Malware Analysis Report

2024-11-15 04:58

Sample ID 240624-zqvctsvgpm
Target a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd
SHA256 a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd
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

a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd

Threat Level: Known bad

The file a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Detect Socks5Systemz Payload

Socks5Systemz

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

2024-06-24 20:55

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-24 20:55

Reported

2024-06-24 20:58

Platform

win10v2004-20240508-en

Max time kernel

147s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.exe"

Signatures

Detect Socks5Systemz Payload

Description Indicator Process Target
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
Destination IP 152.89.198.214 N/A N/A
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-SRS3S.tmp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3524 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.exe C:\Users\Admin\AppData\Local\Temp\is-SRS3S.tmp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.tmp
PID 3524 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.exe C:\Users\Admin\AppData\Local\Temp\is-SRS3S.tmp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.tmp
PID 3524 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.exe C:\Users\Admin\AppData\Local\Temp\is-SRS3S.tmp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.tmp
PID 2800 wrote to memory of 1208 N/A C:\Users\Admin\AppData\Local\Temp\is-SRS3S.tmp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 2800 wrote to memory of 1208 N/A C:\Users\Admin\AppData\Local\Temp\is-SRS3S.tmp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 2800 wrote to memory of 1208 N/A C:\Users\Admin\AppData\Local\Temp\is-SRS3S.tmp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 2800 wrote to memory of 1320 N/A C:\Users\Admin\AppData\Local\Temp\is-SRS3S.tmp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 2800 wrote to memory of 1320 N/A C:\Users\Admin\AppData\Local\Temp\is-SRS3S.tmp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 2800 wrote to memory of 1320 N/A C:\Users\Admin\AppData\Local\Temp\is-SRS3S.tmp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.exe

"C:\Users\Admin\AppData\Local\Temp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.exe"

C:\Users\Admin\AppData\Local\Temp\is-SRS3S.tmp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.tmp

"C:\Users\Admin\AppData\Local\Temp\is-SRS3S.tmp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.tmp" /SL5="$60064,4735694,54272,C:\Users\Admin\AppData\Local\Temp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.exe"

C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

"C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -i

C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

"C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -s

Network

Country Destination Domain Proto
US 52.111.229.43:443 tcp
HK 141.98.234.31:53 bfcewno.com udp
US 8.8.8.8:53 31.234.98.141.in-addr.arpa udp
RU 152.89.198.214:53 bfcewno.com udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 214.198.89.152.in-addr.arpa udp
LT 91.211.247.248:53 bfcewno.com udp
US 8.8.8.8:53 248.247.211.91.in-addr.arpa udp

Files

memory/3524-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3524-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-SRS3S.tmp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.tmp

MD5 fe8159895c04f572c0d4ff483fde0a81
SHA1 7b5cd749bb4ac1e5a57f1b11cd33857d5d2514ef
SHA256 36e684553464cedcab2f2766d44d135206af42c396379a98ac45e476517fb0e6
SHA512 ccaa6b1e6229f93fe5a087d1c3c711402f780521a403617ab12ee32844f3f1ea74e9f103cad76b0d1a25bee0cb2e22bb393c685844ae714777b6e3e54ce79392

C:\Users\Admin\AppData\Local\Temp\is-8R4MT.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

memory/2800-16-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

MD5 94b4d42bcf15988d59b2c3f38c3b158e
SHA1 595c58eb2ef0e1d8f869cd95f21b2adf0628e335
SHA256 0dd841df41a36a20210c5d24199578e423d91623691dd6875e3a2b08fcdecd91
SHA512 18d6132d8aa400a2ced3494a5007546beb86fa52c52eac65acf96ae3aae197a214dea936a292c284e58b0b77f27e5e11a90cd158834f7f5caadbb8f49974a6ef

memory/1208-59-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1208-60-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1208-65-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1208-63-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1320-68-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3524-69-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2800-70-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/1320-71-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1320-74-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1320-77-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1320-80-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1320-83-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1320-86-0x0000000000810000-0x00000000008B2000-memory.dmp

memory/1320-88-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1320-93-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1320-96-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1320-99-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1320-102-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1320-105-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1320-108-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1320-111-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1320-114-0x0000000000400000-0x00000000006C8000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-24 20:55

Reported

2024-06-24 20:58

Platform

win11-20240611-en

Max time kernel

146s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.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-R443E.tmp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2688 wrote to memory of 4668 N/A C:\Users\Admin\AppData\Local\Temp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.exe C:\Users\Admin\AppData\Local\Temp\is-R443E.tmp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.tmp
PID 2688 wrote to memory of 4668 N/A C:\Users\Admin\AppData\Local\Temp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.exe C:\Users\Admin\AppData\Local\Temp\is-R443E.tmp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.tmp
PID 2688 wrote to memory of 4668 N/A C:\Users\Admin\AppData\Local\Temp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.exe C:\Users\Admin\AppData\Local\Temp\is-R443E.tmp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.tmp
PID 4668 wrote to memory of 4560 N/A C:\Users\Admin\AppData\Local\Temp\is-R443E.tmp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4668 wrote to memory of 4560 N/A C:\Users\Admin\AppData\Local\Temp\is-R443E.tmp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4668 wrote to memory of 4560 N/A C:\Users\Admin\AppData\Local\Temp\is-R443E.tmp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4668 wrote to memory of 4652 N/A C:\Users\Admin\AppData\Local\Temp\is-R443E.tmp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4668 wrote to memory of 4652 N/A C:\Users\Admin\AppData\Local\Temp\is-R443E.tmp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4668 wrote to memory of 4652 N/A C:\Users\Admin\AppData\Local\Temp\is-R443E.tmp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.exe

"C:\Users\Admin\AppData\Local\Temp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.exe"

C:\Users\Admin\AppData\Local\Temp\is-R443E.tmp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.tmp

"C:\Users\Admin\AppData\Local\Temp\is-R443E.tmp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.tmp" /SL5="$70068,4735694,54272,C:\Users\Admin\AppData\Local\Temp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.exe"

C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

"C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -i

C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

"C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -s

Network

Country Destination Domain Proto
NL 52.111.243.30:443 tcp
RU 152.89.198.214:53 ezypdec.ua udp
TR 94.156.8.80:80 ezypdec.ua tcp
CH 176.10.111.158:2023 tcp

Files

memory/2688-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2688-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-R443E.tmp\a222d9ef359fbc9dabd07570d38d368086b6fd682a8b1590fc72a240f0f2fbbd.tmp

MD5 fe8159895c04f572c0d4ff483fde0a81
SHA1 7b5cd749bb4ac1e5a57f1b11cd33857d5d2514ef
SHA256 36e684553464cedcab2f2766d44d135206af42c396379a98ac45e476517fb0e6
SHA512 ccaa6b1e6229f93fe5a087d1c3c711402f780521a403617ab12ee32844f3f1ea74e9f103cad76b0d1a25bee0cb2e22bb393c685844ae714777b6e3e54ce79392

memory/4668-13-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-N18IF.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

MD5 94b4d42bcf15988d59b2c3f38c3b158e
SHA1 595c58eb2ef0e1d8f869cd95f21b2adf0628e335
SHA256 0dd841df41a36a20210c5d24199578e423d91623691dd6875e3a2b08fcdecd91
SHA512 18d6132d8aa400a2ced3494a5007546beb86fa52c52eac65acf96ae3aae197a214dea936a292c284e58b0b77f27e5e11a90cd158834f7f5caadbb8f49974a6ef

memory/4560-59-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4560-63-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4560-64-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4560-60-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4652-66-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4652-68-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2688-69-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4668-70-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/4652-71-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4652-74-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4652-75-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4652-78-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4652-81-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4652-84-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4652-87-0x00000000009E0000-0x0000000000A82000-memory.dmp

memory/4652-90-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4652-95-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4652-98-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4652-101-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4652-104-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4652-107-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4652-110-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4652-111-0x00000000009E0000-0x0000000000A82000-memory.dmp

memory/4652-112-0x00000000009E0000-0x0000000000A82000-memory.dmp

memory/4652-116-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4652-119-0x0000000000400000-0x00000000006C8000-memory.dmp