Malware Analysis Report

2024-08-06 19:42

Sample ID 240617-yeqd3awalp
Target f9a8439b27e33b82578b1bac2e1abef4e8bf15cbef1bb935b242bbdda0535478.exe
SHA256 f9a8439b27e33b82578b1bac2e1abef4e8bf15cbef1bb935b242bbdda0535478
Tags
njrat neuf evasion persistence trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

f9a8439b27e33b82578b1bac2e1abef4e8bf15cbef1bb935b242bbdda0535478

Threat Level: Known bad

The file f9a8439b27e33b82578b1bac2e1abef4e8bf15cbef1bb935b242bbdda0535478.exe was found to be: Known bad.

Malicious Activity Summary

njrat neuf evasion persistence trojan

njRAT/Bladabindi

Modifies Windows Firewall

Loads dropped DLL

Checks computer location settings

Executes dropped EXE

Adds Run key to start application

Suspicious use of SetThreadContext

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-17 19:42

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-17 19:42

Reported

2024-06-17 19:44

Platform

win7-20240508-en

Max time kernel

146s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f9a8439b27e33b82578b1bac2e1abef4e8bf15cbef1bb935b242bbdda0535478.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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe" C:\Users\Admin\AppData\Local\Temp\f9a8439b27e33b82578b1bac2e1abef4e8bf15cbef1bb935b242bbdda0535478.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f9a8439b27e33b82578b1bac2e1abef4e8bf15cbef1bb935b242bbdda0535478.exe" C:\Users\Admin\AppData\Local\Temp\f9a8439b27e33b82578b1bac2e1abef4e8bf15cbef1bb935b242bbdda0535478.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 112 set thread context of 560 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2400 wrote to memory of 112 N/A C:\Users\Admin\AppData\Local\Temp\f9a8439b27e33b82578b1bac2e1abef4e8bf15cbef1bb935b242bbdda0535478.exe C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
PID 2400 wrote to memory of 112 N/A C:\Users\Admin\AppData\Local\Temp\f9a8439b27e33b82578b1bac2e1abef4e8bf15cbef1bb935b242bbdda0535478.exe C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
PID 2400 wrote to memory of 112 N/A C:\Users\Admin\AppData\Local\Temp\f9a8439b27e33b82578b1bac2e1abef4e8bf15cbef1bb935b242bbdda0535478.exe C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
PID 2400 wrote to memory of 112 N/A C:\Users\Admin\AppData\Local\Temp\f9a8439b27e33b82578b1bac2e1abef4e8bf15cbef1bb935b242bbdda0535478.exe C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
PID 112 wrote to memory of 560 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
PID 112 wrote to memory of 560 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
PID 112 wrote to memory of 560 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
PID 112 wrote to memory of 560 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
PID 112 wrote to memory of 560 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
PID 112 wrote to memory of 560 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
PID 112 wrote to memory of 560 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
PID 112 wrote to memory of 560 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
PID 112 wrote to memory of 560 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
PID 560 wrote to memory of 2124 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe C:\Windows\SysWOW64\netsh.exe
PID 560 wrote to memory of 2124 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe C:\Windows\SysWOW64\netsh.exe
PID 560 wrote to memory of 2124 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe C:\Windows\SysWOW64\netsh.exe
PID 560 wrote to memory of 2124 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe C:\Windows\SysWOW64\netsh.exe

Processes

C:\Users\Admin\AppData\Local\Temp\f9a8439b27e33b82578b1bac2e1abef4e8bf15cbef1bb935b242bbdda0535478.exe

"C:\Users\Admin\AppData\Local\Temp\f9a8439b27e33b82578b1bac2e1abef4e8bf15cbef1bb935b242bbdda0535478.exe"

C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe

"C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe"

C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe

C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe" "chargeable.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.microsoft.com udp
US 8.8.8.8:53 www.microsoft.com udp
US 8.8.8.8:53 www.microsoft.com udp
US 8.8.8.8:53 www.microsoft.com udp
US 8.8.8.8:53 www.microsoft.com udp
US 8.8.8.8:53 doddyfire.linkpc.net udp
US 8.8.8.8:53 doddyfire.linkpc.net udp
US 8.8.8.8:53 doddyfire.linkpc.net udp

Files

memory/2400-0-0x0000000074DA1000-0x0000000074DA2000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Cab2751.tmp

MD5 29f65ba8e88c063813cc50a4ea544e93
SHA1 05a7040d5c127e68c25d81cc51271ffb8bef3568
SHA256 1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184
SHA512 e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

memory/2400-8-0x0000000074DA0000-0x000000007534B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Tar2763.tmp

MD5 435a9ac180383f9fa094131b173a2f7b
SHA1 76944ea657a9db94f9a4bef38f88c46ed4166983
SHA256 67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34
SHA512 1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

MD5 ff865172e2f736673e5939b05c4f04e5
SHA1 a9a215094341880905eb920e676501eae45798df
SHA256 dcc14f33761e64a42d59c21c521bd2c81e277a644285cd2850064c9307a447f3
SHA512 44474376f9c764efe30ad7d117fa09647ae50f2651558f9708026f07730eb2c6e99377a4f9d959f2c52255edfb81672824d05d304b2b59203b873048deede9da

C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe

MD5 4d60699c9c9c23f8e989c0a76200c270
SHA1 03d72e17b51b4b80e804b6bef1527b1bcdabf850
SHA256 c765dab62637582a5872be9e232644b4fa1fbfb77236699a839be168a3d0e815
SHA512 1a01f9e5d4bfc5dfc4559419ed82fea175df006931fb4a03694505410ecc7db3252cc40beeba1c5464c97bde261304fe23c83f34b9dc76289e1b41219c55cec3

memory/2400-117-0x0000000074DA0000-0x000000007534B000-memory.dmp

memory/560-189-0x0000000000400000-0x000000000040C000-memory.dmp

memory/560-191-0x0000000000400000-0x000000000040C000-memory.dmp

memory/560-192-0x0000000000400000-0x000000000040C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-17 19:42

Reported

2024-06-17 19:44

Platform

win10v2004-20240508-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f9a8439b27e33b82578b1bac2e1abef4e8bf15cbef1bb935b242bbdda0535478.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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\f9a8439b27e33b82578b1bac2e1abef4e8bf15cbef1bb935b242bbdda0535478.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f9a8439b27e33b82578b1bac2e1abef4e8bf15cbef1bb935b242bbdda0535478.exe" C:\Users\Admin\AppData\Local\Temp\f9a8439b27e33b82578b1bac2e1abef4e8bf15cbef1bb935b242bbdda0535478.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe" C:\Users\Admin\AppData\Local\Temp\f9a8439b27e33b82578b1bac2e1abef4e8bf15cbef1bb935b242bbdda0535478.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2680 set thread context of 1236 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: 33 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3380 wrote to memory of 2680 N/A C:\Users\Admin\AppData\Local\Temp\f9a8439b27e33b82578b1bac2e1abef4e8bf15cbef1bb935b242bbdda0535478.exe C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
PID 3380 wrote to memory of 2680 N/A C:\Users\Admin\AppData\Local\Temp\f9a8439b27e33b82578b1bac2e1abef4e8bf15cbef1bb935b242bbdda0535478.exe C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
PID 3380 wrote to memory of 2680 N/A C:\Users\Admin\AppData\Local\Temp\f9a8439b27e33b82578b1bac2e1abef4e8bf15cbef1bb935b242bbdda0535478.exe C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
PID 2680 wrote to memory of 1236 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
PID 2680 wrote to memory of 1236 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
PID 2680 wrote to memory of 1236 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
PID 2680 wrote to memory of 1236 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
PID 2680 wrote to memory of 1236 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
PID 2680 wrote to memory of 1236 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
PID 2680 wrote to memory of 1236 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
PID 2680 wrote to memory of 1236 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
PID 1236 wrote to memory of 3764 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe C:\Windows\SysWOW64\netsh.exe
PID 1236 wrote to memory of 3764 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe C:\Windows\SysWOW64\netsh.exe
PID 1236 wrote to memory of 3764 N/A C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe C:\Windows\SysWOW64\netsh.exe

Processes

C:\Users\Admin\AppData\Local\Temp\f9a8439b27e33b82578b1bac2e1abef4e8bf15cbef1bb935b242bbdda0535478.exe

"C:\Users\Admin\AppData\Local\Temp\f9a8439b27e33b82578b1bac2e1abef4e8bf15cbef1bb935b242bbdda0535478.exe"

C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe

"C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe"

C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe

C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe

C:\Windows\SysWOW64\netsh.exe

netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe" "chargeable.exe" ENABLE

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 doddyfire.linkpc.net udp
US 8.8.8.8:53 doddyfire.linkpc.net udp
US 8.8.8.8:53 doddyfire.linkpc.net udp
US 8.8.8.8:53 doddyfire.linkpc.net udp
US 8.8.8.8:53 doddyfire.linkpc.net udp
US 8.8.8.8:53 doddyfire.linkpc.net udp
US 8.8.8.8:53 doddyfire.linkpc.net udp
US 8.8.8.8:53 doddyfire.linkpc.net udp
US 8.8.8.8:53 doddyfire.linkpc.net udp
US 8.8.8.8:53 doddyfire.linkpc.net udp

Files

memory/3380-0-0x00000000751B2000-0x00000000751B3000-memory.dmp

memory/3380-1-0x00000000751B0000-0x0000000075761000-memory.dmp

memory/3380-2-0x00000000751B0000-0x0000000075761000-memory.dmp

C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe

MD5 437d9e184889ca5a7161205a63ee3216
SHA1 9a65cd20f8c97368547ec72a12b2ca95ee4d7517
SHA256 fdc66db5e597ce722c11ddbd98322541b1be26b0c2929cfd97fac12ee472c216
SHA512 68fbfe985769e9caa41aa6b19aa48c9e2c40cd0bdf659665c162f4ecd885bf2e1906115570c2623efdc019a81638b315ebe752f3a08366c16d93723479105144

memory/3380-17-0x00000000751B0000-0x0000000075761000-memory.dmp

memory/2680-18-0x00000000751B0000-0x0000000075761000-memory.dmp

memory/2680-19-0x00000000751B0000-0x0000000075761000-memory.dmp

memory/1236-20-0x0000000000400000-0x000000000040C000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\chargeable.exe.log

MD5 0a9b4592cd49c3c21f6767c2dabda92f
SHA1 f534297527ae5ccc0ecb2221ddeb8e58daeb8b74
SHA256 c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd
SHA512 6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307

memory/1236-24-0x00000000751B0000-0x0000000075761000-memory.dmp

memory/1236-26-0x00000000751B0000-0x0000000075761000-memory.dmp

memory/2680-25-0x00000000751B0000-0x0000000075761000-memory.dmp

memory/1236-27-0x00000000751B0000-0x0000000075761000-memory.dmp