Malware Analysis Report

2024-10-10 10:40

Sample ID 240614-rh24psxflq
Target a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c
SHA256 a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c
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

a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c

Threat Level: Known bad

The file a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Detect Socks5Systemz Payload

Socks5Systemz

Executes dropped EXE

Loads dropped DLL

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

2024-06-14 14:12

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-14 14:12

Reported

2024-06-14 14:15

Platform

win10v2004-20240508-en

Max time kernel

147s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.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 91.211.247.248 N/A N/A
Destination IP 91.211.247.248 N/A N/A
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-J8E12.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4936 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exe C:\Users\Admin\AppData\Local\Temp\is-J8E12.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp
PID 4936 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exe C:\Users\Admin\AppData\Local\Temp\is-J8E12.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp
PID 4936 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exe C:\Users\Admin\AppData\Local\Temp\is-J8E12.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp
PID 2776 wrote to memory of 1624 N/A C:\Users\Admin\AppData\Local\Temp\is-J8E12.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 2776 wrote to memory of 1624 N/A C:\Users\Admin\AppData\Local\Temp\is-J8E12.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 2776 wrote to memory of 1624 N/A C:\Users\Admin\AppData\Local\Temp\is-J8E12.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 2776 wrote to memory of 636 N/A C:\Users\Admin\AppData\Local\Temp\is-J8E12.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 2776 wrote to memory of 636 N/A C:\Users\Admin\AppData\Local\Temp\is-J8E12.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 2776 wrote to memory of 636 N/A C:\Users\Admin\AppData\Local\Temp\is-J8E12.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe

Processes

C:\Users\Admin\AppData\Local\Temp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exe

"C:\Users\Admin\AppData\Local\Temp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exe"

C:\Users\Admin\AppData\Local\Temp\is-J8E12.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp

"C:\Users\Admin\AppData\Local\Temp\is-J8E12.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp" /SL5="$600EA,4799208,54272,C:\Users\Admin\AppData\Local\Temp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exe"

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe

"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe" -i

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe

"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe" -s

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
LT 91.211.247.248:53 cceasix.net udp
US 8.8.8.8:53 248.247.211.91.in-addr.arpa udp
RU 152.89.198.214:53 cceasix.net udp
US 8.8.8.8:53 214.198.89.152.in-addr.arpa udp
LT 91.211.247.248:53 cceasix.net udp

Files

memory/4936-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4936-3-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-J8E12.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp

MD5 283da5c763c54b41092d9fe0d244b491
SHA1 d5e6a5b76a18c5a1d68244f2c3697bd8881fcf03
SHA256 339d2ff372992255baddd6d21cc15045b42780b25d251f570480e1aacdd00ad9
SHA512 306815b5fd5c387ffd9705097271edf5851cee7c28d1bc707813ce26714e8f722b8a34f73c43903ab6e7303dafc6ab6fa48262e487d86124c037879618cbd45a

memory/2776-13-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-70861.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe

MD5 211a3066bfbaf3c39cb38dd7c1307335
SHA1 bd9917c063552a54b812a6d153ebd4c86bf3d93e
SHA256 a4651179ff7440d363a10a9470cb8c09a41c7e8e9ffcf0cc16b2e1af8a77b714
SHA512 4facc90de1197e0fc089785b5fac03243555537be3e0fbca207b47e3d7194a162ea5ed52ec84789cd8e6ccdcb0a372aab03ce4ba6784cfca0ec700575ffcc49a

memory/1624-59-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/1624-60-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/1624-63-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/1624-65-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/636-69-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/636-68-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/4936-70-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2776-71-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/636-72-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/636-75-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/636-76-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/636-79-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/636-82-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/636-85-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/636-88-0x0000000002900000-0x00000000029A2000-memory.dmp

memory/636-92-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/636-95-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/636-98-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/636-101-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/636-104-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/636-107-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/636-110-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/636-113-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/636-116-0x0000000000400000-0x00000000006ED000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-14 14:12

Reported

2024-06-14 14:15

Platform

win11-20240508-en

Max time kernel

147s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.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 91.211.247.248 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-DV87N.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1716 wrote to memory of 1320 N/A C:\Users\Admin\AppData\Local\Temp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exe C:\Users\Admin\AppData\Local\Temp\is-DV87N.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp
PID 1716 wrote to memory of 1320 N/A C:\Users\Admin\AppData\Local\Temp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exe C:\Users\Admin\AppData\Local\Temp\is-DV87N.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp
PID 1716 wrote to memory of 1320 N/A C:\Users\Admin\AppData\Local\Temp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exe C:\Users\Admin\AppData\Local\Temp\is-DV87N.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp
PID 1320 wrote to memory of 4260 N/A C:\Users\Admin\AppData\Local\Temp\is-DV87N.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 1320 wrote to memory of 4260 N/A C:\Users\Admin\AppData\Local\Temp\is-DV87N.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 1320 wrote to memory of 4260 N/A C:\Users\Admin\AppData\Local\Temp\is-DV87N.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 1320 wrote to memory of 4164 N/A C:\Users\Admin\AppData\Local\Temp\is-DV87N.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 1320 wrote to memory of 4164 N/A C:\Users\Admin\AppData\Local\Temp\is-DV87N.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 1320 wrote to memory of 4164 N/A C:\Users\Admin\AppData\Local\Temp\is-DV87N.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe

Processes

C:\Users\Admin\AppData\Local\Temp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exe

"C:\Users\Admin\AppData\Local\Temp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exe"

C:\Users\Admin\AppData\Local\Temp\is-DV87N.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp

"C:\Users\Admin\AppData\Local\Temp\is-DV87N.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp" /SL5="$60248,4799208,54272,C:\Users\Admin\AppData\Local\Temp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exe"

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe

"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe" -i

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe

"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe" -s

Network

Country Destination Domain Proto
LT 91.211.247.248:53 aahznzk.ru udp
US 8.8.8.8:53 248.247.211.91.in-addr.arpa udp
RU 152.89.198.214:53 aahznzk.ru udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 214.198.89.152.in-addr.arpa udp
LT 91.211.247.248:53 aahznzk.ru udp

Files

memory/1716-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1716-3-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-DV87N.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp

MD5 283da5c763c54b41092d9fe0d244b491
SHA1 d5e6a5b76a18c5a1d68244f2c3697bd8881fcf03
SHA256 339d2ff372992255baddd6d21cc15045b42780b25d251f570480e1aacdd00ad9
SHA512 306815b5fd5c387ffd9705097271edf5851cee7c28d1bc707813ce26714e8f722b8a34f73c43903ab6e7303dafc6ab6fa48262e487d86124c037879618cbd45a

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

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

memory/1320-16-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe

MD5 211a3066bfbaf3c39cb38dd7c1307335
SHA1 bd9917c063552a54b812a6d153ebd4c86bf3d93e
SHA256 a4651179ff7440d363a10a9470cb8c09a41c7e8e9ffcf0cc16b2e1af8a77b714
SHA512 4facc90de1197e0fc089785b5fac03243555537be3e0fbca207b47e3d7194a162ea5ed52ec84789cd8e6ccdcb0a372aab03ce4ba6784cfca0ec700575ffcc49a

memory/4260-59-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/4260-62-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/4260-63-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/4260-65-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/4164-68-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/1716-69-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1320-70-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/4164-71-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/4164-74-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/4164-75-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/4164-78-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/4164-81-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/4164-84-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/4164-87-0x00000000024D0000-0x0000000002572000-memory.dmp

memory/4164-89-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/4164-94-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/4164-97-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/4164-100-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/4164-103-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/4164-106-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/4164-109-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/4164-112-0x0000000000400000-0x00000000006ED000-memory.dmp

memory/4164-115-0x0000000000400000-0x00000000006ED000-memory.dmp