Malware Analysis Report

2024-12-07 17:07

Sample ID 241113-ffckgswhjr
Target 2753f9871c2152b4093544fc1c784b0baed86571b48d4b6d0d90ef3bf6d053ee.exe
SHA256 2753f9871c2152b4093544fc1c784b0baed86571b48d4b6d0d90ef3bf6d053ee
Tags
defense_evasion discovery persistence upx
score
7/10

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
7/10

SHA256

2753f9871c2152b4093544fc1c784b0baed86571b48d4b6d0d90ef3bf6d053ee

Threat Level: Shows suspicious behavior

The file 2753f9871c2152b4093544fc1c784b0baed86571b48d4b6d0d90ef3bf6d053ee.exe was found to be: Shows suspicious behavior.

Malicious Activity Summary

defense_evasion discovery persistence upx

Loads dropped DLL

Executes dropped EXE

Checks computer location settings

Deletes itself

Adds Run key to start application

Indicator Removal: File Deletion

UPX packed file

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-13 04:48

Signatures

UPX packed file

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-13 04:48

Reported

2024-11-13 04:50

Platform

win7-20241010-en

Max time kernel

117s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2753f9871c2152b4093544fc1c784b0baed86571b48d4b6d0d90ef3bf6d053ee.exe"

Signatures

Deletes itself

Description Indicator Process Target
N/A N/A C:\windows\SysWOW64\cmd.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\Graphics\guifx.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\Graphics = "\"C:\\ProgramData\\Graphics\\guifx.exe\" /run" C:\Users\Admin\AppData\Local\Temp\2753f9871c2152b4093544fc1c784b0baed86571b48d4b6d0d90ef3bf6d053ee.exe N/A

Indicator Removal: File Deletion

defense_evasion

UPX packed file

upx
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
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

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\2753f9871c2152b4093544fc1c784b0baed86571b48d4b6d0d90ef3bf6d053ee.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\ProgramData\Graphics\guifx.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\windows\SysWOW64\cmd.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2753f9871c2152b4093544fc1c784b0baed86571b48d4b6d0d90ef3bf6d053ee.exe

"C:\Users\Admin\AppData\Local\Temp\2753f9871c2152b4093544fc1c784b0baed86571b48d4b6d0d90ef3bf6d053ee.exe"

C:\ProgramData\Graphics\guifx.exe

"C:\ProgramData\Graphics\guifx.exe" /run

C:\windows\SysWOW64\cmd.exe

"C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\2753f9871c2152b4093544fc1c784b0baed86571b48d4b6d0d90ef3bf6d053ee.exe" >> NUL

Network

Country Destination Domain Proto
KR 165.194.123.67:443 tcp
KR 165.194.123.67:443 tcp

Files

memory/2708-0-0x0000000000DA0000-0x0000000000DBC000-memory.dmp

\ProgramData\Graphics\guifx.exe

MD5 374f460ffc36b2ed6ed46dc4a88d3002
SHA1 c8ca7c8d244d6a5324b9736c66b5b858857c2233
SHA256 b9efa4e4156d705c980522c16011898bb3c1bba846ea2faf7b72b17b07122f1b
SHA512 ac1bfcab064c2aa998a35978be6422c6a1e8c39581a3cb4b972a66ee17c32f23918717acd7f1997205b160c71c5720b5a33ec5874c6123f3492a92d00b4a6fff

memory/2868-7-0x0000000000CF0000-0x0000000000D0C000-memory.dmp

memory/2708-6-0x0000000000CF0000-0x0000000000D0C000-memory.dmp

memory/2708-8-0x0000000000DA0000-0x0000000000DBC000-memory.dmp

memory/2708-9-0x0000000000CF0000-0x0000000000D0C000-memory.dmp

memory/2868-10-0x0000000000CF0000-0x0000000000D0C000-memory.dmp

memory/2708-11-0x0000000000DA0000-0x0000000000DBC000-memory.dmp

memory/2708-12-0x0000000000CF0000-0x0000000000D0C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-13 04:48

Reported

2024-11-13 04:50

Platform

win10v2004-20241007-en

Max time kernel

94s

Max time network

97s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2753f9871c2152b4093544fc1c784b0baed86571b48d4b6d0d90ef3bf6d053ee.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2753f9871c2152b4093544fc1c784b0baed86571b48d4b6d0d90ef3bf6d053ee.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\Graphics\guifx.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Graphics = "\"C:\\ProgramData\\Graphics\\guifx.exe\" /run" C:\Users\Admin\AppData\Local\Temp\2753f9871c2152b4093544fc1c784b0baed86571b48d4b6d0d90ef3bf6d053ee.exe N/A

Indicator Removal: File Deletion

defense_evasion

UPX packed file

upx
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
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2753f9871c2152b4093544fc1c784b0baed86571b48d4b6d0d90ef3bf6d053ee.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\ProgramData\Graphics\guifx.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2753f9871c2152b4093544fc1c784b0baed86571b48d4b6d0d90ef3bf6d053ee.exe

"C:\Users\Admin\AppData\Local\Temp\2753f9871c2152b4093544fc1c784b0baed86571b48d4b6d0d90ef3bf6d053ee.exe"

C:\ProgramData\Graphics\guifx.exe

"C:\ProgramData\Graphics\guifx.exe" /run

C:\windows\SysWOW64\cmd.exe

"C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\2753f9871c2152b4093544fc1c784b0baed86571b48d4b6d0d90ef3bf6d053ee.exe" >> NUL

Network

Country Destination Domain Proto
KR 165.194.123.67:443 tcp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
KR 165.194.123.67:443 tcp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp

Files

memory/3124-0-0x00000000005F0000-0x000000000060C000-memory.dmp

memory/884-4-0x0000000000300000-0x000000000031C000-memory.dmp

C:\ProgramData\Graphics\guifx.exe

MD5 f472f5db765127d8901386e0596c95ff
SHA1 d2be15b0459515c82a9fe9f21535b7838b9d38f0
SHA256 6f69d1ab9e43eefd8a76f3b7d73c9c87bdfdde243f487f813adf48d44295c5dd
SHA512 827893192cdba30dd8862a2597794d739c526f12321bb1edd090c635855da2fa4ca6e1c2cda4a1044c88b1848b8c27d9b59b37e79858801001335202a41254f7

memory/3124-6-0x00000000005F0000-0x000000000060C000-memory.dmp

memory/884-7-0x0000000000300000-0x000000000031C000-memory.dmp

memory/3124-8-0x00000000005F0000-0x000000000060C000-memory.dmp