Malware Analysis Report

2025-08-06 01:28

Sample ID 240811-ly8crsyfje
Target d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290
SHA256 d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290
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

d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290

Threat Level: Known bad

The file d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290 was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Socks5Systemz

Detect Socks5Systemz Payload

Executes dropped EXE

Unexpected DNS network traffic destination

Loads dropped DLL

Checks installed software on the system

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of FindShellTrayWindow

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-11 09:57

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-11 09:57

Reported

2024-08-11 10:00

Platform

win10v2004-20240802-en

Max time kernel

143s

Max time network

128s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.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\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\is-QJ7FQ.tmp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.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-QJ7FQ.tmp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3844 wrote to memory of 4472 N/A C:\Users\Admin\AppData\Local\Temp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.exe C:\Users\Admin\AppData\Local\Temp\is-QJ7FQ.tmp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.tmp
PID 3844 wrote to memory of 4472 N/A C:\Users\Admin\AppData\Local\Temp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.exe C:\Users\Admin\AppData\Local\Temp\is-QJ7FQ.tmp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.tmp
PID 3844 wrote to memory of 4472 N/A C:\Users\Admin\AppData\Local\Temp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.exe C:\Users\Admin\AppData\Local\Temp\is-QJ7FQ.tmp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.tmp
PID 4472 wrote to memory of 5448 N/A C:\Users\Admin\AppData\Local\Temp\is-QJ7FQ.tmp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 4472 wrote to memory of 5448 N/A C:\Users\Admin\AppData\Local\Temp\is-QJ7FQ.tmp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 4472 wrote to memory of 5448 N/A C:\Users\Admin\AppData\Local\Temp\is-QJ7FQ.tmp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 4472 wrote to memory of 5764 N/A C:\Users\Admin\AppData\Local\Temp\is-QJ7FQ.tmp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 4472 wrote to memory of 5764 N/A C:\Users\Admin\AppData\Local\Temp\is-QJ7FQ.tmp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 4472 wrote to memory of 5764 N/A C:\Users\Admin\AppData\Local\Temp\is-QJ7FQ.tmp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe

Processes

C:\Users\Admin\AppData\Local\Temp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.exe

"C:\Users\Admin\AppData\Local\Temp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.exe"

C:\Users\Admin\AppData\Local\Temp\is-QJ7FQ.tmp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.tmp

"C:\Users\Admin\AppData\Local\Temp\is-QJ7FQ.tmp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.tmp" /SL5="$6011A,3708907,54272,C:\Users\Admin\AppData\Local\Temp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.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 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
RU 152.89.198.214:53 bbqertg.com udp
CH 185.196.8.214:80 bbqertg.com tcp
US 8.8.8.8:53 214.198.89.152.in-addr.arpa udp
NL 45.156.23.96:2023 tcp
US 8.8.8.8:53 214.8.196.185.in-addr.arpa udp
US 8.8.8.8:53 96.23.156.45.in-addr.arpa udp

Files

memory/3844-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3844-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-QJ7FQ.tmp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.tmp

MD5 d541b0e8d95d631badc9ff20ed59afdd
SHA1 617063202f52daa60cb4a04f505418b2e4778d18
SHA256 9450c883637e2515bfd934548aa48e6be252bf2ec7527e60f21ff3cb6a40afad
SHA512 edeaf7d0c0d6ec805f446f87684b18b5d9fbbd25af506824127e781c231d08357b0fc53dc2c103e89c170c00df6644d635ea0776cdb2b780ecc027e183bf9b6c

memory/4472-12-0x0000000000400000-0x00000000004BD000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-LG7MJ.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 eb127174a7c64ddd56edbcd093ec6157
SHA1 a76d43956139b7cc6378e6da90abe1944b2240c6
SHA256 75b2bf968f967f930d74b3d063d82b4535aaa169b02c5716a8da2b476f81bb7d
SHA512 a50005e6a61e380bda4c8dbbd330d8e2aaba53bdc433cbe83ce26720ac0b158b1a3fbebe7576f77a8be6a3caa6686daae46fc0a1cd3b8b214702198aa38fec7b

memory/5448-52-0x0000000000400000-0x000000000080B000-memory.dmp

memory/5448-53-0x0000000000400000-0x000000000080B000-memory.dmp

memory/5448-55-0x0000000000400000-0x000000000080B000-memory.dmp

memory/5764-59-0x0000000000400000-0x000000000080B000-memory.dmp

memory/3844-60-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4472-61-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/5764-62-0x0000000000400000-0x000000000080B000-memory.dmp

memory/5764-65-0x0000000000400000-0x000000000080B000-memory.dmp

memory/5764-68-0x0000000000400000-0x000000000080B000-memory.dmp

memory/5764-71-0x0000000000400000-0x000000000080B000-memory.dmp

memory/5764-74-0x0000000000400000-0x000000000080B000-memory.dmp

memory/5764-77-0x00000000029D0000-0x0000000002A72000-memory.dmp

memory/5764-81-0x0000000000400000-0x000000000080B000-memory.dmp

memory/5764-84-0x0000000000400000-0x000000000080B000-memory.dmp

memory/5764-87-0x0000000000400000-0x000000000080B000-memory.dmp

memory/5764-90-0x0000000000400000-0x000000000080B000-memory.dmp

memory/5764-93-0x0000000000400000-0x000000000080B000-memory.dmp

memory/5764-96-0x0000000000400000-0x000000000080B000-memory.dmp

memory/5764-99-0x0000000000400000-0x000000000080B000-memory.dmp

memory/5764-100-0x00000000029D0000-0x0000000002A72000-memory.dmp

memory/5764-101-0x00000000029D0000-0x0000000002A72000-memory.dmp

memory/5764-105-0x0000000000400000-0x000000000080B000-memory.dmp

memory/5764-108-0x0000000000400000-0x000000000080B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-11 09:57

Reported

2024-08-11 10:00

Platform

win11-20240802-en

Max time kernel

147s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.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 141.98.234.31 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\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\is-P227D.tmp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.tmp N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-P227D.tmp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4808 wrote to memory of 5100 N/A C:\Users\Admin\AppData\Local\Temp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.exe C:\Users\Admin\AppData\Local\Temp\is-P227D.tmp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.tmp
PID 4808 wrote to memory of 5100 N/A C:\Users\Admin\AppData\Local\Temp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.exe C:\Users\Admin\AppData\Local\Temp\is-P227D.tmp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.tmp
PID 4808 wrote to memory of 5100 N/A C:\Users\Admin\AppData\Local\Temp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.exe C:\Users\Admin\AppData\Local\Temp\is-P227D.tmp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.tmp
PID 5100 wrote to memory of 400 N/A C:\Users\Admin\AppData\Local\Temp\is-P227D.tmp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 5100 wrote to memory of 400 N/A C:\Users\Admin\AppData\Local\Temp\is-P227D.tmp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 5100 wrote to memory of 400 N/A C:\Users\Admin\AppData\Local\Temp\is-P227D.tmp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 5100 wrote to memory of 2276 N/A C:\Users\Admin\AppData\Local\Temp\is-P227D.tmp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 5100 wrote to memory of 2276 N/A C:\Users\Admin\AppData\Local\Temp\is-P227D.tmp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 5100 wrote to memory of 2276 N/A C:\Users\Admin\AppData\Local\Temp\is-P227D.tmp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe

Processes

C:\Users\Admin\AppData\Local\Temp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.exe

"C:\Users\Admin\AppData\Local\Temp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.exe"

C:\Users\Admin\AppData\Local\Temp\is-P227D.tmp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.tmp

"C:\Users\Admin\AppData\Local\Temp\is-P227D.tmp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.tmp" /SL5="$50104,3708907,54272,C:\Users\Admin\AppData\Local\Temp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.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
HK 141.98.234.31:53 ccninog.net udp
CH 185.196.8.214:80 ccninog.net tcp
NL 45.156.23.96:2023 tcp
US 8.8.8.8:53 214.8.196.185.in-addr.arpa udp

Files

memory/4808-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4808-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-P227D.tmp\d98f0eb68bd38ebcbeea4657fc966e8326dfb6bae29c027413dedd8c06da6290.tmp

MD5 d541b0e8d95d631badc9ff20ed59afdd
SHA1 617063202f52daa60cb4a04f505418b2e4778d18
SHA256 9450c883637e2515bfd934548aa48e6be252bf2ec7527e60f21ff3cb6a40afad
SHA512 edeaf7d0c0d6ec805f446f87684b18b5d9fbbd25af506824127e781c231d08357b0fc53dc2c103e89c170c00df6644d635ea0776cdb2b780ecc027e183bf9b6c

memory/5100-8-0x0000000000400000-0x00000000004BD000-memory.dmp

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

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 eb127174a7c64ddd56edbcd093ec6157
SHA1 a76d43956139b7cc6378e6da90abe1944b2240c6
SHA256 75b2bf968f967f930d74b3d063d82b4535aaa169b02c5716a8da2b476f81bb7d
SHA512 a50005e6a61e380bda4c8dbbd330d8e2aaba53bdc433cbe83ce26720ac0b158b1a3fbebe7576f77a8be6a3caa6686daae46fc0a1cd3b8b214702198aa38fec7b

memory/400-52-0x0000000000400000-0x000000000080B000-memory.dmp

memory/400-53-0x0000000000400000-0x000000000080B000-memory.dmp

memory/400-56-0x0000000000400000-0x000000000080B000-memory.dmp

memory/400-57-0x0000000000400000-0x000000000080B000-memory.dmp

memory/2276-60-0x0000000000400000-0x000000000080B000-memory.dmp

memory/4808-61-0x0000000000400000-0x0000000000414000-memory.dmp

memory/5100-62-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/2276-63-0x0000000000400000-0x000000000080B000-memory.dmp

memory/2276-66-0x0000000000400000-0x000000000080B000-memory.dmp

memory/2276-69-0x0000000000400000-0x000000000080B000-memory.dmp

memory/2276-72-0x0000000000400000-0x000000000080B000-memory.dmp

memory/2276-75-0x0000000000400000-0x000000000080B000-memory.dmp

memory/2276-78-0x0000000002AE0000-0x0000000002B82000-memory.dmp

memory/2276-80-0x0000000000400000-0x000000000080B000-memory.dmp

memory/2276-86-0x0000000000400000-0x000000000080B000-memory.dmp

memory/2276-89-0x0000000000400000-0x000000000080B000-memory.dmp

memory/2276-92-0x0000000000400000-0x000000000080B000-memory.dmp

memory/2276-95-0x0000000000400000-0x000000000080B000-memory.dmp

memory/2276-98-0x0000000000400000-0x000000000080B000-memory.dmp

memory/2276-101-0x0000000000400000-0x000000000080B000-memory.dmp

memory/2276-103-0x0000000002AE0000-0x0000000002B82000-memory.dmp

memory/2276-102-0x0000000002AE0000-0x0000000002B82000-memory.dmp

memory/2276-107-0x0000000000400000-0x000000000080B000-memory.dmp

memory/2276-110-0x0000000000400000-0x000000000080B000-memory.dmp