Malware Analysis Report

2025-08-10 14:04

Sample ID 240803-tkxywasgqa
Target 4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439
SHA256 4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439
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

4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439

Threat Level: Known bad

The file 4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439 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 use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-03 16:07

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-03 16:07

Reported

2024-08-03 16:10

Platform

win10v2004-20240802-en

Max time kernel

144s

Max time network

129s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.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\is-I32KF.tmp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.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
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-I32KF.tmp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1092 wrote to memory of 4284 N/A C:\Users\Admin\AppData\Local\Temp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.exe C:\Users\Admin\AppData\Local\Temp\is-I32KF.tmp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.tmp
PID 1092 wrote to memory of 4284 N/A C:\Users\Admin\AppData\Local\Temp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.exe C:\Users\Admin\AppData\Local\Temp\is-I32KF.tmp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.tmp
PID 1092 wrote to memory of 4284 N/A C:\Users\Admin\AppData\Local\Temp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.exe C:\Users\Admin\AppData\Local\Temp\is-I32KF.tmp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.tmp
PID 4284 wrote to memory of 3272 N/A C:\Users\Admin\AppData\Local\Temp\is-I32KF.tmp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 4284 wrote to memory of 3272 N/A C:\Users\Admin\AppData\Local\Temp\is-I32KF.tmp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 4284 wrote to memory of 3272 N/A C:\Users\Admin\AppData\Local\Temp\is-I32KF.tmp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 4284 wrote to memory of 932 N/A C:\Users\Admin\AppData\Local\Temp\is-I32KF.tmp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 4284 wrote to memory of 932 N/A C:\Users\Admin\AppData\Local\Temp\is-I32KF.tmp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 4284 wrote to memory of 932 N/A C:\Users\Admin\AppData\Local\Temp\is-I32KF.tmp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe

Processes

C:\Users\Admin\AppData\Local\Temp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.exe

"C:\Users\Admin\AppData\Local\Temp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.exe"

C:\Users\Admin\AppData\Local\Temp\is-I32KF.tmp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.tmp

"C:\Users\Admin\AppData\Local\Temp\is-I32KF.tmp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.tmp" /SL5="$E0052,3964087,54272,C:\Users\Admin\AppData\Local\Temp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.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

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3976,i,9445584274764997943,12714240264001792460,262144 --variations-seed-version --mojo-platform-channel-handle=4112 /prefetch:8

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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
SE 45.155.250.90:53 erkfuou.ua udp
CH 185.196.8.214:80 erkfuou.ua tcp
US 8.8.8.8:53 90.250.155.45.in-addr.arpa udp
US 8.8.8.8:53 214.8.196.185.in-addr.arpa udp

Files

memory/1092-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1092-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-I32KF.tmp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.tmp

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

C:\Users\Admin\AppData\Local\Temp\is-T6F79.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

memory/4284-13-0x0000000000400000-0x00000000004BD000-memory.dmp

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

MD5 0518ea5df47eeed2c9a2b944c34dcfc5
SHA1 418532e1369ebeb54bb3b7cb56157e1cc453108d
SHA256 223e9760201003b014e44214b8a058b4ccf8a7df530ced5e9d9fa775d47e6388
SHA512 0b6c9a2e06562de7617bd378277f0ce927cd74bbca4861ea10fbfedd83be790c6cba4ff79a5202393f47652f3a958d18844e54f7126c498dd9f482daa20bd20d

memory/3272-52-0x0000000000400000-0x000000000089D000-memory.dmp

memory/3272-53-0x0000000000400000-0x000000000089D000-memory.dmp

memory/3272-54-0x0000000000400000-0x000000000089D000-memory.dmp

memory/3272-57-0x0000000000400000-0x000000000089D000-memory.dmp

memory/932-60-0x0000000000400000-0x000000000089D000-memory.dmp

memory/1092-61-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4284-62-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/932-63-0x0000000000400000-0x000000000089D000-memory.dmp

memory/932-66-0x0000000000400000-0x000000000089D000-memory.dmp

memory/932-69-0x0000000000400000-0x000000000089D000-memory.dmp

memory/932-72-0x0000000000400000-0x000000000089D000-memory.dmp

memory/932-75-0x0000000000400000-0x000000000089D000-memory.dmp

memory/932-78-0x0000000000B20000-0x0000000000BC2000-memory.dmp

memory/932-82-0x0000000000400000-0x000000000089D000-memory.dmp

memory/932-85-0x0000000000400000-0x000000000089D000-memory.dmp

memory/932-88-0x0000000000400000-0x000000000089D000-memory.dmp

memory/932-91-0x0000000000400000-0x000000000089D000-memory.dmp

memory/932-94-0x0000000000400000-0x000000000089D000-memory.dmp

memory/932-97-0x0000000000400000-0x000000000089D000-memory.dmp

memory/932-100-0x0000000000400000-0x000000000089D000-memory.dmp

memory/932-104-0x0000000000400000-0x000000000089D000-memory.dmp

memory/932-107-0x0000000000400000-0x000000000089D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-03 16:07

Reported

2024-08-03 16:10

Platform

win11-20240802-en

Max time kernel

141s

Max time network

128s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.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\Jeengle\jeengle32_64.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\is-GUBBP.tmp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.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-GUBBP.tmp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4476 wrote to memory of 1232 N/A C:\Users\Admin\AppData\Local\Temp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.exe C:\Users\Admin\AppData\Local\Temp\is-GUBBP.tmp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.tmp
PID 4476 wrote to memory of 1232 N/A C:\Users\Admin\AppData\Local\Temp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.exe C:\Users\Admin\AppData\Local\Temp\is-GUBBP.tmp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.tmp
PID 4476 wrote to memory of 1232 N/A C:\Users\Admin\AppData\Local\Temp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.exe C:\Users\Admin\AppData\Local\Temp\is-GUBBP.tmp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.tmp
PID 1232 wrote to memory of 3760 N/A C:\Users\Admin\AppData\Local\Temp\is-GUBBP.tmp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 1232 wrote to memory of 3760 N/A C:\Users\Admin\AppData\Local\Temp\is-GUBBP.tmp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 1232 wrote to memory of 3760 N/A C:\Users\Admin\AppData\Local\Temp\is-GUBBP.tmp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 1232 wrote to memory of 864 N/A C:\Users\Admin\AppData\Local\Temp\is-GUBBP.tmp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 1232 wrote to memory of 864 N/A C:\Users\Admin\AppData\Local\Temp\is-GUBBP.tmp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe
PID 1232 wrote to memory of 864 N/A C:\Users\Admin\AppData\Local\Temp\is-GUBBP.tmp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.tmp C:\Users\Admin\AppData\Local\Jeengle\jeengle32_64.exe

Processes

C:\Users\Admin\AppData\Local\Temp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.exe

"C:\Users\Admin\AppData\Local\Temp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.exe"

C:\Users\Admin\AppData\Local\Temp\is-GUBBP.tmp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.tmp

"C:\Users\Admin\AppData\Local\Temp\is-GUBBP.tmp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.tmp" /SL5="$3017C,3964087,54272,C:\Users\Admin\AppData\Local\Temp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.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
LT 91.211.247.248:53 bpbzhud.com udp
CH 185.196.8.214:80 bpbzhud.com tcp
US 8.8.8.8:53 248.247.211.91.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/4476-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4476-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-GUBBP.tmp\4986a7184a96e625ed0546cbd8270de48cb282fd70101dcea444da78e970d439.tmp

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

memory/1232-10-0x0000000000400000-0x00000000004BD000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-DJ3IV.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 0518ea5df47eeed2c9a2b944c34dcfc5
SHA1 418532e1369ebeb54bb3b7cb56157e1cc453108d
SHA256 223e9760201003b014e44214b8a058b4ccf8a7df530ced5e9d9fa775d47e6388
SHA512 0b6c9a2e06562de7617bd378277f0ce927cd74bbca4861ea10fbfedd83be790c6cba4ff79a5202393f47652f3a958d18844e54f7126c498dd9f482daa20bd20d

memory/3760-53-0x0000000000400000-0x000000000089D000-memory.dmp

memory/3760-52-0x0000000000400000-0x000000000089D000-memory.dmp

memory/3760-55-0x0000000000400000-0x000000000089D000-memory.dmp

memory/864-59-0x0000000000400000-0x000000000089D000-memory.dmp

memory/4476-60-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1232-61-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/864-62-0x0000000000400000-0x000000000089D000-memory.dmp

memory/864-65-0x0000000000400000-0x000000000089D000-memory.dmp

memory/864-68-0x0000000000400000-0x000000000089D000-memory.dmp

memory/864-71-0x0000000000400000-0x000000000089D000-memory.dmp

memory/864-74-0x0000000000400000-0x000000000089D000-memory.dmp

memory/864-75-0x0000000000D30000-0x0000000000DD2000-memory.dmp

memory/864-80-0x0000000000400000-0x000000000089D000-memory.dmp

memory/864-85-0x0000000000400000-0x000000000089D000-memory.dmp

memory/864-88-0x0000000000400000-0x000000000089D000-memory.dmp

memory/864-91-0x0000000000400000-0x000000000089D000-memory.dmp

memory/864-94-0x0000000000400000-0x000000000089D000-memory.dmp

memory/864-97-0x0000000000400000-0x000000000089D000-memory.dmp

memory/864-100-0x0000000000400000-0x000000000089D000-memory.dmp

memory/864-101-0x0000000000D30000-0x0000000000DD2000-memory.dmp

memory/864-102-0x0000000000D30000-0x0000000000DD2000-memory.dmp

memory/864-106-0x0000000000400000-0x000000000089D000-memory.dmp

memory/864-109-0x0000000000400000-0x000000000089D000-memory.dmp