Malware Analysis Report

2025-03-14 22:45

Sample ID 240406-1mxjfscf42
Target 653365605e3d2e32266a8fd0f1f8a93711b517b5c69aab08b900b52c7ad24d1a
SHA256 653365605e3d2e32266a8fd0f1f8a93711b517b5c69aab08b900b52c7ad24d1a
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

653365605e3d2e32266a8fd0f1f8a93711b517b5c69aab08b900b52c7ad24d1a

Threat Level: Likely malicious

The file 653365605e3d2e32266a8fd0f1f8a93711b517b5c69aab08b900b52c7ad24d1a 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 21:46

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-06 21:46

Reported

2024-04-06 21:49

Platform

win7-20240221-en

Max time kernel

122s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\653365605e3d2e32266a8fd0f1f8a93711b517b5c69aab08b900b52c7ad24d1a.exe"

Signatures

Modifies AppInit DLL entries

persistence

Executes dropped EXE

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

Drops file in Program Files directory

Description Indicator Process Target
File created C:\PROGRA~3\Mozilla\dbilzqh.exe C:\Users\Admin\AppData\Local\Temp\653365605e3d2e32266a8fd0f1f8a93711b517b5c69aab08b900b52c7ad24d1a.exe N/A
File created C:\PROGRA~3\Mozilla\zxoabnc.dll C:\PROGRA~3\Mozilla\dbilzqh.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 280 wrote to memory of 2764 N/A C:\Windows\system32\taskeng.exe C:\PROGRA~3\Mozilla\dbilzqh.exe
PID 280 wrote to memory of 2764 N/A C:\Windows\system32\taskeng.exe C:\PROGRA~3\Mozilla\dbilzqh.exe
PID 280 wrote to memory of 2764 N/A C:\Windows\system32\taskeng.exe C:\PROGRA~3\Mozilla\dbilzqh.exe
PID 280 wrote to memory of 2764 N/A C:\Windows\system32\taskeng.exe C:\PROGRA~3\Mozilla\dbilzqh.exe

Processes

C:\Users\Admin\AppData\Local\Temp\653365605e3d2e32266a8fd0f1f8a93711b517b5c69aab08b900b52c7ad24d1a.exe

"C:\Users\Admin\AppData\Local\Temp\653365605e3d2e32266a8fd0f1f8a93711b517b5c69aab08b900b52c7ad24d1a.exe"

C:\Windows\system32\taskeng.exe

taskeng.exe {5E5C7FEC-93D0-48FD-82A9-8A9D9089060A} S-1-5-18:NT AUTHORITY\System:Service:

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

C:\PROGRA~3\Mozilla\dbilzqh.exe -kwinamg

Network

N/A

Files

memory/2940-0-0x0000000000400000-0x0000000000428000-memory.dmp

memory/2940-1-0x0000000000370000-0x00000000003CB000-memory.dmp

memory/2940-7-0x0000000000400000-0x0000000000428000-memory.dmp

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

MD5 c116e7020d69efc68c3c6632e1ba1e15
SHA1 b04f124988abe7b00f078770b1b64cc976efcea1
SHA256 2be7d4bdd57afd838493d715bc6c8ecd7be94d6608edf348b7177eb2208e0ef2
SHA512 417aaf662d9ea35f6d935ae1513c031e920f12a576eb9751d4ca45ba5a84b450257633fb8948bfd44402e57beb5760e0b7ffeedd8628c25b421a62e3b50897bd

memory/2764-10-0x0000000000400000-0x0000000000428000-memory.dmp

memory/2764-11-0x0000000000240000-0x000000000029B000-memory.dmp

memory/2764-17-0x0000000000400000-0x0000000000428000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-06 21:46

Reported

2024-04-06 21:49

Platform

win10v2004-20240226-en

Max time kernel

93s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\653365605e3d2e32266a8fd0f1f8a93711b517b5c69aab08b900b52c7ad24d1a.exe"

Signatures

Modifies AppInit DLL entries

persistence

Executes dropped EXE

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

Drops file in Program Files directory

Description Indicator Process Target
File created C:\PROGRA~3\Mozilla\gfuniul.exe C:\Users\Admin\AppData\Local\Temp\653365605e3d2e32266a8fd0f1f8a93711b517b5c69aab08b900b52c7ad24d1a.exe N/A
File created C:\PROGRA~3\Mozilla\kzlcazd.dll C:\PROGRA~3\Mozilla\gfuniul.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\653365605e3d2e32266a8fd0f1f8a93711b517b5c69aab08b900b52c7ad24d1a.exe

"C:\Users\Admin\AppData\Local\Temp\653365605e3d2e32266a8fd0f1f8a93711b517b5c69aab08b900b52c7ad24d1a.exe"

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

C:\PROGRA~3\Mozilla\gfuniul.exe -lfdzfzd

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 105.83.221.88.in-addr.arpa udp

Files

memory/4844-0-0x0000000000400000-0x0000000000428000-memory.dmp

memory/4844-1-0x0000000002170000-0x00000000021CB000-memory.dmp

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

MD5 7d127a07b57ff4fe05eae65f5e9b1115
SHA1 4fcfe3298c0384dc18c135d13382b64aae8dc741
SHA256 d8bbf9838ff44a4df85f88ff67d7cdad0f934c679c5a17da8366d8de35e57db0
SHA512 4c3fe70f0dd9082453e18972b14f3b9bdf49393b0079468c644cf392647a695d98415ca47b1c7547374e9017709be8893ff8788f273ba5b0f928f1b58dda521d

memory/5020-8-0x0000000000400000-0x0000000000428000-memory.dmp

memory/4844-10-0x0000000000400000-0x0000000000428000-memory.dmp

memory/5020-11-0x0000000000460000-0x00000000004BB000-memory.dmp

memory/5020-17-0x0000000000400000-0x0000000000428000-memory.dmp