Malware Analysis Report

2024-11-15 04:58

Sample ID 240624-vkzyxawflk
Target 1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43
SHA256 1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43
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

1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43

Threat Level: Known bad

The file 1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43 was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Socks5Systemz

Detect Socks5Systemz Payload

Executes dropped EXE

Loads dropped DLL

Unexpected DNS network traffic destination

Checks installed software on the system

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-24 17:03

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-24 17:03

Reported

2024-06-24 17:06

Platform

win10v2004-20240508-en

Max time kernel

142s

Max time network

128s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.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

Enumerates physical storage devices

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-D12BP.tmp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2024 wrote to memory of 4020 N/A C:\Users\Admin\AppData\Local\Temp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.exe C:\Users\Admin\AppData\Local\Temp\is-D12BP.tmp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.tmp
PID 2024 wrote to memory of 4020 N/A C:\Users\Admin\AppData\Local\Temp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.exe C:\Users\Admin\AppData\Local\Temp\is-D12BP.tmp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.tmp
PID 2024 wrote to memory of 4020 N/A C:\Users\Admin\AppData\Local\Temp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.exe C:\Users\Admin\AppData\Local\Temp\is-D12BP.tmp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.tmp
PID 4020 wrote to memory of 3256 N/A C:\Users\Admin\AppData\Local\Temp\is-D12BP.tmp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4020 wrote to memory of 3256 N/A C:\Users\Admin\AppData\Local\Temp\is-D12BP.tmp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4020 wrote to memory of 3256 N/A C:\Users\Admin\AppData\Local\Temp\is-D12BP.tmp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4020 wrote to memory of 4196 N/A C:\Users\Admin\AppData\Local\Temp\is-D12BP.tmp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4020 wrote to memory of 4196 N/A C:\Users\Admin\AppData\Local\Temp\is-D12BP.tmp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4020 wrote to memory of 4196 N/A C:\Users\Admin\AppData\Local\Temp\is-D12BP.tmp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.exe

"C:\Users\Admin\AppData\Local\Temp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.exe"

C:\Users\Admin\AppData\Local\Temp\is-D12BP.tmp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.tmp

"C:\Users\Admin\AppData\Local\Temp\is-D12BP.tmp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.tmp" /SL5="$80090,4956183,54272,C:\Users\Admin\AppData\Local\Temp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.exe"

C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

"C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -i

C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

"C:\Users\Admin\AppData\Local\Winypux\winypux32.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 --no-appcompat-clear --field-trial-handle=4200,i,10373433614523925616,13586256558317053467,262144 --variations-seed-version --mojo-platform-channel-handle=4028 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 42.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 32.251.17.2.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 94.65.42.20.in-addr.arpa udp
HK 141.98.234.31:53 ddoggim.info udp
TR 94.156.8.80:80 ddoggim.info tcp
NL 89.105.201.183:2023 tcp
US 8.8.8.8:53 31.234.98.141.in-addr.arpa udp
US 8.8.8.8:53 80.8.156.94.in-addr.arpa udp
US 8.8.8.8:53 183.201.105.89.in-addr.arpa udp

Files

memory/2024-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2024-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-D12BP.tmp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.tmp

MD5 eaa8b83db483f98a3627895df4b475e9
SHA1 8cbdb9e28949fa30471d0c3595af4ff4bc93c8c5
SHA256 b33ab0799c57e799dab21427b4b066e8d10b23e7ea0da56c238d9629c6595077
SHA512 373088b3d8abefc5a0f70ebd46b2c803a55ef2cf906d057f124fa7508b1cc3c4ba56983ebe07a204aa8b284d9a75a61c702b4117fef76c1fd76bbc44bd995627

memory/4020-13-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-7U2IH.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

MD5 586b4eb586fda29e2715ad3847344426
SHA1 2c531d77b3e89f62f14d288e59b1bff28a887fb2
SHA256 b35d97d894d9f151b0d2ae8b79692753fee50336f1202731517931e7225d5ff1
SHA512 fdffe660158e3cae258b4fe60fbe1fcc08056cbbef3eb9d1971be14569e7f1363403d2b877599758156d689ea743a84b846585d645f91ea378a1f2f9b71f4a65

memory/3256-59-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/3256-60-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/3256-61-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/3256-65-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/4196-67-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/2024-69-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4020-70-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/4196-71-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/4196-74-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/4196-77-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/4196-80-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/4196-83-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/4196-86-0x00000000008C0000-0x0000000000962000-memory.dmp

memory/4196-88-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/4196-93-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/4196-96-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/4196-99-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/4196-102-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/4196-105-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/4196-108-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/4196-109-0x00000000008C0000-0x0000000000962000-memory.dmp

memory/4196-110-0x00000000008C0000-0x0000000000962000-memory.dmp

memory/4196-114-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/4196-117-0x0000000000400000-0x00000000006FA000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-24 17:03

Reported

2024-06-24 17:06

Platform

win11-20240611-en

Max time kernel

147s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.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

Enumerates physical storage devices

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-6S0I7.tmp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4380 wrote to memory of 4288 N/A C:\Users\Admin\AppData\Local\Temp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.exe C:\Users\Admin\AppData\Local\Temp\is-6S0I7.tmp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.tmp
PID 4380 wrote to memory of 4288 N/A C:\Users\Admin\AppData\Local\Temp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.exe C:\Users\Admin\AppData\Local\Temp\is-6S0I7.tmp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.tmp
PID 4380 wrote to memory of 4288 N/A C:\Users\Admin\AppData\Local\Temp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.exe C:\Users\Admin\AppData\Local\Temp\is-6S0I7.tmp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.tmp
PID 4288 wrote to memory of 2072 N/A C:\Users\Admin\AppData\Local\Temp\is-6S0I7.tmp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4288 wrote to memory of 2072 N/A C:\Users\Admin\AppData\Local\Temp\is-6S0I7.tmp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4288 wrote to memory of 2072 N/A C:\Users\Admin\AppData\Local\Temp\is-6S0I7.tmp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4288 wrote to memory of 1196 N/A C:\Users\Admin\AppData\Local\Temp\is-6S0I7.tmp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4288 wrote to memory of 1196 N/A C:\Users\Admin\AppData\Local\Temp\is-6S0I7.tmp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4288 wrote to memory of 1196 N/A C:\Users\Admin\AppData\Local\Temp\is-6S0I7.tmp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.exe

"C:\Users\Admin\AppData\Local\Temp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.exe"

C:\Users\Admin\AppData\Local\Temp\is-6S0I7.tmp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.tmp

"C:\Users\Admin\AppData\Local\Temp\is-6S0I7.tmp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.tmp" /SL5="$6023A,4956183,54272,C:\Users\Admin\AppData\Local\Temp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.exe"

C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

"C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -i

C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

"C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -s

Network

Country Destination Domain Proto
US 52.111.227.11:443 tcp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
HK 141.98.234.31:53 ersjaio.ua udp
TR 94.156.8.80:80 ersjaio.ua tcp
EE 194.76.227.81:2023 tcp

Files

memory/4380-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4380-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-6S0I7.tmp\1f2e8d0df5751478dc16fdcf6f5fa0d0f5ef4c14eb71f7b9f95b180cf5f86a43.tmp

MD5 eaa8b83db483f98a3627895df4b475e9
SHA1 8cbdb9e28949fa30471d0c3595af4ff4bc93c8c5
SHA256 b33ab0799c57e799dab21427b4b066e8d10b23e7ea0da56c238d9629c6595077
SHA512 373088b3d8abefc5a0f70ebd46b2c803a55ef2cf906d057f124fa7508b1cc3c4ba56983ebe07a204aa8b284d9a75a61c702b4117fef76c1fd76bbc44bd995627

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

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

memory/4288-13-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

MD5 586b4eb586fda29e2715ad3847344426
SHA1 2c531d77b3e89f62f14d288e59b1bff28a887fb2
SHA256 b35d97d894d9f151b0d2ae8b79692753fee50336f1202731517931e7225d5ff1
SHA512 fdffe660158e3cae258b4fe60fbe1fcc08056cbbef3eb9d1971be14569e7f1363403d2b877599758156d689ea743a84b846585d645f91ea378a1f2f9b71f4a65

memory/2072-59-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/2072-60-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/2072-63-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/2072-65-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/1196-67-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/1196-69-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/4380-70-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4288-71-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/1196-72-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/1196-75-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/1196-76-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/1196-79-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/1196-82-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/1196-85-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/1196-88-0x0000000000A00000-0x0000000000AA2000-memory.dmp

memory/1196-89-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/1196-95-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/1196-98-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/1196-101-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/1196-104-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/1196-107-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/1196-110-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/1196-111-0x0000000000A00000-0x0000000000AA2000-memory.dmp

memory/1196-112-0x0000000000A00000-0x0000000000AA2000-memory.dmp

memory/1196-116-0x0000000000400000-0x00000000006FA000-memory.dmp

memory/1196-119-0x0000000000400000-0x00000000006FA000-memory.dmp