Malware Analysis Report

2025-03-14 22:35

Sample ID 240406-2dn2dsde59
Target 7801024cad09ba88ea2a9f5d3d3207644f3c681745022e212dabbc801a5c54a6
SHA256 7801024cad09ba88ea2a9f5d3d3207644f3c681745022e212dabbc801a5c54a6
Tags
persistence
score
8/10

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
8/10

SHA256

7801024cad09ba88ea2a9f5d3d3207644f3c681745022e212dabbc801a5c54a6

Threat Level: Likely malicious

The file 7801024cad09ba88ea2a9f5d3d3207644f3c681745022e212dabbc801a5c54a6 was found to be: Likely malicious.

Malicious Activity Summary

persistence

Modifies AppInit DLL entries

Executes dropped EXE

Drops file in Program Files directory

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-06 22:28

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-06 22:28

Reported

2024-04-06 22:30

Platform

win7-20240221-en

Max time kernel

119s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7801024cad09ba88ea2a9f5d3d3207644f3c681745022e212dabbc801a5c54a6.exe"

Signatures

Modifies AppInit DLL entries

persistence

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\PROGRA~3\Mozilla\mgbxiii.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\PROGRA~3\Mozilla\mgbxiii.exe C:\Users\Admin\AppData\Local\Temp\7801024cad09ba88ea2a9f5d3d3207644f3c681745022e212dabbc801a5c54a6.exe N/A
File created C:\PROGRA~3\Mozilla\iudaoda.dll C:\PROGRA~3\Mozilla\mgbxiii.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2144 wrote to memory of 2584 N/A C:\Windows\system32\taskeng.exe C:\PROGRA~3\Mozilla\mgbxiii.exe
PID 2144 wrote to memory of 2584 N/A C:\Windows\system32\taskeng.exe C:\PROGRA~3\Mozilla\mgbxiii.exe
PID 2144 wrote to memory of 2584 N/A C:\Windows\system32\taskeng.exe C:\PROGRA~3\Mozilla\mgbxiii.exe
PID 2144 wrote to memory of 2584 N/A C:\Windows\system32\taskeng.exe C:\PROGRA~3\Mozilla\mgbxiii.exe

Processes

C:\Users\Admin\AppData\Local\Temp\7801024cad09ba88ea2a9f5d3d3207644f3c681745022e212dabbc801a5c54a6.exe

"C:\Users\Admin\AppData\Local\Temp\7801024cad09ba88ea2a9f5d3d3207644f3c681745022e212dabbc801a5c54a6.exe"

C:\Windows\system32\taskeng.exe

taskeng.exe {3F3ECF35-9061-48CE-8DBA-18779AADA0CF} S-1-5-18:NT AUTHORITY\System:Service:

C:\PROGRA~3\Mozilla\mgbxiii.exe

C:\PROGRA~3\Mozilla\mgbxiii.exe -ccvrhxi

Network

N/A

Files

memory/2108-0-0x0000000000400000-0x0000000000428000-memory.dmp

memory/2108-1-0x0000000000430000-0x000000000048B000-memory.dmp

memory/2108-7-0x0000000000400000-0x0000000000428000-memory.dmp

C:\PROGRA~3\Mozilla\mgbxiii.exe

MD5 28ef5b1f3b035fc5a5387f1317b7cc21
SHA1 1bc1bb022bfa2644e3177997288bd80acdc40e21
SHA256 6b5d11f58cef978405a333cac74a219df4b29d84e1eceb69534a2d6fb544aa39
SHA512 2a3ff9aadc647553773acbd0a112d198fe0d085e9f00e090a5df578f3bec6b534d14976a57197aefbc34ac438e1ba022276ecf95ec1564570bd09138f5f42754

memory/2584-10-0x0000000000400000-0x0000000000428000-memory.dmp

memory/2584-17-0x0000000000400000-0x0000000000428000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-06 22:28

Reported

2024-04-06 22:30

Platform

win10v2004-20240226-en

Max time kernel

146s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7801024cad09ba88ea2a9f5d3d3207644f3c681745022e212dabbc801a5c54a6.exe"

Signatures

Modifies AppInit DLL entries

persistence

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\PROGRA~3\Mozilla\ptbtmmb.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\PROGRA~3\Mozilla\ptbtmmb.exe C:\Users\Admin\AppData\Local\Temp\7801024cad09ba88ea2a9f5d3d3207644f3c681745022e212dabbc801a5c54a6.exe N/A
File created C:\PROGRA~3\Mozilla\ygweoyg.dll C:\PROGRA~3\Mozilla\ptbtmmb.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\7801024cad09ba88ea2a9f5d3d3207644f3c681745022e212dabbc801a5c54a6.exe

"C:\Users\Admin\AppData\Local\Temp\7801024cad09ba88ea2a9f5d3d3207644f3c681745022e212dabbc801a5c54a6.exe"

C:\PROGRA~3\Mozilla\ptbtmmb.exe

C:\PROGRA~3\Mozilla\ptbtmmb.exe -merxlsn

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 145.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 3.173.189.20.in-addr.arpa udp

Files

memory/2500-0-0x0000000000400000-0x0000000000428000-memory.dmp

memory/2500-1-0x0000000002170000-0x00000000021CB000-memory.dmp

C:\ProgramData\Mozilla\ptbtmmb.exe

MD5 d712db862ba93810c71fd8b3a17253bf
SHA1 003f8abfef526271efb349d0184736be138c4c4a
SHA256 e1f983f2d919be1e3fa342e5c6f27cf91f95ae8c23502354b4abdcc9a1e35c5f
SHA512 4ce3f3d1e32f2d91262bd130c6090a4cbbee5f8036ff96c1127caeceb47aca71225e384811b96f43d9c716d1b6e633696dc0bb722fc229f05c6e83b824b43a7e

memory/2500-9-0x0000000000400000-0x0000000000428000-memory.dmp

memory/4188-10-0x0000000000400000-0x0000000000428000-memory.dmp

memory/4188-11-0x0000000000D40000-0x0000000000D9B000-memory.dmp

memory/4188-17-0x0000000000400000-0x0000000000428000-memory.dmp