Malware Analysis Report

2024-11-15 05:01

Sample ID 240530-vmarssfg42
Target 1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d
SHA256 1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d
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

1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d

Threat Level: Known bad

The file 1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Detect Socks5Systemz Payload

Socks5Systemz

Loads dropped DLL

Unexpected DNS network traffic destination

Executes dropped EXE

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

2024-05-30 17:05

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-30 17:05

Reported

2024-05-30 17:08

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.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 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-A19S1.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2536 wrote to memory of 2600 N/A C:\Users\Admin\AppData\Local\Temp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.exe C:\Users\Admin\AppData\Local\Temp\is-A19S1.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp
PID 2536 wrote to memory of 2600 N/A C:\Users\Admin\AppData\Local\Temp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.exe C:\Users\Admin\AppData\Local\Temp\is-A19S1.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp
PID 2536 wrote to memory of 2600 N/A C:\Users\Admin\AppData\Local\Temp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.exe C:\Users\Admin\AppData\Local\Temp\is-A19S1.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp
PID 2600 wrote to memory of 2796 N/A C:\Users\Admin\AppData\Local\Temp\is-A19S1.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 2600 wrote to memory of 2796 N/A C:\Users\Admin\AppData\Local\Temp\is-A19S1.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 2600 wrote to memory of 2796 N/A C:\Users\Admin\AppData\Local\Temp\is-A19S1.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 2600 wrote to memory of 5052 N/A C:\Users\Admin\AppData\Local\Temp\is-A19S1.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 2600 wrote to memory of 5052 N/A C:\Users\Admin\AppData\Local\Temp\is-A19S1.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 2600 wrote to memory of 5052 N/A C:\Users\Admin\AppData\Local\Temp\is-A19S1.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.exe

"C:\Users\Admin\AppData\Local\Temp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.exe"

C:\Users\Admin\AppData\Local\Temp\is-A19S1.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp

"C:\Users\Admin\AppData\Local\Temp\is-A19S1.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp" /SL5="$C003C,5603052,54272,C:\Users\Admin\AppData\Local\Temp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 101.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
NL 23.62.61.72:443 www.bing.com tcp
US 8.8.8.8:53 72.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 17.14.97.104.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.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 57.169.31.20.in-addr.arpa udp
RU 152.89.198.214:53 bwfnqnb.com udp
BG 79.110.49.184:80 bwfnqnb.com tcp
US 8.8.8.8:53 214.198.89.152.in-addr.arpa udp
BG 79.110.49.184:80 bwfnqnb.com tcp
BG 79.110.49.184:80 tcp

Files

memory/2536-1-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2536-0-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-A19S1.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp

MD5 0618c738cf49fa5f045702c69585d459
SHA1 c71706644125d08fabf067cbe06030fb9795a2e8
SHA256 32d63dc7b012c5855667c4b809b98b42b2a841d38e5350fe7b603b46a74d484e
SHA512 bd042294fe9a09b01013d94211cf89ec4c7b1bfec384eb717a25ea864e2c9154ba082b5d9ccc9fd5e04d3b551f7bfdfea5d96d74056e5e27811a9cc4aaecc43a

memory/2600-7-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-5Q630.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

C:\Users\Admin\AppData\Local\Temp\is-5Q630.tmp\_isetup\_isdecmp.dll

MD5 b6f11a0ab7715f570f45900a1fe84732
SHA1 77b1201e535445af5ea94c1b03c0a1c34d67a77b
SHA256 e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67
SHA512 78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

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

MD5 d5401a0b3ab39de1b6cff6cb3707e53a
SHA1 ba292408dd8ff5a0d2c542c93cae499e5cfb8e82
SHA256 0b8ab5f49407ba2f064cea8df59ab61f385181dd40153d9c720734cd708220c2
SHA512 5fb874d2aea110a3d4837a3ec87cb8db3fc40c082ad3ce4ba7ea586bafe0ec86bbb2e188bd31c3838dd4b7aa618494936d59fa6f171eb77215b778dedbf98a2f

memory/2796-68-0x0000000000400000-0x0000000000745000-memory.dmp

memory/2796-69-0x0000000000400000-0x0000000000745000-memory.dmp

memory/5052-72-0x0000000000400000-0x0000000000745000-memory.dmp

memory/2796-65-0x0000000000400000-0x0000000000745000-memory.dmp

memory/5052-74-0x0000000000400000-0x0000000000745000-memory.dmp

memory/2536-75-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2600-76-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/5052-77-0x0000000000400000-0x0000000000745000-memory.dmp

memory/5052-81-0x0000000000400000-0x0000000000745000-memory.dmp

memory/5052-80-0x0000000000400000-0x0000000000745000-memory.dmp

memory/5052-84-0x0000000000400000-0x0000000000745000-memory.dmp

memory/5052-87-0x0000000000400000-0x0000000000745000-memory.dmp

memory/5052-90-0x0000000000400000-0x0000000000745000-memory.dmp

memory/5052-95-0x0000000000400000-0x0000000000745000-memory.dmp

memory/5052-94-0x00000000008F0000-0x0000000000992000-memory.dmp

memory/5052-101-0x0000000000400000-0x0000000000745000-memory.dmp

memory/5052-104-0x0000000000400000-0x0000000000745000-memory.dmp

memory/5052-107-0x0000000000400000-0x0000000000745000-memory.dmp

memory/5052-110-0x0000000000400000-0x0000000000745000-memory.dmp

memory/5052-113-0x0000000000400000-0x0000000000745000-memory.dmp

memory/5052-116-0x0000000000400000-0x0000000000745000-memory.dmp

memory/5052-119-0x0000000000400000-0x0000000000745000-memory.dmp

memory/5052-122-0x0000000000400000-0x0000000000745000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-30 17:05

Reported

2024-05-30 17:08

Platform

win11-20240508-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.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-ASCCD.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 404 wrote to memory of 4744 N/A C:\Users\Admin\AppData\Local\Temp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.exe C:\Users\Admin\AppData\Local\Temp\is-ASCCD.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp
PID 404 wrote to memory of 4744 N/A C:\Users\Admin\AppData\Local\Temp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.exe C:\Users\Admin\AppData\Local\Temp\is-ASCCD.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp
PID 404 wrote to memory of 4744 N/A C:\Users\Admin\AppData\Local\Temp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.exe C:\Users\Admin\AppData\Local\Temp\is-ASCCD.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp
PID 4744 wrote to memory of 1656 N/A C:\Users\Admin\AppData\Local\Temp\is-ASCCD.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 4744 wrote to memory of 1656 N/A C:\Users\Admin\AppData\Local\Temp\is-ASCCD.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 4744 wrote to memory of 1656 N/A C:\Users\Admin\AppData\Local\Temp\is-ASCCD.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 4744 wrote to memory of 2056 N/A C:\Users\Admin\AppData\Local\Temp\is-ASCCD.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 4744 wrote to memory of 2056 N/A C:\Users\Admin\AppData\Local\Temp\is-ASCCD.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
PID 4744 wrote to memory of 2056 N/A C:\Users\Admin\AppData\Local\Temp\is-ASCCD.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.exe

"C:\Users\Admin\AppData\Local\Temp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.exe"

C:\Users\Admin\AppData\Local\Temp\is-ASCCD.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp

"C:\Users\Admin\AppData\Local\Temp\is-ASCCD.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp" /SL5="$60226,5603052,54272,C:\Users\Admin\AppData\Local\Temp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.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
LT 91.211.247.248:53 bvdgmvq.com udp
BG 79.110.49.184:80 bvdgmvq.com tcp
BG 79.110.49.184:80 bvdgmvq.com tcp
BG 79.110.49.184:80 bvdgmvq.com tcp

Files

memory/404-2-0x0000000000401000-0x000000000040B000-memory.dmp

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

C:\Users\Admin\AppData\Local\Temp\is-ASCCD.tmp\1170047a4913acd0e63e96e57c381a6d969aff440f145f111ed39f7710e1209d.tmp

MD5 0618c738cf49fa5f045702c69585d459
SHA1 c71706644125d08fabf067cbe06030fb9795a2e8
SHA256 32d63dc7b012c5855667c4b809b98b42b2a841d38e5350fe7b603b46a74d484e
SHA512 bd042294fe9a09b01013d94211cf89ec4c7b1bfec384eb717a25ea864e2c9154ba082b5d9ccc9fd5e04d3b551f7bfdfea5d96d74056e5e27811a9cc4aaecc43a

memory/4744-10-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-NF0FJ.tmp\_isetup\_isdecmp.dll

MD5 b6f11a0ab7715f570f45900a1fe84732
SHA1 77b1201e535445af5ea94c1b03c0a1c34d67a77b
SHA256 e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67
SHA512 78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

C:\Users\Admin\AppData\Local\Temp\is-NF0FJ.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 d5401a0b3ab39de1b6cff6cb3707e53a
SHA1 ba292408dd8ff5a0d2c542c93cae499e5cfb8e82
SHA256 0b8ab5f49407ba2f064cea8df59ab61f385181dd40153d9c720734cd708220c2
SHA512 5fb874d2aea110a3d4837a3ec87cb8db3fc40c082ad3ce4ba7ea586bafe0ec86bbb2e188bd31c3838dd4b7aa618494936d59fa6f171eb77215b778dedbf98a2f

memory/1656-70-0x0000000000400000-0x0000000000745000-memory.dmp

memory/1656-65-0x0000000000400000-0x0000000000745000-memory.dmp

memory/1656-68-0x0000000000400000-0x0000000000745000-memory.dmp

memory/2056-73-0x0000000000400000-0x0000000000745000-memory.dmp

memory/404-74-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4744-75-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/2056-76-0x0000000000400000-0x0000000000745000-memory.dmp

memory/2056-79-0x0000000000400000-0x0000000000745000-memory.dmp

memory/2056-82-0x0000000000400000-0x0000000000745000-memory.dmp

memory/2056-85-0x0000000000400000-0x0000000000745000-memory.dmp

memory/2056-88-0x0000000000400000-0x0000000000745000-memory.dmp

memory/2056-91-0x0000000000A30000-0x0000000000AD2000-memory.dmp

memory/2056-93-0x0000000000400000-0x0000000000745000-memory.dmp

memory/2056-98-0x0000000000400000-0x0000000000745000-memory.dmp

memory/2056-101-0x0000000000400000-0x0000000000745000-memory.dmp

memory/2056-104-0x0000000000400000-0x0000000000745000-memory.dmp

memory/2056-107-0x0000000000400000-0x0000000000745000-memory.dmp

memory/2056-110-0x0000000000400000-0x0000000000745000-memory.dmp

memory/2056-113-0x0000000000400000-0x0000000000745000-memory.dmp

memory/2056-116-0x0000000000400000-0x0000000000745000-memory.dmp

memory/2056-119-0x0000000000400000-0x0000000000745000-memory.dmp