Malware Analysis Report

2024-11-15 05:01

Sample ID 240530-szk27aec75
Target 492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1
SHA256 492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1
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

492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1

Threat Level: Known bad

The file 492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1 was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Detect Socks5Systemz Payload

Socks5Systemz

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 15:33

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-30 15:33

Reported

2024-05-30 15:36

Platform

win10v2004-20240508-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.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-S88V5.tmp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1316 wrote to memory of 3272 N/A C:\Users\Admin\AppData\Local\Temp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.exe C:\Users\Admin\AppData\Local\Temp\is-S88V5.tmp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.tmp
PID 1316 wrote to memory of 3272 N/A C:\Users\Admin\AppData\Local\Temp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.exe C:\Users\Admin\AppData\Local\Temp\is-S88V5.tmp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.tmp
PID 1316 wrote to memory of 3272 N/A C:\Users\Admin\AppData\Local\Temp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.exe C:\Users\Admin\AppData\Local\Temp\is-S88V5.tmp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.tmp
PID 3272 wrote to memory of 1432 N/A C:\Users\Admin\AppData\Local\Temp\is-S88V5.tmp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 3272 wrote to memory of 1432 N/A C:\Users\Admin\AppData\Local\Temp\is-S88V5.tmp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 3272 wrote to memory of 1432 N/A C:\Users\Admin\AppData\Local\Temp\is-S88V5.tmp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 3272 wrote to memory of 4040 N/A C:\Users\Admin\AppData\Local\Temp\is-S88V5.tmp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 3272 wrote to memory of 4040 N/A C:\Users\Admin\AppData\Local\Temp\is-S88V5.tmp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 3272 wrote to memory of 4040 N/A C:\Users\Admin\AppData\Local\Temp\is-S88V5.tmp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.exe

"C:\Users\Admin\AppData\Local\Temp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.exe"

C:\Users\Admin\AppData\Local\Temp\is-S88V5.tmp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.tmp

"C:\Users\Admin\AppData\Local\Temp\is-S88V5.tmp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.tmp" /SL5="$501C6,4693505,54272,C:\Users\Admin\AppData\Local\Temp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.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 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 138.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
BE 2.17.107.123:443 www.bing.com tcp
US 8.8.8.8:53 123.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 57.15.31.184.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 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
HK 141.98.234.31:53 dtsnwcx.info udp
US 8.8.8.8:53 31.234.98.141.in-addr.arpa udp
BG 79.110.49.184:80 dtsnwcx.info tcp
NL 79.132.128.125:2023 tcp
US 8.8.8.8:53 125.128.132.79.in-addr.arpa udp
US 8.8.8.8:53 184.49.110.79.in-addr.arpa udp
US 8.8.8.8:53 89.65.42.20.in-addr.arpa udp

Files

memory/1316-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1316-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-S88V5.tmp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.tmp

MD5 281b7192d7fae9f9f4f11ad30842bfaa
SHA1 35ca07cc4d95c2132eb31152974417ba96e51d43
SHA256 fca779fea2596da2a6f434cc9df9e6b44d1c176668b5c80bd76c00e91e478a4c
SHA512 a63c9a298974c93dc4eb02e360d45db077f16a6921ac42bedb59a9fe46156fb50f46cb109d97ded3039300d3e38f4370bda0665b1013b3e662c6aec927635ef2

memory/3272-10-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-O5DE5.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 fb3f6cbae323b70b6e1e075b59f4d1d9
SHA1 c446f8d464ce0cadd4e1c6e8db00b2eef69fa6a2
SHA256 c93cd0bb3b4f8a8bfc9a056cffae6abbec2f8952026828e80569893a752ab43c
SHA512 95e4132dbcfbd022df2c2a958f438c1afa167b3115ad9dbd20e77fbaa846b1e4de87a2885ce3bdf65f06958aa399f38ae05f5e7c0d9f6fd575d46249fd16ac5f

memory/1432-60-0x0000000000400000-0x000000000073F000-memory.dmp

memory/1432-61-0x0000000000400000-0x000000000073F000-memory.dmp

memory/1432-59-0x0000000000400000-0x000000000073F000-memory.dmp

memory/1432-64-0x0000000000400000-0x000000000073F000-memory.dmp

memory/4040-66-0x0000000000400000-0x000000000073F000-memory.dmp

memory/4040-68-0x0000000000400000-0x000000000073F000-memory.dmp

memory/1316-69-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3272-70-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/4040-71-0x0000000000400000-0x000000000073F000-memory.dmp

memory/4040-74-0x0000000000400000-0x000000000073F000-memory.dmp

memory/4040-75-0x0000000000400000-0x000000000073F000-memory.dmp

memory/4040-78-0x0000000000400000-0x000000000073F000-memory.dmp

memory/4040-81-0x0000000000400000-0x000000000073F000-memory.dmp

memory/4040-84-0x0000000000400000-0x000000000073F000-memory.dmp

memory/4040-89-0x0000000000400000-0x000000000073F000-memory.dmp

memory/4040-88-0x00000000008E0000-0x0000000000982000-memory.dmp

memory/4040-95-0x0000000000400000-0x000000000073F000-memory.dmp

memory/4040-98-0x0000000000400000-0x000000000073F000-memory.dmp

memory/4040-99-0x0000000000400000-0x000000000073F000-memory.dmp

memory/4040-102-0x0000000000400000-0x000000000073F000-memory.dmp

memory/4040-105-0x0000000000400000-0x000000000073F000-memory.dmp

memory/4040-108-0x0000000000400000-0x000000000073F000-memory.dmp

memory/4040-111-0x0000000000400000-0x000000000073F000-memory.dmp

memory/4040-113-0x00000000008E0000-0x0000000000982000-memory.dmp

memory/4040-112-0x00000000008E0000-0x0000000000982000-memory.dmp

memory/4040-117-0x0000000000400000-0x000000000073F000-memory.dmp

memory/4040-120-0x0000000000400000-0x000000000073F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-30 15:33

Reported

2024-05-30 15:36

Platform

win11-20240508-en

Max time kernel

141s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.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 152.89.198.214 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-84BIR.tmp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2364 wrote to memory of 2432 N/A C:\Users\Admin\AppData\Local\Temp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.exe C:\Users\Admin\AppData\Local\Temp\is-84BIR.tmp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.tmp
PID 2364 wrote to memory of 2432 N/A C:\Users\Admin\AppData\Local\Temp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.exe C:\Users\Admin\AppData\Local\Temp\is-84BIR.tmp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.tmp
PID 2364 wrote to memory of 2432 N/A C:\Users\Admin\AppData\Local\Temp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.exe C:\Users\Admin\AppData\Local\Temp\is-84BIR.tmp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.tmp
PID 2432 wrote to memory of 4544 N/A C:\Users\Admin\AppData\Local\Temp\is-84BIR.tmp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 2432 wrote to memory of 4544 N/A C:\Users\Admin\AppData\Local\Temp\is-84BIR.tmp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 2432 wrote to memory of 4544 N/A C:\Users\Admin\AppData\Local\Temp\is-84BIR.tmp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 2432 wrote to memory of 2580 N/A C:\Users\Admin\AppData\Local\Temp\is-84BIR.tmp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 2432 wrote to memory of 2580 N/A C:\Users\Admin\AppData\Local\Temp\is-84BIR.tmp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 2432 wrote to memory of 2580 N/A C:\Users\Admin\AppData\Local\Temp\is-84BIR.tmp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.exe

"C:\Users\Admin\AppData\Local\Temp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.exe"

C:\Users\Admin\AppData\Local\Temp\is-84BIR.tmp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.tmp

"C:\Users\Admin\AppData\Local\Temp\is-84BIR.tmp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.tmp" /SL5="$40242,4693505,54272,C:\Users\Admin\AppData\Local\Temp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.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
IE 52.111.236.21:443 tcp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
RU 152.89.198.214:53 bwgyvra.com udp
BG 79.110.49.184:80 bwgyvra.com tcp
NL 79.132.128.125:2023 tcp
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/2364-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2364-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-84BIR.tmp\492173b2e7ac0be1ddc6550fa2540c68fdb2fd6739de1eea9c766510fb0322a1.tmp

MD5 281b7192d7fae9f9f4f11ad30842bfaa
SHA1 35ca07cc4d95c2132eb31152974417ba96e51d43
SHA256 fca779fea2596da2a6f434cc9df9e6b44d1c176668b5c80bd76c00e91e478a4c
SHA512 a63c9a298974c93dc4eb02e360d45db077f16a6921ac42bedb59a9fe46156fb50f46cb109d97ded3039300d3e38f4370bda0665b1013b3e662c6aec927635ef2

memory/2432-7-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-KMVM1.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 fb3f6cbae323b70b6e1e075b59f4d1d9
SHA1 c446f8d464ce0cadd4e1c6e8db00b2eef69fa6a2
SHA256 c93cd0bb3b4f8a8bfc9a056cffae6abbec2f8952026828e80569893a752ab43c
SHA512 95e4132dbcfbd022df2c2a958f438c1afa167b3115ad9dbd20e77fbaa846b1e4de87a2885ce3bdf65f06958aa399f38ae05f5e7c0d9f6fd575d46249fd16ac5f

memory/4544-59-0x0000000000400000-0x000000000073F000-memory.dmp

memory/4544-61-0x0000000000400000-0x000000000073F000-memory.dmp

memory/4544-64-0x0000000000400000-0x000000000073F000-memory.dmp

memory/4544-65-0x0000000000400000-0x000000000073F000-memory.dmp

memory/2580-68-0x0000000000400000-0x000000000073F000-memory.dmp

memory/2364-69-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2432-70-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/2580-71-0x0000000000400000-0x000000000073F000-memory.dmp

memory/2580-74-0x0000000000400000-0x000000000073F000-memory.dmp

memory/2580-77-0x0000000000400000-0x000000000073F000-memory.dmp

memory/2580-80-0x0000000000400000-0x000000000073F000-memory.dmp

memory/2580-83-0x0000000000400000-0x000000000073F000-memory.dmp

memory/2580-86-0x0000000000940000-0x00000000009E2000-memory.dmp

memory/2580-88-0x0000000000400000-0x000000000073F000-memory.dmp

memory/2580-94-0x0000000000400000-0x000000000073F000-memory.dmp

memory/2580-97-0x0000000000400000-0x000000000073F000-memory.dmp

memory/2580-100-0x0000000000400000-0x000000000073F000-memory.dmp

memory/2580-103-0x0000000000400000-0x000000000073F000-memory.dmp

memory/2580-106-0x0000000000400000-0x000000000073F000-memory.dmp

memory/2580-109-0x0000000000400000-0x000000000073F000-memory.dmp

memory/2580-110-0x0000000000940000-0x00000000009E2000-memory.dmp

memory/2580-111-0x0000000000940000-0x00000000009E2000-memory.dmp

memory/2580-115-0x0000000000400000-0x000000000073F000-memory.dmp

memory/2580-118-0x0000000000400000-0x000000000073F000-memory.dmp