Malware Analysis Report

2025-08-11 07:16

Sample ID 240803-sd9hnaxalk
Target a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54
SHA256 a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54
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

a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54

Threat Level: Known bad

The file a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54 was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Detect Socks5Systemz Payload

Socks5Systemz

Unexpected DNS network traffic destination

Executes dropped EXE

Loads dropped DLL

Checks installed software on the system

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-03 15:01

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-03 15:01

Reported

2024-08-03 15:04

Platform

win10v2004-20240802-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.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 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\Temp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\is-AMKMT.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-AMKMT.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4928 wrote to memory of 2036 N/A C:\Users\Admin\AppData\Local\Temp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.exe C:\Users\Admin\AppData\Local\Temp\is-AMKMT.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp
PID 4928 wrote to memory of 2036 N/A C:\Users\Admin\AppData\Local\Temp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.exe C:\Users\Admin\AppData\Local\Temp\is-AMKMT.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp
PID 4928 wrote to memory of 2036 N/A C:\Users\Admin\AppData\Local\Temp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.exe C:\Users\Admin\AppData\Local\Temp\is-AMKMT.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp
PID 2036 wrote to memory of 3312 N/A C:\Users\Admin\AppData\Local\Temp\is-AMKMT.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe
PID 2036 wrote to memory of 3312 N/A C:\Users\Admin\AppData\Local\Temp\is-AMKMT.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe
PID 2036 wrote to memory of 3312 N/A C:\Users\Admin\AppData\Local\Temp\is-AMKMT.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe
PID 2036 wrote to memory of 3884 N/A C:\Users\Admin\AppData\Local\Temp\is-AMKMT.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe
PID 2036 wrote to memory of 3884 N/A C:\Users\Admin\AppData\Local\Temp\is-AMKMT.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe
PID 2036 wrote to memory of 3884 N/A C:\Users\Admin\AppData\Local\Temp\is-AMKMT.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.exe

"C:\Users\Admin\AppData\Local\Temp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.exe"

C:\Users\Admin\AppData\Local\Temp\is-AMKMT.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp

"C:\Users\Admin\AppData\Local\Temp\is-AMKMT.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp" /SL5="$B02CA,3821356,54272,C:\Users\Admin\AppData\Local\Temp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.exe"

C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe

"C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe" -i

C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe

"C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe" -s

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
LT 91.211.247.248:53 cegunwo.net udp
CH 185.196.8.214:80 cegunwo.net tcp
US 8.8.8.8:53 248.247.211.91.in-addr.arpa udp
US 8.8.8.8:53 214.8.196.185.in-addr.arpa udp
NL 45.156.23.96:2023 tcp
US 8.8.8.8:53 96.23.156.45.in-addr.arpa udp

Files

memory/4928-2-0x0000000000401000-0x000000000040B000-memory.dmp

memory/4928-0-0x0000000000400000-0x0000000000414000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-AMKMT.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp

MD5 78800d81ba6ad634d25059847cfb1baa
SHA1 022982bc0d006b40299bd553653970acb4718682
SHA256 24a25380d33d0cf52686906e1272d13c3d467307ec7194e1186cab6f3aa3af69
SHA512 83ffff319f2d910d001af4900098e8857dc9c4bd592e60b27ffdb0b49f9c8e1922ef61bfcdbebe9c1a37a7339a00ac98f05cba3d41f580513cb6971bcffd23a8

memory/2036-13-0x0000000000400000-0x00000000004BD000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-4S15G.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe

MD5 d2a3590cd1a8a5b3e3ddd8839a7a4ca9
SHA1 3b09fd644f8628f2f23ef0622374ef72a545d78c
SHA256 7a009ecaa6467056a6d6e1ee1ae689bf43bb75e9128e94c475f4c409b078b285
SHA512 87f525346aab68de223f44809c8bc117f97961f22f1629982deb836737c80a12290c9b7c8e1a8bbe906ba8fe4461965435ac25670d069c45793affad59eae84b

memory/3312-52-0x0000000000400000-0x0000000000876000-memory.dmp

memory/3312-55-0x0000000000400000-0x0000000000876000-memory.dmp

memory/3312-56-0x0000000000400000-0x0000000000876000-memory.dmp

memory/3312-53-0x0000000000400000-0x0000000000876000-memory.dmp

memory/3884-58-0x0000000000400000-0x0000000000876000-memory.dmp

memory/4928-60-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2036-61-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/3884-62-0x0000000000400000-0x0000000000876000-memory.dmp

memory/3884-65-0x0000000000400000-0x0000000000876000-memory.dmp

memory/3884-68-0x0000000000400000-0x0000000000876000-memory.dmp

memory/3884-71-0x0000000000400000-0x0000000000876000-memory.dmp

memory/3884-74-0x0000000000400000-0x0000000000876000-memory.dmp

memory/3884-77-0x0000000000B90000-0x0000000000C32000-memory.dmp

memory/3884-79-0x0000000000400000-0x0000000000876000-memory.dmp

memory/3884-84-0x0000000000400000-0x0000000000876000-memory.dmp

memory/3884-87-0x0000000000400000-0x0000000000876000-memory.dmp

memory/3884-90-0x0000000000400000-0x0000000000876000-memory.dmp

memory/3884-93-0x0000000000400000-0x0000000000876000-memory.dmp

memory/3884-96-0x0000000000400000-0x0000000000876000-memory.dmp

memory/3884-99-0x0000000000400000-0x0000000000876000-memory.dmp

memory/3884-100-0x0000000000B90000-0x0000000000C32000-memory.dmp

memory/3884-101-0x0000000000B90000-0x0000000000C32000-memory.dmp

memory/3884-105-0x0000000000400000-0x0000000000876000-memory.dmp

memory/3884-108-0x0000000000400000-0x0000000000876000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-03 15:01

Reported

2024-08-03 15:04

Platform

win11-20240802-en

Max time kernel

142s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.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

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.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\is-TKTBL.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-TKTBL.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 5024 wrote to memory of 248 N/A C:\Users\Admin\AppData\Local\Temp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.exe C:\Users\Admin\AppData\Local\Temp\is-TKTBL.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp
PID 5024 wrote to memory of 248 N/A C:\Users\Admin\AppData\Local\Temp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.exe C:\Users\Admin\AppData\Local\Temp\is-TKTBL.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp
PID 5024 wrote to memory of 248 N/A C:\Users\Admin\AppData\Local\Temp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.exe C:\Users\Admin\AppData\Local\Temp\is-TKTBL.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp
PID 248 wrote to memory of 776 N/A C:\Users\Admin\AppData\Local\Temp\is-TKTBL.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe
PID 248 wrote to memory of 776 N/A C:\Users\Admin\AppData\Local\Temp\is-TKTBL.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe
PID 248 wrote to memory of 776 N/A C:\Users\Admin\AppData\Local\Temp\is-TKTBL.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe
PID 248 wrote to memory of 4944 N/A C:\Users\Admin\AppData\Local\Temp\is-TKTBL.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe
PID 248 wrote to memory of 4944 N/A C:\Users\Admin\AppData\Local\Temp\is-TKTBL.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe
PID 248 wrote to memory of 4944 N/A C:\Users\Admin\AppData\Local\Temp\is-TKTBL.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.exe

"C:\Users\Admin\AppData\Local\Temp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.exe"

C:\Users\Admin\AppData\Local\Temp\is-TKTBL.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp

"C:\Users\Admin\AppData\Local\Temp\is-TKTBL.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp" /SL5="$501A4,3821356,54272,C:\Users\Admin\AppData\Local\Temp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.exe"

C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe

"C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe" -i

C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe

"C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe" -s

Network

Country Destination Domain Proto
RU 152.89.198.214:53 bbzcjdg.com udp
US 8.8.8.8:53 214.198.89.152.in-addr.arpa udp
CH 185.196.8.214:80 bbzcjdg.com tcp

Files

memory/5024-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/5024-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-TKTBL.tmp\a3f384031028eb44d87dfcee700bbcfe2f50f89d0d08a5f7cf866cac719e9e54.tmp

MD5 78800d81ba6ad634d25059847cfb1baa
SHA1 022982bc0d006b40299bd553653970acb4718682
SHA256 24a25380d33d0cf52686906e1272d13c3d467307ec7194e1186cab6f3aa3af69
SHA512 83ffff319f2d910d001af4900098e8857dc9c4bd592e60b27ffdb0b49f9c8e1922ef61bfcdbebe9c1a37a7339a00ac98f05cba3d41f580513cb6971bcffd23a8

C:\Users\Admin\AppData\Local\Temp\is-OM5QF.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

memory/248-16-0x0000000000400000-0x00000000004BD000-memory.dmp

C:\Users\Admin\AppData\Local\Jeengle\jeengle32.exe

MD5 d2a3590cd1a8a5b3e3ddd8839a7a4ca9
SHA1 3b09fd644f8628f2f23ef0622374ef72a545d78c
SHA256 7a009ecaa6467056a6d6e1ee1ae689bf43bb75e9128e94c475f4c409b078b285
SHA512 87f525346aab68de223f44809c8bc117f97961f22f1629982deb836737c80a12290c9b7c8e1a8bbe906ba8fe4461965435ac25670d069c45793affad59eae84b

memory/776-52-0x0000000000400000-0x0000000000876000-memory.dmp

memory/776-53-0x0000000000400000-0x0000000000876000-memory.dmp

memory/776-55-0x0000000000400000-0x0000000000876000-memory.dmp

memory/776-56-0x0000000000400000-0x0000000000876000-memory.dmp

memory/4944-59-0x0000000000400000-0x0000000000876000-memory.dmp

memory/5024-60-0x0000000000400000-0x0000000000414000-memory.dmp

memory/248-61-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/4944-62-0x0000000000400000-0x0000000000876000-memory.dmp

memory/4944-65-0x0000000000400000-0x0000000000876000-memory.dmp

memory/4944-66-0x0000000000400000-0x0000000000876000-memory.dmp

memory/4944-69-0x0000000000400000-0x0000000000876000-memory.dmp

memory/4944-72-0x0000000000400000-0x0000000000876000-memory.dmp

memory/4944-75-0x0000000000400000-0x0000000000876000-memory.dmp

memory/4944-78-0x0000000000BB0000-0x0000000000C52000-memory.dmp

memory/4944-81-0x0000000000400000-0x0000000000876000-memory.dmp

memory/4944-86-0x0000000000400000-0x0000000000876000-memory.dmp

memory/4944-89-0x0000000000400000-0x0000000000876000-memory.dmp

memory/4944-92-0x0000000000400000-0x0000000000876000-memory.dmp

memory/4944-95-0x0000000000400000-0x0000000000876000-memory.dmp

memory/4944-98-0x0000000000400000-0x0000000000876000-memory.dmp

memory/4944-101-0x0000000000400000-0x0000000000876000-memory.dmp

memory/4944-105-0x0000000000400000-0x0000000000876000-memory.dmp

memory/4944-108-0x0000000000400000-0x0000000000876000-memory.dmp