Malware Analysis Report

2025-08-06 01:28

Sample ID 240811-jm1sfaveqc
Target 43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6
SHA256 43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6
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

43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6

Threat Level: Known bad

The file 43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6 was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Detect Socks5Systemz Payload

Socks5Systemz

Executes dropped EXE

Unexpected DNS network traffic destination

Loads dropped DLL

Checks installed software on the system

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-11 07:47

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-11 07:47

Reported

2024-08-11 07:50

Platform

win10v2004-20240802-en

Max time kernel

143s

Max time network

129s

Command Line

"C:\Users\Admin\AppData\Local\Temp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.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\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\is-AV529.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.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-AV529.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1980 wrote to memory of 464 N/A C:\Users\Admin\AppData\Local\Temp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.exe C:\Users\Admin\AppData\Local\Temp\is-AV529.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp
PID 1980 wrote to memory of 464 N/A C:\Users\Admin\AppData\Local\Temp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.exe C:\Users\Admin\AppData\Local\Temp\is-AV529.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp
PID 1980 wrote to memory of 464 N/A C:\Users\Admin\AppData\Local\Temp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.exe C:\Users\Admin\AppData\Local\Temp\is-AV529.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp
PID 464 wrote to memory of 1788 N/A C:\Users\Admin\AppData\Local\Temp\is-AV529.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 464 wrote to memory of 1788 N/A C:\Users\Admin\AppData\Local\Temp\is-AV529.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 464 wrote to memory of 1788 N/A C:\Users\Admin\AppData\Local\Temp\is-AV529.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 464 wrote to memory of 2072 N/A C:\Users\Admin\AppData\Local\Temp\is-AV529.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 464 wrote to memory of 2072 N/A C:\Users\Admin\AppData\Local\Temp\is-AV529.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 464 wrote to memory of 2072 N/A C:\Users\Admin\AppData\Local\Temp\is-AV529.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe

Processes

C:\Users\Admin\AppData\Local\Temp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.exe

"C:\Users\Admin\AppData\Local\Temp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.exe"

C:\Users\Admin\AppData\Local\Temp\is-AV529.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp

"C:\Users\Admin\AppData\Local\Temp\is-AV529.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp" /SL5="$502D8,3688551,54272,C:\Users\Admin\AppData\Local\Temp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.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 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.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 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.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 10.28.171.150.in-addr.arpa udp
LT 91.211.247.248:53 csngsbe.net udp
CH 185.196.8.214:80 csngsbe.net tcp
US 8.8.8.8:53 248.247.211.91.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/1980-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1980-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-AV529.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp

MD5 d541b0e8d95d631badc9ff20ed59afdd
SHA1 617063202f52daa60cb4a04f505418b2e4778d18
SHA256 9450c883637e2515bfd934548aa48e6be252bf2ec7527e60f21ff3cb6a40afad
SHA512 edeaf7d0c0d6ec805f446f87684b18b5d9fbbd25af506824127e781c231d08357b0fc53dc2c103e89c170c00df6644d635ea0776cdb2b780ecc027e183bf9b6c

memory/464-10-0x0000000000400000-0x00000000004BD000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-MQ5D8.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 879a058be0a9b7eabc6290d98a77bcd2
SHA1 7add03cae46b73ef654ec5bc501e1591789a7e3a
SHA256 a6b90b2aa04db7e64af64827a52c250f18c11c87d0e494bacf236109f2cb1d05
SHA512 8bf91c1490423ff838ba9e3754e7d760d96f15432edff0f1cf97734e1cbd68f0e5134586b351da3f8b40f00f4b6d1387eadbc7f24e2872a5f2b2caa24db67e8a

memory/1788-52-0x0000000000400000-0x0000000000808000-memory.dmp

memory/1788-55-0x0000000000400000-0x0000000000808000-memory.dmp

memory/1788-53-0x0000000000400000-0x0000000000808000-memory.dmp

memory/1788-57-0x0000000000400000-0x0000000000808000-memory.dmp

memory/2072-60-0x0000000000400000-0x0000000000808000-memory.dmp

memory/1980-61-0x0000000000400000-0x0000000000414000-memory.dmp

memory/464-62-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/2072-63-0x0000000000400000-0x0000000000808000-memory.dmp

memory/2072-66-0x0000000000400000-0x0000000000808000-memory.dmp

memory/2072-69-0x0000000000400000-0x0000000000808000-memory.dmp

memory/2072-72-0x0000000000400000-0x0000000000808000-memory.dmp

memory/2072-75-0x0000000000400000-0x0000000000808000-memory.dmp

memory/2072-78-0x0000000000A50000-0x0000000000AF2000-memory.dmp

memory/2072-82-0x0000000000400000-0x0000000000808000-memory.dmp

memory/2072-85-0x0000000000400000-0x0000000000808000-memory.dmp

memory/2072-88-0x0000000000400000-0x0000000000808000-memory.dmp

memory/2072-91-0x0000000000400000-0x0000000000808000-memory.dmp

memory/2072-94-0x0000000000400000-0x0000000000808000-memory.dmp

memory/2072-97-0x0000000000400000-0x0000000000808000-memory.dmp

memory/2072-100-0x0000000000400000-0x0000000000808000-memory.dmp

memory/2072-101-0x0000000000A50000-0x0000000000AF2000-memory.dmp

memory/2072-102-0x0000000000A50000-0x0000000000AF2000-memory.dmp

memory/2072-106-0x0000000000400000-0x0000000000808000-memory.dmp

memory/2072-109-0x0000000000400000-0x0000000000808000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-11 07:47

Reported

2024-08-11 07:50

Platform

win11-20240802-en

Max time kernel

146s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.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\is-UCRNG.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.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
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-UCRNG.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3468 wrote to memory of 1204 N/A C:\Users\Admin\AppData\Local\Temp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.exe C:\Users\Admin\AppData\Local\Temp\is-UCRNG.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp
PID 3468 wrote to memory of 1204 N/A C:\Users\Admin\AppData\Local\Temp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.exe C:\Users\Admin\AppData\Local\Temp\is-UCRNG.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp
PID 3468 wrote to memory of 1204 N/A C:\Users\Admin\AppData\Local\Temp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.exe C:\Users\Admin\AppData\Local\Temp\is-UCRNG.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp
PID 1204 wrote to memory of 1576 N/A C:\Users\Admin\AppData\Local\Temp\is-UCRNG.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 1204 wrote to memory of 1576 N/A C:\Users\Admin\AppData\Local\Temp\is-UCRNG.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 1204 wrote to memory of 1576 N/A C:\Users\Admin\AppData\Local\Temp\is-UCRNG.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 1204 wrote to memory of 3140 N/A C:\Users\Admin\AppData\Local\Temp\is-UCRNG.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 1204 wrote to memory of 3140 N/A C:\Users\Admin\AppData\Local\Temp\is-UCRNG.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 1204 wrote to memory of 3140 N/A C:\Users\Admin\AppData\Local\Temp\is-UCRNG.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe

Processes

C:\Users\Admin\AppData\Local\Temp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.exe

"C:\Users\Admin\AppData\Local\Temp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.exe"

C:\Users\Admin\AppData\Local\Temp\is-UCRNG.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp

"C:\Users\Admin\AppData\Local\Temp\is-UCRNG.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp" /SL5="$60108,3688551,54272,C:\Users\Admin\AppData\Local\Temp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.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 52.111.227.13:443 tcp
LT 91.211.247.248:53 beiiepu.com udp
CH 185.196.8.214:80 beiiepu.com tcp
US 8.8.8.8:53 214.8.196.185.in-addr.arpa udp
NL 45.156.23.96:2023 tcp

Files

memory/3468-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3468-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-UCRNG.tmp\43a568e145fb750f80b39845454010845b4ecf56266725ed21ad640ed1ecc7c6.tmp

MD5 d541b0e8d95d631badc9ff20ed59afdd
SHA1 617063202f52daa60cb4a04f505418b2e4778d18
SHA256 9450c883637e2515bfd934548aa48e6be252bf2ec7527e60f21ff3cb6a40afad
SHA512 edeaf7d0c0d6ec805f446f87684b18b5d9fbbd25af506824127e781c231d08357b0fc53dc2c103e89c170c00df6644d635ea0776cdb2b780ecc027e183bf9b6c

memory/1204-13-0x0000000000400000-0x00000000004BD000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-S1O6U.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 879a058be0a9b7eabc6290d98a77bcd2
SHA1 7add03cae46b73ef654ec5bc501e1591789a7e3a
SHA256 a6b90b2aa04db7e64af64827a52c250f18c11c87d0e494bacf236109f2cb1d05
SHA512 8bf91c1490423ff838ba9e3754e7d760d96f15432edff0f1cf97734e1cbd68f0e5134586b351da3f8b40f00f4b6d1387eadbc7f24e2872a5f2b2caa24db67e8a

memory/1576-52-0x0000000000400000-0x0000000000808000-memory.dmp

memory/1576-57-0x0000000000400000-0x0000000000808000-memory.dmp

memory/1576-56-0x0000000000400000-0x000000000047F000-memory.dmp

memory/1576-54-0x0000000000400000-0x0000000000808000-memory.dmp

memory/3140-60-0x0000000000400000-0x0000000000808000-memory.dmp

memory/3468-61-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1204-62-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/3140-63-0x0000000000400000-0x0000000000808000-memory.dmp

memory/3140-66-0x0000000000400000-0x0000000000808000-memory.dmp

memory/3140-69-0x0000000000400000-0x0000000000808000-memory.dmp

memory/3140-72-0x0000000000400000-0x0000000000808000-memory.dmp

memory/3140-75-0x0000000000400000-0x0000000000808000-memory.dmp

memory/3140-78-0x0000000002680000-0x0000000002722000-memory.dmp

memory/3140-80-0x0000000000400000-0x0000000000808000-memory.dmp

memory/3140-85-0x0000000000400000-0x0000000000808000-memory.dmp

memory/3140-88-0x0000000000400000-0x0000000000808000-memory.dmp

memory/3140-91-0x0000000000400000-0x0000000000808000-memory.dmp

memory/3140-94-0x0000000000400000-0x0000000000808000-memory.dmp

memory/3140-97-0x0000000000400000-0x0000000000808000-memory.dmp

memory/3140-100-0x0000000000400000-0x0000000000808000-memory.dmp

memory/3140-101-0x0000000002680000-0x0000000002722000-memory.dmp

memory/3140-102-0x0000000002680000-0x0000000002722000-memory.dmp

memory/3140-106-0x0000000000400000-0x0000000000808000-memory.dmp

memory/3140-109-0x0000000000400000-0x0000000000808000-memory.dmp