Malware Analysis Report

2024-11-15 04:58

Sample ID 240624-3d4yaaxfqa
Target 717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e
SHA256 717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e
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

717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e

Threat Level: Known bad

The file 717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Detect Socks5Systemz Payload

Socks5Systemz

Loads dropped DLL

Unexpected DNS network traffic destination

Executes dropped EXE

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 23:24

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-24 23:24

Reported

2024-06-24 23:27

Platform

win10v2004-20240508-en

Max time kernel

142s

Max time network

128s

Command Line

"C:\Users\Admin\AppData\Local\Temp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.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

Enumerates physical storage devices

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-NC6MS.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4584 wrote to memory of 224 N/A C:\Users\Admin\AppData\Local\Temp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.exe C:\Users\Admin\AppData\Local\Temp\is-NC6MS.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp
PID 4584 wrote to memory of 224 N/A C:\Users\Admin\AppData\Local\Temp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.exe C:\Users\Admin\AppData\Local\Temp\is-NC6MS.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp
PID 4584 wrote to memory of 224 N/A C:\Users\Admin\AppData\Local\Temp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.exe C:\Users\Admin\AppData\Local\Temp\is-NC6MS.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp
PID 224 wrote to memory of 1168 N/A C:\Users\Admin\AppData\Local\Temp\is-NC6MS.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 224 wrote to memory of 1168 N/A C:\Users\Admin\AppData\Local\Temp\is-NC6MS.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 224 wrote to memory of 1168 N/A C:\Users\Admin\AppData\Local\Temp\is-NC6MS.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 224 wrote to memory of 3888 N/A C:\Users\Admin\AppData\Local\Temp\is-NC6MS.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 224 wrote to memory of 3888 N/A C:\Users\Admin\AppData\Local\Temp\is-NC6MS.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 224 wrote to memory of 3888 N/A C:\Users\Admin\AppData\Local\Temp\is-NC6MS.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.exe

"C:\Users\Admin\AppData\Local\Temp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.exe"

C:\Users\Admin\AppData\Local\Temp\is-NC6MS.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp

"C:\Users\Admin\AppData\Local\Temp\is-NC6MS.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp" /SL5="$80118,4753091,54272,C:\Users\Admin\AppData\Local\Temp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.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=4252,i,16710585221322798697,8586257254049248207,262144 --variations-seed-version --mojo-platform-channel-handle=4400 /prefetch:8

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 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.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
LT 91.211.247.248:53 bdwiydz.com udp
TR 94.156.8.80:80 bdwiydz.com tcp
NL 89.105.201.183:2023 tcp
US 8.8.8.8:53 80.8.156.94.in-addr.arpa udp
US 8.8.8.8:53 248.247.211.91.in-addr.arpa udp
US 8.8.8.8:53 183.201.105.89.in-addr.arpa udp

Files

memory/4584-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4584-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-NC6MS.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp

MD5 1b33096a94e46692ad4d81f4d479a4e6
SHA1 c1258a69a0e5888e3292f4c9956a930a2d858e88
SHA256 3cee8718764f6cd90530e38825c9496c2b34e74421c3d07afce6a55f746c2a47
SHA512 3623b7ae8ad23074614b5f7264ae8a952c9b5de8882559075bf76a87d8fa3632d66c6897fa738e82c6bbedee1e4ee8f169dfc61decafef9978c32d77dd9214f6

C:\Users\Admin\AppData\Local\Temp\is-3771S.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

memory/224-16-0x0000000000400000-0x00000000004BA000-memory.dmp

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

MD5 034a19364a29f0ec88b84ea44eee384d
SHA1 9ea97df0dc8d7aa392f5c792adb79285677534cc
SHA256 73158339e43631670b50e61ada31c6ade8ab2f98ff569430b25acb22e5e9696b
SHA512 ef6114679bde6c6d8ea6b317980fe8070481546d79ee6b1550284fb990993085719c6081e09d1ddc127869483f127f42e2531ded0e7ec52c5645d3d94865a584

memory/1168-59-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/1168-60-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/1168-63-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/1168-65-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3888-68-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/4584-69-0x0000000000400000-0x0000000000414000-memory.dmp

memory/224-70-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/3888-71-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3888-74-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3888-77-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3888-80-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3888-83-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3888-86-0x0000000002360000-0x0000000002402000-memory.dmp

memory/3888-88-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3888-93-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3888-96-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3888-99-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3888-102-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3888-105-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3888-108-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3888-110-0x0000000002360000-0x0000000002402000-memory.dmp

memory/3888-109-0x0000000002360000-0x0000000002402000-memory.dmp

memory/3888-114-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3888-117-0x0000000000400000-0x00000000006C7000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-24 23:24

Reported

2024-06-24 23:27

Platform

win11-20240611-en

Max time kernel

141s

Max time network

129s

Command Line

"C:\Users\Admin\AppData\Local\Temp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.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-VGNH3.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2684 wrote to memory of 4320 N/A C:\Users\Admin\AppData\Local\Temp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.exe C:\Users\Admin\AppData\Local\Temp\is-VGNH3.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp
PID 2684 wrote to memory of 4320 N/A C:\Users\Admin\AppData\Local\Temp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.exe C:\Users\Admin\AppData\Local\Temp\is-VGNH3.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp
PID 2684 wrote to memory of 4320 N/A C:\Users\Admin\AppData\Local\Temp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.exe C:\Users\Admin\AppData\Local\Temp\is-VGNH3.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp
PID 4320 wrote to memory of 3144 N/A C:\Users\Admin\AppData\Local\Temp\is-VGNH3.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4320 wrote to memory of 3144 N/A C:\Users\Admin\AppData\Local\Temp\is-VGNH3.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4320 wrote to memory of 3144 N/A C:\Users\Admin\AppData\Local\Temp\is-VGNH3.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4320 wrote to memory of 3148 N/A C:\Users\Admin\AppData\Local\Temp\is-VGNH3.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4320 wrote to memory of 3148 N/A C:\Users\Admin\AppData\Local\Temp\is-VGNH3.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4320 wrote to memory of 3148 N/A C:\Users\Admin\AppData\Local\Temp\is-VGNH3.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.exe

"C:\Users\Admin\AppData\Local\Temp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.exe"

C:\Users\Admin\AppData\Local\Temp\is-VGNH3.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp

"C:\Users\Admin\AppData\Local\Temp\is-VGNH3.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp" /SL5="$90066,4753091,54272,C:\Users\Admin\AppData\Local\Temp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.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
IE 52.111.236.23:443 tcp
HK 141.98.234.31:53 buzoylh.com udp
TR 94.156.8.80:80 buzoylh.com tcp
EE 194.76.227.81:2023 tcp
US 8.8.8.8:53 81.227.76.194.in-addr.arpa udp

Files

memory/2684-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2684-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-VGNH3.tmp\717094f9d9b62b89ac60f7a696856b1114c54e7d519ef80e5e32d4284c64093e.tmp

MD5 1b33096a94e46692ad4d81f4d479a4e6
SHA1 c1258a69a0e5888e3292f4c9956a930a2d858e88
SHA256 3cee8718764f6cd90530e38825c9496c2b34e74421c3d07afce6a55f746c2a47
SHA512 3623b7ae8ad23074614b5f7264ae8a952c9b5de8882559075bf76a87d8fa3632d66c6897fa738e82c6bbedee1e4ee8f169dfc61decafef9978c32d77dd9214f6

C:\Users\Admin\AppData\Local\Temp\is-T5K0H.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

memory/4320-16-0x0000000000400000-0x00000000004BA000-memory.dmp

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

MD5 034a19364a29f0ec88b84ea44eee384d
SHA1 9ea97df0dc8d7aa392f5c792adb79285677534cc
SHA256 73158339e43631670b50e61ada31c6ade8ab2f98ff569430b25acb22e5e9696b
SHA512 ef6114679bde6c6d8ea6b317980fe8070481546d79ee6b1550284fb990993085719c6081e09d1ddc127869483f127f42e2531ded0e7ec52c5645d3d94865a584

memory/3144-59-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3144-60-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3144-63-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3144-65-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3148-68-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/2684-69-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4320-70-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/3148-71-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3148-74-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3148-77-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3148-80-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3148-83-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3148-86-0x0000000000A60000-0x0000000000B02000-memory.dmp

memory/3148-89-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3148-94-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3148-97-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3148-100-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3148-103-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3148-106-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3148-109-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3148-110-0x0000000000A60000-0x0000000000B02000-memory.dmp

memory/3148-111-0x0000000000A60000-0x0000000000B02000-memory.dmp

memory/3148-115-0x0000000000400000-0x00000000006C7000-memory.dmp

memory/3148-118-0x0000000000400000-0x00000000006C7000-memory.dmp