Malware Analysis Report

2024-12-07 16:36

Sample ID 241114-c2k7zatckf
Target 4da05e5a2f279ce84b2fb342338c2a3d3a7f3f724c63d663f6aee2c49aba3e62N
SHA256 4da05e5a2f279ce84b2fb342338c2a3d3a7f3f724c63d663f6aee2c49aba3e62
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

4da05e5a2f279ce84b2fb342338c2a3d3a7f3f724c63d663f6aee2c49aba3e62

Threat Level: Shows suspicious behavior

The file 4da05e5a2f279ce84b2fb342338c2a3d3a7f3f724c63d663f6aee2c49aba3e62N was found to be: Shows suspicious behavior.

Malicious Activity Summary

defense_evasion discovery persistence upx

Deletes itself

Loads dropped DLL

Checks computer location settings

Executes dropped EXE

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 AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-14 02:34

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

2024-11-14 02:34

Reported

2024-11-14 02:36

Platform

win7-20240903-en

Max time kernel

118s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4da05e5a2f279ce84b2fb342338c2a3d3a7f3f724c63d663f6aee2c49aba3e62N.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\AhnLab\AhnSvc.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\AhnUpadate = "\"C:\\ProgramData\\AhnLab\\AhnSvc.exe\" /run" C:\Users\Admin\AppData\Local\Temp\4da05e5a2f279ce84b2fb342338c2a3d3a7f3f724c63d663f6aee2c49aba3e62N.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\4da05e5a2f279ce84b2fb342338c2a3d3a7f3f724c63d663f6aee2c49aba3e62N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4da05e5a2f279ce84b2fb342338c2a3d3a7f3f724c63d663f6aee2c49aba3e62N.exe N/A
Token: SeDebugPrivilege N/A C:\ProgramData\AhnLab\AhnSvc.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4da05e5a2f279ce84b2fb342338c2a3d3a7f3f724c63d663f6aee2c49aba3e62N.exe

"C:\Users\Admin\AppData\Local\Temp\4da05e5a2f279ce84b2fb342338c2a3d3a7f3f724c63d663f6aee2c49aba3e62N.exe"

C:\ProgramData\AhnLab\AhnSvc.exe

"C:\ProgramData\AhnLab\AhnSvc.exe" /run

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\4da05e5a2f279ce84b2fb342338c2a3d3a7f3f724c63d663f6aee2c49aba3e62N.exe" >> NUL

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.icoway.net udp
US 8.8.8.8:53 www.kimc10scom udp

Files

memory/2696-0-0x00000000008A0000-0x00000000008CA000-memory.dmp

\ProgramData\AhnLab\AhnSvc.exe

MD5 4446852f0fbb0d3276d8cad8454f7885
SHA1 6c4458665abd76930dcaddc14ecb5cca35a8bd12
SHA256 f8d1023f32b695875939b675919da90dc6cce94d4625c82f920a44d55e22413a
SHA512 9a6d41504490d8d03fc02016414c47dc0697c12709f72751681f8f2869015e1651dfcd7ad1eadb1a7ae7dea2bf1e0b3e907381e57bf344eb31845554a183273e

memory/3024-11-0x0000000000BB0000-0x0000000000BDA000-memory.dmp

memory/2696-10-0x0000000000110000-0x000000000013A000-memory.dmp

memory/2696-9-0x0000000000110000-0x000000000013A000-memory.dmp

memory/2696-12-0x00000000008A0000-0x00000000008CA000-memory.dmp

memory/2696-13-0x0000000000110000-0x000000000013A000-memory.dmp

memory/3024-14-0x0000000000BB0000-0x0000000000BDA000-memory.dmp

memory/2696-15-0x00000000008A0000-0x00000000008CA000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-14 02:34

Reported

2024-11-14 02:36

Platform

win10v2004-20241007-en

Max time kernel

118s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4da05e5a2f279ce84b2fb342338c2a3d3a7f3f724c63d663f6aee2c49aba3e62N.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\4da05e5a2f279ce84b2fb342338c2a3d3a7f3f724c63d663f6aee2c49aba3e62N.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\ProgramData\AhnLab\AhnSvc.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\AhnUpadate = "\"C:\\ProgramData\\AhnLab\\AhnSvc.exe\" /run" C:\Users\Admin\AppData\Local\Temp\4da05e5a2f279ce84b2fb342338c2a3d3a7f3f724c63d663f6aee2c49aba3e62N.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\4da05e5a2f279ce84b2fb342338c2a3d3a7f3f724c63d663f6aee2c49aba3e62N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\ProgramData\AhnLab\AhnSvc.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4da05e5a2f279ce84b2fb342338c2a3d3a7f3f724c63d663f6aee2c49aba3e62N.exe N/A
Token: SeDebugPrivilege N/A C:\ProgramData\AhnLab\AhnSvc.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4da05e5a2f279ce84b2fb342338c2a3d3a7f3f724c63d663f6aee2c49aba3e62N.exe

"C:\Users\Admin\AppData\Local\Temp\4da05e5a2f279ce84b2fb342338c2a3d3a7f3f724c63d663f6aee2c49aba3e62N.exe"

C:\ProgramData\AhnLab\AhnSvc.exe

"C:\ProgramData\AhnLab\AhnSvc.exe" /run

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\4da05e5a2f279ce84b2fb342338c2a3d3a7f3f724c63d663f6aee2c49aba3e62N.exe" >> NUL

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 www.icoway.net udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 www.kimc10scom udp
US 8.8.8.8:53 www.icoway.net udp
US 8.8.8.8:53 www.kimc10scom udp
US 8.8.8.8:53 www.icoway.net udp
US 8.8.8.8:53 www.kimc10scom udp
US 8.8.8.8:53 www.icoway.net udp
US 8.8.8.8:53 www.kimc10scom udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 24.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 www.icoway.net udp
US 8.8.8.8:53 www.kimc10scom udp
US 8.8.8.8:53 www.icoway.net udp
US 8.8.8.8:53 www.kimc10scom udp
US 8.8.8.8:53 www.icoway.net udp
US 8.8.8.8:53 www.kimc10scom udp
US 8.8.8.8:53 www.icoway.net udp
US 8.8.8.8:53 www.kimc10scom udp
US 8.8.8.8:53 www.icoway.net udp
US 8.8.8.8:53 www.kimc10scom udp
US 8.8.8.8:53 www.icoway.net udp
US 8.8.8.8:53 www.kimc10scom udp
US 8.8.8.8:53 www.icoway.net udp
US 8.8.8.8:53 www.kimc10scom udp
US 8.8.8.8:53 www.icoway.net udp
US 8.8.8.8:53 www.kimc10scom udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 www.icoway.net udp
US 8.8.8.8:53 www.kimc10scom udp
US 8.8.8.8:53 www.icoway.net udp
US 8.8.8.8:53 www.kimc10scom udp
US 8.8.8.8:53 www.icoway.net udp
US 8.8.8.8:53 www.kimc10scom udp

Files

memory/2360-0-0x0000000000DA0000-0x0000000000DCA000-memory.dmp

C:\ProgramData\AhnLab\AhnSvc.exe

MD5 269c87b57d563d60bbb03d19f446d040
SHA1 05307434a0cd94f2008750414f3715151dccfff3
SHA256 9357a8c41f412306d411da725490128b1e4a7e9ca8cb754acf40a33dab63e79c
SHA512 7e51b4efd53cd4b5ae5a7c34648ea69c35228baa70f552898a415658a92bafac8dcec1845e7320bc0c820c3432f9f9aae6b4157bfac73b6d0a507f63643ec2c9

memory/1956-5-0x0000000000250000-0x000000000027A000-memory.dmp

memory/2360-8-0x0000000000DA0000-0x0000000000DCA000-memory.dmp

memory/1956-9-0x0000000000250000-0x000000000027A000-memory.dmp

memory/1956-10-0x0000000000250000-0x000000000027A000-memory.dmp