Malware Analysis Report

2024-12-07 16:48

Sample ID 241113-k45cmaygka
Target 60437f4f08f9afecdcf55a0faa139ddbc2b3e9161805f3532612a7ca27e22886.exe
SHA256 60437f4f08f9afecdcf55a0faa139ddbc2b3e9161805f3532612a7ca27e22886
Tags
upx defense_evasion discovery
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

60437f4f08f9afecdcf55a0faa139ddbc2b3e9161805f3532612a7ca27e22886

Threat Level: Shows suspicious behavior

The file 60437f4f08f9afecdcf55a0faa139ddbc2b3e9161805f3532612a7ca27e22886.exe was found to be: Shows suspicious behavior.

Malicious Activity Summary

upx defense_evasion discovery

Executes dropped EXE

Deletes itself

Checks computer location settings

Indicator Removal: File Deletion

UPX packed file

Drops file in Windows directory

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Unsigned PE

Checks processor information in registry

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-13 09:10

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 09:10

Reported

2024-11-13 09:12

Platform

win7-20240903-en

Max time kernel

110s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\60437f4f08f9afecdcf55a0faa139ddbc2b3e9161805f3532612a7ca27e22886.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:\Windows\Debug\iuyhost.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

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\Debug\iuyhost.exe C:\Users\Admin\AppData\Local\Temp\60437f4f08f9afecdcf55a0faa139ddbc2b3e9161805f3532612a7ca27e22886.exe N/A
File opened for modification C:\Windows\Debug\iuyhost.exe C:\Users\Admin\AppData\Local\Temp\60437f4f08f9afecdcf55a0faa139ddbc2b3e9161805f3532612a7ca27e22886.exe 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\60437f4f08f9afecdcf55a0faa139ddbc2b3e9161805f3532612a7ca27e22886.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Debug\iuyhost.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Windows\Debug\iuyhost.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\Windows\Debug\iuyhost.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\60437f4f08f9afecdcf55a0faa139ddbc2b3e9161805f3532612a7ca27e22886.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\60437f4f08f9afecdcf55a0faa139ddbc2b3e9161805f3532612a7ca27e22886.exe

"C:\Users\Admin\AppData\Local\Temp\60437f4f08f9afecdcf55a0faa139ddbc2b3e9161805f3532612a7ca27e22886.exe"

C:\Windows\Debug\iuyhost.exe

C:\Windows\Debug\iuyhost.exe

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\60437F~1.EXE > nul

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.baidu.com udp
HK 103.235.47.188:80 www.baidu.com tcp
US 8.8.8.8:53 M98dP3XdpQ.nnnn.eu.org udp
US 8.8.8.8:53 wpppgX0kZe.nnnn.eu.org udp

Files

memory/2596-0-0x0000000000400000-0x000000000040E000-memory.dmp

C:\Windows\debug\iuyhost.exe

MD5 a8acecdde691075ec7821599b0d475f2
SHA1 90cf20e7efc8dd19051284b5ff58d3f1b3af9216
SHA256 161b23fa88537448bc178f4fb690be28d869f0ab10d5ece53c8297f377c41f73
SHA512 439198492c418ba96addddb844455e5e0314763c293c01a7f2832618b1a58cc439b3e74d7d329a6f332e32d2f29de52e0caf3f96a23101a376c07f9fcdf2163b

memory/2596-4-0x0000000000400000-0x000000000040E000-memory.dmp

memory/2428-5-0x0000000000400000-0x000000000040E000-memory.dmp

memory/2428-11-0x0000000000400000-0x000000000040E000-memory.dmp

memory/2428-14-0x0000000000400000-0x000000000040E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-13 09:10

Reported

2024-11-13 09:12

Platform

win10v2004-20241007-en

Max time kernel

111s

Max time network

95s

Command Line

"C:\Users\Admin\AppData\Local\Temp\60437f4f08f9afecdcf55a0faa139ddbc2b3e9161805f3532612a7ca27e22886.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\60437f4f08f9afecdcf55a0faa139ddbc2b3e9161805f3532612a7ca27e22886.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\Debug\akmhost.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

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\Debug\akmhost.exe C:\Users\Admin\AppData\Local\Temp\60437f4f08f9afecdcf55a0faa139ddbc2b3e9161805f3532612a7ca27e22886.exe N/A
File opened for modification C:\Windows\Debug\akmhost.exe C:\Users\Admin\AppData\Local\Temp\60437f4f08f9afecdcf55a0faa139ddbc2b3e9161805f3532612a7ca27e22886.exe 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\60437f4f08f9afecdcf55a0faa139ddbc2b3e9161805f3532612a7ca27e22886.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Debug\akmhost.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Windows\Debug\akmhost.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\Windows\Debug\akmhost.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\60437f4f08f9afecdcf55a0faa139ddbc2b3e9161805f3532612a7ca27e22886.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\60437f4f08f9afecdcf55a0faa139ddbc2b3e9161805f3532612a7ca27e22886.exe

"C:\Users\Admin\AppData\Local\Temp\60437f4f08f9afecdcf55a0faa139ddbc2b3e9161805f3532612a7ca27e22886.exe"

C:\Windows\Debug\akmhost.exe

C:\Windows\Debug\akmhost.exe

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\60437F~1.EXE > nul

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 www.baidu.com udp
HK 103.235.46.96:80 www.baidu.com tcp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 96.46.235.103.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 Q0GFmODP8m.nnnn.eu.org udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 0CRQXMDXMU.nnnn.eu.org udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp

Files

memory/1952-0-0x0000000000400000-0x000000000040E000-memory.dmp

C:\Windows\Debug\akmhost.exe

MD5 b682ac6d0a07970c8c5d71ff08df90e5
SHA1 3f967b362913b8a7f891e99b459b4fe2445caf31
SHA256 ea46a0dd43dbe3a57fa8f84508dc5316cafe4029c51c41cd118ec15bc0aef6a6
SHA512 771f2e19b1b3ecd098b14464f39b3a41900054afb790391ca8376acc323072c8520750e47a9e45c9077a48e26276abad0c71755089bc1056c3c0e0566d94b7d0

memory/1952-6-0x0000000000400000-0x000000000040E000-memory.dmp

memory/3556-7-0x0000000000400000-0x000000000040E000-memory.dmp

memory/3556-13-0x0000000000400000-0x000000000040E000-memory.dmp

memory/3556-16-0x0000000000400000-0x000000000040E000-memory.dmp