Malware Analysis Report

2024-09-09 12:19

Sample ID 240529-bjgldsca9v
Target 84dd4b7747d83f5cd5357dbec4d328f0cfe5b9b47652ad099cbceee24df58a66
SHA256 84dd4b7747d83f5cd5357dbec4d328f0cfe5b9b47652ad099cbceee24df58a66
Tags
oss_ak bootkit persistence upx
score
9/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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
9/10

SHA256

84dd4b7747d83f5cd5357dbec4d328f0cfe5b9b47652ad099cbceee24df58a66

Threat Level: Likely malicious

The file 84dd4b7747d83f5cd5357dbec4d328f0cfe5b9b47652ad099cbceee24df58a66 was found to be: Likely malicious.

Malicious Activity Summary

oss_ak bootkit persistence upx

detect oss ak

UPX packed file

Writes to the Master Boot Record (MBR)

Suspicious use of NtSetInformationThreadHideFromDebugger

Unsigned PE

Suspicious use of SetWindowsHookEx

Modifies registry class

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-05-29 01:10

Signatures

detect oss ak

oss_ak
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

2024-05-29 01:10

Reported

2024-05-29 01:12

Platform

win7-20240221-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\84dd4b7747d83f5cd5357dbec4d328f0cfe5b9b47652ad099cbceee24df58a66.exe"

Signatures

detect oss ak

oss_ak
Description Indicator Process Target
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UPX packed file

upx
Description Indicator Process Target
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Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\84dd4b7747d83f5cd5357dbec4d328f0cfe5b9b47652ad099cbceee24df58a66.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\84dd4b7747d83f5cd5357dbec4d328f0cfe5b9b47652ad099cbceee24df58a66.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\84dd4b7747d83f5cd5357dbec4d328f0cfe5b9b47652ad099cbceee24df58a66.exe

"C:\Users\Admin\AppData\Local\Temp\84dd4b7747d83f5cd5357dbec4d328f0cfe5b9b47652ad099cbceee24df58a66.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.xlinyi.cn udp
US 8.8.8.8:53 vv.video.qq.com udp
HK 129.226.102.98:443 vv.video.qq.com tcp
US 8.8.8.8:53 yz.xlinyi.cn udp
CN 106.53.151.139:4625 yz.xlinyi.cn tcp

Files

memory/2264-29-0x00000000002F0000-0x00000000002F1000-memory.dmp

memory/2264-34-0x0000000000340000-0x0000000000341000-memory.dmp

memory/2264-32-0x0000000000340000-0x0000000000341000-memory.dmp

memory/2264-30-0x0000000000340000-0x0000000000341000-memory.dmp

memory/2264-27-0x00000000002F0000-0x00000000002F1000-memory.dmp

memory/2264-24-0x00000000002D0000-0x00000000002D1000-memory.dmp

memory/2264-22-0x00000000002D0000-0x00000000002D1000-memory.dmp

memory/2264-19-0x00000000002B0000-0x00000000002B1000-memory.dmp

memory/2264-17-0x00000000002B0000-0x00000000002B1000-memory.dmp

memory/2264-14-0x00000000002A0000-0x00000000002A1000-memory.dmp

memory/2264-12-0x00000000002A0000-0x00000000002A1000-memory.dmp

memory/2264-9-0x0000000000290000-0x0000000000291000-memory.dmp

memory/2264-35-0x0000000000400000-0x0000000000F5E000-memory.dmp

memory/2264-7-0x0000000000290000-0x0000000000291000-memory.dmp

memory/2264-5-0x0000000000290000-0x0000000000291000-memory.dmp

memory/2264-4-0x0000000000280000-0x0000000000281000-memory.dmp

memory/2264-2-0x0000000000280000-0x0000000000281000-memory.dmp

memory/2264-0-0x0000000000280000-0x0000000000281000-memory.dmp

memory/2264-36-0x000000000092A000-0x0000000000D5A000-memory.dmp

memory/2264-37-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2264-45-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2264-63-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2264-61-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2264-59-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2264-57-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2264-56-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2264-53-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2264-51-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2264-49-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2264-47-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2264-43-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2264-41-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2264-40-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2264-38-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2264-80-0x0000000000400000-0x0000000000F5E000-memory.dmp

memory/2264-81-0x0000000000400000-0x0000000000F5E000-memory.dmp

memory/2264-82-0x0000000000400000-0x0000000000F5E000-memory.dmp

memory/2264-83-0x0000000000400000-0x0000000000F5E000-memory.dmp

memory/2264-84-0x0000000000400000-0x0000000000F5E000-memory.dmp

memory/2264-85-0x0000000000400000-0x0000000000F5E000-memory.dmp

memory/2264-86-0x0000000000400000-0x0000000000F5E000-memory.dmp

memory/2264-87-0x000000000092A000-0x0000000000D5A000-memory.dmp

memory/2264-88-0x0000000000400000-0x0000000000F5E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-29 01:10

Reported

2024-05-29 01:12

Platform

win10v2004-20240426-en

Max time kernel

93s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\84dd4b7747d83f5cd5357dbec4d328f0cfe5b9b47652ad099cbceee24df58a66.exe"

Signatures

detect oss ak

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

UPX packed file

upx
Description Indicator Process Target
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Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\84dd4b7747d83f5cd5357dbec4d328f0cfe5b9b47652ad099cbceee24df58a66.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\84dd4b7747d83f5cd5357dbec4d328f0cfe5b9b47652ad099cbceee24df58a66.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000_Classes\Local Settings C:\Users\Admin\AppData\Local\Temp\84dd4b7747d83f5cd5357dbec4d328f0cfe5b9b47652ad099cbceee24df58a66.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\84dd4b7747d83f5cd5357dbec4d328f0cfe5b9b47652ad099cbceee24df58a66.exe

"C:\Users\Admin\AppData\Local\Temp\84dd4b7747d83f5cd5357dbec4d328f0cfe5b9b47652ad099cbceee24df58a66.exe"

C:\Windows\system32\OpenWith.exe

C:\Windows\system32\OpenWith.exe -Embedding

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.xlinyi.cn udp
US 8.8.8.8:53 vv.video.qq.com udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
HK 129.226.102.98:443 vv.video.qq.com tcp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 98.102.226.129.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 yz.xlinyi.cn udp
CN 106.53.151.139:4625 yz.xlinyi.cn tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 91.90.14.23.in-addr.arpa udp

Files

memory/4324-0-0x000000000092A000-0x0000000000D5A000-memory.dmp

memory/4324-8-0x0000000000400000-0x0000000000F5E000-memory.dmp

memory/4324-7-0x00000000030C0000-0x00000000030C1000-memory.dmp

memory/4324-6-0x00000000030B0000-0x00000000030B1000-memory.dmp

memory/4324-5-0x00000000030A0000-0x00000000030A1000-memory.dmp

memory/4324-4-0x0000000003090000-0x0000000003091000-memory.dmp

memory/4324-3-0x0000000003080000-0x0000000003081000-memory.dmp

memory/4324-2-0x00000000016F0000-0x00000000016F1000-memory.dmp

memory/4324-1-0x00000000016E0000-0x00000000016E1000-memory.dmp

memory/4324-9-0x0000000010000000-0x000000001003E000-memory.dmp

memory/4324-43-0x0000000010000000-0x000000001003E000-memory.dmp

memory/4324-49-0x0000000010000000-0x000000001003E000-memory.dmp

memory/4324-51-0x0000000010000000-0x000000001003E000-memory.dmp

memory/4324-47-0x0000000010000000-0x000000001003E000-memory.dmp

memory/4324-45-0x0000000010000000-0x000000001003E000-memory.dmp

memory/4324-39-0x0000000010000000-0x000000001003E000-memory.dmp

memory/4324-37-0x0000000010000000-0x000000001003E000-memory.dmp

memory/4324-35-0x0000000010000000-0x000000001003E000-memory.dmp

memory/4324-33-0x0000000010000000-0x000000001003E000-memory.dmp

memory/4324-31-0x0000000010000000-0x000000001003E000-memory.dmp

memory/4324-29-0x0000000010000000-0x000000001003E000-memory.dmp

memory/4324-27-0x0000000010000000-0x000000001003E000-memory.dmp

memory/4324-25-0x0000000010000000-0x000000001003E000-memory.dmp

memory/4324-23-0x0000000010000000-0x000000001003E000-memory.dmp

memory/4324-22-0x0000000010000000-0x000000001003E000-memory.dmp

memory/4324-19-0x0000000010000000-0x000000001003E000-memory.dmp

memory/4324-17-0x0000000010000000-0x000000001003E000-memory.dmp

memory/4324-16-0x0000000010000000-0x000000001003E000-memory.dmp

memory/4324-13-0x0000000010000000-0x000000001003E000-memory.dmp

memory/4324-10-0x0000000010000000-0x000000001003E000-memory.dmp

memory/4324-11-0x0000000010000000-0x000000001003E000-memory.dmp

memory/4324-41-0x0000000010000000-0x000000001003E000-memory.dmp

memory/4324-52-0x000000000092A000-0x0000000000D5A000-memory.dmp