Malware Analysis Report

2025-01-22 13:48

Sample ID 240831-sy76bs1elq
Target 9e35ed09d72c4f30704f9a595755846e.zip
SHA256 452c9de2993f7c26678c81bef5f0c305a2c8484ecf0ac9536ed265cfeb2c2390
Tags
njrat hacked discovery trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

452c9de2993f7c26678c81bef5f0c305a2c8484ecf0ac9536ed265cfeb2c2390

Threat Level: Known bad

The file 9e35ed09d72c4f30704f9a595755846e.zip was found to be: Known bad.

Malicious Activity Summary

njrat hacked discovery trojan

njRAT/Bladabindi

Checks computer location settings

Executes dropped EXE

Suspicious use of SetThreadContext

Unsigned PE

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-31 15:33

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-31 15:33

Reported

2024-08-31 15:36

Platform

win10v2004-20240802-en

Max time kernel

136s

Max time network

110s

Command Line

"C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe"

Signatures

njRAT/Bladabindi

trojan njrat

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe N/A

Executes dropped EXE

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

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\Explorer.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Explorer.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2324 wrote to memory of 4288 N/A C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe
PID 2324 wrote to memory of 4288 N/A C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe
PID 2324 wrote to memory of 4288 N/A C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe
PID 2324 wrote to memory of 4288 N/A C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe
PID 2324 wrote to memory of 4288 N/A C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe
PID 4288 wrote to memory of 4460 N/A C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe C:\Users\Admin\AppData\Local\Temp\Explorer.exe
PID 4288 wrote to memory of 4460 N/A C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe C:\Users\Admin\AppData\Local\Temp\Explorer.exe
PID 4288 wrote to memory of 4460 N/A C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe C:\Users\Admin\AppData\Local\Temp\Explorer.exe
PID 4460 wrote to memory of 2460 N/A C:\Users\Admin\AppData\Local\Temp\Explorer.exe C:\Users\Admin\AppData\Local\Temp\Explorer.exe
PID 4460 wrote to memory of 2460 N/A C:\Users\Admin\AppData\Local\Temp\Explorer.exe C:\Users\Admin\AppData\Local\Temp\Explorer.exe
PID 4460 wrote to memory of 2460 N/A C:\Users\Admin\AppData\Local\Temp\Explorer.exe C:\Users\Admin\AppData\Local\Temp\Explorer.exe

Processes

C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe

"C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe"

C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe

C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe

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

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

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
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
US 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp

Files

memory/2324-0-0x000000007490E000-0x000000007490F000-memory.dmp

memory/2324-1-0x0000000000C20000-0x0000000000C44000-memory.dmp

memory/2324-2-0x0000000002E70000-0x0000000002E82000-memory.dmp

memory/2324-4-0x0000000005DF0000-0x0000000006394000-memory.dmp

memory/2324-3-0x0000000074900000-0x00000000750B0000-memory.dmp

memory/2324-5-0x00000000058F0000-0x0000000005982000-memory.dmp

memory/2324-6-0x0000000005990000-0x000000000599A000-memory.dmp

memory/2324-7-0x0000000006FB0000-0x000000000704C000-memory.dmp

memory/2324-8-0x0000000005B80000-0x0000000005B8A000-memory.dmp

memory/4288-20-0x0000000000400000-0x000000000040C000-memory.dmp

memory/2324-22-0x0000000074900000-0x00000000750B0000-memory.dmp

memory/2324-23-0x0000000074900000-0x00000000750B0000-memory.dmp

memory/2324-24-0x0000000074900000-0x00000000750B0000-memory.dmp

memory/4288-25-0x0000000074900000-0x00000000750B0000-memory.dmp

memory/2324-27-0x0000000074900000-0x00000000750B0000-memory.dmp

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

MD5 9e35ed09d72c4f30704f9a595755846e
SHA1 ae793f91198f294e045d3ebae172a3e49153613d
SHA256 12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837
SHA512 a62d55cd6d124ead3136b938af63d5eaa97d9eccc2a184357523d29eb1e5405346192d5541d419a6fe6842d9ef721a11d3da981c46608ada382ddd02c09fd502

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe.log

MD5 400f1cc1a0a0ce1cdabda365ab3368ce
SHA1 1ecf683f14271d84f3b6063493dce00ff5f42075
SHA256 c8fa64f4b69df13ed6408fd4a204f318a36c2f38c85d4a4d42adfc9173f73765
SHA512 14c8cfd58d097e5e89c8cabe1e665173f1ccf604a9ef70cdcb84116e265f90819c19c891be408e0ad7e29086a5c2ea2883b7a7d1184878dbbac63e2cabcd1c45

memory/4288-40-0x0000000074900000-0x00000000750B0000-memory.dmp

memory/4460-41-0x0000000074900000-0x00000000750B0000-memory.dmp

memory/4460-42-0x0000000074900000-0x00000000750B0000-memory.dmp

memory/4460-48-0x0000000074900000-0x00000000750B0000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-31 15:33

Reported

2024-08-31 15:36

Platform

win7-20240704-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe"

Signatures

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe

"C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe"

C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe

C:\Users\Admin\AppData\Local\Temp\12b6c4aca8af6a0bf15e9278d47a66ef8c7f2772e4b5e863e6bb64289dd47837.exe

Network

N/A

Files

memory/1888-0-0x000000007484E000-0x000000007484F000-memory.dmp

memory/1888-1-0x0000000000B70000-0x0000000000B94000-memory.dmp

memory/1888-2-0x0000000000260000-0x0000000000272000-memory.dmp

memory/1888-3-0x0000000074840000-0x0000000074F2E000-memory.dmp

memory/1888-4-0x00000000004E0000-0x00000000004EA000-memory.dmp

memory/1888-9-0x0000000074840000-0x0000000074F2E000-memory.dmp

memory/1888-10-0x0000000074840000-0x0000000074F2E000-memory.dmp

memory/1888-11-0x0000000074840000-0x0000000074F2E000-memory.dmp

memory/1888-12-0x0000000074840000-0x0000000074F2E000-memory.dmp