Malware Analysis Report

2025-08-06 01:29

Sample ID 240811-f6g8na1cnb
Target dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662
SHA256 dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662
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

dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662

Threat Level: Known bad

The file dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662 was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Socks5Systemz

Detect Socks5Systemz Payload

Executes dropped EXE

Loads dropped DLL

Unexpected DNS network traffic destination

Checks installed software on the system

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-11 05:28

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-11 05:28

Reported

2024-08-11 05:31

Platform

win10v2004-20240802-en

Max time kernel

147s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.exe"

Signatures

Detect Socks5Systemz Payload

Description Indicator Process Target
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\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\is-LFKTU.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.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-LFKTU.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4836 wrote to memory of 4816 N/A C:\Users\Admin\AppData\Local\Temp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.exe C:\Users\Admin\AppData\Local\Temp\is-LFKTU.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp
PID 4836 wrote to memory of 4816 N/A C:\Users\Admin\AppData\Local\Temp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.exe C:\Users\Admin\AppData\Local\Temp\is-LFKTU.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp
PID 4836 wrote to memory of 4816 N/A C:\Users\Admin\AppData\Local\Temp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.exe C:\Users\Admin\AppData\Local\Temp\is-LFKTU.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp
PID 4816 wrote to memory of 320 N/A C:\Users\Admin\AppData\Local\Temp\is-LFKTU.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 4816 wrote to memory of 320 N/A C:\Users\Admin\AppData\Local\Temp\is-LFKTU.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 4816 wrote to memory of 320 N/A C:\Users\Admin\AppData\Local\Temp\is-LFKTU.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 4816 wrote to memory of 3656 N/A C:\Users\Admin\AppData\Local\Temp\is-LFKTU.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 4816 wrote to memory of 3656 N/A C:\Users\Admin\AppData\Local\Temp\is-LFKTU.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 4816 wrote to memory of 3656 N/A C:\Users\Admin\AppData\Local\Temp\is-LFKTU.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe

Processes

C:\Users\Admin\AppData\Local\Temp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.exe

"C:\Users\Admin\AppData\Local\Temp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.exe"

C:\Users\Admin\AppData\Local\Temp\is-LFKTU.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp

"C:\Users\Admin\AppData\Local\Temp\is-LFKTU.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp" /SL5="$50228,3721583,54272,C:\Users\Admin\AppData\Local\Temp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.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 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.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
RU 152.89.198.214:53 aqqiipp.ru udp
CH 185.196.8.214:80 aqqiipp.ru tcp
US 8.8.8.8:53 214.198.89.152.in-addr.arpa udp
US 8.8.8.8:53 214.8.196.185.in-addr.arpa udp
CH 185.196.8.214:80 aqqiipp.ru tcp

Files

memory/4836-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4836-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-LFKTU.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp

MD5 5e86b0ec372d2fc1fd230de780e7e967
SHA1 b4f60e0014da39c3e7a443deaaaf086aa01f7139
SHA256 e8cdcf3e17f27f736c3a131ea7510764087d28909effa27f03de54746452956f
SHA512 759f5874ac78a3d630350bbf22a1393cfe41d0914d43452292bce139b6063c045f0f7582aefa197c8c9e37f1bf4e3dd84ce5f5b792bdbabd5e62c419d1b4541d

memory/4816-12-0x0000000000400000-0x00000000004BD000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-1AL8U.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 0f8756b14690ceb6a9f3095dbef3d703
SHA1 6b58c27a523847790b1431602504d02fb0fc3db7
SHA256 a7d66fb58147e7b2ce5287e9ce2ba71e9fdbaaa003bf5cc697a8a01109dd43bc
SHA512 c416605b87727c36b67f9883be89e6a51153c20a5fa7003392291de47eab2111928970f6ffbf72f182607b17d919fa016d7dfcb8fb0bf850c603338b233b176c

memory/320-51-0x0000000000400000-0x0000000000812000-memory.dmp

memory/320-53-0x0000000000400000-0x0000000000812000-memory.dmp

memory/320-55-0x0000000000400000-0x0000000000812000-memory.dmp

memory/320-56-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3656-59-0x0000000000400000-0x0000000000812000-memory.dmp

memory/4836-60-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4816-61-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/3656-62-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3656-65-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3656-68-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3656-71-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3656-74-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3656-77-0x0000000000AE0000-0x0000000000B82000-memory.dmp

memory/3656-81-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3656-84-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3656-87-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3656-90-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3656-93-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3656-96-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3656-99-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3656-102-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3656-105-0x0000000000400000-0x0000000000812000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-11 05:28

Reported

2024-08-11 05:31

Platform

win11-20240802-en

Max time kernel

145s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.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\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\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\is-VO5PO.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-VO5PO.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1648 wrote to memory of 4784 N/A C:\Users\Admin\AppData\Local\Temp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.exe C:\Users\Admin\AppData\Local\Temp\is-VO5PO.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp
PID 1648 wrote to memory of 4784 N/A C:\Users\Admin\AppData\Local\Temp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.exe C:\Users\Admin\AppData\Local\Temp\is-VO5PO.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp
PID 1648 wrote to memory of 4784 N/A C:\Users\Admin\AppData\Local\Temp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.exe C:\Users\Admin\AppData\Local\Temp\is-VO5PO.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp
PID 4784 wrote to memory of 4048 N/A C:\Users\Admin\AppData\Local\Temp\is-VO5PO.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 4784 wrote to memory of 4048 N/A C:\Users\Admin\AppData\Local\Temp\is-VO5PO.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 4784 wrote to memory of 4048 N/A C:\Users\Admin\AppData\Local\Temp\is-VO5PO.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 4784 wrote to memory of 3208 N/A C:\Users\Admin\AppData\Local\Temp\is-VO5PO.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 4784 wrote to memory of 3208 N/A C:\Users\Admin\AppData\Local\Temp\is-VO5PO.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
PID 4784 wrote to memory of 3208 N/A C:\Users\Admin\AppData\Local\Temp\is-VO5PO.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe

Processes

C:\Users\Admin\AppData\Local\Temp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.exe

"C:\Users\Admin\AppData\Local\Temp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.exe"

C:\Users\Admin\AppData\Local\Temp\is-VO5PO.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp

"C:\Users\Admin\AppData\Local\Temp\is-VO5PO.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp" /SL5="$602DE,3721583,54272,C:\Users\Admin\AppData\Local\Temp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.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
SE 45.155.250.90:53 ervkcwo.ua udp
CH 185.196.8.214:80 ervkcwo.ua tcp
NL 89.105.201.183:2023 tcp

Files

memory/1648-1-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1648-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-VO5PO.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp

MD5 5e86b0ec372d2fc1fd230de780e7e967
SHA1 b4f60e0014da39c3e7a443deaaaf086aa01f7139
SHA256 e8cdcf3e17f27f736c3a131ea7510764087d28909effa27f03de54746452956f
SHA512 759f5874ac78a3d630350bbf22a1393cfe41d0914d43452292bce139b6063c045f0f7582aefa197c8c9e37f1bf4e3dd84ce5f5b792bdbabd5e62c419d1b4541d

memory/4784-8-0x0000000000400000-0x00000000004BD000-memory.dmp

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

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 0f8756b14690ceb6a9f3095dbef3d703
SHA1 6b58c27a523847790b1431602504d02fb0fc3db7
SHA256 a7d66fb58147e7b2ce5287e9ce2ba71e9fdbaaa003bf5cc697a8a01109dd43bc
SHA512 c416605b87727c36b67f9883be89e6a51153c20a5fa7003392291de47eab2111928970f6ffbf72f182607b17d919fa016d7dfcb8fb0bf850c603338b233b176c

memory/4048-52-0x0000000000400000-0x0000000000812000-memory.dmp

memory/4048-53-0x0000000000400000-0x0000000000812000-memory.dmp

memory/4048-56-0x0000000000400000-0x0000000000812000-memory.dmp

memory/4048-55-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3208-59-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3208-60-0x0000000000400000-0x0000000000812000-memory.dmp

memory/1648-61-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4784-62-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/3208-63-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3208-66-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3208-69-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3208-70-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3208-73-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3208-76-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3208-79-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3208-80-0x0000000000A10000-0x0000000000AB2000-memory.dmp

memory/3208-86-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3208-89-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3208-91-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3208-93-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3208-96-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3208-99-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3208-102-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3208-103-0x0000000000A10000-0x0000000000AB2000-memory.dmp

memory/3208-104-0x0000000000A10000-0x0000000000AB2000-memory.dmp

memory/3208-108-0x0000000000400000-0x0000000000812000-memory.dmp

memory/3208-111-0x0000000000400000-0x0000000000812000-memory.dmp