Malware Analysis Report

2025-08-10 14:03

Sample ID 240803-zyb68azdmd
Target dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6
SHA256 dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6
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

dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6

Threat Level: Known bad

The file dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6 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

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 21:07

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-03 21:07

Reported

2024-08-03 21:09

Platform

win10v2004-20240802-en

Max time kernel

142s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.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

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\Jeengle\jeengle32_64.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\is-BV9J7.tmp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.tmp 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-BV9J7.tmp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2556 wrote to memory of 1040 N/A C:\Users\Admin\AppData\Local\Temp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.exe C:\Users\Admin\AppData\Local\Temp\is-BV9J7.tmp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.tmp
PID 2556 wrote to memory of 1040 N/A C:\Users\Admin\AppData\Local\Temp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.exe C:\Users\Admin\AppData\Local\Temp\is-BV9J7.tmp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.tmp
PID 2556 wrote to memory of 1040 N/A C:\Users\Admin\AppData\Local\Temp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.exe C:\Users\Admin\AppData\Local\Temp\is-BV9J7.tmp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.tmp
PID 1040 wrote to memory of 4892 N/A C:\Users\Admin\AppData\Local\Temp\is-BV9J7.tmp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 1040 wrote to memory of 4892 N/A C:\Users\Admin\AppData\Local\Temp\is-BV9J7.tmp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 1040 wrote to memory of 4892 N/A C:\Users\Admin\AppData\Local\Temp\is-BV9J7.tmp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 1040 wrote to memory of 4632 N/A C:\Users\Admin\AppData\Local\Temp\is-BV9J7.tmp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 1040 wrote to memory of 4632 N/A C:\Users\Admin\AppData\Local\Temp\is-BV9J7.tmp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 1040 wrote to memory of 4632 N/A C:\Users\Admin\AppData\Local\Temp\is-BV9J7.tmp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe

Processes

C:\Users\Admin\AppData\Local\Temp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.exe

"C:\Users\Admin\AppData\Local\Temp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.exe"

C:\Users\Admin\AppData\Local\Temp\is-BV9J7.tmp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.tmp

"C:\Users\Admin\AppData\Local\Temp\is-BV9J7.tmp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.tmp" /SL5="$60144,3761789,54272,C:\Users\Admin\AppData\Local\Temp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 101.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
LT 91.211.247.248:53 aydcjly.ru udp
CH 185.196.8.214:80 aydcjly.ru tcp
US 8.8.8.8:53 214.8.196.185.in-addr.arpa udp
US 8.8.8.8:53 248.247.211.91.in-addr.arpa udp

Files

memory/2556-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2556-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-BV9J7.tmp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.tmp

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

memory/1040-12-0x0000000000400000-0x00000000004BD000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-7SE28.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 6a521bd35db1e9414504aaf93ab13134
SHA1 6316d63f1af1775761cbdee733e62e61bb301acd
SHA256 10fd4bf05995e821a57f56abe084b6485258345ffdb09a086b268efdd2e62594
SHA512 e2ea079c99bf22bf9f53e92eaa9f106e616d11b5e50dd58bf71748cc5f38ece152351a12b54c6fb8be5137e31075f82e05768b2081a7d788be6328b418015612

memory/4892-53-0x0000000000400000-0x0000000000868000-memory.dmp

memory/4892-52-0x0000000000400000-0x0000000000868000-memory.dmp

memory/4892-55-0x0000000000400000-0x0000000000868000-memory.dmp

memory/4632-59-0x0000000000400000-0x0000000000868000-memory.dmp

memory/2556-60-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1040-61-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/4632-62-0x0000000000400000-0x0000000000868000-memory.dmp

memory/4632-65-0x0000000000400000-0x0000000000868000-memory.dmp

memory/4632-68-0x0000000000400000-0x0000000000868000-memory.dmp

memory/4632-71-0x0000000000400000-0x0000000000868000-memory.dmp

memory/4632-74-0x0000000000400000-0x0000000000868000-memory.dmp

memory/4632-76-0x00000000026F0000-0x0000000002792000-memory.dmp

memory/4632-79-0x0000000000400000-0x0000000000868000-memory.dmp

memory/4632-84-0x0000000000400000-0x0000000000868000-memory.dmp

memory/4632-87-0x0000000000400000-0x0000000000868000-memory.dmp

memory/4632-90-0x0000000000400000-0x0000000000868000-memory.dmp

memory/4632-93-0x0000000000400000-0x0000000000868000-memory.dmp

memory/4632-96-0x0000000000400000-0x0000000000868000-memory.dmp

memory/4632-100-0x0000000000400000-0x0000000000868000-memory.dmp

memory/4632-103-0x0000000000400000-0x0000000000868000-memory.dmp

memory/4632-106-0x0000000000400000-0x0000000000868000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-03 21:07

Reported

2024-08-03 21:09

Platform

win11-20240802-en

Max time kernel

142s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.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

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\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\is-5UG1N.tmp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.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-5UG1N.tmp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2156 wrote to memory of 2268 N/A C:\Users\Admin\AppData\Local\Temp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.exe C:\Users\Admin\AppData\Local\Temp\is-5UG1N.tmp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.tmp
PID 2156 wrote to memory of 2268 N/A C:\Users\Admin\AppData\Local\Temp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.exe C:\Users\Admin\AppData\Local\Temp\is-5UG1N.tmp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.tmp
PID 2156 wrote to memory of 2268 N/A C:\Users\Admin\AppData\Local\Temp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.exe C:\Users\Admin\AppData\Local\Temp\is-5UG1N.tmp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.tmp
PID 2268 wrote to memory of 4484 N/A C:\Users\Admin\AppData\Local\Temp\is-5UG1N.tmp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 2268 wrote to memory of 4484 N/A C:\Users\Admin\AppData\Local\Temp\is-5UG1N.tmp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 2268 wrote to memory of 4484 N/A C:\Users\Admin\AppData\Local\Temp\is-5UG1N.tmp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 2268 wrote to memory of 2220 N/A C:\Users\Admin\AppData\Local\Temp\is-5UG1N.tmp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 2268 wrote to memory of 2220 N/A C:\Users\Admin\AppData\Local\Temp\is-5UG1N.tmp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 2268 wrote to memory of 2220 N/A C:\Users\Admin\AppData\Local\Temp\is-5UG1N.tmp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe

Processes

C:\Users\Admin\AppData\Local\Temp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.exe

"C:\Users\Admin\AppData\Local\Temp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.exe"

C:\Users\Admin\AppData\Local\Temp\is-5UG1N.tmp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.tmp

"C:\Users\Admin\AppData\Local\Temp\is-5UG1N.tmp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.tmp" /SL5="$60208,3761789,54272,C:\Users\Admin\AppData\Local\Temp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.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
SE 45.155.250.90:53 bxbesyo.com udp
CH 185.196.8.214:80 bxbesyo.com tcp
US 8.8.8.8:53 214.8.196.185.in-addr.arpa udp

Files

memory/2156-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2156-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-5UG1N.tmp\dca3f56cf0b4f47a18c393912e1c6b8f3385d9363d2665313c469bf04507ccd6.tmp

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

memory/2268-13-0x0000000000400000-0x00000000004BD000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-3F494.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 6a521bd35db1e9414504aaf93ab13134
SHA1 6316d63f1af1775761cbdee733e62e61bb301acd
SHA256 10fd4bf05995e821a57f56abe084b6485258345ffdb09a086b268efdd2e62594
SHA512 e2ea079c99bf22bf9f53e92eaa9f106e616d11b5e50dd58bf71748cc5f38ece152351a12b54c6fb8be5137e31075f82e05768b2081a7d788be6328b418015612

memory/4484-53-0x0000000000400000-0x0000000000868000-memory.dmp

memory/4484-52-0x0000000000400000-0x0000000000868000-memory.dmp

memory/4484-55-0x0000000000400000-0x0000000000868000-memory.dmp

memory/4484-57-0x0000000000400000-0x0000000000868000-memory.dmp

memory/2220-61-0x0000000000400000-0x0000000000868000-memory.dmp

memory/2220-60-0x0000000000400000-0x0000000000868000-memory.dmp

memory/2156-62-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2268-63-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/2220-64-0x0000000000400000-0x0000000000868000-memory.dmp

memory/2220-67-0x0000000000400000-0x0000000000868000-memory.dmp

memory/2220-68-0x0000000000400000-0x0000000000868000-memory.dmp

memory/2220-71-0x0000000000400000-0x0000000000868000-memory.dmp

memory/2220-74-0x0000000000400000-0x0000000000868000-memory.dmp

memory/2220-77-0x0000000000400000-0x0000000000868000-memory.dmp

memory/2220-80-0x0000000000B60000-0x0000000000C02000-memory.dmp

memory/2220-81-0x0000000000400000-0x0000000000868000-memory.dmp

memory/2220-87-0x0000000000400000-0x0000000000868000-memory.dmp

memory/2220-90-0x0000000000400000-0x0000000000868000-memory.dmp

memory/2220-93-0x0000000000400000-0x0000000000868000-memory.dmp

memory/2220-96-0x0000000000400000-0x0000000000868000-memory.dmp

memory/2220-99-0x0000000000400000-0x0000000000868000-memory.dmp

memory/2220-102-0x0000000000400000-0x0000000000868000-memory.dmp

memory/2220-106-0x0000000000400000-0x0000000000868000-memory.dmp

memory/2220-109-0x0000000000400000-0x0000000000868000-memory.dmp