MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a5a17977f49636417c0373bfa9577348ac55f4267af0aacf90344df6021adba7. 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: 10


Intelligence 10 IOCs 1 YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a5a17977f49636417c0373bfa9577348ac55f4267af0aacf90344df6021adba7
SHA3-384 hash: dfe04622d8594bd24f3a16adb37882d6d3c73b341ec8682526e1385ff6b996888ee8390224838166a5551263c92215bf
SHA1 hash: 949972709b395d05b6ec4592a95e400c324a8614
MD5 hash: b24120194258ff4f33b4fd20372f9b32
humanhash: carbon-lamp-shade-lithium
File name:b24120194258ff4f33b4fd20372f9b32.exe
Download: download sample
Signature njrat
Create hunting rule
File size:5'120 bytes
First seen:2022-02-11 04:16:13 UTC
Last seen:2022-02-11 05:53:02 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 48:6WaUmA2Yja1m+eY72LtunvahxAUuNWMMwDmwHWHCHnHClFAcjDhhm+9CtDjl7a0+:ETbbXALEihxrA5DmBh6IDgzNt
TLSH T1B9B192206BC84737E977CB79EDB383016638F216DE538F5E20C5120A9E2B7510D63E68
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
3.22.15.135:14466

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
3.22.15.135:14466 https://threatfox.abuse.ch/ioc/387024/

Intelligence

File Origin
# of uploads :
2
# of downloads :
322
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b24120194258ff4f33b4fd20372f9b32.exe
Verdict:
Malicious activity
Analysis date:
2022-02-11 05:21:15 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/612a5b46-5e93-4296-a3ce-c39fefab10b8

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/240795/
Detection(s):
SecuriteInfo.com.Trojan.Siggen16.41593.12154.29713.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
DNS request
Searching for synchronization primitives
Sending a custom TCP request
Creating a file
Creating a process from a recently created file
Launching a service
Enabling the 'hidden' option for recently created files
Creating a process with a hidden window
Creating a window
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Launching the process to change the firewall settings
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
bladabindi cmd.exe control.exe evasive explorer.exe fingerprint greyware netsh.exe obfuscated packed replace.exe stealer update.exe
Link:
https://www.filescan.io/uploads/6205e33f289e2f3e4fc044b6/reports/398e47f3-6df4-4e40-aa22-fde36c551861/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:
Malicious
Link:
https://analyze.intezer.com/analyses/538985a9-3161-4ace-99ff-c1d0af417fd0
Result
Threat name:
njRat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/938092
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
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
Creates autostart registry keys with suspicious names
Detected njRat
Drops PE files to the startup folder
Found malware configuration
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 (e.g. based on Emerging Threat rules)
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: 570570 Sample: S8X1O6Arsl.exe Startdate: 11/02/2022 Architecture: WINDOWS Score: 100 45 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 12 other signatures 2->51 8 S8X1O6Arsl.exe 14 9 2->8         started        12 9dbb93d14e7d880f.exe 3 2->12         started        14 9dbb93d14e7d880f.exe 2 2->14         started        16 9dbb93d14e7d880f.exe 2 2->16         started        process3 dnsIp4 43 cdn.discordapp.com 162.159.130.233, 443, 49735, 49738 CLOUDFLARENETUS United States 8->43 35 C:\Users\user\Desktop\9dbb93d14e7d880f.exe, PE32 8->35 dropped 37 C:\Users\user\AppData\...\S8X1O6Arsl.exe.log, ASCII 8->37 dropped 39 C:\Users\user\Desktop\cbf90eac7539afc9.exe, PE32+ 8->39 dropped 18 9dbb93d14e7d880f.exe 3 5 8->18         started        23 cbf90eac7539afc9.exe 1 8->23         started        25 conhost.exe 8->25         started        file5 process6 dnsIp7 41 4.tcp.ngrok.io 3.129.187.220, 14466, 49751 AMAZON-02US United States 18->41 33 C:\...\482887cdfb93fbc01176d9593d0ebb63.exe, PE32 18->33 dropped 53 Antivirus detection for dropped file 18->53 55 Multi AV Scanner detection for dropped file 18->55 57 Machine Learning detection for dropped file 18->57 59 4 other signatures 18->59 27 netsh.exe 1 3 18->27         started        29 conhost.exe 23->29         started        file8 signatures9 process10 process11 31 conhost.exe 27->31         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a5a17977f49636417c0373bfa9577348ac55f4267af0aacf90344df6021adba7/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2022-02-09 23:53:01 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
18 of 28 (64.29%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uwqxs57usy3ec7adoo72sv3tjcwfl5bgplykvt4qgrg7maq23otq._file
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:hacked evasion persistence trojan
Link:
https://tria.ge/reports/220211-ewdbaaagc5/
Behaviour
Checks processor information in registry
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Adds Run key to start application
Drops startup file
Loads dropped DLL
Downloads MZ/PE file
Executes dropped EXE
Modifies Windows Firewall
njRAT/Bladabindi
Malware Config
C2 Extraction:
4.tcp.ngrok.io:14466
Unpacked files
SH256 hash:
a5a17977f49636417c0373bfa9577348ac55f4267af0aacf90344df6021adba7
MD5 hash:
b24120194258ff4f33b4fd20372f9b32
SHA1 hash:
949972709b395d05b6ec4592a95e400c324a8614
Link:
https://www.unpac.me/results/e5f44ba6-7024-4694-8558-c588f69eb150/
Please note that we are no longer able to provide a coverage score for Virus Total.

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:downloader_macros
Create hunting rule
Author:ddvvmmzz
Description:downloader macros
Rule name:exec_macros
Create hunting rule
Author:ddvvmmzz
Description:exec macros
Rule name:INDICATOR_SUSPICIOUS_EXE_DiscordURL
Create hunting rule
Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_PE_Discord_Attachment_Oct21_1
Create hunting rule
Author:Florian Roth
Description:Detects suspicious executable with reference to a Discord attachment (often used for malware hosting on a legitimate FQDN)
Reference:Internal Research

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/240795/

Comments