Malware Analysis Report

2024-11-15 04:58

Sample ID 240624-td2y9ateqk
Target 8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89
SHA256 8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89
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

8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89

Threat Level: Known bad

The file 8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89 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

Unsigned PE

Enumerates physical storage devices

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-24 15:57

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-24 15:57

Reported

2024-06-24 15:59

Platform

win10v2004-20240611-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.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-0K688.tmp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2952 wrote to memory of 3136 N/A C:\Users\Admin\AppData\Local\Temp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.exe C:\Users\Admin\AppData\Local\Temp\is-0K688.tmp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.tmp
PID 2952 wrote to memory of 3136 N/A C:\Users\Admin\AppData\Local\Temp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.exe C:\Users\Admin\AppData\Local\Temp\is-0K688.tmp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.tmp
PID 2952 wrote to memory of 3136 N/A C:\Users\Admin\AppData\Local\Temp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.exe C:\Users\Admin\AppData\Local\Temp\is-0K688.tmp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.tmp
PID 3136 wrote to memory of 4860 N/A C:\Users\Admin\AppData\Local\Temp\is-0K688.tmp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 3136 wrote to memory of 4860 N/A C:\Users\Admin\AppData\Local\Temp\is-0K688.tmp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 3136 wrote to memory of 4860 N/A C:\Users\Admin\AppData\Local\Temp\is-0K688.tmp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 3136 wrote to memory of 3832 N/A C:\Users\Admin\AppData\Local\Temp\is-0K688.tmp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 3136 wrote to memory of 3832 N/A C:\Users\Admin\AppData\Local\Temp\is-0K688.tmp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 3136 wrote to memory of 3832 N/A C:\Users\Admin\AppData\Local\Temp\is-0K688.tmp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.exe

"C:\Users\Admin\AppData\Local\Temp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.exe"

C:\Users\Admin\AppData\Local\Temp\is-0K688.tmp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.tmp

"C:\Users\Admin\AppData\Local\Temp\is-0K688.tmp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.tmp" /SL5="$B0054,4792619,54272,C:\Users\Admin\AppData\Local\Temp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.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 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 80.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
NL 23.62.61.171:443 www.bing.com tcp
US 8.8.8.8:53 171.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
RU 152.89.198.214:53 aqmevce.ru udp
TR 94.156.8.80:80 aqmevce.ru tcp
FR 195.154.185.134:2023 tcp
US 8.8.8.8:53 214.198.89.152.in-addr.arpa udp
US 8.8.8.8:53 80.8.156.94.in-addr.arpa udp
US 8.8.8.8:53 134.185.154.195.in-addr.arpa udp
US 8.8.8.8:53 31.73.42.20.in-addr.arpa udp

Files

memory/2952-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2952-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-0K688.tmp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.tmp

MD5 f4de7fd9355f0ff0b76ceb518c1f65e9
SHA1 3d16d63a70693968a69e8c62729aa27084378e9c
SHA256 57512818b134f1535e4de667e56cd6089f492addc48e63765d066cfa1862e217
SHA512 23bf83930357f6904e773a98932bf21f06dd826391f3c3845aa2e82f2a7c1d464e932159ef9a25e5589e7f1624f4a592b39449b59fccbdc94d53640a6b2e1390

memory/3136-14-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-CAUB7.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 c934a62b10b332230840c698dda71267
SHA1 3a7761f6a5a20eb617d1ff4b95b2ddc48df2106f
SHA256 e74f229bace9b9c059ef9cede2894e57a2bbfd0a6910ec27a9b21761d8844ad5
SHA512 07c0ff410dc32fa64cc8126d7fb77529533a9404b7f2d3c622d939ed754521ea8156ec115a19605746d9df1a51ae07116dd06f1006e045420048b5b73922bef4

memory/4860-59-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4860-60-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4860-61-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4860-64-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3832-66-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2952-68-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3136-69-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/3832-70-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3832-73-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3832-76-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3832-79-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3832-82-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3832-85-0x0000000000930000-0x00000000009D2000-memory.dmp

memory/3832-87-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3832-92-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3832-95-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3832-98-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3832-101-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3832-104-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3832-107-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3832-108-0x0000000000930000-0x00000000009D2000-memory.dmp

memory/3832-109-0x0000000000930000-0x00000000009D2000-memory.dmp

memory/3832-113-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3832-116-0x0000000000400000-0x00000000006C8000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-24 15:57

Reported

2024-06-24 15:59

Platform

win11-20240419-en

Max time kernel

148s

Max time network

157s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.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 152.89.198.214 N/A N/A
Destination IP 91.211.247.248 N/A N/A
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-UM48M.tmp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3396 wrote to memory of 4704 N/A C:\Users\Admin\AppData\Local\Temp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.exe C:\Users\Admin\AppData\Local\Temp\is-UM48M.tmp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.tmp
PID 3396 wrote to memory of 4704 N/A C:\Users\Admin\AppData\Local\Temp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.exe C:\Users\Admin\AppData\Local\Temp\is-UM48M.tmp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.tmp
PID 3396 wrote to memory of 4704 N/A C:\Users\Admin\AppData\Local\Temp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.exe C:\Users\Admin\AppData\Local\Temp\is-UM48M.tmp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.tmp
PID 4704 wrote to memory of 4592 N/A C:\Users\Admin\AppData\Local\Temp\is-UM48M.tmp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4704 wrote to memory of 4592 N/A C:\Users\Admin\AppData\Local\Temp\is-UM48M.tmp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4704 wrote to memory of 4592 N/A C:\Users\Admin\AppData\Local\Temp\is-UM48M.tmp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4704 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\is-UM48M.tmp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4704 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\is-UM48M.tmp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4704 wrote to memory of 2728 N/A C:\Users\Admin\AppData\Local\Temp\is-UM48M.tmp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.exe

"C:\Users\Admin\AppData\Local\Temp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.exe"

C:\Users\Admin\AppData\Local\Temp\is-UM48M.tmp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.tmp

"C:\Users\Admin\AppData\Local\Temp\is-UM48M.tmp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.tmp" /SL5="$40212,4792619,54272,C:\Users\Admin\AppData\Local\Temp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.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 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
HK 141.98.234.31:53 aqscplh.ru udp
US 8.8.8.8:53 31.234.98.141.in-addr.arpa udp
RU 152.89.198.214:53 aqscplh.ru udp
US 8.8.8.8:53 214.198.89.152.in-addr.arpa udp
LT 91.211.247.248:53 aqscplh.ru udp
US 8.8.8.8:53 248.247.211.91.in-addr.arpa udp

Files

memory/3396-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3396-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-UM48M.tmp\8f6ebc99b75a5fa569bfd49f51733e1be7f3e3c020c0b37303d08f3f122b8c89.tmp

MD5 f4de7fd9355f0ff0b76ceb518c1f65e9
SHA1 3d16d63a70693968a69e8c62729aa27084378e9c
SHA256 57512818b134f1535e4de667e56cd6089f492addc48e63765d066cfa1862e217
SHA512 23bf83930357f6904e773a98932bf21f06dd826391f3c3845aa2e82f2a7c1d464e932159ef9a25e5589e7f1624f4a592b39449b59fccbdc94d53640a6b2e1390

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

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

memory/4704-16-0x0000000000400000-0x00000000004BA000-memory.dmp

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

MD5 c934a62b10b332230840c698dda71267
SHA1 3a7761f6a5a20eb617d1ff4b95b2ddc48df2106f
SHA256 e74f229bace9b9c059ef9cede2894e57a2bbfd0a6910ec27a9b21761d8844ad5
SHA512 07c0ff410dc32fa64cc8126d7fb77529533a9404b7f2d3c622d939ed754521ea8156ec115a19605746d9df1a51ae07116dd06f1006e045420048b5b73922bef4

memory/4592-59-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4592-65-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2728-67-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4592-60-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4592-63-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2728-69-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3396-70-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4704-71-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/2728-72-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2728-76-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2728-75-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2728-79-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2728-82-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2728-85-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2728-88-0x0000000000A20000-0x0000000000AC2000-memory.dmp

memory/2728-91-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2728-96-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2728-99-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2728-102-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2728-105-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2728-108-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2728-111-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2728-114-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2728-117-0x0000000000400000-0x00000000006C8000-memory.dmp