Malware Analysis Report

2024-11-15 04:58

Sample ID 240624-1j69gstand
Target 6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc
SHA256 6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc
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

6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc

Threat Level: Known bad

The file 6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc 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

Enumerates physical storage devices

Unsigned PE

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-24 21:41

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-24 21:41

Reported

2024-06-24 21:44

Platform

win10v2004-20240508-en

Max time kernel

147s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.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 141.98.234.31 N/A N/A
Destination IP 152.89.198.214 N/A N/A
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-8GU3D.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2920 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.exe C:\Users\Admin\AppData\Local\Temp\is-8GU3D.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp
PID 2920 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.exe C:\Users\Admin\AppData\Local\Temp\is-8GU3D.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp
PID 2920 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.exe C:\Users\Admin\AppData\Local\Temp\is-8GU3D.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp
PID 1888 wrote to memory of 1344 N/A C:\Users\Admin\AppData\Local\Temp\is-8GU3D.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 1888 wrote to memory of 1344 N/A C:\Users\Admin\AppData\Local\Temp\is-8GU3D.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 1888 wrote to memory of 1344 N/A C:\Users\Admin\AppData\Local\Temp\is-8GU3D.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 1888 wrote to memory of 3388 N/A C:\Users\Admin\AppData\Local\Temp\is-8GU3D.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 1888 wrote to memory of 3388 N/A C:\Users\Admin\AppData\Local\Temp\is-8GU3D.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 1888 wrote to memory of 3388 N/A C:\Users\Admin\AppData\Local\Temp\is-8GU3D.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.exe

"C:\Users\Admin\AppData\Local\Temp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.exe"

C:\Users\Admin\AppData\Local\Temp\is-8GU3D.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp

"C:\Users\Admin\AppData\Local\Temp\is-8GU3D.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp" /SL5="$7014A,4756447,54272,C:\Users\Admin\AppData\Local\Temp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.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 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
HK 141.98.234.31:53 bgyntda.com udp
US 8.8.8.8:53 31.234.98.141.in-addr.arpa udp
RU 152.89.198.214:53 bgyntda.com udp
US 8.8.8.8:53 214.198.89.152.in-addr.arpa udp
LT 91.211.247.248:53 bgyntda.com udp
US 8.8.8.8:53 248.247.211.91.in-addr.arpa udp

Files

memory/2920-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2920-3-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-8GU3D.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp

MD5 76649baf78b2e05aaf1db607622a0d95
SHA1 52a006df873b8e8157bbd3aa865bfca236cf4efa
SHA256 9294c66ed302966140cb0cc55793e23ef45486a1973a4a5118cdbb7e872bc096
SHA512 22f9b42eee768ebc0d13cb22d72c2afb3e8da63577cdc5cf2fc680c2dd8a77e2563ee499abe553fa2f13aa7cb338e407c9d4e05938a2794b992e0249af97d2f4

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

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

memory/1888-16-0x0000000000400000-0x00000000004BA000-memory.dmp

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

MD5 7badf5cbed2893d354ac41ef048803b6
SHA1 70211ffdd2d167207846f17b5b58645c8137d07b
SHA256 194f6c147b54accfa1ff74099028bfaf065cdefbf1f7136fbe6f53546942f80a
SHA512 325edf1fd58f00d26b225310bd4745795757774a3924bd4cd299552d6d2ea47de99573eb962ac7943813e36f0d8fca4f86291063987113bae272506b2c02ad4a

memory/1344-59-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1344-60-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1344-65-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1344-64-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3388-67-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2920-69-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1888-70-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/3388-71-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3388-74-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3388-77-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3388-80-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3388-83-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3388-85-0x00000000009B0000-0x0000000000A52000-memory.dmp

memory/3388-88-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3388-93-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3388-96-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3388-99-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3388-102-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3388-105-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3388-108-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3388-111-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3388-114-0x0000000000400000-0x00000000006C8000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-24 21:41

Reported

2024-06-24 21:44

Platform

win11-20240611-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.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

Enumerates physical storage devices

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-QMPG4.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3748 wrote to memory of 4488 N/A C:\Users\Admin\AppData\Local\Temp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.exe C:\Users\Admin\AppData\Local\Temp\is-QMPG4.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp
PID 3748 wrote to memory of 4488 N/A C:\Users\Admin\AppData\Local\Temp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.exe C:\Users\Admin\AppData\Local\Temp\is-QMPG4.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp
PID 3748 wrote to memory of 4488 N/A C:\Users\Admin\AppData\Local\Temp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.exe C:\Users\Admin\AppData\Local\Temp\is-QMPG4.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp
PID 4488 wrote to memory of 2960 N/A C:\Users\Admin\AppData\Local\Temp\is-QMPG4.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4488 wrote to memory of 2960 N/A C:\Users\Admin\AppData\Local\Temp\is-QMPG4.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4488 wrote to memory of 2960 N/A C:\Users\Admin\AppData\Local\Temp\is-QMPG4.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4488 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\is-QMPG4.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4488 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\is-QMPG4.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 4488 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\is-QMPG4.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.exe

"C:\Users\Admin\AppData\Local\Temp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.exe"

C:\Users\Admin\AppData\Local\Temp\is-QMPG4.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp

"C:\Users\Admin\AppData\Local\Temp\is-QMPG4.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp" /SL5="$40242,4756447,54272,C:\Users\Admin\AppData\Local\Temp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.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 52.111.236.22:443 tcp
LT 91.211.247.248:53 beypedd.com udp
TR 94.156.8.80:80 beypedd.com tcp
TR 94.156.8.80:80 beypedd.com tcp
TR 94.156.8.80:80 beypedd.com tcp

Files

memory/3748-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3748-3-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-QMPG4.tmp\6cd159f294e7f71edcdf6309d09b2e95768cd51936bac63fe3e522a6a64f78bc.tmp

MD5 76649baf78b2e05aaf1db607622a0d95
SHA1 52a006df873b8e8157bbd3aa865bfca236cf4efa
SHA256 9294c66ed302966140cb0cc55793e23ef45486a1973a4a5118cdbb7e872bc096
SHA512 22f9b42eee768ebc0d13cb22d72c2afb3e8da63577cdc5cf2fc680c2dd8a77e2563ee499abe553fa2f13aa7cb338e407c9d4e05938a2794b992e0249af97d2f4

memory/4488-10-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-6DHJ3.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5 7badf5cbed2893d354ac41ef048803b6
SHA1 70211ffdd2d167207846f17b5b58645c8137d07b
SHA256 194f6c147b54accfa1ff74099028bfaf065cdefbf1f7136fbe6f53546942f80a
SHA512 325edf1fd58f00d26b225310bd4745795757774a3924bd4cd299552d6d2ea47de99573eb962ac7943813e36f0d8fca4f86291063987113bae272506b2c02ad4a

memory/2960-59-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2960-60-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1992-68-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2960-65-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/2960-63-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3748-69-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4488-70-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/1992-71-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1992-74-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1992-77-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1992-80-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1992-83-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1992-84-0x0000000000A00000-0x0000000000AA2000-memory.dmp

memory/1992-89-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1992-94-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1992-97-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1992-100-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1992-103-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1992-106-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1992-109-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1992-112-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1992-115-0x0000000000400000-0x00000000006C8000-memory.dmp