Malware Analysis Report

2025-03-15 06:27

Sample ID 240119-gf9ewsgeg8
Target MOhui.exe
SHA256 ec5aafc513b950544018cfc4b2bebdf7f7edbb09783f76027f28fcf56c4b6433
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

ec5aafc513b950544018cfc4b2bebdf7f7edbb09783f76027f28fcf56c4b6433

Threat Level: Known bad

The file MOhui.exe was found to be: Known bad.

Malicious Activity Summary

njrat hacked evasion persistence trojan

njRAT/Bladabindi

Modifies Windows Firewall

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

Adds Run key to start application

Enumerates physical storage devices

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-19 05:45

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-19 05:45

Reported

2024-01-19 05:48

Platform

win7-20231215-en

Max time kernel

149s

Max time network

118s

Command Line

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

Signatures

njRAT/Bladabindi

trojan njrat

Modifies Windows Firewall

evasion
Description Indicator Process Target
N/A N/A C:\Windows\system32\netsh.exe N/A

Executes dropped EXE

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

Loads dropped DLL

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\162f71f7ffbaf34cff578886b8650868 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\uhyhher.exe\" .." C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Windows\CurrentVersion\Run\162f71f7ffbaf34cff578886b8650868 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\uhyhher.exe\" .." C:\Users\Admin\AppData\Local\Temp\uhyhher.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\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A

Processes

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

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

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

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

C:\Windows\system32\netsh.exe

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

Network

Country Destination Domain Proto
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp

Files

memory/3020-0-0x000007FEF57A0000-0x000007FEF613D000-memory.dmp

memory/3020-1-0x00000000021E0000-0x0000000002260000-memory.dmp

memory/3020-2-0x000007FEF57A0000-0x000007FEF613D000-memory.dmp

memory/3020-3-0x00000000021E0000-0x0000000002260000-memory.dmp

memory/3020-4-0x00000000021A0000-0x00000000021AC000-memory.dmp

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

MD5 5791a91914003e2092f958a30f477fee
SHA1 91610dd4e2ba51be830f1cc576c51f0c5b8e76ce
SHA256 ec5aafc513b950544018cfc4b2bebdf7f7edbb09783f76027f28fcf56c4b6433
SHA512 dccce72364adbad71685b0170ec253af45e8e13dcceb93a53316373cc7b37a77754f5909b785fd38883d91f4988230ae4ce35a3381bc43dcd6b372086bc6e797

memory/3020-11-0x000007FEF57A0000-0x000007FEF613D000-memory.dmp

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

MD5 7995b80a29d581788969af48cf3df386
SHA1 1b194fe6187c0c4aca74db15b4d10c563bf4db25
SHA256 ef024d70f7583e24700cc85f5236ad6021af1914fdc52a8590ceea4d1b1d8044
SHA512 d6fdf773292c2897d6572c19f55eaa141f00e575aeced6c14bdc4cbc8c2b6b2f9b23131687e96033e6b2f7345fe3129073d043f3a777f82d3595f49cc0647ead

memory/2376-12-0x000007FEF57A0000-0x000007FEF613D000-memory.dmp

memory/2376-14-0x00000000007D0000-0x0000000000850000-memory.dmp

memory/2376-15-0x000007FEF57A0000-0x000007FEF613D000-memory.dmp

memory/2376-16-0x00000000007D0000-0x0000000000850000-memory.dmp

memory/2376-17-0x00000000007D0000-0x0000000000850000-memory.dmp

memory/2376-18-0x000007FEF57A0000-0x000007FEF613D000-memory.dmp

memory/2376-19-0x00000000007D0000-0x0000000000850000-memory.dmp

memory/2376-20-0x00000000007D0000-0x0000000000850000-memory.dmp

memory/2376-21-0x00000000007D0000-0x0000000000850000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-19 05:45

Reported

2024-01-19 05:48

Platform

win10v2004-20231215-en

Max time kernel

150s

Max time network

152s

Command Line

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

Signatures

njRAT/Bladabindi

trojan njrat

Modifies Windows Firewall

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SYSTEM32\netsh.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\MOhui.exe N/A

Executes dropped EXE

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\162f71f7ffbaf34cff578886b8650868 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\uhyhher.exe\" .." C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\162f71f7ffbaf34cff578886b8650868 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\uhyhher.exe\" .." C:\Users\Admin\AppData\Local\Temp\uhyhher.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\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\uhyhher.exe N/A

Processes

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

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

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

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

C:\Windows\SYSTEM32\netsh.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
N/A 127.0.0.1:5552 tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
N/A 127.0.0.1:5552 tcp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp
US 8.8.8.8:53 12.173.189.20.in-addr.arpa udp
N/A 127.0.0.1:5552 tcp
N/A 127.0.0.1:5552 tcp

Files

memory/2736-0-0x00007FFCED040000-0x00007FFCED9E1000-memory.dmp

memory/2736-1-0x0000000001920000-0x0000000001930000-memory.dmp

memory/2736-3-0x00007FFCED040000-0x00007FFCED9E1000-memory.dmp

memory/2736-2-0x000000001D880000-0x000000001DD4E000-memory.dmp

memory/2736-4-0x000000001D1F0000-0x000000001D28C000-memory.dmp

memory/2736-5-0x000000001DD50000-0x000000001DDF6000-memory.dmp

memory/2736-6-0x0000000001A10000-0x0000000001A18000-memory.dmp

memory/2736-7-0x0000000001920000-0x0000000001930000-memory.dmp

memory/2736-8-0x0000000001920000-0x0000000001930000-memory.dmp

memory/2736-9-0x0000000001AD0000-0x0000000001ADC000-memory.dmp

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

MD5 5791a91914003e2092f958a30f477fee
SHA1 91610dd4e2ba51be830f1cc576c51f0c5b8e76ce
SHA256 ec5aafc513b950544018cfc4b2bebdf7f7edbb09783f76027f28fcf56c4b6433
SHA512 dccce72364adbad71685b0170ec253af45e8e13dcceb93a53316373cc7b37a77754f5909b785fd38883d91f4988230ae4ce35a3381bc43dcd6b372086bc6e797

memory/452-22-0x00007FFCED040000-0x00007FFCED9E1000-memory.dmp

memory/452-23-0x0000000001E40000-0x0000000001E50000-memory.dmp

memory/2736-24-0x00007FFCED040000-0x00007FFCED9E1000-memory.dmp

memory/452-25-0x00007FFCED040000-0x00007FFCED9E1000-memory.dmp

memory/452-26-0x0000000001E40000-0x0000000001E50000-memory.dmp

memory/452-27-0x0000000001E40000-0x0000000001E50000-memory.dmp

memory/452-28-0x00007FFCED040000-0x00007FFCED9E1000-memory.dmp

memory/452-29-0x0000000001E40000-0x0000000001E50000-memory.dmp

memory/452-30-0x0000000001E40000-0x0000000001E50000-memory.dmp

memory/452-31-0x0000000001E40000-0x0000000001E50000-memory.dmp

memory/452-32-0x0000000001E40000-0x0000000001E50000-memory.dmp