Malware Analysis Report

2024-10-10 10:40

Sample ID 240615-qffbgswajm
Target efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab
SHA256 efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab
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

efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab

Threat Level: Known bad

The file efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab 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

Unsigned PE

Enumerates physical storage devices

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-15 13:11

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-15 13:11

Reported

2024-06-15 13:14

Platform

win10v2004-20240611-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.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 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-TUJI7.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 404 wrote to memory of 1220 N/A C:\Users\Admin\AppData\Local\Temp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.exe C:\Users\Admin\AppData\Local\Temp\is-TUJI7.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp
PID 404 wrote to memory of 1220 N/A C:\Users\Admin\AppData\Local\Temp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.exe C:\Users\Admin\AppData\Local\Temp\is-TUJI7.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp
PID 404 wrote to memory of 1220 N/A C:\Users\Admin\AppData\Local\Temp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.exe C:\Users\Admin\AppData\Local\Temp\is-TUJI7.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp
PID 1220 wrote to memory of 5072 N/A C:\Users\Admin\AppData\Local\Temp\is-TUJI7.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe
PID 1220 wrote to memory of 5072 N/A C:\Users\Admin\AppData\Local\Temp\is-TUJI7.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe
PID 1220 wrote to memory of 5072 N/A C:\Users\Admin\AppData\Local\Temp\is-TUJI7.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe
PID 1220 wrote to memory of 4056 N/A C:\Users\Admin\AppData\Local\Temp\is-TUJI7.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe
PID 1220 wrote to memory of 4056 N/A C:\Users\Admin\AppData\Local\Temp\is-TUJI7.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe
PID 1220 wrote to memory of 4056 N/A C:\Users\Admin\AppData\Local\Temp\is-TUJI7.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.exe

"C:\Users\Admin\AppData\Local\Temp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.exe"

C:\Users\Admin\AppData\Local\Temp\is-TUJI7.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp

"C:\Users\Admin\AppData\Local\Temp\is-TUJI7.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp" /SL5="$401DC,5834624,54272,C:\Users\Admin\AppData\Local\Temp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.exe"

C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe

"C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe" -i

C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe

"C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe" -s

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
BE 88.221.83.209:443 www.bing.com tcp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 209.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
LT 91.211.247.248:53 bpbuupx.com udp
TR 94.156.8.80:80 bpbuupx.com tcp
NL 89.105.201.183:2023 tcp
US 8.8.8.8:53 248.247.211.91.in-addr.arpa udp
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
US 8.8.8.8:53 104.193.132.51.in-addr.arpa udp

Files

memory/404-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/404-3-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-TUJI7.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp

MD5 5f513310dfdd2863a7925cf881b08d83
SHA1 e56ca43de148e9113a0143817d610dbff90984c8
SHA256 a1ea89d5df4a9fb1fb89d9c060df3d5e69a61d8ffde360ebd46128f55e95ff01
SHA512 c5e15e04432663c15d73a7ab2ea21f38907fe7667689702bd7914dc4b086484d985ee9d46fc4f4871b6ae48d17464cc296c18a9ac87ab2fc01dca056f07e44dc

C:\Users\Admin\AppData\Local\Temp\is-92051.tmp\_isetup\_isdecmp.dll

MD5 a813d18268affd4763dde940246dc7e5
SHA1 c7366e1fd925c17cc6068001bd38eaef5b42852f
SHA256 e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64
SHA512 b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

memory/1220-10-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-92051.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe

MD5 183e4201632fbe92a7570f3279645145
SHA1 52f01b3d5a7b3b1dc5c9f9e7e08e7566e51a37d6
SHA256 f6bb2c56a2d18e01a2cf334cbf3344b102e9cb6fe22d37f903fad1952f3587d3
SHA512 5422c7baa435fd53a50d42114b2fb1b79265d7e2925874a9d158be7bd9cd528edd634f5831136f8d9d29ccd7289802b9e03422b6c4b3498ad52a136cffc7c339

memory/5072-65-0x0000000000400000-0x000000000077A000-memory.dmp

memory/5072-67-0x0000000000400000-0x000000000077A000-memory.dmp

memory/5072-71-0x0000000000400000-0x000000000077A000-memory.dmp

memory/4056-74-0x0000000000400000-0x000000000077A000-memory.dmp

memory/5072-66-0x0000000000400000-0x000000000077A000-memory.dmp

memory/404-75-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1220-76-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/4056-77-0x0000000000400000-0x000000000077A000-memory.dmp

memory/4056-80-0x0000000000400000-0x000000000077A000-memory.dmp

memory/4056-81-0x0000000000400000-0x000000000077A000-memory.dmp

memory/4056-84-0x0000000000400000-0x000000000077A000-memory.dmp

memory/4056-87-0x0000000000400000-0x000000000077A000-memory.dmp

memory/4056-90-0x0000000000400000-0x000000000077A000-memory.dmp

memory/4056-93-0x0000000000400000-0x000000000077A000-memory.dmp

memory/4056-94-0x0000000002650000-0x00000000026F2000-memory.dmp

memory/4056-100-0x0000000000400000-0x000000000077A000-memory.dmp

memory/4056-103-0x0000000000400000-0x000000000077A000-memory.dmp

memory/4056-106-0x0000000000400000-0x000000000077A000-memory.dmp

memory/4056-109-0x0000000000400000-0x000000000077A000-memory.dmp

memory/4056-112-0x0000000000400000-0x000000000077A000-memory.dmp

memory/4056-115-0x0000000000400000-0x000000000077A000-memory.dmp

memory/4056-117-0x0000000002650000-0x00000000026F2000-memory.dmp

memory/4056-116-0x0000000002650000-0x00000000026F2000-memory.dmp

memory/4056-121-0x0000000000400000-0x000000000077A000-memory.dmp

memory/4056-124-0x0000000000400000-0x000000000077A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-15 13:11

Reported

2024-06-15 13:14

Platform

win11-20240611-en

Max time kernel

141s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.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 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-0QO2U.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 5036 wrote to memory of 1816 N/A C:\Users\Admin\AppData\Local\Temp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.exe C:\Users\Admin\AppData\Local\Temp\is-0QO2U.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp
PID 5036 wrote to memory of 1816 N/A C:\Users\Admin\AppData\Local\Temp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.exe C:\Users\Admin\AppData\Local\Temp\is-0QO2U.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp
PID 5036 wrote to memory of 1816 N/A C:\Users\Admin\AppData\Local\Temp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.exe C:\Users\Admin\AppData\Local\Temp\is-0QO2U.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp
PID 1816 wrote to memory of 4200 N/A C:\Users\Admin\AppData\Local\Temp\is-0QO2U.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe
PID 1816 wrote to memory of 4200 N/A C:\Users\Admin\AppData\Local\Temp\is-0QO2U.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe
PID 1816 wrote to memory of 4200 N/A C:\Users\Admin\AppData\Local\Temp\is-0QO2U.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe
PID 1816 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\is-0QO2U.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe
PID 1816 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\is-0QO2U.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe
PID 1816 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\is-0QO2U.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.exe

"C:\Users\Admin\AppData\Local\Temp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.exe"

C:\Users\Admin\AppData\Local\Temp\is-0QO2U.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp

"C:\Users\Admin\AppData\Local\Temp\is-0QO2U.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp" /SL5="$8016C,5834624,54272,C:\Users\Admin\AppData\Local\Temp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.exe"

C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe

"C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe" -i

C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe

"C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe" -s

Network

Country Destination Domain Proto
HK 141.98.234.31:53 buiypld.com udp
TR 94.156.8.80:80 buiypld.com tcp
NL 89.105.201.183:2023 tcp
US 8.8.8.8:53 31.234.98.141.in-addr.arpa udp
US 8.8.8.8:53 183.201.105.89.in-addr.arpa udp

Files

memory/5036-2-0x0000000000401000-0x000000000040B000-memory.dmp

memory/5036-0-0x0000000000400000-0x0000000000414000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-0QO2U.tmp\efa80941103ee706ebbd575b7f0ad63584eec4771152254d7a4ba56a9fbcd6ab.tmp

MD5 5f513310dfdd2863a7925cf881b08d83
SHA1 e56ca43de148e9113a0143817d610dbff90984c8
SHA256 a1ea89d5df4a9fb1fb89d9c060df3d5e69a61d8ffde360ebd46128f55e95ff01
SHA512 c5e15e04432663c15d73a7ab2ea21f38907fe7667689702bd7914dc4b086484d985ee9d46fc4f4871b6ae48d17464cc296c18a9ac87ab2fc01dca056f07e44dc

memory/1816-19-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-DDC63.tmp\_isetup\_isdecmp.dll

MD5 a813d18268affd4763dde940246dc7e5
SHA1 c7366e1fd925c17cc6068001bd38eaef5b42852f
SHA256 e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64
SHA512 b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

C:\Users\Admin\AppData\Local\Temp\is-DDC63.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer32.exe

MD5 183e4201632fbe92a7570f3279645145
SHA1 52f01b3d5a7b3b1dc5c9f9e7e08e7566e51a37d6
SHA256 f6bb2c56a2d18e01a2cf334cbf3344b102e9cb6fe22d37f903fad1952f3587d3
SHA512 5422c7baa435fd53a50d42114b2fb1b79265d7e2925874a9d158be7bd9cd528edd634f5831136f8d9d29ccd7289802b9e03422b6c4b3498ad52a136cffc7c339

memory/4200-65-0x0000000000400000-0x000000000077A000-memory.dmp

memory/4200-66-0x0000000000400000-0x000000000077A000-memory.dmp

memory/4200-70-0x0000000000400000-0x000000000077A000-memory.dmp

memory/4200-71-0x0000000000400000-0x000000000077A000-memory.dmp

memory/2388-74-0x0000000000400000-0x000000000077A000-memory.dmp

memory/5036-75-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1816-76-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/2388-77-0x0000000000400000-0x000000000077A000-memory.dmp

memory/2388-80-0x0000000000400000-0x000000000077A000-memory.dmp

memory/2388-83-0x0000000000400000-0x000000000077A000-memory.dmp

memory/2388-86-0x0000000000400000-0x000000000077A000-memory.dmp

memory/2388-89-0x0000000000400000-0x000000000077A000-memory.dmp

memory/2388-92-0x0000000000AB0000-0x0000000000B52000-memory.dmp

memory/2388-95-0x0000000000400000-0x000000000077A000-memory.dmp

memory/2388-100-0x0000000000400000-0x000000000077A000-memory.dmp

memory/2388-103-0x0000000000400000-0x000000000077A000-memory.dmp

memory/2388-106-0x0000000000400000-0x000000000077A000-memory.dmp

memory/2388-109-0x0000000000400000-0x000000000077A000-memory.dmp

memory/2388-112-0x0000000000400000-0x000000000077A000-memory.dmp

memory/2388-115-0x0000000000400000-0x000000000077A000-memory.dmp

memory/2388-116-0x0000000000AB0000-0x0000000000B52000-memory.dmp

memory/2388-117-0x0000000000AB0000-0x0000000000B52000-memory.dmp

memory/2388-121-0x0000000000400000-0x000000000077A000-memory.dmp

memory/2388-124-0x0000000000400000-0x000000000077A000-memory.dmp