Malware Analysis Report

2024-10-10 10:40

Sample ID 240611-a7zansyakj
Target c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb
SHA256 c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb
Tags
socks5systemz botnet discovery
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb

Threat Level: Known bad

The file c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Detect Socks5Systemz Payload

Socks5Systemz

Loads dropped DLL

Executes dropped EXE

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

2024-06-11 00:51

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-11 00:51

Reported

2024-06-11 00:54

Platform

win11-20240419-en

Max time kernel

147s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.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 45.155.250.90 N/A N/A
Destination IP 91.211.247.248 N/A N/A
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-7IAV9.tmp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3932 wrote to memory of 2736 N/A C:\Users\Admin\AppData\Local\Temp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.exe C:\Users\Admin\AppData\Local\Temp\is-7IAV9.tmp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.tmp
PID 3932 wrote to memory of 2736 N/A C:\Users\Admin\AppData\Local\Temp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.exe C:\Users\Admin\AppData\Local\Temp\is-7IAV9.tmp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.tmp
PID 3932 wrote to memory of 2736 N/A C:\Users\Admin\AppData\Local\Temp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.exe C:\Users\Admin\AppData\Local\Temp\is-7IAV9.tmp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.tmp
PID 2736 wrote to memory of 2180 N/A C:\Users\Admin\AppData\Local\Temp\is-7IAV9.tmp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.tmp C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe
PID 2736 wrote to memory of 2180 N/A C:\Users\Admin\AppData\Local\Temp\is-7IAV9.tmp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.tmp C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe
PID 2736 wrote to memory of 2180 N/A C:\Users\Admin\AppData\Local\Temp\is-7IAV9.tmp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.tmp C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe
PID 2736 wrote to memory of 2936 N/A C:\Users\Admin\AppData\Local\Temp\is-7IAV9.tmp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.tmp C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe
PID 2736 wrote to memory of 2936 N/A C:\Users\Admin\AppData\Local\Temp\is-7IAV9.tmp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.tmp C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe
PID 2736 wrote to memory of 2936 N/A C:\Users\Admin\AppData\Local\Temp\is-7IAV9.tmp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.tmp C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.exe

"C:\Users\Admin\AppData\Local\Temp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.exe"

C:\Users\Admin\AppData\Local\Temp\is-7IAV9.tmp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.tmp

"C:\Users\Admin\AppData\Local\Temp\is-7IAV9.tmp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.tmp" /SL5="$500DA,4711945,54272,C:\Users\Admin\AppData\Local\Temp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.exe"

C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe

"C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe" -i

C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe

"C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe" -s

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
SE 45.155.250.90:53 boipsjo.com udp
US 8.8.8.8:53 90.250.155.45.in-addr.arpa udp
RU 152.89.198.214:53 boipsjo.com udp
US 8.8.8.8:53 214.198.89.152.in-addr.arpa udp
LT 91.211.247.248:53 boipsjo.com udp
US 8.8.8.8:53 248.247.211.91.in-addr.arpa udp

Files

memory/3932-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3932-3-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-7IAV9.tmp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.tmp

MD5 da3e3293eadae0b9e8e0bb85b53bf263
SHA1 6fd7ba9a4f76f8500f7ec3d820f70ca0c869173f
SHA256 ecf5f7145a55f9014f86014fd3d9a6048b8f29e653409604e4d12cb1bda2302d
SHA512 c1b4a03f7f657f1db5bbf21f68ebce7373b90135698eb5fe4c432630e7066f0c89eeddd0f6cbb0af631ad62026992503df42e31e6999b166a541044c688a0fb8

memory/2736-12-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-H8QHO.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe

MD5 ba7ba4bde1514b0ab53879759f6d4c9b
SHA1 169edab865f64cfce4543ae28123e7d6cee0e89a
SHA256 37898792de8199f935688e81401267c54df693da75b3adb5330f8014da705288
SHA512 9596d6853750d128646215e5f6ce5c6def9fe974b2375cec6c2b046dbe66c5f165960629b1c3f3d3d1292af8219071764d69c7f27676ee3f824a7ef2dea97734

memory/2180-59-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/2180-64-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/2180-62-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/2936-66-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/2936-68-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/3932-69-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2736-70-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/2936-71-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/2936-75-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/2936-74-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/2936-78-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/2936-81-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/2936-84-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/2936-86-0x0000000000A00000-0x0000000000AA2000-memory.dmp

memory/2936-88-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/2936-94-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/2936-97-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/2936-100-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/2936-103-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/2936-106-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/2936-109-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/2936-112-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/2936-115-0x0000000000400000-0x00000000006DD000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-11 00:51

Reported

2024-06-11 00:54

Platform

win10v2004-20240508-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.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
Destination IP 91.211.247.248 N/A N/A
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-GVV98.tmp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3040 wrote to memory of 872 N/A C:\Users\Admin\AppData\Local\Temp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.exe C:\Users\Admin\AppData\Local\Temp\is-GVV98.tmp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.tmp
PID 3040 wrote to memory of 872 N/A C:\Users\Admin\AppData\Local\Temp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.exe C:\Users\Admin\AppData\Local\Temp\is-GVV98.tmp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.tmp
PID 3040 wrote to memory of 872 N/A C:\Users\Admin\AppData\Local\Temp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.exe C:\Users\Admin\AppData\Local\Temp\is-GVV98.tmp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.tmp
PID 872 wrote to memory of 4900 N/A C:\Users\Admin\AppData\Local\Temp\is-GVV98.tmp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.tmp C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe
PID 872 wrote to memory of 4900 N/A C:\Users\Admin\AppData\Local\Temp\is-GVV98.tmp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.tmp C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe
PID 872 wrote to memory of 4900 N/A C:\Users\Admin\AppData\Local\Temp\is-GVV98.tmp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.tmp C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe
PID 872 wrote to memory of 3160 N/A C:\Users\Admin\AppData\Local\Temp\is-GVV98.tmp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.tmp C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe
PID 872 wrote to memory of 3160 N/A C:\Users\Admin\AppData\Local\Temp\is-GVV98.tmp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.tmp C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe
PID 872 wrote to memory of 3160 N/A C:\Users\Admin\AppData\Local\Temp\is-GVV98.tmp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.tmp C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.exe

"C:\Users\Admin\AppData\Local\Temp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.exe"

C:\Users\Admin\AppData\Local\Temp\is-GVV98.tmp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.tmp

"C:\Users\Admin\AppData\Local\Temp\is-GVV98.tmp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.tmp" /SL5="$60064,4711945,54272,C:\Users\Admin\AppData\Local\Temp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.exe"

C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe

"C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe" -i

C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe

"C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe" -s

Network

Country Destination Domain Proto
US 52.111.229.43:443 tcp
RU 152.89.198.214:53 bmaqseo.com udp
US 8.8.8.8:53 214.198.89.152.in-addr.arpa udp
RU 152.89.198.214:53 bmaqseo.com udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
LT 91.211.247.248:53 bmaqseo.com udp
US 8.8.8.8:53 248.247.211.91.in-addr.arpa udp

Files

memory/3040-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3040-3-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-GVV98.tmp\c4fcb58ccfcbd6c286f2a6faa125f220f147d6b966a1328b36be3b18f18e53fb.tmp

MD5 da3e3293eadae0b9e8e0bb85b53bf263
SHA1 6fd7ba9a4f76f8500f7ec3d820f70ca0c869173f
SHA256 ecf5f7145a55f9014f86014fd3d9a6048b8f29e653409604e4d12cb1bda2302d
SHA512 c1b4a03f7f657f1db5bbf21f68ebce7373b90135698eb5fe4c432630e7066f0c89eeddd0f6cbb0af631ad62026992503df42e31e6999b166a541044c688a0fb8

memory/872-12-0x0000000000400000-0x00000000004BA000-memory.dmp

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

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe

MD5 ba7ba4bde1514b0ab53879759f6d4c9b
SHA1 169edab865f64cfce4543ae28123e7d6cee0e89a
SHA256 37898792de8199f935688e81401267c54df693da75b3adb5330f8014da705288
SHA512 9596d6853750d128646215e5f6ce5c6def9fe974b2375cec6c2b046dbe66c5f165960629b1c3f3d3d1292af8219071764d69c7f27676ee3f824a7ef2dea97734

memory/4900-59-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/4900-60-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/4900-62-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/4900-65-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/3160-68-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/3040-69-0x0000000000400000-0x0000000000414000-memory.dmp

memory/872-70-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/3160-71-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/3160-74-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/3160-77-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/3160-80-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/3160-83-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/3160-86-0x0000000000910000-0x00000000009B2000-memory.dmp

memory/3160-89-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/3160-94-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/3160-97-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/3160-100-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/3160-103-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/3160-106-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/3160-109-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/3160-112-0x0000000000400000-0x00000000006DD000-memory.dmp

memory/3160-115-0x0000000000400000-0x00000000006DD000-memory.dmp