Malware Analysis Report

2025-08-10 11:56

Sample ID 240323-vs48lacd3v
Target 2f2b5ff3c33c62109f96e65c1d7601b0.exe
SHA256 37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81
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

37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81

Threat Level: Known bad

The file 2f2b5ff3c33c62109f96e65c1d7601b0.exe 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

2024-03-23 17:16

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-23 17:16

Reported

2024-03-23 17:18

Platform

win7-20240220-en

Max time kernel

143s

Max time network

128s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2f2b5ff3c33c62109f96e65c1d7601b0.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 2064 wrote to memory of 2840 N/A C:\Users\Admin\AppData\Local\Temp\2f2b5ff3c33c62109f96e65c1d7601b0.exe C:\Users\Admin\AppData\Local\Temp\is-4IA1C.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp
PID 2064 wrote to memory of 2840 N/A C:\Users\Admin\AppData\Local\Temp\2f2b5ff3c33c62109f96e65c1d7601b0.exe C:\Users\Admin\AppData\Local\Temp\is-4IA1C.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp
PID 2064 wrote to memory of 2840 N/A C:\Users\Admin\AppData\Local\Temp\2f2b5ff3c33c62109f96e65c1d7601b0.exe C:\Users\Admin\AppData\Local\Temp\is-4IA1C.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp
PID 2064 wrote to memory of 2840 N/A C:\Users\Admin\AppData\Local\Temp\2f2b5ff3c33c62109f96e65c1d7601b0.exe C:\Users\Admin\AppData\Local\Temp\is-4IA1C.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp
PID 2064 wrote to memory of 2840 N/A C:\Users\Admin\AppData\Local\Temp\2f2b5ff3c33c62109f96e65c1d7601b0.exe C:\Users\Admin\AppData\Local\Temp\is-4IA1C.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp
PID 2064 wrote to memory of 2840 N/A C:\Users\Admin\AppData\Local\Temp\2f2b5ff3c33c62109f96e65c1d7601b0.exe C:\Users\Admin\AppData\Local\Temp\is-4IA1C.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp
PID 2064 wrote to memory of 2840 N/A C:\Users\Admin\AppData\Local\Temp\2f2b5ff3c33c62109f96e65c1d7601b0.exe C:\Users\Admin\AppData\Local\Temp\is-4IA1C.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp
PID 2840 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\is-4IA1C.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
PID 2840 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\is-4IA1C.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
PID 2840 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\is-4IA1C.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
PID 2840 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\is-4IA1C.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
PID 2840 wrote to memory of 2524 N/A C:\Users\Admin\AppData\Local\Temp\is-4IA1C.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
PID 2840 wrote to memory of 2524 N/A C:\Users\Admin\AppData\Local\Temp\is-4IA1C.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
PID 2840 wrote to memory of 2524 N/A C:\Users\Admin\AppData\Local\Temp\is-4IA1C.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
PID 2840 wrote to memory of 2524 N/A C:\Users\Admin\AppData\Local\Temp\is-4IA1C.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2f2b5ff3c33c62109f96e65c1d7601b0.exe

"C:\Users\Admin\AppData\Local\Temp\2f2b5ff3c33c62109f96e65c1d7601b0.exe"

C:\Users\Admin\AppData\Local\Temp\is-4IA1C.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp

"C:\Users\Admin\AppData\Local\Temp\is-4IA1C.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp" /SL5="$70126,1752368,54272,C:\Users\Admin\AppData\Local\Temp\2f2b5ff3c33c62109f96e65c1d7601b0.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
SE 45.155.250.90:53 bgkriib.com udp
MD 45.142.214.240:80 bgkriib.com tcp

Files

memory/2064-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2064-2-0x0000000000400000-0x0000000000414000-memory.dmp

\Users\Admin\AppData\Local\Temp\is-4IA1C.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp

MD5 d394fc26de69f06950dc1c71959b0261
SHA1 7c9448fc3582f19763eaa8e3c5383b7873aee017
SHA256 405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a
SHA512 63ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10

memory/2840-9-0x0000000000240000-0x0000000000241000-memory.dmp

\Users\Admin\AppData\Local\Temp\is-22U8P.tmp\_isetup\_shfoldr.dll

MD5 92dc6ef532fbb4a5c3201469a5b5eb63
SHA1 3e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA256 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA512 9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

\Users\Admin\AppData\Local\Temp\is-22U8P.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 c963718dcfbf0c912a40a46bafcbe6f1
SHA1 8633310a8cc797a59a63d8fd54456893402296f8
SHA256 9cc03473e79df79135bfad64f51cc2ab03eeba069494045a91ddf0d2745345f6
SHA512 f9191caf21877ed861ad09019abf50c591ad5bcb2a478e4518e3e7aa64af73373d46c81e8829e80ac8be78be47d4ea83ff1e420e59297d1cff1718c37ca35c65

memory/2840-43-0x0000000003710000-0x0000000003921000-memory.dmp

memory/2564-44-0x0000000000400000-0x0000000000611000-memory.dmp

memory/2564-45-0x0000000000400000-0x0000000000611000-memory.dmp

memory/2564-46-0x0000000000400000-0x0000000000611000-memory.dmp

memory/2564-49-0x0000000000400000-0x0000000000611000-memory.dmp

memory/2524-51-0x0000000000400000-0x0000000000611000-memory.dmp

memory/2524-53-0x0000000000400000-0x0000000000611000-memory.dmp

memory/2064-54-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2840-55-0x0000000000400000-0x00000000004B8000-memory.dmp

memory/2524-56-0x0000000000400000-0x0000000000611000-memory.dmp

memory/2840-57-0x0000000000240000-0x0000000000241000-memory.dmp

memory/2840-58-0x0000000003710000-0x0000000003921000-memory.dmp

memory/2524-61-0x0000000000400000-0x0000000000611000-memory.dmp

memory/2524-62-0x0000000000400000-0x0000000000611000-memory.dmp

memory/2524-65-0x0000000000400000-0x0000000000611000-memory.dmp

memory/2524-68-0x0000000000400000-0x0000000000611000-memory.dmp

memory/2524-71-0x0000000000400000-0x0000000000611000-memory.dmp

memory/2524-74-0x00000000025D0000-0x0000000002672000-memory.dmp

memory/2524-75-0x0000000000400000-0x0000000000611000-memory.dmp

memory/2524-77-0x00000000025D0000-0x0000000002672000-memory.dmp

memory/2524-82-0x0000000000400000-0x0000000000611000-memory.dmp

memory/2524-85-0x0000000000400000-0x0000000000611000-memory.dmp

memory/2524-86-0x00000000025D0000-0x0000000002672000-memory.dmp

memory/2524-89-0x0000000000400000-0x0000000000611000-memory.dmp

memory/2524-92-0x0000000000400000-0x0000000000611000-memory.dmp

memory/2524-95-0x0000000000400000-0x0000000000611000-memory.dmp

memory/2524-98-0x0000000000400000-0x0000000000611000-memory.dmp

memory/2524-102-0x0000000000400000-0x0000000000611000-memory.dmp

memory/2524-105-0x0000000000400000-0x0000000000611000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-23 17:16

Reported

2024-03-23 17:18

Platform

win10v2004-20240226-en

Max time kernel

145s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2f2b5ff3c33c62109f96e65c1d7601b0.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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-EMEM3.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp N/A

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 408 wrote to memory of 2788 N/A C:\Users\Admin\AppData\Local\Temp\2f2b5ff3c33c62109f96e65c1d7601b0.exe C:\Users\Admin\AppData\Local\Temp\is-EMEM3.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp
PID 408 wrote to memory of 2788 N/A C:\Users\Admin\AppData\Local\Temp\2f2b5ff3c33c62109f96e65c1d7601b0.exe C:\Users\Admin\AppData\Local\Temp\is-EMEM3.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp
PID 408 wrote to memory of 2788 N/A C:\Users\Admin\AppData\Local\Temp\2f2b5ff3c33c62109f96e65c1d7601b0.exe C:\Users\Admin\AppData\Local\Temp\is-EMEM3.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp
PID 2788 wrote to memory of 4508 N/A C:\Users\Admin\AppData\Local\Temp\is-EMEM3.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
PID 2788 wrote to memory of 4508 N/A C:\Users\Admin\AppData\Local\Temp\is-EMEM3.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
PID 2788 wrote to memory of 4508 N/A C:\Users\Admin\AppData\Local\Temp\is-EMEM3.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
PID 2788 wrote to memory of 5004 N/A C:\Users\Admin\AppData\Local\Temp\is-EMEM3.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
PID 2788 wrote to memory of 5004 N/A C:\Users\Admin\AppData\Local\Temp\is-EMEM3.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
PID 2788 wrote to memory of 5004 N/A C:\Users\Admin\AppData\Local\Temp\is-EMEM3.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2f2b5ff3c33c62109f96e65c1d7601b0.exe

"C:\Users\Admin\AppData\Local\Temp\2f2b5ff3c33c62109f96e65c1d7601b0.exe"

C:\Users\Admin\AppData\Local\Temp\is-EMEM3.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp

"C:\Users\Admin\AppData\Local\Temp\is-EMEM3.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp" /SL5="$60222,1752368,54272,C:\Users\Admin\AppData\Local\Temp\2f2b5ff3c33c62109f96e65c1d7601b0.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=4092 --field-trial-handle=2280,i,716736634476467098,11449718822158202904,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 71.159.190.20.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 61.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 83.179.17.96.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 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 134.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 65.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.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
SE 45.155.250.90:53 dixabom.info udp
US 8.8.8.8:53 210.143.182.52.in-addr.arpa udp
US 8.8.8.8:53 90.250.155.45.in-addr.arpa udp
MD 45.142.214.240:80 dixabom.info tcp
US 8.8.8.8:53 240.214.142.45.in-addr.arpa udp

Files

memory/408-0-0x0000000000400000-0x0000000000414000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-EMEM3.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp

MD5 ba991ea5f80af70db4b3da2557465a22
SHA1 e4e66ecef3abd5783f23d9fc9ef5ee07f21eb2c0
SHA256 40712b93522563c3c0db91b9d4fc1366588f298e6f64b1e2050ae568f54e1e1c
SHA512 b21a39e753cf871eb0cfb7bd68b5887c5635261035ced2049c37224fb9d1063f2d40f5a67ce12149441300135de58c78d479448a882eaaef74a22236e0e3d681

C:\Users\Admin\AppData\Local\Temp\is-EMEM3.tmp\2f2b5ff3c33c62109f96e65c1d7601b0.tmp

MD5 115eab531930265a00fb23e55fc31990
SHA1 2de77c75b43892aa0d7511e3a99b8f9848827786
SHA256 744418eaaf23c708479a42a57e1c17d792dd6714b4478d8e856f07b65b8dacf9
SHA512 38c86b40e56251aa4dace68bb98ec6b49b9d5eedd2aa7686323fc32ccd6302740038aa573ab27af425a62870a87d0facaacaa01864956354efdb22b154bbc58b

memory/408-6-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2788-7-0x0000000002340000-0x0000000002341000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-FIJF5.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 c963718dcfbf0c912a40a46bafcbe6f1
SHA1 8633310a8cc797a59a63d8fd54456893402296f8
SHA256 9cc03473e79df79135bfad64f51cc2ab03eeba069494045a91ddf0d2745345f6
SHA512 f9191caf21877ed861ad09019abf50c591ad5bcb2a478e4518e3e7aa64af73373d46c81e8829e80ac8be78be47d4ea83ff1e420e59297d1cff1718c37ca35c65

memory/4508-38-0x0000000000400000-0x0000000000611000-memory.dmp

memory/4508-39-0x0000000000400000-0x0000000000611000-memory.dmp

memory/4508-40-0x0000000000400000-0x0000000000611000-memory.dmp

memory/4508-43-0x0000000000400000-0x0000000000611000-memory.dmp

memory/5004-46-0x0000000000400000-0x0000000000611000-memory.dmp

memory/408-47-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2788-48-0x0000000000400000-0x00000000004B8000-memory.dmp

memory/5004-51-0x0000000000400000-0x0000000000611000-memory.dmp

memory/2788-52-0x0000000002340000-0x0000000002341000-memory.dmp

memory/5004-55-0x0000000000400000-0x0000000000611000-memory.dmp

memory/5004-56-0x0000000000400000-0x0000000000611000-memory.dmp

memory/5004-58-0x0000000000400000-0x0000000000611000-memory.dmp

memory/5004-61-0x0000000000400000-0x0000000000611000-memory.dmp

memory/5004-63-0x0000000000400000-0x0000000000611000-memory.dmp

memory/5004-67-0x0000000000940000-0x00000000009E2000-memory.dmp

memory/5004-68-0x0000000000400000-0x0000000000611000-memory.dmp

memory/5004-69-0x0000000000940000-0x00000000009E2000-memory.dmp

memory/5004-75-0x0000000000400000-0x0000000000611000-memory.dmp

memory/5004-79-0x0000000000400000-0x0000000000611000-memory.dmp

memory/5004-80-0x0000000000940000-0x00000000009E2000-memory.dmp

memory/5004-83-0x0000000000400000-0x0000000000611000-memory.dmp

memory/5004-85-0x0000000000400000-0x0000000000611000-memory.dmp

memory/5004-88-0x0000000000400000-0x0000000000611000-memory.dmp

memory/5004-90-0x0000000000400000-0x0000000000611000-memory.dmp