Malware Analysis Report

2025-08-11 07:17

Sample ID 240802-2x23csydnh
Target 14fd83efa15721e152b8f8fec9af80e0N.exe
SHA256 5c37bbaf5ef64b987f5e7d2e7ab5696b945ec6b2418e35e476354ed06974d0df
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

5c37bbaf5ef64b987f5e7d2e7ab5696b945ec6b2418e35e476354ed06974d0df

Threat Level: Known bad

The file 14fd83efa15721e152b8f8fec9af80e0N.exe was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Detect Socks5Systemz Payload

Socks5Systemz

Executes dropped EXE

Loads dropped DLL

Checks installed software on the system

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-02 22:58

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-02 22:58

Reported

2024-08-02 23:00

Platform

win7-20240704-en

Max time kernel

112s

Max time network

17s

Command Line

"C:\Users\Admin\AppData\Local\Temp\14fd83efa15721e152b8f8fec9af80e0N.exe"

Signatures

Detect Socks5Systemz Payload

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

Socks5Systemz

botnet socks5systemz

Checks installed software on the system

discovery

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\directmidi2mp3converter.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\directmidi2mp3converter.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\14fd83efa15721e152b8f8fec9af80e0N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\is-3VFBU.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-3VFBU.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2084 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\14fd83efa15721e152b8f8fec9af80e0N.exe C:\Users\Admin\AppData\Local\Temp\is-3VFBU.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp
PID 2084 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\14fd83efa15721e152b8f8fec9af80e0N.exe C:\Users\Admin\AppData\Local\Temp\is-3VFBU.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp
PID 2084 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\14fd83efa15721e152b8f8fec9af80e0N.exe C:\Users\Admin\AppData\Local\Temp\is-3VFBU.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp
PID 2084 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\14fd83efa15721e152b8f8fec9af80e0N.exe C:\Users\Admin\AppData\Local\Temp\is-3VFBU.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp
PID 2084 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\14fd83efa15721e152b8f8fec9af80e0N.exe C:\Users\Admin\AppData\Local\Temp\is-3VFBU.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp
PID 2084 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\14fd83efa15721e152b8f8fec9af80e0N.exe C:\Users\Admin\AppData\Local\Temp\is-3VFBU.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp
PID 2084 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\14fd83efa15721e152b8f8fec9af80e0N.exe C:\Users\Admin\AppData\Local\Temp\is-3VFBU.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp
PID 2664 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\is-3VFBU.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\directmidi2mp3converter.exe
PID 2664 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\is-3VFBU.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\directmidi2mp3converter.exe
PID 2664 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\is-3VFBU.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\directmidi2mp3converter.exe
PID 2664 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\is-3VFBU.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\directmidi2mp3converter.exe
PID 2664 wrote to memory of 1656 N/A C:\Users\Admin\AppData\Local\Temp\is-3VFBU.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\directmidi2mp3converter.exe
PID 2664 wrote to memory of 1656 N/A C:\Users\Admin\AppData\Local\Temp\is-3VFBU.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\directmidi2mp3converter.exe
PID 2664 wrote to memory of 1656 N/A C:\Users\Admin\AppData\Local\Temp\is-3VFBU.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\directmidi2mp3converter.exe
PID 2664 wrote to memory of 1656 N/A C:\Users\Admin\AppData\Local\Temp\is-3VFBU.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\directmidi2mp3converter.exe

Processes

C:\Users\Admin\AppData\Local\Temp\14fd83efa15721e152b8f8fec9af80e0N.exe

"C:\Users\Admin\AppData\Local\Temp\14fd83efa15721e152b8f8fec9af80e0N.exe"

C:\Users\Admin\AppData\Local\Temp\is-3VFBU.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp

"C:\Users\Admin\AppData\Local\Temp\is-3VFBU.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp" /SL5="$400C6,4634103,54272,C:\Users\Admin\AppData\Local\Temp\14fd83efa15721e152b8f8fec9af80e0N.exe"

C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\directmidi2mp3converter.exe

"C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\directmidi2mp3converter.exe" -i

C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\directmidi2mp3converter.exe

"C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\directmidi2mp3converter.exe" -s

Network

N/A

Files

memory/2084-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2084-2-0x0000000000401000-0x000000000040B000-memory.dmp

\Users\Admin\AppData\Local\Temp\is-3VFBU.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp

MD5 3762f8a096cfe22083d6c5b226263039
SHA1 c827939ed24cd2100f22036407a18c03ba317082
SHA256 747927b87649bc678fb189152989435985b60e8109975ebc88964e11451143be
SHA512 be3fda17939e36ca1e53d3012dad7ce40322cdf1d7dd2caecf9726c6a5cede3e0d016bfa9c0d5b4f176c8a76903c73dd87825f97e7bb5f209611b42782698d63

\Users\Admin\AppData\Local\Temp\is-UJV2K.tmp\_isetup\_shfoldr.dll

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

memory/2664-16-0x0000000000400000-0x00000000004BD000-memory.dmp

\Users\Admin\AppData\Local\Temp\is-UJV2K.tmp\_isetup\_isdecmp.dll

MD5 a813d18268affd4763dde940246dc7e5
SHA1 c7366e1fd925c17cc6068001bd38eaef5b42852f
SHA256 e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64
SHA512 b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

\Users\Admin\AppData\Local\Temp\is-UJV2K.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\directmidi2mp3converter.exe

MD5 b39a7e7ca422d1ca0b74c51ca795eb0e
SHA1 bfc6ee7f7b179ee16531a6a8eb0bf4399b53c867
SHA256 8bf2fa2cd96a7c6fa873609f7716c55a98dd1b224873bce5263eb86f5896da8a
SHA512 24a30ee12fbf77ab18fa4807e357b7194545078e1f6a87ed50ebc771e14bf7135558c5947cf2ba0026a2a3f20171ec0ac771cf7b2fd16913fe8198030e42e1bf

memory/2664-59-0x0000000003440000-0x000000000388F000-memory.dmp

memory/2544-60-0x0000000000400000-0x000000000084F000-memory.dmp

memory/2544-61-0x0000000000400000-0x000000000084F000-memory.dmp

memory/2544-64-0x0000000000400000-0x000000000084F000-memory.dmp

memory/1656-66-0x0000000000400000-0x000000000084F000-memory.dmp

memory/2084-68-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2664-69-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/1656-70-0x0000000000400000-0x000000000084F000-memory.dmp

memory/2664-71-0x0000000003440000-0x000000000388F000-memory.dmp

memory/1656-74-0x0000000000400000-0x000000000084F000-memory.dmp

memory/1656-77-0x0000000000400000-0x000000000084F000-memory.dmp

memory/1656-80-0x0000000000400000-0x000000000084F000-memory.dmp

memory/1656-83-0x0000000000400000-0x000000000084F000-memory.dmp

memory/1656-86-0x0000000000400000-0x000000000084F000-memory.dmp

memory/1656-87-0x0000000002840000-0x00000000028E2000-memory.dmp

memory/1656-93-0x0000000000400000-0x000000000084F000-memory.dmp

memory/1656-96-0x0000000000400000-0x000000000084F000-memory.dmp

memory/1656-99-0x0000000000400000-0x000000000084F000-memory.dmp

memory/1656-102-0x0000000000400000-0x000000000084F000-memory.dmp

memory/1656-105-0x0000000000400000-0x000000000084F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-02 22:58

Reported

2024-08-02 23:00

Platform

win10v2004-20240802-en

Max time kernel

112s

Max time network

95s

Command Line

"C:\Users\Admin\AppData\Local\Temp\14fd83efa15721e152b8f8fec9af80e0N.exe"

Signatures

Detect Socks5Systemz Payload

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

Socks5Systemz

botnet socks5systemz

Checks installed software on the system

discovery

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\directmidi2mp3converter.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\14fd83efa15721e152b8f8fec9af80e0N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\is-EAEMO.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\directmidi2mp3converter.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-EAEMO.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2932 wrote to memory of 1468 N/A C:\Users\Admin\AppData\Local\Temp\14fd83efa15721e152b8f8fec9af80e0N.exe C:\Users\Admin\AppData\Local\Temp\is-EAEMO.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp
PID 2932 wrote to memory of 1468 N/A C:\Users\Admin\AppData\Local\Temp\14fd83efa15721e152b8f8fec9af80e0N.exe C:\Users\Admin\AppData\Local\Temp\is-EAEMO.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp
PID 2932 wrote to memory of 1468 N/A C:\Users\Admin\AppData\Local\Temp\14fd83efa15721e152b8f8fec9af80e0N.exe C:\Users\Admin\AppData\Local\Temp\is-EAEMO.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp
PID 1468 wrote to memory of 880 N/A C:\Users\Admin\AppData\Local\Temp\is-EAEMO.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\directmidi2mp3converter.exe
PID 1468 wrote to memory of 880 N/A C:\Users\Admin\AppData\Local\Temp\is-EAEMO.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\directmidi2mp3converter.exe
PID 1468 wrote to memory of 880 N/A C:\Users\Admin\AppData\Local\Temp\is-EAEMO.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\directmidi2mp3converter.exe
PID 1468 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\Temp\is-EAEMO.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\directmidi2mp3converter.exe
PID 1468 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\Temp\is-EAEMO.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\directmidi2mp3converter.exe
PID 1468 wrote to memory of 860 N/A C:\Users\Admin\AppData\Local\Temp\is-EAEMO.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\directmidi2mp3converter.exe

Processes

C:\Users\Admin\AppData\Local\Temp\14fd83efa15721e152b8f8fec9af80e0N.exe

"C:\Users\Admin\AppData\Local\Temp\14fd83efa15721e152b8f8fec9af80e0N.exe"

C:\Users\Admin\AppData\Local\Temp\is-EAEMO.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp

"C:\Users\Admin\AppData\Local\Temp\is-EAEMO.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp" /SL5="$90060,4634103,54272,C:\Users\Admin\AppData\Local\Temp\14fd83efa15721e152b8f8fec9af80e0N.exe"

C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\directmidi2mp3converter.exe

"C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\directmidi2mp3converter.exe" -i

C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\directmidi2mp3converter.exe

"C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\directmidi2mp3converter.exe" -s

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/2932-1-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2932-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-EAEMO.tmp\14fd83efa15721e152b8f8fec9af80e0N.tmp

MD5 3762f8a096cfe22083d6c5b226263039
SHA1 c827939ed24cd2100f22036407a18c03ba317082
SHA256 747927b87649bc678fb189152989435985b60e8109975ebc88964e11451143be
SHA512 be3fda17939e36ca1e53d3012dad7ce40322cdf1d7dd2caecf9726c6a5cede3e0d016bfa9c0d5b4f176c8a76903c73dd87825f97e7bb5f209611b42782698d63

memory/1468-7-0x0000000000400000-0x00000000004BD000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-P9J1H.tmp\_isetup\_isdecmp.dll

MD5 a813d18268affd4763dde940246dc7e5
SHA1 c7366e1fd925c17cc6068001bd38eaef5b42852f
SHA256 e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64
SHA512 b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

C:\Users\Admin\AppData\Local\Temp\is-P9J1H.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\directmidi2mp3converter.exe

MD5 b39a7e7ca422d1ca0b74c51ca795eb0e
SHA1 bfc6ee7f7b179ee16531a6a8eb0bf4399b53c867
SHA256 8bf2fa2cd96a7c6fa873609f7716c55a98dd1b224873bce5263eb86f5896da8a
SHA512 24a30ee12fbf77ab18fa4807e357b7194545078e1f6a87ed50ebc771e14bf7135558c5947cf2ba0026a2a3f20171ec0ac771cf7b2fd16913fe8198030e42e1bf

memory/880-58-0x0000000000400000-0x000000000084F000-memory.dmp

memory/880-61-0x0000000000400000-0x000000000084F000-memory.dmp

memory/880-59-0x0000000000400000-0x000000000084F000-memory.dmp

memory/880-63-0x0000000000400000-0x000000000084F000-memory.dmp

memory/860-66-0x0000000000400000-0x000000000084F000-memory.dmp

memory/2932-67-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1468-68-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/860-69-0x0000000000400000-0x000000000084F000-memory.dmp

memory/860-72-0x0000000000400000-0x000000000084F000-memory.dmp

memory/860-73-0x0000000000400000-0x000000000084F000-memory.dmp

memory/860-76-0x0000000000400000-0x000000000084F000-memory.dmp

memory/860-79-0x0000000000400000-0x000000000084F000-memory.dmp

memory/860-82-0x0000000000400000-0x000000000084F000-memory.dmp

memory/860-85-0x0000000000B20000-0x0000000000BC2000-memory.dmp

memory/860-89-0x0000000000400000-0x000000000084F000-memory.dmp

memory/860-92-0x0000000000400000-0x000000000084F000-memory.dmp

memory/860-95-0x0000000000400000-0x000000000084F000-memory.dmp

memory/860-98-0x0000000000400000-0x000000000084F000-memory.dmp

memory/860-101-0x0000000000400000-0x000000000084F000-memory.dmp

memory/860-104-0x0000000000400000-0x000000000084F000-memory.dmp