Malware Analysis Report

2024-11-15 04:58

Sample ID 240625-sk54taxbre
Target e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5
SHA256 e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5
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

e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5

Threat Level: Known bad

The file e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5 was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Socks5Systemz

Detect Socks5Systemz Payload

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

2024-06-25 15:12

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-25 15:12

Reported

2024-06-25 15:14

Platform

win10v2004-20240611-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.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-FCMVR.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4172 wrote to memory of 1908 N/A C:\Users\Admin\AppData\Local\Temp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.exe C:\Users\Admin\AppData\Local\Temp\is-FCMVR.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp
PID 4172 wrote to memory of 1908 N/A C:\Users\Admin\AppData\Local\Temp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.exe C:\Users\Admin\AppData\Local\Temp\is-FCMVR.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp
PID 4172 wrote to memory of 1908 N/A C:\Users\Admin\AppData\Local\Temp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.exe C:\Users\Admin\AppData\Local\Temp\is-FCMVR.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp
PID 1908 wrote to memory of 2516 N/A C:\Users\Admin\AppData\Local\Temp\is-FCMVR.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 1908 wrote to memory of 2516 N/A C:\Users\Admin\AppData\Local\Temp\is-FCMVR.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 1908 wrote to memory of 2516 N/A C:\Users\Admin\AppData\Local\Temp\is-FCMVR.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 1908 wrote to memory of 1112 N/A C:\Users\Admin\AppData\Local\Temp\is-FCMVR.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 1908 wrote to memory of 1112 N/A C:\Users\Admin\AppData\Local\Temp\is-FCMVR.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 1908 wrote to memory of 1112 N/A C:\Users\Admin\AppData\Local\Temp\is-FCMVR.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.exe

"C:\Users\Admin\AppData\Local\Temp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.exe"

C:\Users\Admin\AppData\Local\Temp\is-FCMVR.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp

"C:\Users\Admin\AppData\Local\Temp\is-FCMVR.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp" /SL5="$501CA,4905592,54272,C:\Users\Admin\AppData\Local\Temp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.exe"

C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe

"C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe" -i

C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe

"C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe" -s

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 144.107.17.2.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 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 35.15.31.184.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.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 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
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
HK 141.98.234.31:53 bgbhdco.com udp
US 8.8.8.8:53 31.234.98.141.in-addr.arpa udp
TR 94.156.8.80:80 bgbhdco.com tcp
NL 79.132.128.125:2023 tcp
US 8.8.8.8:53 80.8.156.94.in-addr.arpa udp
US 8.8.8.8:53 125.128.132.79.in-addr.arpa udp
US 8.8.8.8:53 104.246.116.51.in-addr.arpa udp

Files

memory/4172-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4172-3-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-FCMVR.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp

MD5 d127f8888027261f305c5f3f49010ecd
SHA1 3c74fca88feb692e6cfc7404ff359b50ee63e3ae
SHA256 804c947fa51a838dbaebb328f5470e01df04288de8185ccdf2aad5023c918b05
SHA512 bb225a2bf9e347f8c83ecc4ac028c849ccb7aafee814870010a261538c9eadbb7f5ca36ba30c95d84ec01fe0f3a97aadbc0fadf71c5f3018f18632359dba095e

memory/1908-13-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-V403Q.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe

MD5 23d16a31a7a558a57af5df3ccad38d0c
SHA1 9637c3944e59d68fb4d5a8823f2b9623ec48fabd
SHA256 26922abfdf90c48b2ffeaaf77fd4fb28df7aecf7ca585753d0a7f32976b2a4b5
SHA512 15de6a6989a221e44645c83560221257d423c6f60fd10f69b18c5fb117e0b44454c46b70b56033ffbdd52d68948ed0808abef8f2d220026fb8f39bfeceed4b61

memory/2516-59-0x0000000000400000-0x0000000000709000-memory.dmp

memory/2516-60-0x0000000000400000-0x0000000000709000-memory.dmp

memory/2516-63-0x0000000000400000-0x0000000000709000-memory.dmp

memory/2516-65-0x0000000000400000-0x0000000000709000-memory.dmp

memory/1112-68-0x0000000000400000-0x0000000000709000-memory.dmp

memory/4172-69-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1908-70-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/1112-71-0x0000000000400000-0x0000000000709000-memory.dmp

memory/1112-74-0x0000000000400000-0x0000000000709000-memory.dmp

memory/1112-77-0x0000000000400000-0x0000000000709000-memory.dmp

memory/1112-80-0x0000000000400000-0x0000000000709000-memory.dmp

memory/1112-83-0x0000000000400000-0x0000000000709000-memory.dmp

memory/1112-85-0x0000000000910000-0x00000000009B2000-memory.dmp

memory/1112-88-0x0000000000400000-0x0000000000709000-memory.dmp

memory/1112-93-0x0000000000400000-0x0000000000709000-memory.dmp

memory/1112-96-0x0000000000400000-0x0000000000709000-memory.dmp

memory/1112-99-0x0000000000400000-0x0000000000709000-memory.dmp

memory/1112-102-0x0000000000400000-0x0000000000709000-memory.dmp

memory/1112-105-0x0000000000400000-0x0000000000709000-memory.dmp

memory/1112-108-0x0000000000400000-0x0000000000709000-memory.dmp

memory/1112-109-0x0000000000910000-0x00000000009B2000-memory.dmp

memory/1112-110-0x0000000000910000-0x00000000009B2000-memory.dmp

memory/1112-114-0x0000000000400000-0x0000000000709000-memory.dmp

memory/1112-117-0x0000000000400000-0x0000000000709000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-25 15:12

Reported

2024-06-25 15:14

Platform

win11-20240508-en

Max time kernel

141s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.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-6US5N.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1540 wrote to memory of 2484 N/A C:\Users\Admin\AppData\Local\Temp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.exe C:\Users\Admin\AppData\Local\Temp\is-6US5N.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp
PID 1540 wrote to memory of 2484 N/A C:\Users\Admin\AppData\Local\Temp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.exe C:\Users\Admin\AppData\Local\Temp\is-6US5N.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp
PID 1540 wrote to memory of 2484 N/A C:\Users\Admin\AppData\Local\Temp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.exe C:\Users\Admin\AppData\Local\Temp\is-6US5N.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp
PID 2484 wrote to memory of 3680 N/A C:\Users\Admin\AppData\Local\Temp\is-6US5N.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 2484 wrote to memory of 3680 N/A C:\Users\Admin\AppData\Local\Temp\is-6US5N.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 2484 wrote to memory of 3680 N/A C:\Users\Admin\AppData\Local\Temp\is-6US5N.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 2484 wrote to memory of 2360 N/A C:\Users\Admin\AppData\Local\Temp\is-6US5N.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 2484 wrote to memory of 2360 N/A C:\Users\Admin\AppData\Local\Temp\is-6US5N.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 2484 wrote to memory of 2360 N/A C:\Users\Admin\AppData\Local\Temp\is-6US5N.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.exe

"C:\Users\Admin\AppData\Local\Temp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.exe"

C:\Users\Admin\AppData\Local\Temp\is-6US5N.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp

"C:\Users\Admin\AppData\Local\Temp\is-6US5N.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp" /SL5="$5006E,4905592,54272,C:\Users\Admin\AppData\Local\Temp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.exe"

C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe

"C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe" -i

C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe

"C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe" -s

Network

Country Destination Domain Proto
US 52.111.227.14:443 tcp
HK 141.98.234.31:53 dishvuc.info udp
TR 94.156.8.80:80 dishvuc.info 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/1540-2-0x0000000000401000-0x000000000040B000-memory.dmp

memory/1540-0-0x0000000000400000-0x0000000000414000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-6US5N.tmp\e4c7a717716c1cac5efbd09e6ea5a497389d0b4f870213deefdddb9c8c852dd5.tmp

MD5 d127f8888027261f305c5f3f49010ecd
SHA1 3c74fca88feb692e6cfc7404ff359b50ee63e3ae
SHA256 804c947fa51a838dbaebb328f5470e01df04288de8185ccdf2aad5023c918b05
SHA512 bb225a2bf9e347f8c83ecc4ac028c849ccb7aafee814870010a261538c9eadbb7f5ca36ba30c95d84ec01fe0f3a97aadbc0fadf71c5f3018f18632359dba095e

C:\Users\Admin\AppData\Local\Temp\is-KHKH5.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

memory/2484-16-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe

MD5 23d16a31a7a558a57af5df3ccad38d0c
SHA1 9637c3944e59d68fb4d5a8823f2b9623ec48fabd
SHA256 26922abfdf90c48b2ffeaaf77fd4fb28df7aecf7ca585753d0a7f32976b2a4b5
SHA512 15de6a6989a221e44645c83560221257d423c6f60fd10f69b18c5fb117e0b44454c46b70b56033ffbdd52d68948ed0808abef8f2d220026fb8f39bfeceed4b61

memory/3680-59-0x0000000000400000-0x0000000000709000-memory.dmp

memory/3680-60-0x0000000000400000-0x0000000000709000-memory.dmp

memory/3680-63-0x0000000000400000-0x0000000000709000-memory.dmp

memory/3680-65-0x0000000000400000-0x0000000000709000-memory.dmp

memory/2360-67-0x0000000000400000-0x0000000000709000-memory.dmp

memory/2360-69-0x0000000000400000-0x0000000000709000-memory.dmp

memory/1540-70-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2484-71-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/2360-72-0x0000000000400000-0x0000000000709000-memory.dmp

memory/2360-75-0x0000000000400000-0x0000000000709000-memory.dmp

memory/2360-76-0x0000000000400000-0x0000000000709000-memory.dmp

memory/2360-79-0x0000000000400000-0x0000000000709000-memory.dmp

memory/2360-82-0x0000000000400000-0x0000000000709000-memory.dmp

memory/2360-85-0x0000000000400000-0x0000000000709000-memory.dmp

memory/2360-86-0x0000000000A80000-0x0000000000B22000-memory.dmp

memory/2360-90-0x0000000000400000-0x0000000000709000-memory.dmp

memory/2360-95-0x0000000000400000-0x0000000000709000-memory.dmp

memory/2360-98-0x0000000000400000-0x0000000000709000-memory.dmp

memory/2360-101-0x0000000000400000-0x0000000000709000-memory.dmp

memory/2360-104-0x0000000000400000-0x0000000000709000-memory.dmp

memory/2360-107-0x0000000000400000-0x0000000000709000-memory.dmp

memory/2360-110-0x0000000000400000-0x0000000000709000-memory.dmp

memory/2360-111-0x0000000000A80000-0x0000000000B22000-memory.dmp

memory/2360-112-0x0000000000A80000-0x0000000000B22000-memory.dmp

memory/2360-116-0x0000000000400000-0x0000000000709000-memory.dmp

memory/2360-119-0x0000000000400000-0x0000000000709000-memory.dmp