Malware Analysis Report

2025-08-06 01:28

Sample ID 240811-hg9ygsygln
Target 0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400
SHA256 0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400
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

0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400

Threat Level: Known bad

The file 0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400 was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Detect Socks5Systemz Payload

Socks5Systemz

Loads dropped DLL

Executes dropped EXE

Unexpected DNS network traffic destination

Checks installed software on the system

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-11 06:43

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-11 06:43

Reported

2024-08-11 06:46

Platform

win10v2004-20240802-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.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 45.155.250.90 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\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\is-5HFMP.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.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-5HFMP.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4908 wrote to memory of 2044 N/A C:\Users\Admin\AppData\Local\Temp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.exe C:\Users\Admin\AppData\Local\Temp\is-5HFMP.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp
PID 4908 wrote to memory of 2044 N/A C:\Users\Admin\AppData\Local\Temp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.exe C:\Users\Admin\AppData\Local\Temp\is-5HFMP.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp
PID 4908 wrote to memory of 2044 N/A C:\Users\Admin\AppData\Local\Temp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.exe C:\Users\Admin\AppData\Local\Temp\is-5HFMP.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp
PID 2044 wrote to memory of 344 N/A C:\Users\Admin\AppData\Local\Temp\is-5HFMP.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 2044 wrote to memory of 344 N/A C:\Users\Admin\AppData\Local\Temp\is-5HFMP.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 2044 wrote to memory of 344 N/A C:\Users\Admin\AppData\Local\Temp\is-5HFMP.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 2044 wrote to memory of 4104 N/A C:\Users\Admin\AppData\Local\Temp\is-5HFMP.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 2044 wrote to memory of 4104 N/A C:\Users\Admin\AppData\Local\Temp\is-5HFMP.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 2044 wrote to memory of 4104 N/A C:\Users\Admin\AppData\Local\Temp\is-5HFMP.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe

Processes

C:\Users\Admin\AppData\Local\Temp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.exe

"C:\Users\Admin\AppData\Local\Temp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.exe"

C:\Users\Admin\AppData\Local\Temp\is-5HFMP.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp

"C:\Users\Admin\AppData\Local\Temp\is-5HFMP.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp" /SL5="$A02CA,3561838,54272,C:\Users\Admin\AppData\Local\Temp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.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 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net 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
SE 45.155.250.90:53 burbsmb.com udp
CH 185.196.8.214:80 burbsmb.com tcp
US 8.8.8.8:53 90.250.155.45.in-addr.arpa udp
US 8.8.8.8:53 214.8.196.185.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

Files

memory/4908-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4908-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-5HFMP.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp

MD5 d541b0e8d95d631badc9ff20ed59afdd
SHA1 617063202f52daa60cb4a04f505418b2e4778d18
SHA256 9450c883637e2515bfd934548aa48e6be252bf2ec7527e60f21ff3cb6a40afad
SHA512 edeaf7d0c0d6ec805f446f87684b18b5d9fbbd25af506824127e781c231d08357b0fc53dc2c103e89c170c00df6644d635ea0776cdb2b780ecc027e183bf9b6c

memory/2044-10-0x0000000000400000-0x00000000004BD000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-1EK5P.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 aacde46abe13e8b9e06afb3f813d922f
SHA1 fdb421f8110f7d5f25264e27650c771a7bd1b90d
SHA256 d276699123f0b8c5f409e93f19300137ced44dd3f4c5c3d8f617cc7260686c6e
SHA512 16e64b221a32a282f55738827c73962b5db1d685c88551aee689b71c65044d450024961246c4be03e05e20acb4f837b62f47e7dc40c1bd9a6f1672e9d32dcbbb

memory/344-52-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/344-53-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/344-57-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/344-55-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/4104-60-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/4908-61-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2044-62-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/4104-63-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/4104-66-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/4104-69-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/4104-72-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/4104-75-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/4104-78-0x0000000000B20000-0x0000000000BC2000-memory.dmp

memory/4104-82-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/4104-85-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/4104-88-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/4104-91-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/4104-94-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/4104-97-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/4104-100-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/4104-102-0x0000000000B20000-0x0000000000BC2000-memory.dmp

memory/4104-101-0x0000000000B20000-0x0000000000BC2000-memory.dmp

memory/4104-106-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/4104-109-0x0000000000400000-0x00000000007E0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-11 06:43

Reported

2024-08-11 06:46

Platform

win11-20240802-en

Max time kernel

142s

Max time network

130s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.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\Temp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\is-3D9MK.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.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-3D9MK.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4324 wrote to memory of 2620 N/A C:\Users\Admin\AppData\Local\Temp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.exe C:\Users\Admin\AppData\Local\Temp\is-3D9MK.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp
PID 4324 wrote to memory of 2620 N/A C:\Users\Admin\AppData\Local\Temp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.exe C:\Users\Admin\AppData\Local\Temp\is-3D9MK.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp
PID 4324 wrote to memory of 2620 N/A C:\Users\Admin\AppData\Local\Temp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.exe C:\Users\Admin\AppData\Local\Temp\is-3D9MK.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp
PID 2620 wrote to memory of 4988 N/A C:\Users\Admin\AppData\Local\Temp\is-3D9MK.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 2620 wrote to memory of 4988 N/A C:\Users\Admin\AppData\Local\Temp\is-3D9MK.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 2620 wrote to memory of 4988 N/A C:\Users\Admin\AppData\Local\Temp\is-3D9MK.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 2620 wrote to memory of 252 N/A C:\Users\Admin\AppData\Local\Temp\is-3D9MK.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 2620 wrote to memory of 252 N/A C:\Users\Admin\AppData\Local\Temp\is-3D9MK.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 2620 wrote to memory of 252 N/A C:\Users\Admin\AppData\Local\Temp\is-3D9MK.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe

Processes

C:\Users\Admin\AppData\Local\Temp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.exe

"C:\Users\Admin\AppData\Local\Temp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.exe"

C:\Users\Admin\AppData\Local\Temp\is-3D9MK.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp

"C:\Users\Admin\AppData\Local\Temp\is-3D9MK.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp" /SL5="$50100,3561838,54272,C:\Users\Admin\AppData\Local\Temp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.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 8.8.8.8.in-addr.arpa udp
LT 91.211.247.248:53 dlrgcgh.info udp
CH 185.196.8.214:80 dlrgcgh.info tcp
NL 45.156.23.96:2023 tcp
US 8.8.8.8:53 214.8.196.185.in-addr.arpa udp

Files

memory/4324-1-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4324-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-3D9MK.tmp\0335bf11ab02e3b7da19c2fd21fe4bc9603f3b908614dc99c816867ff00c0400.tmp

MD5 d541b0e8d95d631badc9ff20ed59afdd
SHA1 617063202f52daa60cb4a04f505418b2e4778d18
SHA256 9450c883637e2515bfd934548aa48e6be252bf2ec7527e60f21ff3cb6a40afad
SHA512 edeaf7d0c0d6ec805f446f87684b18b5d9fbbd25af506824127e781c231d08357b0fc53dc2c103e89c170c00df6644d635ea0776cdb2b780ecc027e183bf9b6c

memory/2620-8-0x0000000000400000-0x00000000004BD000-memory.dmp

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

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 aacde46abe13e8b9e06afb3f813d922f
SHA1 fdb421f8110f7d5f25264e27650c771a7bd1b90d
SHA256 d276699123f0b8c5f409e93f19300137ced44dd3f4c5c3d8f617cc7260686c6e
SHA512 16e64b221a32a282f55738827c73962b5db1d685c88551aee689b71c65044d450024961246c4be03e05e20acb4f837b62f47e7dc40c1bd9a6f1672e9d32dcbbb

memory/4988-52-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/4988-53-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/4988-56-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/252-59-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/4324-60-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2620-61-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/252-62-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/252-65-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/252-68-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/252-71-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/252-74-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/252-77-0x00000000025F0000-0x0000000002692000-memory.dmp

memory/252-80-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/252-85-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/252-88-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/252-91-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/252-94-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/252-97-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/252-100-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/252-101-0x00000000025F0000-0x0000000002692000-memory.dmp

memory/252-102-0x00000000025F0000-0x0000000002692000-memory.dmp

memory/252-106-0x0000000000400000-0x00000000007E0000-memory.dmp

memory/252-109-0x0000000000400000-0x00000000007E0000-memory.dmp