Malware Analysis Report

2025-08-05 23:58

Sample ID 240324-vlh2sadg99
Target a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60
SHA256 a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60
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

a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60

Threat Level: Known bad

The file a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60 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

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-24 17:04

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-24 17:04

Reported

2024-03-24 17:07

Platform

win10v2004-20231215-en

Max time kernel

141s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.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

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3972 wrote to memory of 4924 N/A C:\Users\Admin\AppData\Local\Temp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.exe C:\Users\Admin\AppData\Local\Temp\is-RCD9S.tmp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp
PID 3972 wrote to memory of 4924 N/A C:\Users\Admin\AppData\Local\Temp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.exe C:\Users\Admin\AppData\Local\Temp\is-RCD9S.tmp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp
PID 3972 wrote to memory of 4924 N/A C:\Users\Admin\AppData\Local\Temp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.exe C:\Users\Admin\AppData\Local\Temp\is-RCD9S.tmp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp
PID 4924 wrote to memory of 3752 N/A C:\Users\Admin\AppData\Local\Temp\is-RCD9S.tmp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 4924 wrote to memory of 3752 N/A C:\Users\Admin\AppData\Local\Temp\is-RCD9S.tmp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 4924 wrote to memory of 3752 N/A C:\Users\Admin\AppData\Local\Temp\is-RCD9S.tmp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 4924 wrote to memory of 4380 N/A C:\Users\Admin\AppData\Local\Temp\is-RCD9S.tmp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 4924 wrote to memory of 4380 N/A C:\Users\Admin\AppData\Local\Temp\is-RCD9S.tmp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 4924 wrote to memory of 4380 N/A C:\Users\Admin\AppData\Local\Temp\is-RCD9S.tmp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe

Processes

C:\Users\Admin\AppData\Local\Temp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.exe

"C:\Users\Admin\AppData\Local\Temp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.exe"

C:\Users\Admin\AppData\Local\Temp\is-RCD9S.tmp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp

"C:\Users\Admin\AppData\Local\Temp\is-RCD9S.tmp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp" /SL5="$C01C6,1911280,54272,C:\Users\Admin\AppData\Local\Temp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.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 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 210.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 178.223.142.52.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 202.77.24.184.in-addr.arpa udp
SE 45.155.250.90:53 ejnuudk.ua udp
MD 45.142.214.240:80 ejnuudk.ua tcp
US 8.8.8.8:53 90.250.155.45.in-addr.arpa udp
US 8.8.8.8:53 240.214.142.45.in-addr.arpa udp

Files

memory/3972-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3972-2-0x0000000000400000-0x0000000000414000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-RCD9S.tmp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp

MD5 5a1e3d46cb5a24f8e50b2a59d2ba1cf3
SHA1 fe86894c4757c144449bc744649b7fb9e03346f1
SHA256 d3a2c2ce7d70b3b9c30faf3f72bf4ebcdea8f331d6b6cac5dae906327997985d
SHA512 a27dc5c443abb31826b14e514aa717be5bf0f548b82170f79705f45ca28abaedc485c5b8738044735f61eca9e1f0ca659b519a3947551404085d07202ae709af

C:\Users\Admin\AppData\Local\Temp\is-735CR.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

memory/4924-7-0x0000000002340000-0x0000000002341000-memory.dmp

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

MD5 8944a1c523c2483a2ceb72ff50f931ac
SHA1 a74b8c09d2e4cfb10b8aa807a55c0a9c56d5d91b
SHA256 56d7e4a6c7ea0d911c1d6e0613e1df9d5b8fe139bbceb6aae38e880625cd01de
SHA512 d8f828808883ccbc30058bcc07520e335088927a9f8454c0f25aac7ebdca26dfdd2258099e87e3e75979db40beacbb2697e2b3b3e95a9ece0eb367777753a330

memory/3752-38-0x0000000000400000-0x0000000000633000-memory.dmp

memory/3752-39-0x0000000000400000-0x0000000000633000-memory.dmp

memory/3752-42-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4380-45-0x0000000000400000-0x0000000000633000-memory.dmp

memory/3972-46-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4924-47-0x0000000000400000-0x00000000004B8000-memory.dmp

memory/4380-48-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4924-49-0x0000000002340000-0x0000000002341000-memory.dmp

memory/4380-52-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4380-53-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4380-56-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4380-59-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4380-62-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4380-65-0x00000000008F0000-0x0000000000992000-memory.dmp

memory/4380-66-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4380-68-0x00000000008F0000-0x0000000000992000-memory.dmp

memory/4380-73-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4380-76-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4380-77-0x00000000008F0000-0x0000000000992000-memory.dmp

memory/4380-80-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4380-83-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4380-86-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4380-89-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4380-93-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4380-96-0x0000000000400000-0x0000000000633000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-24 17:04

Reported

2024-03-24 17:07

Platform

win11-20240221-en

Max time kernel

141s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.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

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4756 wrote to memory of 3272 N/A C:\Users\Admin\AppData\Local\Temp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.exe C:\Users\Admin\AppData\Local\Temp\is-D69EA.tmp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp
PID 4756 wrote to memory of 3272 N/A C:\Users\Admin\AppData\Local\Temp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.exe C:\Users\Admin\AppData\Local\Temp\is-D69EA.tmp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp
PID 4756 wrote to memory of 3272 N/A C:\Users\Admin\AppData\Local\Temp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.exe C:\Users\Admin\AppData\Local\Temp\is-D69EA.tmp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp
PID 3272 wrote to memory of 3892 N/A C:\Users\Admin\AppData\Local\Temp\is-D69EA.tmp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 3272 wrote to memory of 3892 N/A C:\Users\Admin\AppData\Local\Temp\is-D69EA.tmp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 3272 wrote to memory of 3892 N/A C:\Users\Admin\AppData\Local\Temp\is-D69EA.tmp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 3272 wrote to memory of 4940 N/A C:\Users\Admin\AppData\Local\Temp\is-D69EA.tmp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 3272 wrote to memory of 4940 N/A C:\Users\Admin\AppData\Local\Temp\is-D69EA.tmp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 3272 wrote to memory of 4940 N/A C:\Users\Admin\AppData\Local\Temp\is-D69EA.tmp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe

Processes

C:\Users\Admin\AppData\Local\Temp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.exe

"C:\Users\Admin\AppData\Local\Temp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.exe"

C:\Users\Admin\AppData\Local\Temp\is-D69EA.tmp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp

"C:\Users\Admin\AppData\Local\Temp\is-D69EA.tmp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp" /SL5="$50202,1911280,54272,C:\Users\Admin\AppData\Local\Temp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.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
HK 141.98.234.31:53 bhoowbb.com udp
MD 45.142.214.240:80 bhoowbb.com tcp
US 8.8.8.8:53 31.234.98.141.in-addr.arpa udp
US 8.8.8.8:53 240.214.142.45.in-addr.arpa udp

Files

memory/4756-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4756-2-0x0000000000400000-0x0000000000414000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-D69EA.tmp\a969a7ae7d0b7b23658a7fd04dea91066c550cfc6ead857543dd48c4ca17ff60.tmp

MD5 5a1e3d46cb5a24f8e50b2a59d2ba1cf3
SHA1 fe86894c4757c144449bc744649b7fb9e03346f1
SHA256 d3a2c2ce7d70b3b9c30faf3f72bf4ebcdea8f331d6b6cac5dae906327997985d
SHA512 a27dc5c443abb31826b14e514aa717be5bf0f548b82170f79705f45ca28abaedc485c5b8738044735f61eca9e1f0ca659b519a3947551404085d07202ae709af

memory/3272-7-0x00000000007A0000-0x00000000007A1000-memory.dmp

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

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 8944a1c523c2483a2ceb72ff50f931ac
SHA1 a74b8c09d2e4cfb10b8aa807a55c0a9c56d5d91b
SHA256 56d7e4a6c7ea0d911c1d6e0613e1df9d5b8fe139bbceb6aae38e880625cd01de
SHA512 d8f828808883ccbc30058bcc07520e335088927a9f8454c0f25aac7ebdca26dfdd2258099e87e3e75979db40beacbb2697e2b3b3e95a9ece0eb367777753a330

memory/3892-38-0x0000000000400000-0x0000000000633000-memory.dmp

memory/3892-39-0x0000000000400000-0x0000000000633000-memory.dmp

memory/3892-42-0x0000000000400000-0x0000000000633000-memory.dmp

memory/3892-43-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4940-46-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4756-47-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3272-48-0x0000000000400000-0x00000000004B8000-memory.dmp

memory/4940-49-0x0000000000400000-0x0000000000633000-memory.dmp

memory/3272-50-0x00000000007A0000-0x00000000007A1000-memory.dmp

memory/4940-53-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4940-54-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4940-57-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4940-60-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4940-63-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4940-64-0x0000000002380000-0x0000000002422000-memory.dmp

memory/4940-68-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4940-69-0x0000000002380000-0x0000000002422000-memory.dmp

memory/4940-74-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4940-77-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4940-78-0x0000000002380000-0x0000000002422000-memory.dmp

memory/4940-81-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4940-84-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4940-87-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4940-90-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4940-94-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4940-97-0x0000000000400000-0x0000000000633000-memory.dmp