Malware Analysis Report

2024-11-15 05:01

Sample ID 240530-td2ngsdf2t
Target b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e
SHA256 b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e
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

b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e

Threat Level: Known bad

The file b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Socks5Systemz

Detect Socks5Systemz Payload

Loads dropped DLL

Unexpected DNS network traffic destination

Executes dropped EXE

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 15:57

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-30 15:57

Reported

2024-05-30 15:59

Platform

win10v2004-20240508-en

Max time kernel

142s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.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 91.211.247.248 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-6MIPE.tmp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4600 wrote to memory of 3128 N/A C:\Users\Admin\AppData\Local\Temp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.exe C:\Users\Admin\AppData\Local\Temp\is-6MIPE.tmp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.tmp
PID 4600 wrote to memory of 3128 N/A C:\Users\Admin\AppData\Local\Temp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.exe C:\Users\Admin\AppData\Local\Temp\is-6MIPE.tmp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.tmp
PID 4600 wrote to memory of 3128 N/A C:\Users\Admin\AppData\Local\Temp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.exe C:\Users\Admin\AppData\Local\Temp\is-6MIPE.tmp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.tmp
PID 3128 wrote to memory of 4896 N/A C:\Users\Admin\AppData\Local\Temp\is-6MIPE.tmp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 3128 wrote to memory of 4896 N/A C:\Users\Admin\AppData\Local\Temp\is-6MIPE.tmp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 3128 wrote to memory of 4896 N/A C:\Users\Admin\AppData\Local\Temp\is-6MIPE.tmp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 3128 wrote to memory of 1032 N/A C:\Users\Admin\AppData\Local\Temp\is-6MIPE.tmp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 3128 wrote to memory of 1032 N/A C:\Users\Admin\AppData\Local\Temp\is-6MIPE.tmp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 3128 wrote to memory of 1032 N/A C:\Users\Admin\AppData\Local\Temp\is-6MIPE.tmp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.exe

"C:\Users\Admin\AppData\Local\Temp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.exe"

C:\Users\Admin\AppData\Local\Temp\is-6MIPE.tmp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.tmp

"C:\Users\Admin\AppData\Local\Temp\is-6MIPE.tmp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.tmp" /SL5="$40216,5549854,54272,C:\Users\Admin\AppData\Local\Temp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.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 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
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 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
BE 88.221.83.250:443 www.bing.com tcp
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 8.8.8.8:53 250.83.221.88.in-addr.arpa udp
LT 91.211.247.248:53 bfoewhw.com udp
BG 79.110.49.184:80 bfoewhw.com tcp
NL 79.132.128.125:2023 tcp
US 8.8.8.8:53 248.247.211.91.in-addr.arpa udp
US 8.8.8.8:53 184.49.110.79.in-addr.arpa udp
US 8.8.8.8:53 125.128.132.79.in-addr.arpa udp

Files

memory/4600-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4600-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-6MIPE.tmp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.tmp

MD5 0618c738cf49fa5f045702c69585d459
SHA1 c71706644125d08fabf067cbe06030fb9795a2e8
SHA256 32d63dc7b012c5855667c4b809b98b42b2a841d38e5350fe7b603b46a74d484e
SHA512 bd042294fe9a09b01013d94211cf89ec4c7b1bfec384eb717a25ea864e2c9154ba082b5d9ccc9fd5e04d3b551f7bfdfea5d96d74056e5e27811a9cc4aaecc43a

memory/3128-12-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-1JJ06.tmp\_isetup\_isdecmp.dll

MD5 b6f11a0ab7715f570f45900a1fe84732
SHA1 77b1201e535445af5ea94c1b03c0a1c34d67a77b
SHA256 e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67
SHA512 78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

C:\Users\Admin\AppData\Local\Temp\is-1JJ06.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 01f2c69f3b8f2e5d86870189e3cda680
SHA1 a90a1a615bdd2e189315130b1d1ec7539dfb38d7
SHA256 37debc79084e3704939fed00ba07088b43bf257a225f5ac729f2093ed36a0f93
SHA512 9f9064b51a2fde4c74052af80db2a2fda91aec61420bf8900d9a02085ee93c7eaac1d80d5d5a63dc094122fabcdc30e71808391d2e11e93f450e8de3449cdfd4

memory/4896-65-0x0000000000400000-0x0000000000745000-memory.dmp

memory/4896-66-0x0000000000400000-0x0000000000745000-memory.dmp

memory/4896-69-0x0000000000400000-0x0000000000745000-memory.dmp

memory/4896-71-0x0000000000400000-0x0000000000745000-memory.dmp

memory/1032-74-0x0000000000400000-0x0000000000745000-memory.dmp

memory/4600-75-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3128-76-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/1032-77-0x0000000000400000-0x0000000000745000-memory.dmp

memory/1032-80-0x0000000000400000-0x0000000000745000-memory.dmp

memory/1032-83-0x0000000000400000-0x0000000000745000-memory.dmp

memory/1032-86-0x0000000000400000-0x0000000000745000-memory.dmp

memory/1032-89-0x0000000000400000-0x0000000000745000-memory.dmp

memory/1032-94-0x0000000000400000-0x0000000000745000-memory.dmp

memory/1032-93-0x0000000000A40000-0x0000000000AE2000-memory.dmp

memory/1032-100-0x0000000000400000-0x0000000000745000-memory.dmp

memory/1032-103-0x0000000000400000-0x0000000000745000-memory.dmp

memory/1032-106-0x0000000000400000-0x0000000000745000-memory.dmp

memory/1032-109-0x0000000000400000-0x0000000000745000-memory.dmp

memory/1032-112-0x0000000000400000-0x0000000000745000-memory.dmp

memory/1032-115-0x0000000000400000-0x0000000000745000-memory.dmp

memory/1032-116-0x0000000000A40000-0x0000000000AE2000-memory.dmp

memory/1032-117-0x0000000000A40000-0x0000000000AE2000-memory.dmp

memory/1032-121-0x0000000000400000-0x0000000000745000-memory.dmp

memory/1032-124-0x0000000000400000-0x0000000000745000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-30 15:57

Reported

2024-05-30 15:59

Platform

win11-20240508-en

Max time kernel

142s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.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 91.211.247.248 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-9DLI9.tmp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4408 wrote to memory of 4696 N/A C:\Users\Admin\AppData\Local\Temp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.exe C:\Users\Admin\AppData\Local\Temp\is-9DLI9.tmp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.tmp
PID 4408 wrote to memory of 4696 N/A C:\Users\Admin\AppData\Local\Temp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.exe C:\Users\Admin\AppData\Local\Temp\is-9DLI9.tmp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.tmp
PID 4408 wrote to memory of 4696 N/A C:\Users\Admin\AppData\Local\Temp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.exe C:\Users\Admin\AppData\Local\Temp\is-9DLI9.tmp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.tmp
PID 4696 wrote to memory of 2156 N/A C:\Users\Admin\AppData\Local\Temp\is-9DLI9.tmp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 4696 wrote to memory of 2156 N/A C:\Users\Admin\AppData\Local\Temp\is-9DLI9.tmp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 4696 wrote to memory of 2156 N/A C:\Users\Admin\AppData\Local\Temp\is-9DLI9.tmp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 4696 wrote to memory of 3068 N/A C:\Users\Admin\AppData\Local\Temp\is-9DLI9.tmp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 4696 wrote to memory of 3068 N/A C:\Users\Admin\AppData\Local\Temp\is-9DLI9.tmp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 4696 wrote to memory of 3068 N/A C:\Users\Admin\AppData\Local\Temp\is-9DLI9.tmp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.exe

"C:\Users\Admin\AppData\Local\Temp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.exe"

C:\Users\Admin\AppData\Local\Temp\is-9DLI9.tmp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.tmp

"C:\Users\Admin\AppData\Local\Temp\is-9DLI9.tmp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.tmp" /SL5="$70250,5549854,54272,C:\Users\Admin\AppData\Local\Temp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.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
LT 91.211.247.248:53 csuidra.net udp
BG 79.110.49.184:80 csuidra.net tcp
EE 194.76.227.81:2023 tcp
US 8.8.8.8:53 81.227.76.194.in-addr.arpa udp
US 8.8.8.8:53 184.49.110.79.in-addr.arpa udp

Files

memory/4408-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4408-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-9DLI9.tmp\b3e9e9c375884de466aa2ae8b8119999ff7b23b46863b6ecf1c9a47be166ee3e.tmp

MD5 0618c738cf49fa5f045702c69585d459
SHA1 c71706644125d08fabf067cbe06030fb9795a2e8
SHA256 32d63dc7b012c5855667c4b809b98b42b2a841d38e5350fe7b603b46a74d484e
SHA512 bd042294fe9a09b01013d94211cf89ec4c7b1bfec384eb717a25ea864e2c9154ba082b5d9ccc9fd5e04d3b551f7bfdfea5d96d74056e5e27811a9cc4aaecc43a

memory/4696-12-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-66M1G.tmp\_isetup\_isdecmp.dll

MD5 b6f11a0ab7715f570f45900a1fe84732
SHA1 77b1201e535445af5ea94c1b03c0a1c34d67a77b
SHA256 e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67
SHA512 78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

C:\Users\Admin\AppData\Local\Temp\is-66M1G.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 01f2c69f3b8f2e5d86870189e3cda680
SHA1 a90a1a615bdd2e189315130b1d1ec7539dfb38d7
SHA256 37debc79084e3704939fed00ba07088b43bf257a225f5ac729f2093ed36a0f93
SHA512 9f9064b51a2fde4c74052af80db2a2fda91aec61420bf8900d9a02085ee93c7eaac1d80d5d5a63dc094122fabcdc30e71808391d2e11e93f450e8de3449cdfd4

memory/2156-68-0x0000000000400000-0x0000000000745000-memory.dmp

memory/2156-70-0x0000000000400000-0x0000000000745000-memory.dmp

memory/2156-69-0x0000000000400000-0x000000000047F000-memory.dmp

memory/3068-72-0x0000000000400000-0x0000000000745000-memory.dmp

memory/2156-65-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3068-74-0x0000000000400000-0x0000000000745000-memory.dmp

memory/4408-75-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4696-76-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/3068-77-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3068-80-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3068-81-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3068-84-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3068-87-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3068-90-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3068-93-0x0000000000A70000-0x0000000000B12000-memory.dmp

memory/3068-96-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3068-101-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3068-104-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3068-105-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3068-108-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3068-111-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3068-114-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3068-117-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3068-118-0x0000000000A70000-0x0000000000B12000-memory.dmp

memory/3068-119-0x0000000000A70000-0x0000000000B12000-memory.dmp

memory/3068-123-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3068-126-0x0000000000400000-0x0000000000745000-memory.dmp