Malware Analysis Report

2025-08-05 23:58

Sample ID 240324-r9bqtsdd34
Target c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f
SHA256 c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f
Tags
socks5systemz botnet discovery
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f

Threat Level: Known bad

The file c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f 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

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-24 14:53

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-24 14:53

Reported

2024-03-24 14:55

Platform

win11-20240221-en

Max time kernel

150s

Max time network

161s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.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

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 1800 wrote to memory of 4020 N/A C:\Users\Admin\AppData\Local\Temp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.exe C:\Users\Admin\AppData\Local\Temp\is-1NC01.tmp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp
PID 1800 wrote to memory of 4020 N/A C:\Users\Admin\AppData\Local\Temp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.exe C:\Users\Admin\AppData\Local\Temp\is-1NC01.tmp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp
PID 1800 wrote to memory of 4020 N/A C:\Users\Admin\AppData\Local\Temp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.exe C:\Users\Admin\AppData\Local\Temp\is-1NC01.tmp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp
PID 4020 wrote to memory of 3460 N/A C:\Users\Admin\AppData\Local\Temp\is-1NC01.tmp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 4020 wrote to memory of 3460 N/A C:\Users\Admin\AppData\Local\Temp\is-1NC01.tmp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 4020 wrote to memory of 3460 N/A C:\Users\Admin\AppData\Local\Temp\is-1NC01.tmp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 4020 wrote to memory of 4928 N/A C:\Users\Admin\AppData\Local\Temp\is-1NC01.tmp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 4020 wrote to memory of 4928 N/A C:\Users\Admin\AppData\Local\Temp\is-1NC01.tmp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 4020 wrote to memory of 4928 N/A C:\Users\Admin\AppData\Local\Temp\is-1NC01.tmp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe

Processes

C:\Users\Admin\AppData\Local\Temp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.exe

"C:\Users\Admin\AppData\Local\Temp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.exe"

C:\Users\Admin\AppData\Local\Temp\is-1NC01.tmp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp

"C:\Users\Admin\AppData\Local\Temp\is-1NC01.tmp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp" /SL5="$80218,1935887,54272,C:\Users\Admin\AppData\Local\Temp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.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 8.8.8.8.in-addr.arpa udp
HK 141.98.234.31:53 dihdaoe.info udp
MD 45.142.214.240:80 dihdaoe.info tcp

Files

memory/1800-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1800-2-0x0000000000400000-0x0000000000414000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-1NC01.tmp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp

MD5 5a1e3d46cb5a24f8e50b2a59d2ba1cf3
SHA1 fe86894c4757c144449bc744649b7fb9e03346f1
SHA256 d3a2c2ce7d70b3b9c30faf3f72bf4ebcdea8f331d6b6cac5dae906327997985d
SHA512 a27dc5c443abb31826b14e514aa717be5bf0f548b82170f79705f45ca28abaedc485c5b8738044735f61eca9e1f0ca659b519a3947551404085d07202ae709af

memory/4020-7-0x0000000002440000-0x0000000002441000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-B30IE.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 aab53ad82ae610c58d3f84145b5faf33
SHA1 1095d690a94c7a3b8efe3b4d0ae3e081b3f4d8a1
SHA256 357e8d5b68ecd7c862b7128059e1691138590eacada4c925b307e30a1738c867
SHA512 33df4fd877180feb0eea30b96b947a1d6c87c1de80e0ef0e101a06202d9fcc82d5bc9f9496678f268aee3bce18d6cb1acf064fb0aa9eaf641ece396166f12668

memory/3460-38-0x0000000000400000-0x0000000000633000-memory.dmp

memory/3460-39-0x0000000000400000-0x0000000000633000-memory.dmp

memory/3460-43-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4928-46-0x0000000000400000-0x0000000000633000-memory.dmp

memory/1800-47-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4020-48-0x0000000000400000-0x00000000004B8000-memory.dmp

memory/4928-49-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4020-50-0x0000000002440000-0x0000000002441000-memory.dmp

memory/4928-53-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4928-54-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4928-57-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4928-60-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4928-63-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4928-66-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4928-68-0x0000000000870000-0x0000000000912000-memory.dmp

memory/4928-74-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4928-77-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4928-78-0x0000000000870000-0x0000000000912000-memory.dmp

memory/4928-81-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4928-84-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4928-87-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4928-90-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4928-94-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4928-97-0x0000000000400000-0x0000000000633000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-24 14:53

Reported

2024-03-24 14:55

Platform

win10v2004-20240226-en

Max time kernel

147s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.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 4816 wrote to memory of 4960 N/A C:\Users\Admin\AppData\Local\Temp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.exe C:\Users\Admin\AppData\Local\Temp\is-2R4V2.tmp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp
PID 4816 wrote to memory of 4960 N/A C:\Users\Admin\AppData\Local\Temp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.exe C:\Users\Admin\AppData\Local\Temp\is-2R4V2.tmp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp
PID 4816 wrote to memory of 4960 N/A C:\Users\Admin\AppData\Local\Temp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.exe C:\Users\Admin\AppData\Local\Temp\is-2R4V2.tmp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp
PID 4960 wrote to memory of 1324 N/A C:\Users\Admin\AppData\Local\Temp\is-2R4V2.tmp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 4960 wrote to memory of 1324 N/A C:\Users\Admin\AppData\Local\Temp\is-2R4V2.tmp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 4960 wrote to memory of 1324 N/A C:\Users\Admin\AppData\Local\Temp\is-2R4V2.tmp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 4960 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\is-2R4V2.tmp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 4960 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\is-2R4V2.tmp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
PID 4960 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\is-2R4V2.tmp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe

Processes

C:\Users\Admin\AppData\Local\Temp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.exe

"C:\Users\Admin\AppData\Local\Temp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.exe"

C:\Users\Admin\AppData\Local\Temp\is-2R4V2.tmp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp

"C:\Users\Admin\AppData\Local\Temp\is-2R4V2.tmp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp" /SL5="$A0044,1935887,54272,C:\Users\Admin\AppData\Local\Temp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.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 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 20.231.121.79:80 tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.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 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 210.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
LT 91.211.247.248:53 ddiabhe.info udp
US 8.8.8.8:53 248.247.211.91.in-addr.arpa udp
MD 45.142.214.240:80 ddiabhe.info tcp
NL 193.222.96.219:2023 tcp
US 8.8.8.8:53 240.214.142.45.in-addr.arpa udp
US 8.8.8.8:53 219.96.222.193.in-addr.arpa udp
US 8.8.8.8:53 59.189.79.40.in-addr.arpa udp

Files

memory/4816-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4816-2-0x0000000000400000-0x0000000000414000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-2R4V2.tmp\c328aa52b0262a374d42a9cb368b1c024376588d547cb8a249bd2b443c75151f.tmp

MD5 5a1e3d46cb5a24f8e50b2a59d2ba1cf3
SHA1 fe86894c4757c144449bc744649b7fb9e03346f1
SHA256 d3a2c2ce7d70b3b9c30faf3f72bf4ebcdea8f331d6b6cac5dae906327997985d
SHA512 a27dc5c443abb31826b14e514aa717be5bf0f548b82170f79705f45ca28abaedc485c5b8738044735f61eca9e1f0ca659b519a3947551404085d07202ae709af

memory/4960-7-0x0000000002100000-0x0000000002101000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-T0HDL.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 aab53ad82ae610c58d3f84145b5faf33
SHA1 1095d690a94c7a3b8efe3b4d0ae3e081b3f4d8a1
SHA256 357e8d5b68ecd7c862b7128059e1691138590eacada4c925b307e30a1738c867
SHA512 33df4fd877180feb0eea30b96b947a1d6c87c1de80e0ef0e101a06202d9fcc82d5bc9f9496678f268aee3bce18d6cb1acf064fb0aa9eaf641ece396166f12668

memory/1324-38-0x0000000000400000-0x0000000000633000-memory.dmp

memory/1324-39-0x0000000000400000-0x0000000000633000-memory.dmp

memory/1324-42-0x0000000000400000-0x0000000000633000-memory.dmp

memory/1324-43-0x0000000000400000-0x0000000000633000-memory.dmp

memory/1924-45-0x0000000000400000-0x0000000000633000-memory.dmp

memory/1924-47-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4816-48-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4960-49-0x0000000000400000-0x00000000004B8000-memory.dmp

memory/1924-50-0x0000000000400000-0x0000000000633000-memory.dmp

memory/4960-51-0x0000000002100000-0x0000000002101000-memory.dmp

memory/1924-54-0x0000000000400000-0x0000000000633000-memory.dmp

memory/1924-55-0x0000000000400000-0x0000000000633000-memory.dmp

memory/1924-58-0x0000000000400000-0x0000000000633000-memory.dmp

memory/1924-61-0x0000000000400000-0x0000000000633000-memory.dmp

memory/1924-64-0x0000000000400000-0x0000000000633000-memory.dmp

memory/1924-67-0x0000000000400000-0x0000000000633000-memory.dmp

memory/1924-68-0x00000000007F0000-0x0000000000892000-memory.dmp

memory/1924-69-0x00000000007F0000-0x0000000000892000-memory.dmp

memory/1924-75-0x0000000000400000-0x0000000000633000-memory.dmp

memory/1924-78-0x0000000000400000-0x0000000000633000-memory.dmp

memory/1924-79-0x00000000007F0000-0x0000000000892000-memory.dmp

memory/1924-82-0x0000000000400000-0x0000000000633000-memory.dmp

memory/1924-85-0x0000000000400000-0x0000000000633000-memory.dmp

memory/1924-88-0x0000000000400000-0x0000000000633000-memory.dmp

memory/1924-91-0x0000000000400000-0x0000000000633000-memory.dmp

memory/1924-92-0x00000000007F0000-0x0000000000892000-memory.dmp

memory/1924-93-0x00000000007F0000-0x0000000000892000-memory.dmp

memory/1924-97-0x0000000000400000-0x0000000000633000-memory.dmp

memory/1924-100-0x0000000000400000-0x0000000000633000-memory.dmp