MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f39eb3c952eb90f63ffdac11c6721c4f434bb052957aa6178c2e0fe9529f2bf6. 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 15 File information Comments

SHA256 hash: f39eb3c952eb90f63ffdac11c6721c4f434bb052957aa6178c2e0fe9529f2bf6
SHA3-384 hash: 3a744731a494f0c5b30ece70dff1f27ad9c158758d9914e674a66769b973b8dd1644bc37c7040e2c13432184629c7898
SHA1 hash: 2b7d90db317dae07c3d982f26082b077696bbc52
MD5 hash: af642c391d6c8958da644decf3443fc4
humanhash: six-neptune-purple-glucose
File name:af642c391d6c8958da644decf3443fc4.exe
Download: download sample
Signature njrat
File size:95'232 bytes
First seen:2023-01-06 23:45:28 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 1536:0GmC+xhUa9urgOB9mNvM4jEwzGi1dD1DmgS:0GgUa9urgOidGi1dhL
Threatray 1'464 similar samples on MalwareBazaar
TLSH T15F93D74977E57524E4BF56F75472F2004E34B48B1602E39E49E218EA0A33AC44F89EEB
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
3.125.209.94:16251

Intelligence


File Origin
# of uploads :
1
# of downloads :
239
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
af642c391d6c8958da644decf3443fc4.exe
Verdict:
Malicious activity
Analysis date:
2023-01-06 23:46:03 UTC
Tags:
trojan rat njrat bladabindi

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Sending a custom TCP request
Creating a process with a hidden window
Creating a file in the Windows subdirectories
Enabling the 'hidden' option for files in the %temp% directory
Creating a file in the Program Files subdirectories
Launching the process to change network settings
Searching for synchronization primitives
DNS request
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Launching the process to change the firewall settings
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm autorun bladabindi cmd.exe fingerprint fingerprint greyware njrat packed rat rundll32.exe stealer update.exe windows winnti
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.
Result
Threat name:
Detection:
malicious
Classification:
spre.troj.adwa.evad
Score:
100 / 100
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)
Drops PE files to the document folder of the user
Drops PE files to the startup folder
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
Snort IDS alert for network traffic
Uses netsh to modify the Windows network and firewall settings
Yara detected Njrat
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 779522 Sample: UEy0j9yN2H.exe Startdate: 07/01/2023 Architecture: WINDOWS Score: 100 58 Snort IDS alert for network traffic 2->58 60 Multi AV Scanner detection for domain / URL 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 10 other signatures 2->64 8 UEy0j9yN2H.exe 7 2->8         started        11 Microsoft Corporation.exe 3 2->11         started        13 Explower.exe 3 2->13         started        process3 file4 40 C:\Users\user\AppData\Local\Temp\server.exe, PE32 8->40 dropped 42 C:\Users\user\AppData\...\UEy0j9yN2H.exe.log, ASCII 8->42 dropped 15 server.exe 1 13 8->15         started        process5 dnsIp6 44 0.tcp.eu.ngrok.io 3.124.142.205, 16251, 49697 AMAZON-02US United States 15->44 46 3.125.209.94, 16251, 49698 AMAZON-02US United States 15->46 48 192.168.2.1 unknown unknown 15->48 32 C:\Windows\SysWOW64xplower.exe, PE32 15->32 dropped 34 C:\Users\user\Documentsxplower.exe, PE32 15->34 dropped 36 C:\Users\user\Desktopxplower.exe, PE32 15->36 dropped 38 6 other malicious files 15->38 dropped 50 Antivirus detection for dropped file 15->50 52 Multi AV Scanner detection for dropped file 15->52 54 Drops PE files to the document folder of the user 15->54 56 4 other signatures 15->56 20 netsh.exe 3 15->20         started        22 netsh.exe 3 15->22         started        24 netsh.exe 3 15->24         started        file7 signatures8 process9 process10 26 conhost.exe 20->26         started        28 conhost.exe 22->28         started        30 conhost.exe 24->30         started       
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Status:
Malicious
First seen:
2023-01-04 03:58:19 UTC
File Type:
PE (.Net Exe)
AV detection:
35 of 41 (85.37%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:njrat botnet:hacked evasion trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in System32 directory
Checks computer location settings
Drops startup file
Loads dropped DLL
Executes dropped EXE
Modifies Windows Firewall
njRAT/Bladabindi
Malware Config
C2 Extraction:
FRANSESCOC50Y3AuZXUubmdyb2suaW8Strik:MTYyNTE=
Unpacked files
SH256 hash:
f39eb3c952eb90f63ffdac11c6721c4f434bb052957aa6178c2e0fe9529f2bf6
MD5 hash:
af642c391d6c8958da644decf3443fc4
SHA1 hash:
2b7d90db317dae07c3d982f26082b077696bbc52
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:AsyncRat_Detection_Dec_2022
Author:Potatech
Description:AsyncRat
Rule name:CN_disclosed_20180208_c
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://twitter.com/cyberintproject/status/961714165550342146
Rule name:CN_disclosed_20180208_c_RID2E71
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://twitter.com/cyberintproject/status/961714165550342146
Rule name:Disable_Defender
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:malware_Njrat_strings
Author:JPCERT/CC Incident Response Group
Description:detect njRAT in memory
Rule name:MALWARE_Win_NjRAT
Author:ditekSHen
Description:Detects NjRAT / Bladabindi
Rule name:MAL_njrat
Author:SECUINFRA Falcon Team
Rule name:MAL_Winnti_Sample_May18_1
Author:Florian Roth
Description:Detects malware sample from Burning Umbrella report - Generic Winnti Rule
Reference:https://401trg.pw/burning-umbrella/
Rule name:MAL_Winnti_Sample_May18_1_RID3003
Author:Florian Roth
Description:Detects malware sample from Burning Umbrella report - Generic Winnti Rule
Reference:https://401trg.pw/burning-umbrella/
Rule name:pe_imphash
Rule name:Skystars_LightDefender_Njrat_Rule
Author:Skystars LightDefender
Description:Detects Njrat
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_netsh_firewall_command
Author:SECUINFRA Falcon Team
Rule name:Windows_Trojan_Njrat_30f3c220
Author:Elastic Security
Rule name:Windows_Trojan_Njrat_30f3c220

File information


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

Comments