Malware Analysis Report

2025-08-10 13:49

Sample ID 240803-2fmlcaxepr
Target 7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5
SHA256 7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5
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

7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5

Threat Level: Known bad

The file 7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5 was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Socks5Systemz

Detect Socks5Systemz Payload

Loads dropped DLL

Unexpected DNS network traffic destination

Executes dropped EXE

Checks installed software on the system

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-03 22:31

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-03 22:31

Reported

2024-08-03 22:34

Platform

win10v2004-20240802-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.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 152.89.198.214 N/A N/A

Checks installed software on the system

discovery

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\is-3NNMN.tmp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.tmp N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-3NNMN.tmp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 920 wrote to memory of 4324 N/A C:\Users\Admin\AppData\Local\Temp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.exe C:\Users\Admin\AppData\Local\Temp\is-3NNMN.tmp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.tmp
PID 920 wrote to memory of 4324 N/A C:\Users\Admin\AppData\Local\Temp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.exe C:\Users\Admin\AppData\Local\Temp\is-3NNMN.tmp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.tmp
PID 920 wrote to memory of 4324 N/A C:\Users\Admin\AppData\Local\Temp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.exe C:\Users\Admin\AppData\Local\Temp\is-3NNMN.tmp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.tmp
PID 4324 wrote to memory of 2172 N/A C:\Users\Admin\AppData\Local\Temp\is-3NNMN.tmp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 4324 wrote to memory of 2172 N/A C:\Users\Admin\AppData\Local\Temp\is-3NNMN.tmp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 4324 wrote to memory of 2172 N/A C:\Users\Admin\AppData\Local\Temp\is-3NNMN.tmp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 4324 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\is-3NNMN.tmp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 4324 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\is-3NNMN.tmp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 4324 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\is-3NNMN.tmp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe

Processes

C:\Users\Admin\AppData\Local\Temp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.exe

"C:\Users\Admin\AppData\Local\Temp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.exe"

C:\Users\Admin\AppData\Local\Temp\is-3NNMN.tmp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.tmp

"C:\Users\Admin\AppData\Local\Temp\is-3NNMN.tmp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.tmp" /SL5="$800F6,3735475,54272,C:\Users\Admin\AppData\Local\Temp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.exe"

C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe

"C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe" -i

C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe

"C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe" -s

Network

Country Destination Domain Proto
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
RU 152.89.198.214:53 ermibko.ua udp
CH 185.196.8.214:80 ermibko.ua tcp
NL 45.156.23.96:2023 tcp
US 8.8.8.8:53 214.198.89.152.in-addr.arpa udp
US 8.8.8.8:53 214.8.196.185.in-addr.arpa udp
US 8.8.8.8:53 96.23.156.45.in-addr.arpa udp

Files

memory/920-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/920-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-3NNMN.tmp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.tmp

MD5 96e2c8db3dd8e1f3632aab3b400e4b9a
SHA1 4272048cddf5a17cee879c2c421f61e33baeff69
SHA256 624f7af3f2c4baa83666b9d02935116368c7660d5ee7059704f1d7279cde4cf2
SHA512 1d1642d10d31bf54e78fa6b3bba5e31b4fe745f1834d61dcf5ffd1d99934c1d7ba3ecc4832d0c3519380f5ded71632bf084ad4cfb3f74785e54d434508a8e984

memory/4324-10-0x0000000000400000-0x00000000004BD000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-UP05H.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe

MD5 5e0a8ffd2f356a2a76265f2cf335f67a
SHA1 3ecfb5f97f8eb6a4f0682a526318054e2348c9e3
SHA256 858e9b948f89b35e5686aef218bddaf698569739159ef8162640bbcadf56238e
SHA512 c2201cd29d3edaf5e1b292a89902ea9e833e1ec4ee3d2a2a53563de1300330b5f5925da6a02c34b3c5c451569e51b0d5626f972141fe6493c315b55cd151cf49

memory/2172-52-0x0000000000400000-0x000000000086E000-memory.dmp

memory/2172-53-0x0000000000400000-0x000000000086E000-memory.dmp

memory/2172-55-0x0000000000400000-0x000000000086E000-memory.dmp

memory/2172-57-0x0000000000400000-0x000000000086E000-memory.dmp

memory/920-60-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4324-61-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/2996-62-0x0000000000400000-0x000000000086E000-memory.dmp

memory/2996-65-0x0000000000400000-0x000000000086E000-memory.dmp

memory/2996-68-0x0000000000400000-0x000000000086E000-memory.dmp

memory/2996-71-0x0000000000400000-0x000000000086E000-memory.dmp

memory/2996-74-0x0000000000400000-0x000000000086E000-memory.dmp

memory/2996-77-0x00000000009C0000-0x0000000000A62000-memory.dmp

memory/2996-79-0x0000000000400000-0x000000000086E000-memory.dmp

memory/2996-84-0x0000000000400000-0x000000000086E000-memory.dmp

memory/2996-87-0x0000000000400000-0x000000000086E000-memory.dmp

memory/2996-90-0x0000000000400000-0x000000000086E000-memory.dmp

memory/2996-93-0x0000000000400000-0x000000000086E000-memory.dmp

memory/2996-96-0x0000000000400000-0x000000000086E000-memory.dmp

memory/2996-99-0x0000000000400000-0x000000000086E000-memory.dmp

memory/2996-100-0x00000000009C0000-0x0000000000A62000-memory.dmp

memory/2996-101-0x00000000009C0000-0x0000000000A62000-memory.dmp

memory/2996-105-0x0000000000400000-0x000000000086E000-memory.dmp

memory/2996-108-0x0000000000400000-0x000000000086E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-03 22:31

Reported

2024-08-03 22:34

Platform

win11-20240802-en

Max time kernel

141s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\is-O9G3R.tmp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.tmp N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-O9G3R.tmp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 976 wrote to memory of 1572 N/A C:\Users\Admin\AppData\Local\Temp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.exe C:\Users\Admin\AppData\Local\Temp\is-O9G3R.tmp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.tmp
PID 976 wrote to memory of 1572 N/A C:\Users\Admin\AppData\Local\Temp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.exe C:\Users\Admin\AppData\Local\Temp\is-O9G3R.tmp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.tmp
PID 976 wrote to memory of 1572 N/A C:\Users\Admin\AppData\Local\Temp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.exe C:\Users\Admin\AppData\Local\Temp\is-O9G3R.tmp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.tmp
PID 1572 wrote to memory of 3684 N/A C:\Users\Admin\AppData\Local\Temp\is-O9G3R.tmp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 1572 wrote to memory of 3684 N/A C:\Users\Admin\AppData\Local\Temp\is-O9G3R.tmp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 1572 wrote to memory of 3684 N/A C:\Users\Admin\AppData\Local\Temp\is-O9G3R.tmp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 1572 wrote to memory of 4944 N/A C:\Users\Admin\AppData\Local\Temp\is-O9G3R.tmp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 1572 wrote to memory of 4944 N/A C:\Users\Admin\AppData\Local\Temp\is-O9G3R.tmp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 1572 wrote to memory of 4944 N/A C:\Users\Admin\AppData\Local\Temp\is-O9G3R.tmp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe

Processes

C:\Users\Admin\AppData\Local\Temp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.exe

"C:\Users\Admin\AppData\Local\Temp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.exe"

C:\Users\Admin\AppData\Local\Temp\is-O9G3R.tmp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.tmp

"C:\Users\Admin\AppData\Local\Temp\is-O9G3R.tmp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.tmp" /SL5="$501A4,3735475,54272,C:\Users\Admin\AppData\Local\Temp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.exe"

C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe

"C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe" -i

C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe

"C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe" -s

Network

Country Destination Domain Proto
HK 141.98.234.31:53 cczoxwy.net udp
CH 185.196.8.214:80 cczoxwy.net tcp
US 8.8.8.8:53 31.234.98.141.in-addr.arpa udp
NL 89.105.201.183:2023 tcp
US 8.8.8.8:53 183.201.105.89.in-addr.arpa udp
US 8.8.8.8:53 214.8.196.185.in-addr.arpa udp

Files

memory/976-2-0x0000000000401000-0x000000000040B000-memory.dmp

memory/976-0-0x0000000000400000-0x0000000000414000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-O9G3R.tmp\7c73d59c2d90b17079d969721fd86a9437ca440dfac37aea9b2617c3a96fcde5.tmp

MD5 96e2c8db3dd8e1f3632aab3b400e4b9a
SHA1 4272048cddf5a17cee879c2c421f61e33baeff69
SHA256 624f7af3f2c4baa83666b9d02935116368c7660d5ee7059704f1d7279cde4cf2
SHA512 1d1642d10d31bf54e78fa6b3bba5e31b4fe745f1834d61dcf5ffd1d99934c1d7ba3ecc4832d0c3519380f5ded71632bf084ad4cfb3f74785e54d434508a8e984

memory/1572-10-0x0000000000400000-0x00000000004BD000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-4S470.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe

MD5 5e0a8ffd2f356a2a76265f2cf335f67a
SHA1 3ecfb5f97f8eb6a4f0682a526318054e2348c9e3
SHA256 858e9b948f89b35e5686aef218bddaf698569739159ef8162640bbcadf56238e
SHA512 c2201cd29d3edaf5e1b292a89902ea9e833e1ec4ee3d2a2a53563de1300330b5f5925da6a02c34b3c5c451569e51b0d5626f972141fe6493c315b55cd151cf49

memory/3684-52-0x0000000000400000-0x000000000086E000-memory.dmp

memory/3684-53-0x0000000000400000-0x000000000086E000-memory.dmp

memory/3684-57-0x0000000000400000-0x000000000086E000-memory.dmp

memory/3684-56-0x0000000000400000-0x000000000086E000-memory.dmp

memory/4944-60-0x0000000000400000-0x000000000086E000-memory.dmp

memory/976-61-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1572-62-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/4944-63-0x0000000000400000-0x000000000086E000-memory.dmp

memory/4944-66-0x0000000000400000-0x000000000086E000-memory.dmp

memory/4944-69-0x0000000000400000-0x000000000086E000-memory.dmp

memory/4944-72-0x0000000000400000-0x000000000086E000-memory.dmp

memory/4944-75-0x0000000000400000-0x000000000086E000-memory.dmp

memory/4944-76-0x0000000000B70000-0x0000000000C12000-memory.dmp

memory/4944-80-0x0000000000400000-0x000000000086E000-memory.dmp

memory/4944-86-0x0000000000400000-0x000000000086E000-memory.dmp

memory/4944-89-0x0000000000400000-0x000000000086E000-memory.dmp

memory/4944-92-0x0000000000400000-0x000000000086E000-memory.dmp

memory/4944-95-0x0000000000400000-0x000000000086E000-memory.dmp

memory/4944-98-0x0000000000400000-0x000000000086E000-memory.dmp

memory/4944-101-0x0000000000400000-0x000000000086E000-memory.dmp

memory/4944-103-0x0000000000B70000-0x0000000000C12000-memory.dmp

memory/4944-102-0x0000000000B70000-0x0000000000C12000-memory.dmp

memory/4944-107-0x0000000000400000-0x000000000086E000-memory.dmp

memory/4944-110-0x0000000000400000-0x000000000086E000-memory.dmp