Malware Analysis Report

2025-08-05 23:58

Sample ID 240324-wp71rahc7t
Target 420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa
SHA256 420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa
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

420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa

Threat Level: Known bad

The file 420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa 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 18:06

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-24 18:06

Reported

2024-03-24 18:09

Platform

win10v2004-20240226-en

Max time kernel

150s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.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
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 1028 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.exe C:\Users\Admin\AppData\Local\Temp\is-11NP4.tmp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp
PID 1028 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.exe C:\Users\Admin\AppData\Local\Temp\is-11NP4.tmp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp
PID 1028 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.exe C:\Users\Admin\AppData\Local\Temp\is-11NP4.tmp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp
PID 2808 wrote to memory of 452 N/A C:\Users\Admin\AppData\Local\Temp\is-11NP4.tmp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 2808 wrote to memory of 452 N/A C:\Users\Admin\AppData\Local\Temp\is-11NP4.tmp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 2808 wrote to memory of 452 N/A C:\Users\Admin\AppData\Local\Temp\is-11NP4.tmp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 2808 wrote to memory of 1436 N/A C:\Users\Admin\AppData\Local\Temp\is-11NP4.tmp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 2808 wrote to memory of 1436 N/A C:\Users\Admin\AppData\Local\Temp\is-11NP4.tmp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 2808 wrote to memory of 1436 N/A C:\Users\Admin\AppData\Local\Temp\is-11NP4.tmp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe

Processes

C:\Users\Admin\AppData\Local\Temp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.exe

"C:\Users\Admin\AppData\Local\Temp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.exe"

C:\Users\Admin\AppData\Local\Temp\is-11NP4.tmp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp

"C:\Users\Admin\AppData\Local\Temp\is-11NP4.tmp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp" /SL5="$12004C,1922762,54272,C:\Users\Admin\AppData\Local\Temp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.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 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 100.5.17.2.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 37.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 32.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 5.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 75.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 32.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.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
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
RU 152.89.198.214:53 ejqgktz.ua udp
MD 45.142.214.240:80 ejqgktz.ua tcp
BG 88.80.148.19:2023 tcp
US 8.8.8.8:53 214.198.89.152.in-addr.arpa udp
US 8.8.8.8:53 240.214.142.45.in-addr.arpa udp
US 8.8.8.8:53 19.148.80.88.in-addr.arpa udp

Files

memory/1028-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1028-2-0x0000000000400000-0x0000000000414000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-11NP4.tmp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp

MD5 5a1e3d46cb5a24f8e50b2a59d2ba1cf3
SHA1 fe86894c4757c144449bc744649b7fb9e03346f1
SHA256 d3a2c2ce7d70b3b9c30faf3f72bf4ebcdea8f331d6b6cac5dae906327997985d
SHA512 a27dc5c443abb31826b14e514aa717be5bf0f548b82170f79705f45ca28abaedc485c5b8738044735f61eca9e1f0ca659b519a3947551404085d07202ae709af

memory/2808-7-0x0000000002240000-0x0000000002241000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-DOK4B.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 56f29e096c37c2f0ff17b240d9cd4ea5
SHA1 bc7135675d0d7062153a301496b0e56e99d704dd
SHA256 afe43fe927976a2f9cda295af17b504fa33a55278e8b8b191d1f38a8f5b74d40
SHA512 012e0c525e1c3d4c2673fe86b7cb5d0261b3fcd60c09119879d39566307c7905b8ecd727836fca33f8886bd2b4bac315a7fad06565fe12426ba657beb88b17d6

memory/452-38-0x0000000000400000-0x000000000062C000-memory.dmp

memory/452-39-0x0000000000400000-0x000000000062C000-memory.dmp

memory/452-42-0x0000000000400000-0x000000000062C000-memory.dmp

memory/452-43-0x0000000000400000-0x000000000062C000-memory.dmp

memory/1436-46-0x0000000000400000-0x000000000062C000-memory.dmp

memory/1436-47-0x0000000000400000-0x000000000062C000-memory.dmp

memory/1028-48-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2808-49-0x0000000000400000-0x00000000004B8000-memory.dmp

memory/1436-50-0x0000000000400000-0x000000000062C000-memory.dmp

memory/2808-51-0x0000000002240000-0x0000000002241000-memory.dmp

memory/1436-54-0x0000000000400000-0x000000000062C000-memory.dmp

memory/1436-57-0x0000000000400000-0x000000000062C000-memory.dmp

memory/1436-60-0x0000000000400000-0x000000000062C000-memory.dmp

memory/1436-63-0x0000000000400000-0x000000000062C000-memory.dmp

memory/1436-64-0x00000000007E0000-0x0000000000882000-memory.dmp

memory/1436-68-0x0000000000400000-0x000000000062C000-memory.dmp

memory/1436-69-0x00000000007E0000-0x0000000000882000-memory.dmp

memory/1436-74-0x0000000000400000-0x000000000062C000-memory.dmp

memory/1436-77-0x0000000000400000-0x000000000062C000-memory.dmp

memory/1436-78-0x00000000007E0000-0x0000000000882000-memory.dmp

memory/1436-81-0x0000000000400000-0x000000000062C000-memory.dmp

memory/1436-84-0x0000000000400000-0x000000000062C000-memory.dmp

memory/1436-87-0x0000000000400000-0x000000000062C000-memory.dmp

memory/1436-90-0x0000000000400000-0x000000000062C000-memory.dmp

memory/1436-91-0x00000000007E0000-0x0000000000882000-memory.dmp

memory/1436-92-0x00000000007E0000-0x0000000000882000-memory.dmp

memory/1436-96-0x0000000000400000-0x000000000062C000-memory.dmp

memory/1436-99-0x0000000000400000-0x000000000062C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-24 18:06

Reported

2024-03-24 18:09

Platform

win11-20240221-en

Max time kernel

147s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.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
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 4160 wrote to memory of 744 N/A C:\Users\Admin\AppData\Local\Temp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.exe C:\Users\Admin\AppData\Local\Temp\is-9QDJA.tmp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp
PID 4160 wrote to memory of 744 N/A C:\Users\Admin\AppData\Local\Temp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.exe C:\Users\Admin\AppData\Local\Temp\is-9QDJA.tmp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp
PID 4160 wrote to memory of 744 N/A C:\Users\Admin\AppData\Local\Temp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.exe C:\Users\Admin\AppData\Local\Temp\is-9QDJA.tmp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp
PID 744 wrote to memory of 244 N/A C:\Users\Admin\AppData\Local\Temp\is-9QDJA.tmp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 744 wrote to memory of 244 N/A C:\Users\Admin\AppData\Local\Temp\is-9QDJA.tmp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 744 wrote to memory of 244 N/A C:\Users\Admin\AppData\Local\Temp\is-9QDJA.tmp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 744 wrote to memory of 956 N/A C:\Users\Admin\AppData\Local\Temp\is-9QDJA.tmp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 744 wrote to memory of 956 N/A C:\Users\Admin\AppData\Local\Temp\is-9QDJA.tmp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 744 wrote to memory of 956 N/A C:\Users\Admin\AppData\Local\Temp\is-9QDJA.tmp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe

Processes

C:\Users\Admin\AppData\Local\Temp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.exe

"C:\Users\Admin\AppData\Local\Temp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.exe"

C:\Users\Admin\AppData\Local\Temp\is-9QDJA.tmp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp

"C:\Users\Admin\AppData\Local\Temp\is-9QDJA.tmp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp" /SL5="$60232,1922762,54272,C:\Users\Admin\AppData\Local\Temp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.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
LT 91.211.247.248:53 beibhrj.com udp
MD 45.142.214.240:80 beibhrj.com tcp
NL 193.222.96.219:2023 tcp
US 8.8.8.8:53 219.96.222.193.in-addr.arpa udp

Files

memory/4160-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4160-2-0x0000000000400000-0x0000000000414000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-9QDJA.tmp\420c1cc9cd89512c5a3fe4951044a9a2dc6ec158132924097fe96eba32b2f0fa.tmp

MD5 5a1e3d46cb5a24f8e50b2a59d2ba1cf3
SHA1 fe86894c4757c144449bc744649b7fb9e03346f1
SHA256 d3a2c2ce7d70b3b9c30faf3f72bf4ebcdea8f331d6b6cac5dae906327997985d
SHA512 a27dc5c443abb31826b14e514aa717be5bf0f548b82170f79705f45ca28abaedc485c5b8738044735f61eca9e1f0ca659b519a3947551404085d07202ae709af

memory/744-7-0x0000000002440000-0x0000000002441000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-MH9UH.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 56f29e096c37c2f0ff17b240d9cd4ea5
SHA1 bc7135675d0d7062153a301496b0e56e99d704dd
SHA256 afe43fe927976a2f9cda295af17b504fa33a55278e8b8b191d1f38a8f5b74d40
SHA512 012e0c525e1c3d4c2673fe86b7cb5d0261b3fcd60c09119879d39566307c7905b8ecd727836fca33f8886bd2b4bac315a7fad06565fe12426ba657beb88b17d6

memory/244-39-0x0000000000400000-0x000000000062C000-memory.dmp

memory/244-38-0x0000000000400000-0x000000000062C000-memory.dmp

memory/244-42-0x0000000000400000-0x000000000062C000-memory.dmp

memory/244-43-0x0000000000400000-0x000000000062C000-memory.dmp

memory/956-45-0x0000000000400000-0x000000000062C000-memory.dmp

memory/956-47-0x0000000000400000-0x000000000062C000-memory.dmp

memory/4160-48-0x0000000000400000-0x0000000000414000-memory.dmp

memory/744-49-0x0000000000400000-0x00000000004B8000-memory.dmp

memory/956-50-0x0000000000400000-0x000000000062C000-memory.dmp

memory/744-51-0x0000000002440000-0x0000000002441000-memory.dmp

memory/956-53-0x0000000000400000-0x000000000062C000-memory.dmp

memory/956-55-0x0000000000400000-0x000000000062C000-memory.dmp

memory/956-58-0x0000000000400000-0x000000000062C000-memory.dmp

memory/956-61-0x0000000000400000-0x000000000062C000-memory.dmp

memory/956-64-0x0000000000400000-0x000000000062C000-memory.dmp

memory/956-66-0x0000000000890000-0x0000000000932000-memory.dmp

memory/956-69-0x0000000000400000-0x000000000062C000-memory.dmp

memory/956-70-0x0000000000890000-0x0000000000932000-memory.dmp

memory/956-75-0x0000000000400000-0x000000000062C000-memory.dmp

memory/956-78-0x0000000000400000-0x000000000062C000-memory.dmp

memory/956-79-0x0000000000890000-0x0000000000932000-memory.dmp

memory/956-82-0x0000000000400000-0x000000000062C000-memory.dmp

memory/956-85-0x0000000000400000-0x000000000062C000-memory.dmp

memory/956-88-0x0000000000400000-0x000000000062C000-memory.dmp

memory/956-91-0x0000000000400000-0x000000000062C000-memory.dmp

memory/956-92-0x0000000000890000-0x0000000000932000-memory.dmp

memory/956-93-0x0000000000890000-0x0000000000932000-memory.dmp

memory/956-97-0x0000000000400000-0x000000000062C000-memory.dmp

memory/956-100-0x0000000000400000-0x000000000062C000-memory.dmp