autostart registry keys with suspicious names
Detected njRat
Drops PE files to the startup folder
Drops PE files with benign system names
Found malware configuration
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 dropped file
Multi AV Scanner detection for submitted file
Protects its processes via BreakOnTermination flag
Sigma detected: Drops fake system file at system root drive
Sigma detected: Suspicious Svchost Process
Sigma detected: System File Execution Location Anomaly
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Uses dynamic DNS services
Uses netsh to modify the Windows network and firewall settings
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 544730 Sample: W4vEIKh3vZ.exe Startdate: 24/12/2021 Architecture: WINDOWS Score: 100 50 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->50 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 16 other signatures 2->56 8 W4vEIKh3vZ.exe 1 6 2->8         started        12 svchost.exe 2->12         started        14 svchost.exe 2->14         started        17 11 other processes 2->17 process3 dnsIp4 40 C:\Users\user\AppData\Roaming\svchost.exe, PE32 8->40 dropped 42 C:\Users\user\...\svchost.exe:Zone.Identifier, ASCII 8->42 dropped 44 C:\Users\user\AppData\...\W4vEIKh3vZ.exe.log, ASCII 8->44 dropped 66 Drops PE files with benign system names 8->66 19 svchost.exe 2 11 8->19         started        68 Changes security center settings (notifications, updates, antivirus, firewall) 12->68 24 MpCmdRun.exe 1 12->24         started        48 192.168.2.1 unknown unknown 14->48 file5 signatures6 process7 dnsIp8 46 bisbotbako.ddns.net 141.255.145.160, 49744, 5553 IELOIELOMainNetworkFR France 19->46 32 C:\svchost.exe, PE32 19->32 dropped 34 C:\...\96a463b52a9ece171dc1adc4c650aa32.exe, PE32 19->34 dropped 36 C:\svchost.exe:Zone.Identifier, ASCII 19->36 dropped 38 2 other malicious files 19->38 dropped 58 Antivirus detection for dropped file 19->58 60 System process connects to network (likely due to code injection or exploit) 19->60 62 Multi AV Scanner detection for dropped file 19->62 64 8 other signatures 19->64 26 netsh.exe 1 3 19->26         started        28 conhost.exe 24->28         started        file9 signatures10 process11 process12 30 conhost.exe 26->30         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1f7971e9d98d51e7a89cb3cc698ef9f4e0be8a31790c509f75993c1e61c159d9/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2021-12-22 11:21:44 UTC
File Type:
PE (.Net Exe)
AV detection:
37 of 43 (86.05%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=d54xd2ozrvi6pke4wpggtdxz6tql5crrpegfbh3vte6b4yoblhmq._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
2483e3d38f1856bf14e1bd86692e4ac5b3f330a52166d7708fba883a6809595b
njrat
33a271b57993a4279618294783f95d3634d0358b5030ea48cf9896475e3d8546
njrat
62540ba573e873b816d3d956132804254a23207e6bfc9f7a371a68f5aa8090ce
njrat
76d739008009934a9aacb4e62c3fa45d01d8a38320857f073c9a4db4e6046640
njrat
8385eb7b18a881dcfdb87406a92c19b5b39676f5de60859a4a4034cf91e21c6d
njrat
9f7fd0ad05c3b8f6d3945a0753b7b20fc53528cfbf7c8b4a2ab7f49795937b44
njrat
ae275aba1d935bd3045e9cd3f258b72636e6759506e183423341a992faf47f80
njrat
fc55c796977aaab2254fd98cd04595c9eab86f459f3288f5f33d8fc9f050fdc4
njrat
+ 1'084 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:hacked evasion persistence suricata trojan
Link:
https://tria.ge/reports/211224-a2c59acgcl/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops autorun.inf file
Adds Run key to start application
Drops startup file
Loads dropped DLL
Executes dropped EXE
Modifies Windows Firewall
njRAT/Bladabindi
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
suricata: ET MALWARE njrat ver 0.7d Malware CnC Callback (Capture)
suricata: ET MALWARE njrat ver 0.7d Malware CnC Callback (Remote Desktop)
suricata: ET MALWARE njrat ver 0.7d Malware CnC Callback Response (Remote Desktop)
Malware Config
C2 Extraction:
bisbotbako.ddns.net:5553
Unpacked files
SH256 hash:
1f7971e9d98d51e7a89cb3cc698ef9f4e0be8a31790c509f75993c1e61c159d9
MD5 hash:
a4f62c45af96eb8cd4ef13910fecc554
SHA1 hash:
5a716099195dd8f9d8a87f343be936c6d684b492
Detections:
win_njrat_w1
Create hunting rule
win_njrat_g1
Create hunting rule
Link:
https://www.unpac.me/results/0d83be7a-053c-4663-b930-cbddf2c0592f/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
NJRat
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/1f7971e9d98d51e7a89cb3cc698ef9f4e0be8a31790c509f75993c1e61c159d9

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:MALWARE_Win_NjRAT
Create hunting rule
Author:ditekSHen
Description:Detects NjRAT / Bladabindi
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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.

Cape
Cape
https://www.capesandbox.com/analysis/216056/

Comments