Malware Analysis Report

2024-10-23 17:09

Sample ID 210727-kkvgchhhls
Target 80deed939a520696968335d1bb2a9fcce7053c0156f679ba261824d0a2d44967.bin
SHA256 80deed939a520696968335d1bb2a9fcce7053c0156f679ba261824d0a2d44967
Tags
plugx trojan upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

80deed939a520696968335d1bb2a9fcce7053c0156f679ba261824d0a2d44967

Threat Level: Known bad

The file 80deed939a520696968335d1bb2a9fcce7053c0156f679ba261824d0a2d44967.bin was found to be: Known bad.

Malicious Activity Summary

plugx trojan upx

PlugX

PlugX Rat Payload

ACProtect 1.3x - 1.4x DLL software

UPX packed file

Executes dropped EXE

Loads dropped DLL

Drops file in System32 directory

Suspicious use of AdjustPrivilegeToken

Modifies registry class

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2022-03-10 15:58

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-07-27 22:10

Reported

2021-07-27 22:13

Platform

win7v20210408

Max time kernel

0s

Max time network

38s

Command Line

"C:\Users\Admin\AppData\Local\Temp\80deed939a520696968335d1bb2a9fcce7053c0156f679ba261824d0a2d44967.bin.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\80deed939a520696968335d1bb2a9fcce7053c0156f679ba261824d0a2d44967.bin.exe

"C:\Users\Admin\AppData\Local\Temp\80deed939a520696968335d1bb2a9fcce7053c0156f679ba261824d0a2d44967.bin.exe"

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2021-07-27 22:10

Reported

2021-07-27 22:12

Platform

win10v20210410

Max time kernel

150s

Max time network

156s

Command Line

"C:\Users\Admin\AppData\Local\Temp\80deed939a520696968335d1bb2a9fcce7053c0156f679ba261824d0a2d44967.bin.exe"

Signatures

PlugX

trojan plugx

PlugX Rat Payload

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

ACProtect 1.3x - 1.4x DLL software

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

Executes dropped EXE

Description Indicator Process Target
N/A N/A \??\c:\windows\temp\AROTutorial.exe N/A
N/A N/A C:\ProgramData\ARO\AROTutorial.exe N/A

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

Loads dropped DLL

Description Indicator Process Target
N/A N/A \??\c:\windows\temp\AROTutorial.exe N/A
N/A N/A C:\ProgramData\ARO\AROTutorial.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies C:\Windows\SysWOW64\svchost.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 C:\Windows\SysWOW64\svchost.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\counters2.dat C:\Windows\SysWOW64\svchost.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 C:\Windows\SysWOW64\svchost.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE C:\Windows\SysWOW64\svchost.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\Software\CLASSES\KET.FAST C:\Windows\SysWOW64\svchost.exe N/A
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\KET.FAST\CLSID = 41004500380045003700360045003000390041004500430045003600360033000000 C:\Windows\SysWOW64\svchost.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A
N/A N/A C:\Windows\SysWOW64\userinit.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A \??\c:\windows\temp\AROTutorial.exe N/A
Token: SeTcbPrivilege N/A \??\c:\windows\temp\AROTutorial.exe N/A
Token: SeDebugPrivilege N/A C:\ProgramData\ARO\AROTutorial.exe N/A
Token: SeTcbPrivilege N/A C:\ProgramData\ARO\AROTutorial.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\svchost.exe N/A
Token: SeTcbPrivilege N/A C:\Windows\SysWOW64\svchost.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\userinit.exe N/A
Token: SeTcbPrivilege N/A C:\Windows\SysWOW64\userinit.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4436 wrote to memory of 4624 N/A C:\Users\Admin\AppData\Local\Temp\80deed939a520696968335d1bb2a9fcce7053c0156f679ba261824d0a2d44967.bin.exe \??\c:\windows\temp\AROTutorial.exe
PID 4436 wrote to memory of 4624 N/A C:\Users\Admin\AppData\Local\Temp\80deed939a520696968335d1bb2a9fcce7053c0156f679ba261824d0a2d44967.bin.exe \??\c:\windows\temp\AROTutorial.exe
PID 4436 wrote to memory of 4624 N/A C:\Users\Admin\AppData\Local\Temp\80deed939a520696968335d1bb2a9fcce7053c0156f679ba261824d0a2d44967.bin.exe \??\c:\windows\temp\AROTutorial.exe
PID 4772 wrote to memory of 4864 N/A C:\ProgramData\ARO\AROTutorial.exe C:\Windows\SysWOW64\svchost.exe
PID 4772 wrote to memory of 4864 N/A C:\ProgramData\ARO\AROTutorial.exe C:\Windows\SysWOW64\svchost.exe
PID 4772 wrote to memory of 4864 N/A C:\ProgramData\ARO\AROTutorial.exe C:\Windows\SysWOW64\svchost.exe
PID 4772 wrote to memory of 4864 N/A C:\ProgramData\ARO\AROTutorial.exe C:\Windows\SysWOW64\svchost.exe
PID 4772 wrote to memory of 4864 N/A C:\ProgramData\ARO\AROTutorial.exe C:\Windows\SysWOW64\svchost.exe
PID 4772 wrote to memory of 4864 N/A C:\ProgramData\ARO\AROTutorial.exe C:\Windows\SysWOW64\svchost.exe
PID 4772 wrote to memory of 4864 N/A C:\ProgramData\ARO\AROTutorial.exe C:\Windows\SysWOW64\svchost.exe
PID 4864 wrote to memory of 4060 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\userinit.exe
PID 4864 wrote to memory of 4060 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\userinit.exe
PID 4864 wrote to memory of 4060 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\userinit.exe
PID 4864 wrote to memory of 4060 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\userinit.exe
PID 4864 wrote to memory of 4060 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\userinit.exe
PID 4864 wrote to memory of 4060 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\userinit.exe
PID 4864 wrote to memory of 4060 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\userinit.exe

Processes

C:\Users\Admin\AppData\Local\Temp\80deed939a520696968335d1bb2a9fcce7053c0156f679ba261824d0a2d44967.bin.exe

"C:\Users\Admin\AppData\Local\Temp\80deed939a520696968335d1bb2a9fcce7053c0156f679ba261824d0a2d44967.bin.exe"

\??\c:\windows\temp\AROTutorial.exe

c:\windows\temp\AROTutorial.exe

C:\ProgramData\ARO\AROTutorial.exe

"C:\ProgramData\ARO\AROTutorial.exe" 600 0

C:\Windows\SysWOW64\svchost.exe

C:\Windows\system32\svchost.exe 601 0

C:\Windows\SysWOW64\userinit.exe

C:\Windows\system32\userinit.exe 609 4864

Network

Country Destination Domain Proto
JP 108.61.182.34:443 tcp
N/A 10.10.0.255:63 udp
JP 108.61.182.34:443 tcp
JP 108.61.182.34:443 udp
JP 108.61.182.34:80 tcp
JP 108.61.182.34:80 tcp
JP 108.61.182.34:80 udp
JP 108.61.182.34:8080 tcp
JP 108.61.182.34:8080 tcp
JP 108.61.182.34:8080 udp
JP 108.61.182.34:53 tcp

Files

memory/4624-114-0x0000000000000000-mapping.dmp

C:\Windows\Temp\AROTutorial.exe

MD5 64ff0a8730472e36e62ce29a20f61529
SHA1 6e8165999acf896e27db0da266a96189efd335e8
SHA256 18a98c2d905a1da1d9d855e86866921e543f4bf8621faea05eb14d8e5b23b60c
SHA512 46375849a493445f3ac1e757321a02d19822d79e866fac6ab19a99c01f0ec38e70b5c8eb6bf32ddef8d86f046b22a036ded4929a6a0b5b123261d9828b675c6d

\??\c:\windows\temp\AROTutorial.exe

MD5 64ff0a8730472e36e62ce29a20f61529
SHA1 6e8165999acf896e27db0da266a96189efd335e8
SHA256 18a98c2d905a1da1d9d855e86866921e543f4bf8621faea05eb14d8e5b23b60c
SHA512 46375849a493445f3ac1e757321a02d19822d79e866fac6ab19a99c01f0ec38e70b5c8eb6bf32ddef8d86f046b22a036ded4929a6a0b5b123261d9828b675c6d

\??\c:\windows\temp\aross.dll

MD5 9b05caf01254dbd3389ab74d9932ed37
SHA1 7fe8de80c04124b84b800cd284173d86aabedb5e
SHA256 f78bf6711b6f3f24573f2a22804f33cec6741f3f2db449410fa37430021080ab
SHA512 8d35ceae212b203df810010ace168349c4f2488fcc8e0f08d998958b4ea3d120413bf625da729043a52b07e77ee39a2bf86128e3124293a47a9a71b59f30a28b

\??\c:\windows\temp\aross.dat

MD5 60e04d5b3dae8bcd3cfa82d492088869
SHA1 4ccb79d805fd92db08269c2a5cbf40dd94fb1f3b
SHA256 c5dcd3073904fad5d9a8fe1026141a832e05c9ca03a88fee96587921f42773d4
SHA512 0b45cba9df6ec8e355ce412793d900142ee90c7bdc9d5a6e4d33dd48de40f027646344c70501ca914b250ca42a766c2d035152bf29d07bf913915a93f23312cb

\Windows\Temp\aross.dll

MD5 9b05caf01254dbd3389ab74d9932ed37
SHA1 7fe8de80c04124b84b800cd284173d86aabedb5e
SHA256 f78bf6711b6f3f24573f2a22804f33cec6741f3f2db449410fa37430021080ab
SHA512 8d35ceae212b203df810010ace168349c4f2488fcc8e0f08d998958b4ea3d120413bf625da729043a52b07e77ee39a2bf86128e3124293a47a9a71b59f30a28b

C:\ProgramData\ARO\AROTutorial.exe

MD5 64ff0a8730472e36e62ce29a20f61529
SHA1 6e8165999acf896e27db0da266a96189efd335e8
SHA256 18a98c2d905a1da1d9d855e86866921e543f4bf8621faea05eb14d8e5b23b60c
SHA512 46375849a493445f3ac1e757321a02d19822d79e866fac6ab19a99c01f0ec38e70b5c8eb6bf32ddef8d86f046b22a036ded4929a6a0b5b123261d9828b675c6d

C:\ProgramData\ARO\aross.dat

MD5 60e04d5b3dae8bcd3cfa82d492088869
SHA1 4ccb79d805fd92db08269c2a5cbf40dd94fb1f3b
SHA256 c5dcd3073904fad5d9a8fe1026141a832e05c9ca03a88fee96587921f42773d4
SHA512 0b45cba9df6ec8e355ce412793d900142ee90c7bdc9d5a6e4d33dd48de40f027646344c70501ca914b250ca42a766c2d035152bf29d07bf913915a93f23312cb

memory/4864-125-0x0000000000000000-mapping.dmp

C:\ProgramData\ARO\aross.dll

MD5 9b05caf01254dbd3389ab74d9932ed37
SHA1 7fe8de80c04124b84b800cd284173d86aabedb5e
SHA256 f78bf6711b6f3f24573f2a22804f33cec6741f3f2db449410fa37430021080ab
SHA512 8d35ceae212b203df810010ace168349c4f2488fcc8e0f08d998958b4ea3d120413bf625da729043a52b07e77ee39a2bf86128e3124293a47a9a71b59f30a28b

\ProgramData\ARO\aross.dll

MD5 9b05caf01254dbd3389ab74d9932ed37
SHA1 7fe8de80c04124b84b800cd284173d86aabedb5e
SHA256 f78bf6711b6f3f24573f2a22804f33cec6741f3f2db449410fa37430021080ab
SHA512 8d35ceae212b203df810010ace168349c4f2488fcc8e0f08d998958b4ea3d120413bf625da729043a52b07e77ee39a2bf86128e3124293a47a9a71b59f30a28b

C:\ProgramData\ARO\AROTutorial.exe

MD5 64ff0a8730472e36e62ce29a20f61529
SHA1 6e8165999acf896e27db0da266a96189efd335e8
SHA256 18a98c2d905a1da1d9d855e86866921e543f4bf8621faea05eb14d8e5b23b60c
SHA512 46375849a493445f3ac1e757321a02d19822d79e866fac6ab19a99c01f0ec38e70b5c8eb6bf32ddef8d86f046b22a036ded4929a6a0b5b123261d9828b675c6d

memory/4624-127-0x0000000000490000-0x00000000005DA000-memory.dmp

memory/4624-128-0x0000000001FE0000-0x000000000201F000-memory.dmp

memory/4772-129-0x0000000000580000-0x00000000005A5000-memory.dmp

memory/4772-130-0x0000000000C90000-0x0000000000CCF000-memory.dmp

memory/4864-131-0x0000000002ED0000-0x0000000002ED2000-memory.dmp

memory/4864-132-0x0000000003040000-0x00000000030EE000-memory.dmp

memory/4060-133-0x0000000000000000-mapping.dmp

memory/4060-134-0x0000000003480000-0x00000000034BF000-memory.dmp