Malware Analysis Report

2024-09-23 13:18

Sample ID 240613-br9bdasfmr
Target 79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd.exe
SHA256 79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd
Tags
bootkit persistence
score
6/10

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
6/10

SHA256

79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd

Threat Level: Shows suspicious behavior

The file 79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd.exe was found to be: Shows suspicious behavior.

Malicious Activity Summary

bootkit persistence

Writes to the Master Boot Record (MBR)

Loads dropped DLL

Suspicious use of SetWindowsHookEx

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-13 01:23

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-13 01:23

Reported

2024-06-13 01:26

Platform

win7-20231129-en

Max time kernel

121s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd.exe"

Signatures

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd.exe

"C:\Users\Admin\AppData\Local\Temp\79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 master.etl.desktop.qq.com udp
US 8.8.8.8:53 c.gj.qq.com udp
US 8.8.8.8:53 c.gj.qq.com udp
CN 157.255.4.39:443 master.etl.desktop.qq.com tcp
HK 43.135.106.117:80 c.gj.qq.com tcp
HK 43.135.106.117:80 c.gj.qq.com tcp
CN 157.255.4.39:443 master.etl.desktop.qq.com tcp
CN 157.255.4.39:443 master.etl.desktop.qq.com tcp
CN 157.255.4.39:443 master.etl.desktop.qq.com tcp

Files

\Users\Admin\AppData\Local\Temp\TencentDownload\~f760445\QQPCDownload.dll

MD5 45203b800253aed1a31a18257da24618
SHA1 4debc4740d0c53f61ed3f18ecabb3dd0c9f3c3e1
SHA256 af60814b99ebf49e0f9b6f8d2e0e26b593b40302b20714eb74e0c2489c0aaa77
SHA512 c8dbae680a607f26e78cef7a1d047bef4f016212daf5009bd90f2ff3573a447b426d39fbafa2c980bdeed13801c60138e1a0785c65bcfc463d5dc509b751cfdb

memory/2180-5-0x0000000000570000-0x0000000000571000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 01:23

Reported

2024-06-13 01:26

Platform

win10v2004-20240611-en

Max time kernel

83s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd.exe"

Signatures

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd.exe

"C:\Users\Admin\AppData\Local\Temp\79cdda55f74f86b846c7705f503ace528ba457a49824be2cbcd03f4016d5d0cd.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 master.etl.desktop.qq.com udp
US 8.8.8.8:53 c.gj.qq.com udp
CN 157.255.4.39:443 master.etl.desktop.qq.com tcp
HK 43.135.106.184:80 c.gj.qq.com tcp
HK 43.135.106.184:80 c.gj.qq.com tcp
US 8.8.8.8:53 91.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 184.106.135.43.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 20.189.173.13:443 tcp
US 8.8.8.8:53 57.234.16.2.in-addr.arpa udp
CN 157.255.4.39:443 master.etl.desktop.qq.com tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
BE 2.17.107.105:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 105.107.17.2.in-addr.arpa udp
CN 157.255.4.39:443 master.etl.desktop.qq.com tcp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
CN 157.255.4.39:443 master.etl.desktop.qq.com tcp

Files

C:\Users\Admin\AppData\Local\Temp\TencentDownload\~e57fc23\QQPCDownload.dll

MD5 45203b800253aed1a31a18257da24618
SHA1 4debc4740d0c53f61ed3f18ecabb3dd0c9f3c3e1
SHA256 af60814b99ebf49e0f9b6f8d2e0e26b593b40302b20714eb74e0c2489c0aaa77
SHA512 c8dbae680a607f26e78cef7a1d047bef4f016212daf5009bd90f2ff3573a447b426d39fbafa2c980bdeed13801c60138e1a0785c65bcfc463d5dc509b751cfdb