Malware Analysis Report

2024-10-16 06:27

Sample ID 220201-th8ycshef9
Target a407101bb3f2cf7f34ee5b0025fa80d7c488dd7aa789522333461fa5d73b69e7
SHA256 a407101bb3f2cf7f34ee5b0025fa80d7c488dd7aa789522333461fa5d73b69e7
Tags
ta505 upx
score
10/10

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
10/10

SHA256

a407101bb3f2cf7f34ee5b0025fa80d7c488dd7aa789522333461fa5d73b69e7

Threat Level: Known bad

The file a407101bb3f2cf7f34ee5b0025fa80d7c488dd7aa789522333461fa5d73b69e7 was found to be: Known bad.

Malicious Activity Summary

ta505 upx

TA505

Blocklisted process makes network request

UPX packed file

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2022-02-01 16:04

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-02-01 16:04

Reported

2022-02-02 06:43

Platform

win7-en-20211208

Max time kernel

120s

Max time network

140s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\a407101bb3f2cf7f34ee5b0025fa80d7c488dd7aa789522333461fa5d73b69e7.dll,#1

Signatures

TA505

ta505

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

UPX packed file

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1688 wrote to memory of 1588 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1688 wrote to memory of 1588 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1688 wrote to memory of 1588 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1688 wrote to memory of 1588 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1688 wrote to memory of 1588 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1688 wrote to memory of 1588 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1688 wrote to memory of 1588 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\a407101bb3f2cf7f34ee5b0025fa80d7c488dd7aa789522333461fa5d73b69e7.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\a407101bb3f2cf7f34ee5b0025fa80d7c488dd7aa789522333461fa5d73b69e7.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 msonebox.com udp
US 204.11.56.48:443 msonebox.com tcp

Files

memory/1588-54-0x0000000076421000-0x0000000076423000-memory.dmp

memory/1588-55-0x0000000000120000-0x0000000000121000-memory.dmp

memory/1588-56-0x0000000010000000-0x0000000010052000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-02-01 16:04

Reported

2022-02-02 06:43

Platform

win10v2004-en-20220112

Max time kernel

169s

Max time network

182s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\a407101bb3f2cf7f34ee5b0025fa80d7c488dd7aa789522333461fa5d73b69e7.dll,#1

Signatures

TA505

ta505

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

UPX packed file

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2464 wrote to memory of 1596 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2464 wrote to memory of 1596 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2464 wrote to memory of 1596 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\a407101bb3f2cf7f34ee5b0025fa80d7c488dd7aa789522333461fa5d73b69e7.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\a407101bb3f2cf7f34ee5b0025fa80d7c488dd7aa789522333461fa5d73b69e7.dll,#1

Network

Country Destination Domain Proto
IE 40.126.31.4:443 tcp
US 8.8.8.8:53 settings-win.data.microsoft.com udp
US 52.167.17.97:443 settings-win.data.microsoft.com tcp
US 8.8.8.8:53 msonebox.com udp
US 204.11.56.48:443 msonebox.com tcp

Files

memory/1596-130-0x0000000000BB0000-0x0000000000BB1000-memory.dmp

memory/1596-131-0x0000000010000000-0x0000000010052000-memory.dmp