Malware Analysis Report

2025-08-05 17:00

Sample ID 240108-d8k18abec5
Target 4a579aa816c17d05b726de7080fc75e9
SHA256 f765a5af88b140ab25e41fb5c9e9d25899bd576d2fa8dc72f056eb79c6d59b78
Tags
score
3/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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
3/10

SHA256

f765a5af88b140ab25e41fb5c9e9d25899bd576d2fa8dc72f056eb79c6d59b78

Threat Level: Likely benign

The file 4a579aa816c17d05b726de7080fc75e9 was found to be: Likely benign.

Malicious Activity Summary


Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-01-08 03:40

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-08 03:40

Reported

2024-01-08 03:43

Platform

win7-20231129-en

Max time kernel

117s

Max time network

118s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4a579aa816c17d05b726de7080fc75e9.dll,#1

Signatures

Processes

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4a579aa816c17d05b726de7080fc75e9.dll,#1

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4a579aa816c17d05b726de7080fc75e9.dll,#1

Network

N/A

Files

memory/936-0-0x0000000010000000-0x000000001002B000-memory.dmp

memory/936-2-0x0000000010000000-0x000000001002B000-memory.dmp

memory/936-1-0x0000000010000000-0x000000001002B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-08 03:40

Reported

2024-01-08 03:43

Platform

win10v2004-20231215-en

Max time kernel

147s

Max time network

172s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4a579aa816c17d05b726de7080fc75e9.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1952 wrote to memory of 3164 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1952 wrote to memory of 3164 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1952 wrote to memory of 3164 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4a579aa816c17d05b726de7080fc75e9.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\4a579aa816c17d05b726de7080fc75e9.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3164 -ip 3164

Network

Country Destination Domain Proto
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 134.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 21.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 178.113.50.184.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp

Files

memory/3164-0-0x0000000010000000-0x000000001002B000-memory.dmp

memory/3164-1-0x0000000010000000-0x000000001002B000-memory.dmp