Malware Analysis Report

2024-11-15 05:01

Sample ID 240530-ydntvagg4x
Target 16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825
SHA256 16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825
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

16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825

Threat Level: Known bad

The file 16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825 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

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-30 19:40

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-30 19:40

Reported

2024-05-30 19:42

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.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

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-SQBVV.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 116 wrote to memory of 3096 N/A C:\Users\Admin\AppData\Local\Temp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.exe C:\Users\Admin\AppData\Local\Temp\is-SQBVV.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp
PID 116 wrote to memory of 3096 N/A C:\Users\Admin\AppData\Local\Temp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.exe C:\Users\Admin\AppData\Local\Temp\is-SQBVV.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp
PID 116 wrote to memory of 3096 N/A C:\Users\Admin\AppData\Local\Temp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.exe C:\Users\Admin\AppData\Local\Temp\is-SQBVV.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp
PID 3096 wrote to memory of 2312 N/A C:\Users\Admin\AppData\Local\Temp\is-SQBVV.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 3096 wrote to memory of 2312 N/A C:\Users\Admin\AppData\Local\Temp\is-SQBVV.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 3096 wrote to memory of 2312 N/A C:\Users\Admin\AppData\Local\Temp\is-SQBVV.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 3096 wrote to memory of 3336 N/A C:\Users\Admin\AppData\Local\Temp\is-SQBVV.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 3096 wrote to memory of 3336 N/A C:\Users\Admin\AppData\Local\Temp\is-SQBVV.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 3096 wrote to memory of 3336 N/A C:\Users\Admin\AppData\Local\Temp\is-SQBVV.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.exe

"C:\Users\Admin\AppData\Local\Temp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.exe"

C:\Users\Admin\AppData\Local\Temp\is-SQBVV.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp

"C:\Users\Admin\AppData\Local\Temp\is-SQBVV.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp" /SL5="$80092,5547890,54272,C:\Users\Admin\AppData\Local\Temp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.exe"

C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

"C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -i

C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

"C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -s

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
BE 2.17.196.74:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
BE 2.17.196.74:443 www.bing.com tcp
US 8.8.8.8:53 74.196.17.2.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
LT 91.211.247.248:53 dtzuoda.info udp
BG 79.110.49.184:80 dtzuoda.info tcp
US 8.8.8.8:53 248.247.211.91.in-addr.arpa udp
BG 79.110.49.184:80 dtzuoda.info tcp
BG 79.110.49.184:80 dtzuoda.info tcp

Files

memory/116-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/116-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-SQBVV.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp

MD5 ef9105d68de970efad785e01b21e4e2b
SHA1 7fe8801a3e86814972da63a7a943bdc5e31d8888
SHA256 381198ca0669ab760f6f9b84e39c39ab5e870f65d17d03ed0dc572a1c602364a
SHA512 e388cbf32a4d833c0e4c6c1a129515b4d12eac5b333f2aec39e741d3a0da856c5923d47cf4d3083ad030f7f07b9214261b2b9119720920dd42929eeb617e779c

C:\Users\Admin\AppData\Local\Temp\is-ONGF0.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

memory/3096-19-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-ONGF0.tmp\_isetup\_isdecmp.dll

MD5 b6f11a0ab7715f570f45900a1fe84732
SHA1 77b1201e535445af5ea94c1b03c0a1c34d67a77b
SHA256 e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67
SHA512 78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

MD5 06234e1821a4b95d272b8edb195195dd
SHA1 9fbdead1e8c4b31aac9f0c41bde7abf90e79f1ac
SHA256 43dff468672483df85fa3f47f355f804f60eb1dc0373a06d29e69cd98cd52452
SHA512 1a5b40c8997c20e583f2d2d3d7d5bd45d1a7f3ab14a544d1e641f998982ec01fc69a93ba51df9ae4f5bffd1ea7fced317fac78b12a57832290039015e3ade50a

memory/2312-65-0x0000000000400000-0x0000000000745000-memory.dmp

memory/2312-66-0x0000000000400000-0x0000000000745000-memory.dmp

memory/2312-69-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3336-73-0x0000000000400000-0x0000000000745000-memory.dmp

memory/116-74-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3096-75-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/3336-76-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3336-79-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3336-82-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3336-85-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3336-88-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3336-91-0x0000000000930000-0x00000000009D2000-memory.dmp

memory/3336-94-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3336-99-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3336-102-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3336-105-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3336-108-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3336-111-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3336-114-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3336-117-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3336-120-0x0000000000400000-0x0000000000745000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-30 19:40

Reported

2024-05-30 19:42

Platform

win11-20240426-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.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

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-6ICIJ.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4596 wrote to memory of 3432 N/A C:\Users\Admin\AppData\Local\Temp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.exe C:\Users\Admin\AppData\Local\Temp\is-6ICIJ.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp
PID 4596 wrote to memory of 3432 N/A C:\Users\Admin\AppData\Local\Temp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.exe C:\Users\Admin\AppData\Local\Temp\is-6ICIJ.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp
PID 4596 wrote to memory of 3432 N/A C:\Users\Admin\AppData\Local\Temp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.exe C:\Users\Admin\AppData\Local\Temp\is-6ICIJ.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp
PID 3432 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\is-6ICIJ.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 3432 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\is-6ICIJ.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 3432 wrote to memory of 2496 N/A C:\Users\Admin\AppData\Local\Temp\is-6ICIJ.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 3432 wrote to memory of 3332 N/A C:\Users\Admin\AppData\Local\Temp\is-6ICIJ.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 3432 wrote to memory of 3332 N/A C:\Users\Admin\AppData\Local\Temp\is-6ICIJ.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 3432 wrote to memory of 3332 N/A C:\Users\Admin\AppData\Local\Temp\is-6ICIJ.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.exe

"C:\Users\Admin\AppData\Local\Temp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.exe"

C:\Users\Admin\AppData\Local\Temp\is-6ICIJ.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp

"C:\Users\Admin\AppData\Local\Temp\is-6ICIJ.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp" /SL5="$4023E,5547890,54272,C:\Users\Admin\AppData\Local\Temp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.exe"

C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

"C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -i

C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

"C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -s

Network

Country Destination Domain Proto
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
LT 91.211.247.248:53 ebpyeey.ua udp
BG 79.110.49.184:80 ebpyeey.ua tcp
BG 79.110.49.184:80 ebpyeey.ua tcp
BG 79.110.49.184:80 ebpyeey.ua tcp

Files

memory/4596-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4596-3-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-6ICIJ.tmp\16e0fef131c34d95ba6611400399c7ac46c1a8db8052b91a2c9af32534d3c825.tmp

MD5 ef9105d68de970efad785e01b21e4e2b
SHA1 7fe8801a3e86814972da63a7a943bdc5e31d8888
SHA256 381198ca0669ab760f6f9b84e39c39ab5e870f65d17d03ed0dc572a1c602364a
SHA512 e388cbf32a4d833c0e4c6c1a129515b4d12eac5b333f2aec39e741d3a0da856c5923d47cf4d3083ad030f7f07b9214261b2b9119720920dd42929eeb617e779c

memory/3432-10-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-32SHN.tmp\_isetup\_isdecmp.dll

MD5 b6f11a0ab7715f570f45900a1fe84732
SHA1 77b1201e535445af5ea94c1b03c0a1c34d67a77b
SHA256 e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67
SHA512 78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

C:\Users\Admin\AppData\Local\Temp\is-32SHN.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

MD5 06234e1821a4b95d272b8edb195195dd
SHA1 9fbdead1e8c4b31aac9f0c41bde7abf90e79f1ac
SHA256 43dff468672483df85fa3f47f355f804f60eb1dc0373a06d29e69cd98cd52452
SHA512 1a5b40c8997c20e583f2d2d3d7d5bd45d1a7f3ab14a544d1e641f998982ec01fc69a93ba51df9ae4f5bffd1ea7fced317fac78b12a57832290039015e3ade50a

memory/2496-65-0x0000000000400000-0x0000000000745000-memory.dmp

memory/2496-66-0x0000000000400000-0x0000000000745000-memory.dmp

memory/2496-71-0x0000000000400000-0x0000000000745000-memory.dmp

memory/2496-70-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3332-75-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3332-74-0x0000000000400000-0x0000000000745000-memory.dmp

memory/4596-76-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3432-77-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/3332-78-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3332-81-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3332-82-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3332-85-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3332-88-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3332-91-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3332-94-0x0000000000B40000-0x0000000000BE2000-memory.dmp

memory/3332-96-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3332-101-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3332-104-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3332-107-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3332-110-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3332-113-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3332-116-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3332-119-0x0000000000400000-0x0000000000745000-memory.dmp

memory/3332-122-0x0000000000400000-0x0000000000745000-memory.dmp