Malware Analysis Report

2025-08-05 23:58

Sample ID 240324-tens1sgc9t
Target d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e
SHA256 d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e
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

d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e

Threat Level: Known bad

The file d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Detect Socks5Systemz Payload

Socks5Systemz

Executes dropped EXE

Loads dropped DLL

Unexpected DNS network traffic destination

Checks installed software on the system

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-24 15:58

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-24 15:58

Reported

2024-03-24 16:00

Platform

win10v2004-20240226-en

Max time kernel

150s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.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

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2400 wrote to memory of 3392 N/A C:\Users\Admin\AppData\Local\Temp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.exe C:\Users\Admin\AppData\Local\Temp\is-P28PV.tmp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.tmp
PID 2400 wrote to memory of 3392 N/A C:\Users\Admin\AppData\Local\Temp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.exe C:\Users\Admin\AppData\Local\Temp\is-P28PV.tmp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.tmp
PID 2400 wrote to memory of 3392 N/A C:\Users\Admin\AppData\Local\Temp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.exe C:\Users\Admin\AppData\Local\Temp\is-P28PV.tmp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.tmp
PID 3392 wrote to memory of 3620 N/A C:\Users\Admin\AppData\Local\Temp\is-P28PV.tmp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 3392 wrote to memory of 3620 N/A C:\Users\Admin\AppData\Local\Temp\is-P28PV.tmp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 3392 wrote to memory of 3620 N/A C:\Users\Admin\AppData\Local\Temp\is-P28PV.tmp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 3392 wrote to memory of 4536 N/A C:\Users\Admin\AppData\Local\Temp\is-P28PV.tmp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 3392 wrote to memory of 4536 N/A C:\Users\Admin\AppData\Local\Temp\is-P28PV.tmp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 3392 wrote to memory of 4536 N/A C:\Users\Admin\AppData\Local\Temp\is-P28PV.tmp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe

Processes

C:\Users\Admin\AppData\Local\Temp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.exe

"C:\Users\Admin\AppData\Local\Temp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.exe"

C:\Users\Admin\AppData\Local\Temp\is-P28PV.tmp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.tmp

"C:\Users\Admin\AppData\Local\Temp\is-P28PV.tmp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.tmp" /SL5="$5006C,1764583,54272,C:\Users\Admin\AppData\Local\Temp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.exe"

C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe

"C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe" -i

C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe

"C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe" -s

Network

Country Destination Domain Proto
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 8.8.8.8:53 82.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 56.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 17.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 44.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 67.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 80.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 64.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
LT 91.211.247.248:53 buruggc.com udp
MD 45.142.214.240:80 buruggc.com tcp
US 8.8.8.8:53 248.247.211.91.in-addr.arpa udp
US 8.8.8.8:53 240.214.142.45.in-addr.arpa udp

Files

memory/2400-0-0x0000000000400000-0x0000000000414000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-P28PV.tmp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.tmp

MD5 5a1e3d46cb5a24f8e50b2a59d2ba1cf3
SHA1 fe86894c4757c144449bc744649b7fb9e03346f1
SHA256 d3a2c2ce7d70b3b9c30faf3f72bf4ebcdea8f331d6b6cac5dae906327997985d
SHA512 a27dc5c443abb31826b14e514aa717be5bf0f548b82170f79705f45ca28abaedc485c5b8738044735f61eca9e1f0ca659b519a3947551404085d07202ae709af

memory/2400-2-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3392-7-0x0000000002210000-0x0000000002211000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-MN59E.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe

MD5 1e417394236de4c786e9286a9de071bd
SHA1 a58188b5dd42e3e31e98be1eac5338f845d88f20
SHA256 83d854c33193232eda4a8f8c06a9b304a57597abecdf07b72153bf1cc7dc9bef
SHA512 598160bee4ca7cbe0e50087ca4a7154bf3d852f2de8faccca927c0cf87a5f87bb68d4bcc99cc96fa5da2c5f2397a6ae9b19e3e5386d872e92af6e99cb640c48c

memory/3620-38-0x0000000000400000-0x000000000060E000-memory.dmp

memory/3620-39-0x0000000000400000-0x000000000060E000-memory.dmp

memory/3620-42-0x0000000000400000-0x000000000060E000-memory.dmp

memory/3620-43-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4536-46-0x0000000000400000-0x000000000060E000-memory.dmp

memory/2400-47-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3392-48-0x0000000000400000-0x00000000004B8000-memory.dmp

memory/4536-49-0x0000000000400000-0x000000000060E000-memory.dmp

memory/3392-50-0x0000000002210000-0x0000000002211000-memory.dmp

memory/4536-53-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4536-54-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4536-57-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4536-60-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4536-63-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4536-64-0x00000000007F0000-0x0000000000892000-memory.dmp

memory/4536-68-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4536-69-0x00000000007F0000-0x0000000000892000-memory.dmp

memory/4536-74-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4536-77-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4536-78-0x00000000007F0000-0x0000000000892000-memory.dmp

memory/4536-81-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4536-84-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4536-87-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4536-90-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4536-94-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4536-97-0x0000000000400000-0x000000000060E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-24 15:58

Reported

2024-03-24 16:00

Platform

win11-20240221-en

Max time kernel

146s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.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

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4280 wrote to memory of 1052 N/A C:\Users\Admin\AppData\Local\Temp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.exe C:\Users\Admin\AppData\Local\Temp\is-4S4SO.tmp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.tmp
PID 4280 wrote to memory of 1052 N/A C:\Users\Admin\AppData\Local\Temp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.exe C:\Users\Admin\AppData\Local\Temp\is-4S4SO.tmp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.tmp
PID 4280 wrote to memory of 1052 N/A C:\Users\Admin\AppData\Local\Temp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.exe C:\Users\Admin\AppData\Local\Temp\is-4S4SO.tmp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.tmp
PID 1052 wrote to memory of 4576 N/A C:\Users\Admin\AppData\Local\Temp\is-4S4SO.tmp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 1052 wrote to memory of 4576 N/A C:\Users\Admin\AppData\Local\Temp\is-4S4SO.tmp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 1052 wrote to memory of 4576 N/A C:\Users\Admin\AppData\Local\Temp\is-4S4SO.tmp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 1052 wrote to memory of 4912 N/A C:\Users\Admin\AppData\Local\Temp\is-4S4SO.tmp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 1052 wrote to memory of 4912 N/A C:\Users\Admin\AppData\Local\Temp\is-4S4SO.tmp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 1052 wrote to memory of 4912 N/A C:\Users\Admin\AppData\Local\Temp\is-4S4SO.tmp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe

Processes

C:\Users\Admin\AppData\Local\Temp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.exe

"C:\Users\Admin\AppData\Local\Temp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.exe"

C:\Users\Admin\AppData\Local\Temp\is-4S4SO.tmp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.tmp

"C:\Users\Admin\AppData\Local\Temp\is-4S4SO.tmp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.tmp" /SL5="$60234,1764583,54272,C:\Users\Admin\AppData\Local\Temp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.exe"

C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe

"C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe" -i

C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe

"C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe" -s

Network

Country Destination Domain Proto
RU 152.89.198.214:53 aifubhe.ru udp
MD 45.142.214.240:80 aifubhe.ru tcp
US 8.8.8.8:53 240.214.142.45.in-addr.arpa udp

Files

memory/4280-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4280-2-0x0000000000400000-0x0000000000414000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-4S4SO.tmp\d9a7370921b5ed2e87a080854cf2ca8e6d30cfe27cdc1bb8f6eece855f5e812e.tmp

MD5 5a1e3d46cb5a24f8e50b2a59d2ba1cf3
SHA1 fe86894c4757c144449bc744649b7fb9e03346f1
SHA256 d3a2c2ce7d70b3b9c30faf3f72bf4ebcdea8f331d6b6cac5dae906327997985d
SHA512 a27dc5c443abb31826b14e514aa717be5bf0f548b82170f79705f45ca28abaedc485c5b8738044735f61eca9e1f0ca659b519a3947551404085d07202ae709af

memory/1052-7-0x0000000002300000-0x0000000002301000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-HN9G0.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe

MD5 194f6aae7f1a7d6128740d6ab6ede9e6
SHA1 b4eb16213efd1cf14266fa8f47f8537a4c7bf714
SHA256 443683ca4533dd57b7bd903d7811cd98f9aa5b5b8e57e49246c680bf67d76413
SHA512 3fed8311891b6fe512a676af869d9ba9f10325357273bcef0f839e61a0c320d4bceea37fa9a6836eff50a9d1d990a50467a198077f038ce70bd62e22aa165a11

memory/4576-38-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4576-39-0x0000000000400000-0x000000000060E000-memory.dmp

C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe

MD5 1e417394236de4c786e9286a9de071bd
SHA1 a58188b5dd42e3e31e98be1eac5338f845d88f20
SHA256 83d854c33193232eda4a8f8c06a9b304a57597abecdf07b72153bf1cc7dc9bef
SHA512 598160bee4ca7cbe0e50087ca4a7154bf3d852f2de8faccca927c0cf87a5f87bb68d4bcc99cc96fa5da2c5f2397a6ae9b19e3e5386d872e92af6e99cb640c48c

memory/4576-43-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4576-42-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4912-45-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4912-47-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4280-48-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1052-49-0x0000000000400000-0x00000000004B8000-memory.dmp

memory/4912-50-0x0000000000400000-0x000000000060E000-memory.dmp

memory/1052-51-0x0000000002300000-0x0000000002301000-memory.dmp

memory/4576-54-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4912-55-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4912-56-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4912-59-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4912-62-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4912-65-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4912-68-0x0000000002380000-0x0000000002422000-memory.dmp

memory/4912-71-0x0000000002380000-0x0000000002422000-memory.dmp

memory/4912-69-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4912-76-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4912-79-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4912-80-0x0000000002380000-0x0000000002422000-memory.dmp

memory/4912-83-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4912-86-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4912-89-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4912-92-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4912-96-0x0000000000400000-0x000000000060E000-memory.dmp

memory/4912-99-0x0000000000400000-0x000000000060E000-memory.dmp