Malware Analysis Report

2025-08-10 11:55

Sample ID 240323-q5p7zsba6y
Target ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1
SHA256 ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1
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

ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1

Threat Level: Known bad

The file ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1 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

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-23 13:50

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-23 13:50

Reported

2024-03-23 13:53

Platform

win10v2004-20240226-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.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 1280 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.exe C:\Users\Admin\AppData\Local\Temp\is-0RU3E.tmp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.tmp
PID 1280 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.exe C:\Users\Admin\AppData\Local\Temp\is-0RU3E.tmp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.tmp
PID 1280 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.exe C:\Users\Admin\AppData\Local\Temp\is-0RU3E.tmp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.tmp
PID 2500 wrote to memory of 1596 N/A C:\Users\Admin\AppData\Local\Temp\is-0RU3E.tmp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.tmp C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
PID 2500 wrote to memory of 1596 N/A C:\Users\Admin\AppData\Local\Temp\is-0RU3E.tmp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.tmp C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
PID 2500 wrote to memory of 1596 N/A C:\Users\Admin\AppData\Local\Temp\is-0RU3E.tmp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.tmp C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
PID 2500 wrote to memory of 384 N/A C:\Users\Admin\AppData\Local\Temp\is-0RU3E.tmp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.tmp C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
PID 2500 wrote to memory of 384 N/A C:\Users\Admin\AppData\Local\Temp\is-0RU3E.tmp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.tmp C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
PID 2500 wrote to memory of 384 N/A C:\Users\Admin\AppData\Local\Temp\is-0RU3E.tmp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.tmp C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe

Processes

C:\Users\Admin\AppData\Local\Temp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.exe

"C:\Users\Admin\AppData\Local\Temp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.exe"

C:\Users\Admin\AppData\Local\Temp\is-0RU3E.tmp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.tmp

"C:\Users\Admin\AppData\Local\Temp\is-0RU3E.tmp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.tmp" /SL5="$90030,1781689,54272,C:\Users\Admin\AppData\Local\Temp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.exe"

C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe

"C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i

C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe

"C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4068 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 209.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
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 45.19.74.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 20.231.121.79:80 tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 128.225.79.178.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.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
HK 141.98.234.31:53 bmnxqvn.com udp
US 8.8.8.8:53 31.234.98.141.in-addr.arpa udp
MD 45.142.214.240:80 bmnxqvn.com tcp
US 8.8.8.8:53 240.214.142.45.in-addr.arpa udp
US 8.8.8.8:53 18.173.189.20.in-addr.arpa udp

Files

memory/1280-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1280-2-0x0000000000400000-0x0000000000414000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-0RU3E.tmp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.tmp

MD5 d394fc26de69f06950dc1c71959b0261
SHA1 7c9448fc3582f19763eaa8e3c5383b7873aee017
SHA256 405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a
SHA512 63ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10

memory/2500-7-0x0000000002240000-0x0000000002241000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-ECMN9.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

memory/1280-17-0x0000000000400000-0x0000000000414000-memory.dmp

C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe

MD5 a8f9420959ddb2ee550f7e21644357a7
SHA1 4e429af917fe5e50b210c1aaa12e62a3e0c51d8f
SHA256 c57954dfad4f4bc99ac2fdba834e684831d0e8f1e8fb2ccc14463090739b09e7
SHA512 d2890847e9f98a6f8a2ff1126c9c0917b17caa1c9a9d1bf59280588f4c9b1c09b92e1520c50d0eb8721bb6fe5ef235c56ea2c2bd9640423aa884d376f082d928

memory/1596-39-0x0000000000400000-0x0000000000611000-memory.dmp

memory/1596-40-0x0000000000400000-0x0000000000611000-memory.dmp

memory/1596-41-0x0000000000400000-0x0000000000611000-memory.dmp

memory/1596-44-0x0000000000400000-0x0000000000611000-memory.dmp

memory/2500-46-0x0000000000400000-0x00000000004B8000-memory.dmp

memory/384-48-0x0000000000400000-0x0000000000611000-memory.dmp

memory/384-49-0x0000000000400000-0x0000000000611000-memory.dmp

memory/2500-51-0x0000000002240000-0x0000000002241000-memory.dmp

memory/384-53-0x0000000000400000-0x0000000000611000-memory.dmp

memory/384-55-0x0000000000400000-0x0000000000611000-memory.dmp

memory/384-57-0x0000000000400000-0x0000000000611000-memory.dmp

memory/384-60-0x0000000000400000-0x0000000000611000-memory.dmp

memory/384-63-0x0000000000400000-0x0000000000611000-memory.dmp

memory/384-66-0x0000000000400000-0x0000000000611000-memory.dmp

memory/384-69-0x0000000000400000-0x0000000000611000-memory.dmp

memory/384-71-0x00000000008B0000-0x0000000000952000-memory.dmp

memory/384-70-0x00000000008B0000-0x0000000000952000-memory.dmp

memory/384-77-0x0000000000400000-0x0000000000611000-memory.dmp

memory/384-80-0x0000000000400000-0x0000000000611000-memory.dmp

memory/384-81-0x00000000008B0000-0x0000000000952000-memory.dmp

memory/384-84-0x0000000000400000-0x0000000000611000-memory.dmp

memory/384-87-0x0000000000400000-0x0000000000611000-memory.dmp

memory/384-90-0x0000000000400000-0x0000000000611000-memory.dmp

memory/384-93-0x0000000000400000-0x0000000000611000-memory.dmp

memory/384-97-0x0000000000400000-0x0000000000611000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-23 13:50

Reported

2024-03-23 13:53

Platform

win11-20240221-en

Max time kernel

146s

Max time network

133s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.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 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 1196 wrote to memory of 4920 N/A C:\Users\Admin\AppData\Local\Temp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.exe C:\Users\Admin\AppData\Local\Temp\is-U3P1T.tmp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.tmp
PID 1196 wrote to memory of 4920 N/A C:\Users\Admin\AppData\Local\Temp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.exe C:\Users\Admin\AppData\Local\Temp\is-U3P1T.tmp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.tmp
PID 1196 wrote to memory of 4920 N/A C:\Users\Admin\AppData\Local\Temp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.exe C:\Users\Admin\AppData\Local\Temp\is-U3P1T.tmp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.tmp
PID 4920 wrote to memory of 4496 N/A C:\Users\Admin\AppData\Local\Temp\is-U3P1T.tmp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.tmp C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
PID 4920 wrote to memory of 4496 N/A C:\Users\Admin\AppData\Local\Temp\is-U3P1T.tmp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.tmp C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
PID 4920 wrote to memory of 4496 N/A C:\Users\Admin\AppData\Local\Temp\is-U3P1T.tmp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.tmp C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
PID 4920 wrote to memory of 4464 N/A C:\Users\Admin\AppData\Local\Temp\is-U3P1T.tmp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.tmp C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
PID 4920 wrote to memory of 4464 N/A C:\Users\Admin\AppData\Local\Temp\is-U3P1T.tmp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.tmp C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
PID 4920 wrote to memory of 4464 N/A C:\Users\Admin\AppData\Local\Temp\is-U3P1T.tmp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.tmp C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe

Processes

C:\Users\Admin\AppData\Local\Temp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.exe

"C:\Users\Admin\AppData\Local\Temp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.exe"

C:\Users\Admin\AppData\Local\Temp\is-U3P1T.tmp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.tmp

"C:\Users\Admin\AppData\Local\Temp\is-U3P1T.tmp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.tmp" /SL5="$70058,1781689,54272,C:\Users\Admin\AppData\Local\Temp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.exe"

C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe

"C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i

C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe

"C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s

Network

Country Destination Domain Proto
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
SE 45.155.250.90:53 ddjurzz.info udp
MD 45.142.214.240:80 ddjurzz.info tcp
US 8.8.8.8:53 240.214.142.45.in-addr.arpa udp

Files

memory/1196-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1196-2-0x0000000000400000-0x0000000000414000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-U3P1T.tmp\ac9c83755d42aa96f1654229b594fa401113a79222b9deef71a1d4f18a5e8fc1.tmp

MD5 d394fc26de69f06950dc1c71959b0261
SHA1 7c9448fc3582f19763eaa8e3c5383b7873aee017
SHA256 405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a
SHA512 63ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10

memory/4920-7-0x0000000002340000-0x0000000002341000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-P51GM.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe

MD5 a8f9420959ddb2ee550f7e21644357a7
SHA1 4e429af917fe5e50b210c1aaa12e62a3e0c51d8f
SHA256 c57954dfad4f4bc99ac2fdba834e684831d0e8f1e8fb2ccc14463090739b09e7
SHA512 d2890847e9f98a6f8a2ff1126c9c0917b17caa1c9a9d1bf59280588f4c9b1c09b92e1520c50d0eb8721bb6fe5ef235c56ea2c2bd9640423aa884d376f082d928

memory/4496-39-0x0000000000400000-0x0000000000611000-memory.dmp

memory/4496-43-0x0000000000400000-0x0000000000611000-memory.dmp

memory/4496-41-0x0000000000400000-0x0000000000611000-memory.dmp

memory/4496-38-0x0000000000400000-0x0000000000611000-memory.dmp

memory/4464-46-0x0000000000400000-0x0000000000611000-memory.dmp

memory/1196-47-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4920-48-0x0000000000400000-0x00000000004B8000-memory.dmp

memory/4464-49-0x0000000000400000-0x0000000000611000-memory.dmp

memory/4920-50-0x0000000002340000-0x0000000002341000-memory.dmp

memory/4464-53-0x0000000000400000-0x0000000000611000-memory.dmp

memory/4464-54-0x0000000000400000-0x0000000000611000-memory.dmp

memory/4464-57-0x0000000000400000-0x0000000000611000-memory.dmp

memory/4464-60-0x0000000000400000-0x0000000000611000-memory.dmp

memory/4464-63-0x0000000000400000-0x0000000000611000-memory.dmp

memory/4464-66-0x0000000000400000-0x0000000000611000-memory.dmp

memory/4464-68-0x0000000000A30000-0x0000000000AD2000-memory.dmp

memory/4464-74-0x0000000000400000-0x0000000000611000-memory.dmp

memory/4464-77-0x0000000000400000-0x0000000000611000-memory.dmp

memory/4464-78-0x0000000000A30000-0x0000000000AD2000-memory.dmp

memory/4464-81-0x0000000000400000-0x0000000000611000-memory.dmp

memory/4464-84-0x0000000000400000-0x0000000000611000-memory.dmp

memory/4464-87-0x0000000000400000-0x0000000000611000-memory.dmp

memory/4464-90-0x0000000000400000-0x0000000000611000-memory.dmp

memory/4464-94-0x0000000000400000-0x0000000000611000-memory.dmp

memory/4464-97-0x0000000000400000-0x0000000000611000-memory.dmp