Malware Analysis Report

2024-11-15 05:01

Sample ID 240530-sblc2sdd69
Target eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d
SHA256 eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d
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

eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d

Threat Level: Known bad

The file eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Socks5Systemz

Detect Socks5Systemz Payload

Loads dropped DLL

Executes dropped EXE

Unexpected DNS network traffic destination

Checks installed software on the system

Enumerates physical storage devices

Unsigned PE

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-30 14:57

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-30 14:57

Reported

2024-05-30 14:59

Platform

win10v2004-20240426-en

Max time kernel

142s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.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 FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-NCCF4.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1100 wrote to memory of 4596 N/A C:\Users\Admin\AppData\Local\Temp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.exe C:\Users\Admin\AppData\Local\Temp\is-NCCF4.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp
PID 1100 wrote to memory of 4596 N/A C:\Users\Admin\AppData\Local\Temp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.exe C:\Users\Admin\AppData\Local\Temp\is-NCCF4.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp
PID 1100 wrote to memory of 4596 N/A C:\Users\Admin\AppData\Local\Temp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.exe C:\Users\Admin\AppData\Local\Temp\is-NCCF4.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp
PID 4596 wrote to memory of 2356 N/A C:\Users\Admin\AppData\Local\Temp\is-NCCF4.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 4596 wrote to memory of 2356 N/A C:\Users\Admin\AppData\Local\Temp\is-NCCF4.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 4596 wrote to memory of 2356 N/A C:\Users\Admin\AppData\Local\Temp\is-NCCF4.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 4596 wrote to memory of 4844 N/A C:\Users\Admin\AppData\Local\Temp\is-NCCF4.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 4596 wrote to memory of 4844 N/A C:\Users\Admin\AppData\Local\Temp\is-NCCF4.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 4596 wrote to memory of 4844 N/A C:\Users\Admin\AppData\Local\Temp\is-NCCF4.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.exe

"C:\Users\Admin\AppData\Local\Temp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.exe"

C:\Users\Admin\AppData\Local\Temp\is-NCCF4.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp

"C:\Users\Admin\AppData\Local\Temp\is-NCCF4.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp" /SL5="$600EA,4890189,54272,C:\Users\Admin\AppData\Local\Temp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.exe"

C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

"C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -i

C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

"C:\Users\Admin\AppData\Local\5K Player\5kplayer32.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 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
HK 141.98.234.31:53 bmsjbut.com udp
BG 79.110.49.184:80 bmsjbut.com tcp
RO 45.11.181.104:2023 tcp
US 8.8.8.8:53 31.234.98.141.in-addr.arpa udp
US 8.8.8.8:53 184.49.110.79.in-addr.arpa udp
US 8.8.8.8:53 104.181.11.45.in-addr.arpa udp

Files

memory/1100-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1100-3-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-NCCF4.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp

MD5 281b7192d7fae9f9f4f11ad30842bfaa
SHA1 35ca07cc4d95c2132eb31152974417ba96e51d43
SHA256 fca779fea2596da2a6f434cc9df9e6b44d1c176668b5c80bd76c00e91e478a4c
SHA512 a63c9a298974c93dc4eb02e360d45db077f16a6921ac42bedb59a9fe46156fb50f46cb109d97ded3039300d3e38f4370bda0665b1013b3e662c6aec927635ef2

memory/4596-10-0x0000000000400000-0x00000000004BA000-memory.dmp

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

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

MD5 b137840dd7a71e3a38255b8c4ca232e4
SHA1 c4d87a58b567a4108c39a74b0d5bd65ce58f9ff3
SHA256 812878079e40b2062924109366eca6166da61970e0b0534f31fbe0dfc6b797f4
SHA512 af49ca9a1dfc5fbf10515ba5d1046114c4294d00c75d677b468cf691718557d009ff21f725816923fdf7225efdd525e5d7530f6e34102cac18a0f3de9ba9b7f5

memory/2356-59-0x0000000000400000-0x000000000076D000-memory.dmp

memory/2356-63-0x0000000000400000-0x000000000076D000-memory.dmp

memory/2356-65-0x0000000000400000-0x000000000076D000-memory.dmp

memory/4844-67-0x0000000000400000-0x000000000076D000-memory.dmp

memory/2356-60-0x0000000000400000-0x000000000076D000-memory.dmp

memory/4844-69-0x0000000000400000-0x000000000076D000-memory.dmp

memory/1100-70-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4596-71-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/4844-72-0x0000000000400000-0x000000000076D000-memory.dmp

memory/4844-75-0x0000000000400000-0x000000000076D000-memory.dmp

memory/4844-76-0x0000000000400000-0x000000000076D000-memory.dmp

memory/4844-79-0x0000000000400000-0x000000000076D000-memory.dmp

memory/4844-82-0x0000000000400000-0x000000000076D000-memory.dmp

memory/4844-85-0x0000000000400000-0x000000000076D000-memory.dmp

memory/4844-88-0x0000000000400000-0x000000000076D000-memory.dmp

memory/4844-89-0x0000000000A70000-0x0000000000B12000-memory.dmp

memory/4844-95-0x0000000000400000-0x000000000076D000-memory.dmp

memory/4844-98-0x0000000000400000-0x000000000076D000-memory.dmp

memory/4844-101-0x0000000000400000-0x000000000076D000-memory.dmp

memory/4844-104-0x0000000000400000-0x000000000076D000-memory.dmp

memory/4844-107-0x0000000000400000-0x000000000076D000-memory.dmp

memory/4844-110-0x0000000000400000-0x000000000076D000-memory.dmp

memory/4844-111-0x0000000000A70000-0x0000000000B12000-memory.dmp

memory/4844-112-0x0000000000A70000-0x0000000000B12000-memory.dmp

memory/4844-116-0x0000000000400000-0x000000000076D000-memory.dmp

memory/4844-119-0x0000000000400000-0x000000000076D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-30 14:57

Reported

2024-05-30 14:59

Platform

win11-20240508-en

Max time kernel

146s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.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 FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-6A42S.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3112 wrote to memory of 4336 N/A C:\Users\Admin\AppData\Local\Temp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.exe C:\Users\Admin\AppData\Local\Temp\is-6A42S.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp
PID 3112 wrote to memory of 4336 N/A C:\Users\Admin\AppData\Local\Temp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.exe C:\Users\Admin\AppData\Local\Temp\is-6A42S.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp
PID 3112 wrote to memory of 4336 N/A C:\Users\Admin\AppData\Local\Temp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.exe C:\Users\Admin\AppData\Local\Temp\is-6A42S.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp
PID 4336 wrote to memory of 5032 N/A C:\Users\Admin\AppData\Local\Temp\is-6A42S.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 4336 wrote to memory of 5032 N/A C:\Users\Admin\AppData\Local\Temp\is-6A42S.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 4336 wrote to memory of 5032 N/A C:\Users\Admin\AppData\Local\Temp\is-6A42S.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 4336 wrote to memory of 2136 N/A C:\Users\Admin\AppData\Local\Temp\is-6A42S.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 4336 wrote to memory of 2136 N/A C:\Users\Admin\AppData\Local\Temp\is-6A42S.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 4336 wrote to memory of 2136 N/A C:\Users\Admin\AppData\Local\Temp\is-6A42S.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.exe

"C:\Users\Admin\AppData\Local\Temp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.exe"

C:\Users\Admin\AppData\Local\Temp\is-6A42S.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp

"C:\Users\Admin\AppData\Local\Temp\is-6A42S.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp" /SL5="$501B0,4890189,54272,C:\Users\Admin\AppData\Local\Temp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.exe"

C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

"C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -i

C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

"C:\Users\Admin\AppData\Local\5K Player\5kplayer32.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 dtqdajb.info udp
BG 79.110.49.184:80 dtqdajb.info tcp
RO 45.11.181.104:2023 tcp
US 8.8.8.8:53 104.181.11.45.in-addr.arpa udp

Files

memory/3112-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3112-3-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-6A42S.tmp\eb378956585ba3a0ea528c936570a539a8ca6d9f4256fcc39c6c01d8836f7b7d.tmp

MD5 281b7192d7fae9f9f4f11ad30842bfaa
SHA1 35ca07cc4d95c2132eb31152974417ba96e51d43
SHA256 fca779fea2596da2a6f434cc9df9e6b44d1c176668b5c80bd76c00e91e478a4c
SHA512 a63c9a298974c93dc4eb02e360d45db077f16a6921ac42bedb59a9fe46156fb50f46cb109d97ded3039300d3e38f4370bda0665b1013b3e662c6aec927635ef2

C:\Users\Admin\AppData\Local\Temp\is-JSSE9.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

memory/4336-16-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

MD5 b137840dd7a71e3a38255b8c4ca232e4
SHA1 c4d87a58b567a4108c39a74b0d5bd65ce58f9ff3
SHA256 812878079e40b2062924109366eca6166da61970e0b0534f31fbe0dfc6b797f4
SHA512 af49ca9a1dfc5fbf10515ba5d1046114c4294d00c75d677b468cf691718557d009ff21f725816923fdf7225efdd525e5d7530f6e34102cac18a0f3de9ba9b7f5

memory/5032-59-0x0000000000400000-0x000000000076D000-memory.dmp

memory/5032-63-0x0000000000400000-0x000000000047F000-memory.dmp

memory/5032-64-0x0000000000400000-0x000000000076D000-memory.dmp

memory/5032-62-0x0000000000400000-0x000000000076D000-memory.dmp

memory/2136-67-0x0000000000400000-0x000000000076D000-memory.dmp

memory/3112-68-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4336-69-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/2136-70-0x0000000000400000-0x000000000076D000-memory.dmp

memory/5032-71-0x0000000000400000-0x000000000076D000-memory.dmp

memory/2136-74-0x0000000000400000-0x000000000076D000-memory.dmp

memory/2136-75-0x0000000000400000-0x000000000076D000-memory.dmp

memory/2136-78-0x0000000000400000-0x000000000076D000-memory.dmp

memory/2136-81-0x0000000000400000-0x000000000076D000-memory.dmp

memory/2136-84-0x0000000000400000-0x000000000076D000-memory.dmp

memory/2136-87-0x0000000000950000-0x00000000009F2000-memory.dmp

memory/2136-90-0x0000000000400000-0x000000000076D000-memory.dmp

memory/2136-95-0x0000000000400000-0x000000000076D000-memory.dmp

memory/2136-98-0x0000000000400000-0x000000000076D000-memory.dmp

memory/2136-101-0x0000000000400000-0x000000000076D000-memory.dmp

memory/2136-104-0x0000000000400000-0x000000000076D000-memory.dmp

memory/2136-107-0x0000000000400000-0x000000000076D000-memory.dmp

memory/2136-110-0x0000000000400000-0x000000000076D000-memory.dmp

memory/2136-111-0x0000000000950000-0x00000000009F2000-memory.dmp

memory/2136-112-0x0000000000950000-0x00000000009F2000-memory.dmp

memory/2136-116-0x0000000000400000-0x000000000076D000-memory.dmp

memory/2136-119-0x0000000000400000-0x000000000076D000-memory.dmp