Malware Analysis Report

2024-10-10 10:40

Sample ID 240614-rzdsfavcmf
Target 880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b
SHA256 880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b
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

880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b

Threat Level: Known bad

The file 880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Detect Socks5Systemz Payload

Socks5Systemz

Unexpected DNS network traffic destination

Executes dropped EXE

Loads dropped DLL

Checks installed software on the system

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-14 14:37

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-14 14:37

Reported

2024-06-14 14:40

Platform

win10v2004-20240508-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.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-FT50N.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3756 wrote to memory of 232 N/A C:\Users\Admin\AppData\Local\Temp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.exe C:\Users\Admin\AppData\Local\Temp\is-FT50N.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp
PID 3756 wrote to memory of 232 N/A C:\Users\Admin\AppData\Local\Temp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.exe C:\Users\Admin\AppData\Local\Temp\is-FT50N.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp
PID 3756 wrote to memory of 232 N/A C:\Users\Admin\AppData\Local\Temp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.exe C:\Users\Admin\AppData\Local\Temp\is-FT50N.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp
PID 232 wrote to memory of 3348 N/A C:\Users\Admin\AppData\Local\Temp\is-FT50N.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 232 wrote to memory of 3348 N/A C:\Users\Admin\AppData\Local\Temp\is-FT50N.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 232 wrote to memory of 3348 N/A C:\Users\Admin\AppData\Local\Temp\is-FT50N.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 232 wrote to memory of 3440 N/A C:\Users\Admin\AppData\Local\Temp\is-FT50N.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 232 wrote to memory of 3440 N/A C:\Users\Admin\AppData\Local\Temp\is-FT50N.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 232 wrote to memory of 3440 N/A C:\Users\Admin\AppData\Local\Temp\is-FT50N.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe

Processes

C:\Users\Admin\AppData\Local\Temp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.exe

"C:\Users\Admin\AppData\Local\Temp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.exe"

C:\Users\Admin\AppData\Local\Temp\is-FT50N.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp

"C:\Users\Admin\AppData\Local\Temp\is-FT50N.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp" /SL5="$601D4,5197306,54272,C:\Users\Admin\AppData\Local\Temp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.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
HK 141.98.234.31:53 aqwecdl.ru udp
US 8.8.8.8:53 31.234.98.141.in-addr.arpa udp
RU 152.89.198.214:53 aqwecdl.ru udp
US 8.8.8.8:53 193.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 214.198.89.152.in-addr.arpa udp
LT 91.211.247.248:53 aqwecdl.ru udp
US 8.8.8.8:53 248.247.211.91.in-addr.arpa udp

Files

memory/3756-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3756-3-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-FT50N.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp

MD5 283da5c763c54b41092d9fe0d244b491
SHA1 d5e6a5b76a18c5a1d68244f2c3697bd8881fcf03
SHA256 339d2ff372992255baddd6d21cc15045b42780b25d251f570480e1aacdd00ad9
SHA512 306815b5fd5c387ffd9705097271edf5851cee7c28d1bc707813ce26714e8f722b8a34f73c43903ab6e7303dafc6ab6fa48262e487d86124c037879618cbd45a

memory/232-13-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-CM5FV.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 5997070ef08734a59ebf7474233c2b55
SHA1 7938bf5eb8609c848d31ca073ece1f61a9fecf32
SHA256 9c30b95948d70ff3b61fdd049a63106b05dd1185fbc768cbf168dd99e5daecfd
SHA512 ef9c98a5a9012622bb90bfe97ee96cde6e24ce9edbeffde496f64f852e47e97183762e65254c854345e80b33b7df46c566211122d94cedc7668359d1e544bdde

memory/3348-59-0x0000000000400000-0x0000000000751000-memory.dmp

memory/3348-60-0x0000000000400000-0x0000000000751000-memory.dmp

memory/3348-63-0x0000000000400000-0x0000000000751000-memory.dmp

memory/3440-67-0x0000000000400000-0x0000000000751000-memory.dmp

memory/3756-68-0x0000000000400000-0x0000000000414000-memory.dmp

memory/232-69-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/3440-70-0x0000000000400000-0x0000000000751000-memory.dmp

memory/3440-73-0x0000000000400000-0x0000000000751000-memory.dmp

memory/3440-76-0x0000000000400000-0x0000000000751000-memory.dmp

memory/3440-79-0x0000000000400000-0x0000000000751000-memory.dmp

memory/3440-82-0x0000000000400000-0x0000000000751000-memory.dmp

memory/3440-85-0x00000000008F0000-0x0000000000992000-memory.dmp

memory/3440-89-0x0000000000400000-0x0000000000751000-memory.dmp

memory/3440-92-0x0000000000400000-0x0000000000751000-memory.dmp

memory/3440-95-0x0000000000400000-0x0000000000751000-memory.dmp

memory/3440-98-0x0000000000400000-0x0000000000751000-memory.dmp

memory/3440-101-0x0000000000400000-0x0000000000751000-memory.dmp

memory/3440-104-0x0000000000400000-0x0000000000751000-memory.dmp

memory/3440-107-0x0000000000400000-0x0000000000751000-memory.dmp

memory/3440-110-0x0000000000400000-0x0000000000751000-memory.dmp

memory/3440-113-0x0000000000400000-0x0000000000751000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-14 14:37

Reported

2024-06-14 14:40

Platform

win11-20240611-en

Max time kernel

146s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.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 45.155.250.90 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-4RM5V.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4708 wrote to memory of 2244 N/A C:\Users\Admin\AppData\Local\Temp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.exe C:\Users\Admin\AppData\Local\Temp\is-4RM5V.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp
PID 4708 wrote to memory of 2244 N/A C:\Users\Admin\AppData\Local\Temp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.exe C:\Users\Admin\AppData\Local\Temp\is-4RM5V.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp
PID 4708 wrote to memory of 2244 N/A C:\Users\Admin\AppData\Local\Temp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.exe C:\Users\Admin\AppData\Local\Temp\is-4RM5V.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp
PID 2244 wrote to memory of 1832 N/A C:\Users\Admin\AppData\Local\Temp\is-4RM5V.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 2244 wrote to memory of 1832 N/A C:\Users\Admin\AppData\Local\Temp\is-4RM5V.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 2244 wrote to memory of 1832 N/A C:\Users\Admin\AppData\Local\Temp\is-4RM5V.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 2244 wrote to memory of 1804 N/A C:\Users\Admin\AppData\Local\Temp\is-4RM5V.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 2244 wrote to memory of 1804 N/A C:\Users\Admin\AppData\Local\Temp\is-4RM5V.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 2244 wrote to memory of 1804 N/A C:\Users\Admin\AppData\Local\Temp\is-4RM5V.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe

Processes

C:\Users\Admin\AppData\Local\Temp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.exe

"C:\Users\Admin\AppData\Local\Temp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.exe"

C:\Users\Admin\AppData\Local\Temp\is-4RM5V.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp

"C:\Users\Admin\AppData\Local\Temp\is-4RM5V.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp" /SL5="$40236,5197306,54272,C:\Users\Admin\AppData\Local\Temp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.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
SE 45.155.250.90:53 bhmpdur.com udp
TR 94.156.8.80:80 bhmpdur.com tcp
BG 194.59.31.219:2023 tcp
US 8.8.8.8:53 80.8.156.94.in-addr.arpa udp
US 8.8.8.8:53 219.31.59.194.in-addr.arpa udp

Files

memory/4708-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4708-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-4RM5V.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp

MD5 283da5c763c54b41092d9fe0d244b491
SHA1 d5e6a5b76a18c5a1d68244f2c3697bd8881fcf03
SHA256 339d2ff372992255baddd6d21cc15045b42780b25d251f570480e1aacdd00ad9
SHA512 306815b5fd5c387ffd9705097271edf5851cee7c28d1bc707813ce26714e8f722b8a34f73c43903ab6e7303dafc6ab6fa48262e487d86124c037879618cbd45a

memory/2244-12-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-CDKVS.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 5997070ef08734a59ebf7474233c2b55
SHA1 7938bf5eb8609c848d31ca073ece1f61a9fecf32
SHA256 9c30b95948d70ff3b61fdd049a63106b05dd1185fbc768cbf168dd99e5daecfd
SHA512 ef9c98a5a9012622bb90bfe97ee96cde6e24ce9edbeffde496f64f852e47e97183762e65254c854345e80b33b7df46c566211122d94cedc7668359d1e544bdde

memory/1832-59-0x0000000000400000-0x0000000000751000-memory.dmp

memory/1832-60-0x0000000000400000-0x0000000000751000-memory.dmp

memory/1832-65-0x0000000000400000-0x0000000000751000-memory.dmp

memory/1832-63-0x0000000000400000-0x0000000000751000-memory.dmp

memory/1804-68-0x0000000000400000-0x0000000000751000-memory.dmp

memory/4708-69-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2244-70-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/1804-71-0x0000000000400000-0x0000000000751000-memory.dmp

memory/1804-74-0x0000000000400000-0x0000000000751000-memory.dmp

memory/1804-77-0x0000000000400000-0x0000000000751000-memory.dmp

memory/1804-80-0x0000000000400000-0x0000000000751000-memory.dmp

memory/1804-83-0x0000000000400000-0x0000000000751000-memory.dmp

memory/1804-86-0x0000000002570000-0x0000000002612000-memory.dmp

memory/1804-88-0x0000000000400000-0x0000000000751000-memory.dmp

memory/1804-93-0x0000000000400000-0x0000000000751000-memory.dmp

memory/1804-96-0x0000000000400000-0x0000000000751000-memory.dmp

memory/1804-99-0x0000000000400000-0x0000000000751000-memory.dmp

memory/1804-102-0x0000000000400000-0x0000000000751000-memory.dmp

memory/1804-105-0x0000000000400000-0x0000000000751000-memory.dmp

memory/1804-108-0x0000000000400000-0x0000000000751000-memory.dmp

memory/1804-110-0x0000000002570000-0x0000000002612000-memory.dmp

memory/1804-109-0x0000000002570000-0x0000000002612000-memory.dmp

memory/1804-114-0x0000000000400000-0x0000000000751000-memory.dmp

memory/1804-117-0x0000000000400000-0x0000000000751000-memory.dmp