Malware Analysis Report

2024-12-07 17:07

Sample ID 241113-kkmcpsxqbz
Target 00f38413d5bbd9c75f220f12c4e203a41d293a2227f2e561f72ff0a4eee7423c.exe
SHA256 00f38413d5bbd9c75f220f12c4e203a41d293a2227f2e561f72ff0a4eee7423c
Tags
upx defense_evasion discovery persistence
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

00f38413d5bbd9c75f220f12c4e203a41d293a2227f2e561f72ff0a4eee7423c

Threat Level: Shows suspicious behavior

The file 00f38413d5bbd9c75f220f12c4e203a41d293a2227f2e561f72ff0a4eee7423c.exe was found to be: Shows suspicious behavior.

Malicious Activity Summary

upx defense_evasion discovery persistence

Deletes itself

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Adds Run key to start application

Indicator Removal: File Deletion

UPX packed file

Unsigned PE

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-13 08:39

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 08:39

Reported

2024-11-13 08:41

Platform

win7-20240708-en

Max time kernel

30s

Max time network

21s

Command Line

"C:\Users\Admin\AppData\Local\Temp\00f38413d5bbd9c75f220f12c4e203a41d293a2227f2e561f72ff0a4eee7423c.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\Update\wuauclt.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Window Update = "\"C:\\ProgramData\\Update\\wuauclt.exe\" /run" C:\Users\Admin\AppData\Local\Temp\00f38413d5bbd9c75f220f12c4e203a41d293a2227f2e561f72ff0a4eee7423c.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

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:\Users\Admin\AppData\Local\Temp\00f38413d5bbd9c75f220f12c4e203a41d293a2227f2e561f72ff0a4eee7423c.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\ProgramData\Update\wuauclt.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\00f38413d5bbd9c75f220f12c4e203a41d293a2227f2e561f72ff0a4eee7423c.exe

"C:\Users\Admin\AppData\Local\Temp\00f38413d5bbd9c75f220f12c4e203a41d293a2227f2e561f72ff0a4eee7423c.exe"

C:\ProgramData\Update\wuauclt.exe

"C:\ProgramData\Update\wuauclt.exe" /run

C:\windows\SysWOW64\cmd.exe

"C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\00f38413d5bbd9c75f220f12c4e203a41d293a2227f2e561f72ff0a4eee7423c.exe" >> NUL

Network

Country Destination Domain Proto
CA 158.69.115.115:443 tcp

Files

memory/2316-0-0x0000000000840000-0x0000000000868000-memory.dmp

\ProgramData\Update\wuauclt.exe

MD5 17041456ffee3a781fdebc6e092a7ecf
SHA1 27774d1e7ce2bc9a5f97142f7a3a0c01871b7427
SHA256 ae9e8b799ec8d41d7c68ea2f24c8100336cc71b90637e45e4750cc77c4d66c21
SHA512 b142d4212393428acd7cbb805a189c12a2d581be863d72b99e87f532c882ce4a760cbcf009cf3a5daa2f14b77ed764eb039548254dc6312e1727dd647ebfa5f5

memory/3044-7-0x0000000000A30000-0x0000000000A58000-memory.dmp

memory/2316-6-0x0000000000080000-0x00000000000A8000-memory.dmp

memory/2316-8-0x0000000000840000-0x0000000000868000-memory.dmp

memory/2316-9-0x0000000000080000-0x00000000000A8000-memory.dmp

memory/2316-10-0x0000000000840000-0x0000000000868000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-13 08:39

Reported

2024-11-13 08:41

Platform

win10v2004-20241007-en

Max time kernel

94s

Max time network

96s

Command Line

"C:\Users\Admin\AppData\Local\Temp\00f38413d5bbd9c75f220f12c4e203a41d293a2227f2e561f72ff0a4eee7423c.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\00f38413d5bbd9c75f220f12c4e203a41d293a2227f2e561f72ff0a4eee7423c.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\Update\wuauclt.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Window Update = "\"C:\\ProgramData\\Update\\wuauclt.exe\" /run" C:\Users\Admin\AppData\Local\Temp\00f38413d5bbd9c75f220f12c4e203a41d293a2227f2e561f72ff0a4eee7423c.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:\Users\Admin\AppData\Local\Temp\00f38413d5bbd9c75f220f12c4e203a41d293a2227f2e561f72ff0a4eee7423c.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\ProgramData\Update\wuauclt.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\00f38413d5bbd9c75f220f12c4e203a41d293a2227f2e561f72ff0a4eee7423c.exe

"C:\Users\Admin\AppData\Local\Temp\00f38413d5bbd9c75f220f12c4e203a41d293a2227f2e561f72ff0a4eee7423c.exe"

C:\ProgramData\Update\wuauclt.exe

"C:\ProgramData\Update\wuauclt.exe" /run

C:\windows\SysWOW64\cmd.exe

"C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\00f38413d5bbd9c75f220f12c4e203a41d293a2227f2e561f72ff0a4eee7423c.exe" >> NUL

Network

Country Destination Domain Proto
CA 158.69.115.115:443 tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/2304-0-0x0000000000080000-0x00000000000A8000-memory.dmp

C:\ProgramData\Update\wuauclt.exe

MD5 d0cf1755f339acf7f93cef7988dd797f
SHA1 89d43eb12667df93ffdae105fc418053adc2f54a
SHA256 b2d6332c166759462100732709f66689528cfa9654ad40a147751f7ce958d35e
SHA512 c4524af78a6cf7e2c8c34739e0f7387e477769a3a1a272c4407936872517ded388e162780e24a35ae4a236bb9b6f7316b3f2cca8e5fa6d5877fdf0941c0d63b7

memory/636-5-0x00000000001B0000-0x00000000001D8000-memory.dmp

memory/2304-6-0x0000000000080000-0x00000000000A8000-memory.dmp

memory/636-7-0x00000000001B0000-0x00000000001D8000-memory.dmp

memory/2304-8-0x0000000000080000-0x00000000000A8000-memory.dmp