Malware Analysis Report

2024-10-10 10:39

Sample ID 240614-s83zcs1bpm
Target 83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13
SHA256 83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13
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

83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13

Threat Level: Known bad

The file 83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13 was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Detect Socks5Systemz Payload

Socks5Systemz

Executes dropped EXE

Unexpected DNS network traffic destination

Loads dropped DLL

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 15:48

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-14 15:48

Reported

2024-06-14 15:51

Platform

win10v2004-20240508-en

Max time kernel

147s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.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-7QDJ9.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2436 wrote to memory of 1800 N/A C:\Users\Admin\AppData\Local\Temp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.exe C:\Users\Admin\AppData\Local\Temp\is-7QDJ9.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp
PID 2436 wrote to memory of 1800 N/A C:\Users\Admin\AppData\Local\Temp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.exe C:\Users\Admin\AppData\Local\Temp\is-7QDJ9.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp
PID 2436 wrote to memory of 1800 N/A C:\Users\Admin\AppData\Local\Temp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.exe C:\Users\Admin\AppData\Local\Temp\is-7QDJ9.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp
PID 1800 wrote to memory of 5048 N/A C:\Users\Admin\AppData\Local\Temp\is-7QDJ9.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 1800 wrote to memory of 5048 N/A C:\Users\Admin\AppData\Local\Temp\is-7QDJ9.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 1800 wrote to memory of 5048 N/A C:\Users\Admin\AppData\Local\Temp\is-7QDJ9.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 1800 wrote to memory of 1940 N/A C:\Users\Admin\AppData\Local\Temp\is-7QDJ9.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 1800 wrote to memory of 1940 N/A C:\Users\Admin\AppData\Local\Temp\is-7QDJ9.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 1800 wrote to memory of 1940 N/A C:\Users\Admin\AppData\Local\Temp\is-7QDJ9.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe

Processes

C:\Users\Admin\AppData\Local\Temp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.exe

"C:\Users\Admin\AppData\Local\Temp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.exe"

C:\Users\Admin\AppData\Local\Temp\is-7QDJ9.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp

"C:\Users\Admin\AppData\Local\Temp\is-7QDJ9.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp" /SL5="$600EA,4958759,54272,C:\Users\Admin\AppData\Local\Temp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.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 ebisiux.ua udp
US 8.8.8.8:53 248.247.211.91.in-addr.arpa udp
RU 152.89.198.214:53 ebisiux.ua udp
US 8.8.8.8:53 214.198.89.152.in-addr.arpa udp
LT 91.211.247.248:53 ebisiux.ua udp

Files

memory/2436-1-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2436-3-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-7QDJ9.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp

MD5 283da5c763c54b41092d9fe0d244b491
SHA1 d5e6a5b76a18c5a1d68244f2c3697bd8881fcf03
SHA256 339d2ff372992255baddd6d21cc15045b42780b25d251f570480e1aacdd00ad9
SHA512 306815b5fd5c387ffd9705097271edf5851cee7c28d1bc707813ce26714e8f722b8a34f73c43903ab6e7303dafc6ab6fa48262e487d86124c037879618cbd45a

memory/1800-13-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-4JE2H.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 977df7ea9dac8da84eefa7f1b47bc6cc
SHA1 5257efa83b17db554b0828c2063d79e29d0735af
SHA256 45139ccac8646cea65cc08b24ca16edf4abadea44cd7ce935d0f665ea4aa8d05
SHA512 21b3bc00014d476f1bbf3600d6863b9c88e90b206b2ca3e1d914b051f3c9fd065cfb0d07beb8cc59a9a4e6306855bce20e7e814be0b494d0851e48d92f85ec0e

memory/5048-59-0x0000000000400000-0x000000000071D000-memory.dmp

memory/5048-60-0x0000000000400000-0x000000000071D000-memory.dmp

memory/5048-65-0x0000000000400000-0x000000000071D000-memory.dmp

memory/5048-64-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1940-68-0x0000000000400000-0x000000000071D000-memory.dmp

memory/2436-69-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1800-70-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/1940-71-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1940-74-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1940-77-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1940-80-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1940-83-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1940-86-0x0000000002560000-0x0000000002602000-memory.dmp

memory/1940-90-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1940-93-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1940-96-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1940-99-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1940-102-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1940-105-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1940-108-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1940-111-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1940-114-0x0000000000400000-0x000000000071D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-14 15:48

Reported

2024-06-14 15:51

Platform

win11-20240611-en

Max time kernel

147s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.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-SVS8U.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4836 wrote to memory of 5024 N/A C:\Users\Admin\AppData\Local\Temp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.exe C:\Users\Admin\AppData\Local\Temp\is-SVS8U.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp
PID 4836 wrote to memory of 5024 N/A C:\Users\Admin\AppData\Local\Temp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.exe C:\Users\Admin\AppData\Local\Temp\is-SVS8U.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp
PID 4836 wrote to memory of 5024 N/A C:\Users\Admin\AppData\Local\Temp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.exe C:\Users\Admin\AppData\Local\Temp\is-SVS8U.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp
PID 5024 wrote to memory of 3992 N/A C:\Users\Admin\AppData\Local\Temp\is-SVS8U.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 5024 wrote to memory of 3992 N/A C:\Users\Admin\AppData\Local\Temp\is-SVS8U.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 5024 wrote to memory of 3992 N/A C:\Users\Admin\AppData\Local\Temp\is-SVS8U.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 5024 wrote to memory of 1584 N/A C:\Users\Admin\AppData\Local\Temp\is-SVS8U.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 5024 wrote to memory of 1584 N/A C:\Users\Admin\AppData\Local\Temp\is-SVS8U.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
PID 5024 wrote to memory of 1584 N/A C:\Users\Admin\AppData\Local\Temp\is-SVS8U.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe

Processes

C:\Users\Admin\AppData\Local\Temp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.exe

"C:\Users\Admin\AppData\Local\Temp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.exe"

C:\Users\Admin\AppData\Local\Temp\is-SVS8U.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp

"C:\Users\Admin\AppData\Local\Temp\is-SVS8U.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp" /SL5="$40236,4958759,54272,C:\Users\Admin\AppData\Local\Temp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.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 52.111.227.13:443 tcp
SE 45.155.250.90:53 aadcfji.ru udp
TR 94.156.8.80:80 aadcfji.ru tcp
NL 89.105.201.183:2023 tcp
US 8.8.8.8:53 80.8.156.94.in-addr.arpa udp
US 8.8.8.8:53 183.201.105.89.in-addr.arpa udp

Files

memory/4836-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4836-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-SVS8U.tmp\83e4543ae2d1aaf2d357fdc14642858a0a2c6867196c9ced20aa84459b592b13.tmp

MD5 283da5c763c54b41092d9fe0d244b491
SHA1 d5e6a5b76a18c5a1d68244f2c3697bd8881fcf03
SHA256 339d2ff372992255baddd6d21cc15045b42780b25d251f570480e1aacdd00ad9
SHA512 306815b5fd5c387ffd9705097271edf5851cee7c28d1bc707813ce26714e8f722b8a34f73c43903ab6e7303dafc6ab6fa48262e487d86124c037879618cbd45a

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

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

memory/5024-16-0x0000000000400000-0x00000000004BA000-memory.dmp

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

MD5 977df7ea9dac8da84eefa7f1b47bc6cc
SHA1 5257efa83b17db554b0828c2063d79e29d0735af
SHA256 45139ccac8646cea65cc08b24ca16edf4abadea44cd7ce935d0f665ea4aa8d05
SHA512 21b3bc00014d476f1bbf3600d6863b9c88e90b206b2ca3e1d914b051f3c9fd065cfb0d07beb8cc59a9a4e6306855bce20e7e814be0b494d0851e48d92f85ec0e

memory/3992-59-0x0000000000400000-0x000000000071D000-memory.dmp

memory/3992-60-0x0000000000400000-0x000000000071D000-memory.dmp

memory/3992-63-0x0000000000400000-0x000000000071D000-memory.dmp

memory/3992-65-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1584-68-0x0000000000400000-0x000000000071D000-memory.dmp

memory/4836-69-0x0000000000400000-0x0000000000414000-memory.dmp

memory/5024-70-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/1584-71-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1584-74-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1584-77-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1584-80-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1584-83-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1584-85-0x0000000002910000-0x00000000029B2000-memory.dmp

memory/1584-89-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1584-94-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1584-97-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1584-100-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1584-103-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1584-106-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1584-109-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1584-110-0x0000000002910000-0x00000000029B2000-memory.dmp

memory/1584-111-0x0000000002910000-0x00000000029B2000-memory.dmp

memory/1584-115-0x0000000000400000-0x000000000071D000-memory.dmp

memory/1584-118-0x0000000000400000-0x000000000071D000-memory.dmp