Malware Analysis Report

2025-08-06 01:28

Sample ID 240811-kr54dssfqr
Target 8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da
SHA256 8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da
Tags
socks5systemz botnet discovery
score
10/10

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
10/10

SHA256

8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da

Threat Level: Known bad

The file 8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Socks5Systemz

Detect Socks5Systemz Payload

Unexpected DNS network traffic destination

Executes dropped EXE

Loads dropped DLL

Checks installed software on the system

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-11 08:51

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-11 08:51

Reported

2024-08-11 08:53

Platform

win10v2004-20240802-en

Max time kernel

142s

Max time network

137s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.exe"

Signatures

Detect Socks5Systemz Payload

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

Socks5Systemz

botnet socks5systemz

Unexpected DNS network traffic destination

Description Indicator Process Target
Destination IP 152.89.198.214 N/A N/A

Checks installed software on the system

discovery

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\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\is-PGVD5.tmp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.tmp N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-PGVD5.tmp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3172 wrote to memory of 5092 N/A C:\Users\Admin\AppData\Local\Temp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.exe C:\Users\Admin\AppData\Local\Temp\is-PGVD5.tmp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.tmp
PID 3172 wrote to memory of 5092 N/A C:\Users\Admin\AppData\Local\Temp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.exe C:\Users\Admin\AppData\Local\Temp\is-PGVD5.tmp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.tmp
PID 3172 wrote to memory of 5092 N/A C:\Users\Admin\AppData\Local\Temp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.exe C:\Users\Admin\AppData\Local\Temp\is-PGVD5.tmp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.tmp
PID 5092 wrote to memory of 1876 N/A C:\Users\Admin\AppData\Local\Temp\is-PGVD5.tmp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 5092 wrote to memory of 1876 N/A C:\Users\Admin\AppData\Local\Temp\is-PGVD5.tmp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 5092 wrote to memory of 1876 N/A C:\Users\Admin\AppData\Local\Temp\is-PGVD5.tmp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 5092 wrote to memory of 400 N/A C:\Users\Admin\AppData\Local\Temp\is-PGVD5.tmp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 5092 wrote to memory of 400 N/A C:\Users\Admin\AppData\Local\Temp\is-PGVD5.tmp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 5092 wrote to memory of 400 N/A C:\Users\Admin\AppData\Local\Temp\is-PGVD5.tmp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.exe

"C:\Users\Admin\AppData\Local\Temp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.exe"

C:\Users\Admin\AppData\Local\Temp\is-PGVD5.tmp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.tmp

"C:\Users\Admin\AppData\Local\Temp\is-PGVD5.tmp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.tmp" /SL5="$6023E,3725716,54272,C:\Users\Admin\AppData\Local\Temp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.exe"

C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe

"C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe" -i

C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe

"C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe" -s

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
RU 152.89.198.214:53 bpihuad.com udp
CH 185.196.8.214:80 bpihuad.com tcp
US 8.8.8.8:53 214.198.89.152.in-addr.arpa udp
NL 45.156.23.96:2023 tcp
US 8.8.8.8:53 96.23.156.45.in-addr.arpa udp
US 8.8.8.8:53 214.8.196.185.in-addr.arpa udp

Files

memory/3172-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3172-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-PGVD5.tmp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.tmp

MD5 d541b0e8d95d631badc9ff20ed59afdd
SHA1 617063202f52daa60cb4a04f505418b2e4778d18
SHA256 9450c883637e2515bfd934548aa48e6be252bf2ec7527e60f21ff3cb6a40afad
SHA512 edeaf7d0c0d6ec805f446f87684b18b5d9fbbd25af506824127e781c231d08357b0fc53dc2c103e89c170c00df6644d635ea0776cdb2b780ecc027e183bf9b6c

C:\Users\Admin\AppData\Local\Temp\is-5BVO5.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

memory/5092-13-0x0000000000400000-0x00000000004BD000-memory.dmp

C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe

MD5 dad988e230d61db78015b5675909854a
SHA1 9498387f243102a166e0a1b9cc13aefb4cfb84e7
SHA256 5bb318cf7e15c8043ca54da809d3418f761c0c38f356b028dd60541278ada3e9
SHA512 8a05347774d50f89a76298b40f4e6fe9d1f8d91c6ce73ae0dd85fa00888a7e97de80636ae08d4e4a159bec34c9fcf87ac70149048a35b597ca0cadc7bca31fb8

memory/1876-52-0x0000000000400000-0x000000000080F000-memory.dmp

memory/1876-53-0x0000000000400000-0x000000000080F000-memory.dmp

memory/1876-56-0x0000000000400000-0x000000000080F000-memory.dmp

memory/400-59-0x0000000000400000-0x000000000080F000-memory.dmp

memory/3172-60-0x0000000000400000-0x0000000000414000-memory.dmp

memory/5092-61-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/400-62-0x0000000000400000-0x000000000080F000-memory.dmp

memory/400-65-0x0000000000400000-0x000000000080F000-memory.dmp

memory/400-68-0x0000000000400000-0x000000000080F000-memory.dmp

memory/400-71-0x0000000000400000-0x000000000080F000-memory.dmp

memory/400-74-0x0000000000400000-0x000000000080F000-memory.dmp

memory/400-77-0x0000000000B00000-0x0000000000BA2000-memory.dmp

memory/400-79-0x0000000000400000-0x000000000080F000-memory.dmp

memory/400-84-0x0000000000400000-0x000000000080F000-memory.dmp

memory/400-87-0x0000000000400000-0x000000000080F000-memory.dmp

memory/400-90-0x0000000000400000-0x000000000080F000-memory.dmp

memory/400-93-0x0000000000400000-0x000000000080F000-memory.dmp

memory/400-96-0x0000000000400000-0x000000000080F000-memory.dmp

memory/400-99-0x0000000000400000-0x000000000080F000-memory.dmp

memory/400-100-0x0000000000B00000-0x0000000000BA2000-memory.dmp

memory/400-101-0x0000000000B00000-0x0000000000BA2000-memory.dmp

memory/400-105-0x0000000000400000-0x000000000080F000-memory.dmp

memory/400-108-0x0000000000400000-0x000000000080F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-11 08:51

Reported

2024-08-11 08:53

Platform

win11-20240802-en

Max time kernel

147s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.exe"

Signatures

Detect Socks5Systemz Payload

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

Socks5Systemz

botnet socks5systemz

Unexpected DNS network traffic destination

Description Indicator Process Target
Destination IP 91.211.247.248 N/A N/A

Checks installed software on the system

discovery

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\XULPlayer\xulplayer.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\is-CSFHE.tmp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.tmp N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-CSFHE.tmp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1556 wrote to memory of 2380 N/A C:\Users\Admin\AppData\Local\Temp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.exe C:\Users\Admin\AppData\Local\Temp\is-CSFHE.tmp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.tmp
PID 1556 wrote to memory of 2380 N/A C:\Users\Admin\AppData\Local\Temp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.exe C:\Users\Admin\AppData\Local\Temp\is-CSFHE.tmp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.tmp
PID 1556 wrote to memory of 2380 N/A C:\Users\Admin\AppData\Local\Temp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.exe C:\Users\Admin\AppData\Local\Temp\is-CSFHE.tmp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.tmp
PID 2380 wrote to memory of 2232 N/A C:\Users\Admin\AppData\Local\Temp\is-CSFHE.tmp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 2380 wrote to memory of 2232 N/A C:\Users\Admin\AppData\Local\Temp\is-CSFHE.tmp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 2380 wrote to memory of 2232 N/A C:\Users\Admin\AppData\Local\Temp\is-CSFHE.tmp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 2380 wrote to memory of 4932 N/A C:\Users\Admin\AppData\Local\Temp\is-CSFHE.tmp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 2380 wrote to memory of 4932 N/A C:\Users\Admin\AppData\Local\Temp\is-CSFHE.tmp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 2380 wrote to memory of 4932 N/A C:\Users\Admin\AppData\Local\Temp\is-CSFHE.tmp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.exe

"C:\Users\Admin\AppData\Local\Temp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.exe"

C:\Users\Admin\AppData\Local\Temp\is-CSFHE.tmp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.tmp

"C:\Users\Admin\AppData\Local\Temp\is-CSFHE.tmp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.tmp" /SL5="$50274,3725716,54272,C:\Users\Admin\AppData\Local\Temp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.exe"

C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe

"C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe" -i

C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe

"C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe" -s

Network

Country Destination Domain Proto
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
LT 91.211.247.248:53 bunmomo.com udp
CH 185.196.8.214:80 bunmomo.com tcp
NL 45.156.23.96:2023 tcp

Files

memory/1556-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1556-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-CSFHE.tmp\8e13e4236f6d114ea5e1653149b184caf9d761a3e964aad0b9149ac401d5a4da.tmp

MD5 d541b0e8d95d631badc9ff20ed59afdd
SHA1 617063202f52daa60cb4a04f505418b2e4778d18
SHA256 9450c883637e2515bfd934548aa48e6be252bf2ec7527e60f21ff3cb6a40afad
SHA512 edeaf7d0c0d6ec805f446f87684b18b5d9fbbd25af506824127e781c231d08357b0fc53dc2c103e89c170c00df6644d635ea0776cdb2b780ecc027e183bf9b6c

memory/2380-9-0x0000000000400000-0x00000000004BD000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-7TO08.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe

MD5 dad988e230d61db78015b5675909854a
SHA1 9498387f243102a166e0a1b9cc13aefb4cfb84e7
SHA256 5bb318cf7e15c8043ca54da809d3418f761c0c38f356b028dd60541278ada3e9
SHA512 8a05347774d50f89a76298b40f4e6fe9d1f8d91c6ce73ae0dd85fa00888a7e97de80636ae08d4e4a159bec34c9fcf87ac70149048a35b597ca0cadc7bca31fb8

memory/2232-52-0x0000000000400000-0x000000000080F000-memory.dmp

memory/2232-53-0x0000000000400000-0x000000000080F000-memory.dmp

memory/2232-55-0x0000000000400000-0x000000000080F000-memory.dmp

memory/2232-56-0x0000000000400000-0x000000000080F000-memory.dmp

memory/4932-59-0x0000000000400000-0x000000000080F000-memory.dmp

memory/1556-60-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2380-61-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/4932-62-0x0000000000400000-0x000000000080F000-memory.dmp

memory/4932-65-0x0000000000400000-0x000000000080F000-memory.dmp

memory/4932-66-0x0000000000400000-0x000000000080F000-memory.dmp

memory/4932-69-0x0000000000400000-0x000000000080F000-memory.dmp

memory/4932-72-0x0000000000400000-0x000000000080F000-memory.dmp

memory/4932-75-0x0000000000400000-0x000000000080F000-memory.dmp

memory/4932-78-0x0000000002640000-0x00000000026E2000-memory.dmp

memory/4932-81-0x0000000000400000-0x000000000080F000-memory.dmp

memory/4932-86-0x0000000000400000-0x000000000080F000-memory.dmp

memory/4932-89-0x0000000000400000-0x000000000080F000-memory.dmp

memory/4932-92-0x0000000000400000-0x000000000080F000-memory.dmp

memory/4932-95-0x0000000000400000-0x000000000080F000-memory.dmp

memory/4932-98-0x0000000000400000-0x000000000080F000-memory.dmp

memory/4932-101-0x0000000000400000-0x000000000080F000-memory.dmp

memory/4932-103-0x0000000002640000-0x00000000026E2000-memory.dmp

memory/4932-102-0x0000000002640000-0x00000000026E2000-memory.dmp

memory/4932-107-0x0000000000400000-0x000000000080F000-memory.dmp

memory/4932-110-0x0000000000400000-0x000000000080F000-memory.dmp