Malware Analysis Report

2025-05-28 18:04

Sample ID 241109-zy4lgasdpb
Target Flasher.zip
SHA256 646b0a869c221a54fe1f311e8576bbf9c5ee6e1e4f4f15a327115cf7951ad395
Tags
aspackv2 discovery
score
7/10

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
7/10

SHA256

646b0a869c221a54fe1f311e8576bbf9c5ee6e1e4f4f15a327115cf7951ad395

Threat Level: Shows suspicious behavior

The file Flasher.zip was found to be: Shows suspicious behavior.

Malicious Activity Summary

aspackv2 discovery

ASPack v2.12-2.42

Executes dropped EXE

System Location Discovery: System Language Discovery

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-09 21:08

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-09 21:08

Reported

2024-11-09 21:11

Platform

win7-20241023-en

Max time kernel

133s

Max time network

126s

Command Line

"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\Flasher.zip"

Signatures

ASPack v2.12-2.42

aspackv2
Description Indicator Process Target
N/A N/A N/A N/A

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\7zO839018F6\[email protected] N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\7zO839B67A7\[email protected] N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\[email protected] N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\[email protected] N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\[email protected] N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Program Files\7-Zip\7zFM.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeRestorePrivilege N/A C:\Program Files\7-Zip\7zFM.exe N/A
Token: 35 N/A C:\Program Files\7-Zip\7zFM.exe N/A
Token: SeSecurityPrivilege N/A C:\Program Files\7-Zip\7zFM.exe N/A
Token: SeSecurityPrivilege N/A C:\Program Files\7-Zip\7zFM.exe N/A
Token: SeSecurityPrivilege N/A C:\Program Files\7-Zip\7zFM.exe N/A
Token: SeSecurityPrivilege N/A C:\Program Files\7-Zip\7zFM.exe N/A
Token: 33 N/A C:\Windows\system32\AUDIODG.EXE N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\system32\AUDIODG.EXE N/A
Token: 33 N/A C:\Windows\system32\AUDIODG.EXE N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\system32\AUDIODG.EXE N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Program Files\7-Zip\7zFM.exe N/A
N/A N/A C:\Program Files\7-Zip\7zFM.exe N/A
N/A N/A C:\Program Files\7-Zip\7zFM.exe N/A
N/A N/A C:\Program Files\7-Zip\7zFM.exe N/A
N/A N/A C:\Program Files\7-Zip\7zFM.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2360 wrote to memory of 2612 N/A C:\Program Files\7-Zip\7zFM.exe C:\Users\Admin\AppData\Local\Temp\7zO839018F6\[email protected]
PID 2360 wrote to memory of 2612 N/A C:\Program Files\7-Zip\7zFM.exe C:\Users\Admin\AppData\Local\Temp\7zO839018F6\[email protected]
PID 2360 wrote to memory of 2612 N/A C:\Program Files\7-Zip\7zFM.exe C:\Users\Admin\AppData\Local\Temp\7zO839018F6\[email protected]
PID 2360 wrote to memory of 2612 N/A C:\Program Files\7-Zip\7zFM.exe C:\Users\Admin\AppData\Local\Temp\7zO839018F6\[email protected]
PID 2360 wrote to memory of 2440 N/A C:\Program Files\7-Zip\7zFM.exe C:\Users\Admin\AppData\Local\Temp\7zO839B67A7\[email protected]
PID 2360 wrote to memory of 2440 N/A C:\Program Files\7-Zip\7zFM.exe C:\Users\Admin\AppData\Local\Temp\7zO839B67A7\[email protected]
PID 2360 wrote to memory of 2440 N/A C:\Program Files\7-Zip\7zFM.exe C:\Users\Admin\AppData\Local\Temp\7zO839B67A7\[email protected]
PID 2360 wrote to memory of 2440 N/A C:\Program Files\7-Zip\7zFM.exe C:\Users\Admin\AppData\Local\Temp\7zO839B67A7\[email protected]
PID 2360 wrote to memory of 2808 N/A C:\Program Files\7-Zip\7zFM.exe C:\Users\Admin\AppData\Local\Temp\[email protected]
PID 2360 wrote to memory of 2808 N/A C:\Program Files\7-Zip\7zFM.exe C:\Users\Admin\AppData\Local\Temp\[email protected]
PID 2360 wrote to memory of 2808 N/A C:\Program Files\7-Zip\7zFM.exe C:\Users\Admin\AppData\Local\Temp\[email protected]
PID 2360 wrote to memory of 2808 N/A C:\Program Files\7-Zip\7zFM.exe C:\Users\Admin\AppData\Local\Temp\[email protected]
PID 2360 wrote to memory of 2756 N/A C:\Program Files\7-Zip\7zFM.exe C:\Users\Admin\AppData\Local\Temp\[email protected]
PID 2360 wrote to memory of 2756 N/A C:\Program Files\7-Zip\7zFM.exe C:\Users\Admin\AppData\Local\Temp\[email protected]
PID 2360 wrote to memory of 2756 N/A C:\Program Files\7-Zip\7zFM.exe C:\Users\Admin\AppData\Local\Temp\[email protected]
PID 2360 wrote to memory of 2756 N/A C:\Program Files\7-Zip\7zFM.exe C:\Users\Admin\AppData\Local\Temp\[email protected]
PID 2360 wrote to memory of 2384 N/A C:\Program Files\7-Zip\7zFM.exe C:\Users\Admin\AppData\Local\Temp\[email protected]
PID 2360 wrote to memory of 2384 N/A C:\Program Files\7-Zip\7zFM.exe C:\Users\Admin\AppData\Local\Temp\[email protected]
PID 2360 wrote to memory of 2384 N/A C:\Program Files\7-Zip\7zFM.exe C:\Users\Admin\AppData\Local\Temp\[email protected]
PID 2360 wrote to memory of 2384 N/A C:\Program Files\7-Zip\7zFM.exe C:\Users\Admin\AppData\Local\Temp\[email protected]

Processes

C:\Program Files\7-Zip\7zFM.exe

"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\Flasher.zip"

C:\Users\Admin\AppData\Local\Temp\7zO839018F6\[email protected]

"C:\Users\Admin\AppData\Local\Temp\7zO839018F6\[email protected]"

C:\Users\Admin\AppData\Local\Temp\7zO839B67A7\[email protected]

"C:\Users\Admin\AppData\Local\Temp\7zO839B67A7\[email protected]"

C:\Users\Admin\AppData\Local\Temp\[email protected]

"C:\Users\Admin\AppData\Local\Temp\[email protected]"

C:\Users\Admin\AppData\Local\Temp\[email protected]

"C:\Users\Admin\AppData\Local\Temp\[email protected]"

C:\Windows\system32\AUDIODG.EXE

C:\Windows\system32\AUDIODG.EXE 0x574

C:\Users\Admin\AppData\Local\Temp\[email protected]

"C:\Users\Admin\AppData\Local\Temp\[email protected]"

Network

N/A

Files

C:\Users\Admin\AppData\Local\Temp\7zO839018F6\[email protected]

MD5 9254ca1da9ff8ad492ca5fa06ca181c6
SHA1 70fa62e6232eae52467d29cf1c1dacb8a7aeab90
SHA256 30676ad5dc94c3fec3d77d87439b2bf0a1aaa7f01900b68002a06f11caee9ce6
SHA512 a84fbbdea4e743f3e41878b9cf6db219778f1479aa478100718af9fc8d7620fc7a3295507e11df39c7863cb896f946514e50368db480796b6603c8de5580685a

memory/2612-27-0x0000000000400000-0x00000000004A4000-memory.dmp

memory/2440-30-0x0000000000400000-0x00000000004A4000-memory.dmp

memory/2612-38-0x0000000000400000-0x00000000004A4000-memory.dmp

memory/2440-61-0x0000000000400000-0x00000000004A4000-memory.dmp

memory/2808-63-0x0000000000400000-0x00000000004A4000-memory.dmp

memory/2756-64-0x0000000000400000-0x00000000004A4000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-09 21:08

Reported

2024-11-09 21:11

Platform

win10v2004-20241007-en

Max time kernel

92s

Max time network

135s

Command Line

"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\Flasher.zip"

Signatures

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeRestorePrivilege N/A C:\Program Files\7-Zip\7zFM.exe N/A
Token: 35 N/A C:\Program Files\7-Zip\7zFM.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Program Files\7-Zip\7zFM.exe N/A

Processes

C:\Program Files\7-Zip\7zFM.exe

"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\Flasher.zip"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 72.208.201.84.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp

Files

N/A