Malware Analysis Report

2025-03-15 06:27

Sample ID 240124-jvk2ysddgl
Target 71b223e7dafa75f0e5e5593f71f6b39d
SHA256 a356dbe02a59506abef8670c45cba7dffdb6b542233293b8535b6c0f8a11ca3e
Tags
njrat hacked evasion persistence trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

a356dbe02a59506abef8670c45cba7dffdb6b542233293b8535b6c0f8a11ca3e

Threat Level: Known bad

The file 71b223e7dafa75f0e5e5593f71f6b39d was found to be: Known bad.

Malicious Activity Summary

njrat hacked evasion persistence trojan

njRAT/Bladabindi

Modifies Windows Firewall

Loads dropped DLL

Drops startup file

Executes dropped EXE

Checks computer location settings

Adds Run key to start application

Enumerates physical storage devices

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-24 07:59

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-24 07:59

Reported

2024-01-24 08:02

Platform

win7-20231215-en

Max time kernel

149s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\71b223e7dafa75f0e5e5593f71f6b39d.exe"

Signatures

njRAT/Bladabindi

trojan njrat

Modifies Windows Firewall

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7fe71c54e55ab72e1ef00fa365adaa17.exe C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7fe71c54e55ab72e1ef00fa365adaa17.exe C:\Users\Admin\AppData\Local\Temp\DM.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\71b223e7dafa75f0e5e5593f71f6b39d.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000\Software\Microsoft\Windows\CurrentVersion\Run\7fe71c54e55ab72e1ef00fa365adaa17 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\DM.exe\" .." C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\7fe71c54e55ab72e1ef00fa365adaa17 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\DM.exe\" .." C:\Users\Admin\AppData\Local\Temp\DM.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\71b223e7dafa75f0e5e5593f71f6b39d.exe

"C:\Users\Admin\AppData\Local\Temp\71b223e7dafa75f0e5e5593f71f6b39d.exe"

C:\Users\Admin\AppData\Local\Temp\DM.exe

"C:\Users\Admin\AppData\Local\Temp\DM.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\DM.exe" "DM.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 danialbrain.ddns.net udp

Files

memory/2480-0-0x0000000001160000-0x000000000116E000-memory.dmp

memory/2480-1-0x0000000074BE0000-0x00000000752CE000-memory.dmp

memory/2480-2-0x0000000004D40000-0x0000000004D80000-memory.dmp

memory/2480-3-0x00000000002F0000-0x00000000002FE000-memory.dmp

\Users\Admin\AppData\Local\Temp\DM.exe

MD5 71b223e7dafa75f0e5e5593f71f6b39d
SHA1 157398eddab918b549433b718621f8c3fcce360f
SHA256 a356dbe02a59506abef8670c45cba7dffdb6b542233293b8535b6c0f8a11ca3e
SHA512 4335479ea63daf0005199a4844eac2994d7acf995ecefea87315511002617bfd63c875b3e251cf1644b28dc2a8fadb5bcf74b184b358f3231ca4780fe5110195

memory/2324-13-0x0000000074BE0000-0x00000000752CE000-memory.dmp

memory/2480-12-0x0000000074BE0000-0x00000000752CE000-memory.dmp

memory/2324-14-0x0000000000220000-0x000000000022E000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\e653d73e45833b6c

MD5 ce4a5abfe910ba4e4e12233c79cd6cdc
SHA1 8d640e31ecab76f46a53c0da7fa0e7e88b0ff6ef
SHA256 b576fa80f20b5e97b911d44e16722a2c7ec5294337b36350f9232f977f55763b
SHA512 52065c2a7653f845f6b27361531e9f8e2f2f3f8675af4e43b0b4275d1f5b41ca8cb471bb4f783f8d73dccec350015fc1ee05efb0d450b9ebe52af69c78c3223e

memory/2324-16-0x0000000002130000-0x0000000002170000-memory.dmp

memory/2324-18-0x0000000074BE0000-0x00000000752CE000-memory.dmp

memory/2324-19-0x0000000002130000-0x0000000002170000-memory.dmp

memory/2324-20-0x0000000002130000-0x0000000002170000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-24 07:59

Reported

2024-01-24 08:02

Platform

win10v2004-20231215-en

Max time kernel

151s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\71b223e7dafa75f0e5e5593f71f6b39d.exe"

Signatures

njRAT/Bladabindi

trojan njrat

Modifies Windows Firewall

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\71b223e7dafa75f0e5e5593f71f6b39d.exe N/A

Drops startup file

Description Indicator Process Target
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7fe71c54e55ab72e1ef00fa365adaa17.exe C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7fe71c54e55ab72e1ef00fa365adaa17.exe C:\Users\Admin\AppData\Local\Temp\DM.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7fe71c54e55ab72e1ef00fa365adaa17 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\DM.exe\" .." C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\7fe71c54e55ab72e1ef00fa365adaa17 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\DM.exe\" .." C:\Users\Admin\AppData\Local\Temp\DM.exe N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\DM.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\71b223e7dafa75f0e5e5593f71f6b39d.exe

"C:\Users\Admin\AppData\Local\Temp\71b223e7dafa75f0e5e5593f71f6b39d.exe"

C:\Users\Admin\AppData\Local\Temp\DM.exe

"C:\Users\Admin\AppData\Local\Temp\DM.exe"

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\DM.exe" "DM.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 danialbrain.ddns.net udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 danialbrain.ddns.net udp
US 8.8.8.8:53 danialbrain.ddns.net udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 138.91.171.81:80 tcp
US 8.8.8.8:53 danialbrain.ddns.net udp
US 8.8.8.8:53 danialbrain.ddns.net udp
US 8.8.8.8:53 danialbrain.ddns.net udp
US 8.8.8.8:53 danialbrain.ddns.net udp
US 8.8.8.8:53 danialbrain.ddns.net udp
US 8.8.8.8:53 danialbrain.ddns.net udp
US 8.8.8.8:53 danialbrain.ddns.net udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 danialbrain.ddns.net udp
US 8.8.8.8:53 danialbrain.ddns.net udp
US 8.8.8.8:53 danialbrain.ddns.net udp
US 8.8.8.8:53 danialbrain.ddns.net udp
US 8.8.8.8:53 danialbrain.ddns.net udp
US 8.8.8.8:53 danialbrain.ddns.net udp
US 8.8.8.8:53 danialbrain.ddns.net udp
US 8.8.8.8:53 danialbrain.ddns.net udp
US 8.8.8.8:53 13.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 danialbrain.ddns.net udp

Files

memory/4264-0-0x0000000074550000-0x0000000074D00000-memory.dmp

memory/4264-1-0x0000000000920000-0x000000000092E000-memory.dmp

memory/4264-2-0x0000000005340000-0x00000000053DC000-memory.dmp

memory/4264-4-0x0000000005330000-0x0000000005340000-memory.dmp

memory/4264-5-0x0000000002CD0000-0x0000000002CDE000-memory.dmp

memory/4264-6-0x0000000005A90000-0x0000000006034000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\DM.exe

MD5 71b223e7dafa75f0e5e5593f71f6b39d
SHA1 157398eddab918b549433b718621f8c3fcce360f
SHA256 a356dbe02a59506abef8670c45cba7dffdb6b542233293b8535b6c0f8a11ca3e
SHA512 4335479ea63daf0005199a4844eac2994d7acf995ecefea87315511002617bfd63c875b3e251cf1644b28dc2a8fadb5bcf74b184b358f3231ca4780fe5110195

C:\Users\Admin\AppData\Local\Temp\e653d73e45833b6c

MD5 34235674f3b9bb162b19fd4a647c4946
SHA1 0a804526a0beaf4db93f408f46194e27de70cd8f
SHA256 9faac190454b7695efa84875a77da35ccf700f145970e4278699ede1bd205e2e
SHA512 cceb9699f12cacd99b691f77667c9e3fabccbbc0c1ca4ceb34220178d7871faf5abb707980f5550b04eae549b9f60f2ab3581c8ad5dd768503f9f2ab1ef1d7f4

memory/4416-20-0x0000000074550000-0x0000000074D00000-memory.dmp

memory/4416-21-0x0000000004A10000-0x0000000004A20000-memory.dmp

memory/4264-22-0x0000000074550000-0x0000000074D00000-memory.dmp

memory/4416-24-0x0000000004C80000-0x0000000004D12000-memory.dmp

memory/4416-25-0x0000000004C50000-0x0000000004C5A000-memory.dmp

memory/4416-26-0x0000000074550000-0x0000000074D00000-memory.dmp

memory/4416-27-0x0000000004A10000-0x0000000004A20000-memory.dmp

memory/4416-28-0x0000000004A10000-0x0000000004A20000-memory.dmp

memory/4416-29-0x0000000004A10000-0x0000000004A20000-memory.dmp