Malware Analysis Report

2024-11-15 04:58

Sample ID 240625-nnswfazgkm
Target 8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4
SHA256 8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4
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

8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4

Threat Level: Known bad

The file 8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4 was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Socks5Systemz

Detect Socks5Systemz Payload

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

2024-06-25 11:32

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-25 11:32

Reported

2024-06-25 11:35

Platform

win10v2004-20240611-en

Max time kernel

142s

Max time network

135s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.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-A3715.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3708 wrote to memory of 4216 N/A C:\Users\Admin\AppData\Local\Temp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.exe C:\Users\Admin\AppData\Local\Temp\is-A3715.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp
PID 3708 wrote to memory of 4216 N/A C:\Users\Admin\AppData\Local\Temp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.exe C:\Users\Admin\AppData\Local\Temp\is-A3715.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp
PID 3708 wrote to memory of 4216 N/A C:\Users\Admin\AppData\Local\Temp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.exe C:\Users\Admin\AppData\Local\Temp\is-A3715.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp
PID 4216 wrote to memory of 3788 N/A C:\Users\Admin\AppData\Local\Temp\is-A3715.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 4216 wrote to memory of 3788 N/A C:\Users\Admin\AppData\Local\Temp\is-A3715.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 4216 wrote to memory of 3788 N/A C:\Users\Admin\AppData\Local\Temp\is-A3715.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 4216 wrote to memory of 876 N/A C:\Users\Admin\AppData\Local\Temp\is-A3715.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 4216 wrote to memory of 876 N/A C:\Users\Admin\AppData\Local\Temp\is-A3715.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 4216 wrote to memory of 876 N/A C:\Users\Admin\AppData\Local\Temp\is-A3715.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.exe

"C:\Users\Admin\AppData\Local\Temp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.exe"

C:\Users\Admin\AppData\Local\Temp\is-A3715.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp

"C:\Users\Admin\AppData\Local\Temp\is-A3715.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp" /SL5="$A0172,5070983,54272,C:\Users\Admin\AppData\Local\Temp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.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 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.160:443 www.bing.com tcp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 160.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.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 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
HK 141.98.234.31:53 bmwuidg.com udp
TR 94.156.8.80:80 bmwuidg.com tcp
US 8.8.8.8:53 31.234.98.141.in-addr.arpa udp
FR 195.154.185.134:2023 tcp
US 8.8.8.8:53 80.8.156.94.in-addr.arpa udp
US 8.8.8.8:53 134.185.154.195.in-addr.arpa udp

Files

memory/3708-1-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3708-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-A3715.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp

MD5 4432a9de5fb701b2be5a9dc45a63fd7e
SHA1 21d4ced081ca682aeccb62dd4eca0aff561629de
SHA256 b766d61ae8f3c4743b2533799355b483ec543fb98e158a02bab76e9b6319dd9d
SHA512 40ef72a9be46f601310a54fb390d35cd90f991043faa17c715b44cc80ce25a46eaf80dcf5bb5ae111742fab012dcbc71e88befbe12053e45ebed18522e5a7be2

memory/4216-13-0x0000000000400000-0x00000000004BA000-memory.dmp

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

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 266acaad5b14cce7536a3616ddaafcc0
SHA1 9526305efeabff0554aec83844ec0fdaa0fb4b30
SHA256 9cd6ae1a63f985120d0c67a8a4f0f2e01e47bc28f2e5af51b6adba63f245d0d4
SHA512 994fac24a549b74f71001f7f24058fd375f48edfbeab5be6c65e66326da407cc2a0e4820dac48e53834ebb9f0927bf0bcd517b46c80d317ed95b5593b57cc7f7

memory/3788-59-0x0000000000400000-0x000000000073A000-memory.dmp

memory/3788-60-0x0000000000400000-0x000000000073A000-memory.dmp

memory/3788-61-0x0000000000400000-0x000000000073A000-memory.dmp

memory/3788-64-0x0000000000400000-0x000000000073A000-memory.dmp

memory/3708-67-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4216-68-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/876-69-0x0000000000400000-0x000000000073A000-memory.dmp

memory/876-72-0x0000000000400000-0x000000000073A000-memory.dmp

memory/876-75-0x0000000000400000-0x000000000073A000-memory.dmp

memory/876-78-0x0000000000400000-0x000000000073A000-memory.dmp

memory/876-81-0x0000000000400000-0x000000000073A000-memory.dmp

memory/876-84-0x0000000000A00000-0x0000000000AA2000-memory.dmp

memory/876-86-0x0000000000400000-0x000000000073A000-memory.dmp

memory/876-91-0x0000000000400000-0x000000000073A000-memory.dmp

memory/876-94-0x0000000000400000-0x000000000073A000-memory.dmp

memory/876-97-0x0000000000400000-0x000000000073A000-memory.dmp

memory/876-100-0x0000000000400000-0x000000000073A000-memory.dmp

memory/876-103-0x0000000000400000-0x000000000073A000-memory.dmp

memory/876-106-0x0000000000400000-0x000000000073A000-memory.dmp

memory/876-108-0x0000000000A00000-0x0000000000AA2000-memory.dmp

memory/876-107-0x0000000000A00000-0x0000000000AA2000-memory.dmp

memory/876-112-0x0000000000400000-0x000000000073A000-memory.dmp

memory/876-115-0x0000000000400000-0x000000000073A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-25 11:32

Reported

2024-06-25 11:35

Platform

win11-20240508-en

Max time kernel

147s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.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 152.89.198.214 N/A N/A
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-R0DLI.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1780 wrote to memory of 3992 N/A C:\Users\Admin\AppData\Local\Temp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.exe C:\Users\Admin\AppData\Local\Temp\is-R0DLI.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp
PID 1780 wrote to memory of 3992 N/A C:\Users\Admin\AppData\Local\Temp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.exe C:\Users\Admin\AppData\Local\Temp\is-R0DLI.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp
PID 1780 wrote to memory of 3992 N/A C:\Users\Admin\AppData\Local\Temp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.exe C:\Users\Admin\AppData\Local\Temp\is-R0DLI.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp
PID 3992 wrote to memory of 2924 N/A C:\Users\Admin\AppData\Local\Temp\is-R0DLI.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 3992 wrote to memory of 2924 N/A C:\Users\Admin\AppData\Local\Temp\is-R0DLI.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 3992 wrote to memory of 2924 N/A C:\Users\Admin\AppData\Local\Temp\is-R0DLI.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 3992 wrote to memory of 1512 N/A C:\Users\Admin\AppData\Local\Temp\is-R0DLI.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 3992 wrote to memory of 1512 N/A C:\Users\Admin\AppData\Local\Temp\is-R0DLI.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe
PID 3992 wrote to memory of 1512 N/A C:\Users\Admin\AppData\Local\Temp\is-R0DLI.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp C:\Users\Admin\AppData\Local\MP3 RIP Free Edition\mp3ripfreeedition32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.exe

"C:\Users\Admin\AppData\Local\Temp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.exe"

C:\Users\Admin\AppData\Local\Temp\is-R0DLI.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp

"C:\Users\Admin\AppData\Local\Temp\is-R0DLI.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp" /SL5="$50216,5070983,54272,C:\Users\Admin\AppData\Local\Temp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.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 8.8.8.8.in-addr.arpa udp
LT 91.211.247.248:53 ejzgnsc.ua udp
US 8.8.8.8:53 248.247.211.91.in-addr.arpa udp
RU 152.89.198.214:53 ejzgnsc.ua udp
US 8.8.8.8:53 214.198.89.152.in-addr.arpa udp
LT 91.211.247.248:53 ejzgnsc.ua udp

Files

memory/1780-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1780-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-R0DLI.tmp\8b8e539891f62d1f6291059714555844d7595bb45e1232647adbd500347676c4.tmp

MD5 4432a9de5fb701b2be5a9dc45a63fd7e
SHA1 21d4ced081ca682aeccb62dd4eca0aff561629de
SHA256 b766d61ae8f3c4743b2533799355b483ec543fb98e158a02bab76e9b6319dd9d
SHA512 40ef72a9be46f601310a54fb390d35cd90f991043faa17c715b44cc80ce25a46eaf80dcf5bb5ae111742fab012dcbc71e88befbe12053e45ebed18522e5a7be2

memory/3992-16-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-7J1ON.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 266acaad5b14cce7536a3616ddaafcc0
SHA1 9526305efeabff0554aec83844ec0fdaa0fb4b30
SHA256 9cd6ae1a63f985120d0c67a8a4f0f2e01e47bc28f2e5af51b6adba63f245d0d4
SHA512 994fac24a549b74f71001f7f24058fd375f48edfbeab5be6c65e66326da407cc2a0e4820dac48e53834ebb9f0927bf0bcd517b46c80d317ed95b5593b57cc7f7

memory/2924-65-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2924-64-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2924-59-0x0000000000400000-0x000000000073A000-memory.dmp

memory/2924-60-0x0000000000400000-0x000000000073A000-memory.dmp

memory/1512-67-0x0000000000400000-0x000000000073A000-memory.dmp

memory/1512-69-0x0000000000400000-0x000000000073A000-memory.dmp

memory/1780-70-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3992-71-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/1512-72-0x0000000000400000-0x000000000073A000-memory.dmp

memory/1512-75-0x0000000000400000-0x000000000073A000-memory.dmp

memory/1512-76-0x0000000000400000-0x000000000073A000-memory.dmp

memory/1512-79-0x0000000000400000-0x000000000073A000-memory.dmp

memory/1512-82-0x0000000000400000-0x000000000073A000-memory.dmp

memory/1512-85-0x0000000000400000-0x000000000073A000-memory.dmp

memory/1512-87-0x0000000000A90000-0x0000000000B32000-memory.dmp

memory/1512-91-0x0000000000400000-0x000000000073A000-memory.dmp

memory/1512-96-0x0000000000400000-0x000000000073A000-memory.dmp

memory/1512-99-0x0000000000400000-0x000000000073A000-memory.dmp

memory/1512-102-0x0000000000400000-0x000000000073A000-memory.dmp

memory/1512-105-0x0000000000400000-0x000000000073A000-memory.dmp

memory/1512-108-0x0000000000400000-0x000000000073A000-memory.dmp

memory/1512-111-0x0000000000400000-0x000000000073A000-memory.dmp

memory/1512-114-0x0000000000400000-0x000000000073A000-memory.dmp

memory/1512-117-0x0000000000400000-0x000000000073A000-memory.dmp