MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1f95063441e9d231e0e2b15365a8722c5136c2a6fe2716f3653c260093026354. 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: 8


Intelligence 8 IOCs YARA File information Comments

SHA256 hash: 1f95063441e9d231e0e2b15365a8722c5136c2a6fe2716f3653c260093026354
SHA3-384 hash: db517c146dcf3bc2e6d69db25007c571b0e443294eb901c4bc853e0e6edc280ea56139b550096228042df39fe3a53069
SHA1 hash: ad4584c1b7734854939c59674cbbf22a99618285
MD5 hash: 1d59589778c525aadcb645270cee737c
humanhash: whiskey-kitten-enemy-tango
File name:SecuriteInfo.com.MSIL.Kryptik.AECS.24576.13236
Download: download sample
Signature njrat
File size:921'600 bytes
First seen:2022-01-28 23:02:57 UTC
Last seen:2022-01-28 23:39:30 UTC
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 24576:StZcpVJ78TNcjk8LKAj6h5E4Z9+SgzDOo7sv0yx3FXyoUc:Rpz78OI/i4nhgzDOo3yLC+
Threatray 3'016 similar samples on MalwareBazaar
TLSH T13F15012137DCC23AD2AA167685BA976227367D320B21D0CF7F8478AC5E707D2A935347
Reporter SecuriteInfoCom
Tags:msi NjRAT

Intelligence


File Origin
# of uploads :
2
# of downloads :
536
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
bladabindi cmd.exe expand.exe fingerprint packed packed shell32.dll
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:
troj.expl.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Contains functionality to hide user accounts
Creates an autostart registry key pointing to binary in C:\Windows
Creates autostart registry keys with suspicious names
Injects a PE file into a foreign processes
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
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses netsh to modify the Windows network and firewall settings
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Njrat
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 562521 Sample: SecuriteInfo.com.MSIL.Krypt... Startdate: 29/01/2022 Architecture: WINDOWS Score: 100 71 Malicious sample detected (through community Yara rule) 2->71 73 Multi AV Scanner detection for dropped file 2->73 75 Multi AV Scanner detection for submitted file 2->75 77 9 other signatures 2->77 10 msiexec.exe 82 30 2->10         started        13 RegSvcs.exe 4 2->13         started        15 RegSvcs.exe 3 2->15         started        17 3 other processes 2->17 process3 file4 59 C:\Windows\Installer\MSIBF62.tmp, PE32 10->59 dropped 61 C:\Windows\Installer\MSIAA7F.tmp, PE32 10->61 dropped 63 C:\Windows\Installer\MSI3B77.tmp, PE32 10->63 dropped 19 msiexec.exe 5 10->19         started        21 conhost.exe 13->21         started        23 conhost.exe 15->23         started        25 conhost.exe 17->25         started        process5 process6 27 server.exe 1 19->27         started        30 expand.exe 4 19->30         started        33 icacls.exe 1 19->33         started        35 2 other processes 19->35 file7 87 Writes to foreign memory regions 27->87 89 Allocates memory in foreign processes 27->89 91 Injects a PE file into a foreign processes 27->91 37 RegSvcs.exe 7 2 27->37         started        41 AddInProcess.exe 27->41         started        43 InstallUtil.exe 27->43         started        45 AddInProcess.exe 27->45         started        65 C:\Users\user\AppData\...\server.exe (copy), PE32 30->65 dropped 67 C:\...\cfa11b188d32074992aa4060114f8638.tmp, PE32 30->67 dropped 47 conhost.exe 30->47         started        49 conhost.exe 33->49         started        51 conhost.exe 35->51         started        53 conhost.exe 35->53         started        signatures8 process9 dnsIp10 69 njlove.duckdns.org 66.154.111.162, 1900, 49775 TOTAL-SERVER-SOLUTIONSUS Canada 37->69 79 Creates autostart registry keys with suspicious names 37->79 81 Creates an autostart registry key pointing to binary in C:\Windows 37->81 83 Uses netsh to modify the Windows network and firewall settings 37->83 85 Modifies the windows firewall 37->85 55 netsh.exe 2 3 37->55         started        signatures11 process12 process13 57 conhost.exe 55->57         started       
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Status:
Malicious
First seen:
2022-01-28 23:03:11 UTC
File Type:
Binary (Archive)
Extracted files:
28
AV detection:
11 of 27 (40.74%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Behaviour
Modifies data under HKEY_USERS
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Drops file in Windows directory
Enumerates connected drives
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Web download

njrat

Microsoft Software Installer (MSI) msi 1f95063441e9d231e0e2b15365a8722c5136c2a6fe2716f3653c260093026354

(this sample)

  
Delivery method
Distributed via web download

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