Malware Analysis Report

2024-07-28 11:03

Sample ID 240528-xrvzmsgc8y
Target 7c7c0454c36dc592c743ac87efa3986200e508ab5dd8d84e94cb59418df12036
SHA256 7c7c0454c36dc592c743ac87efa3986200e508ab5dd8d84e94cb59418df12036
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

7c7c0454c36dc592c743ac87efa3986200e508ab5dd8d84e94cb59418df12036

Threat Level: Likely malicious

The file 7c7c0454c36dc592c743ac87efa3986200e508ab5dd8d84e94cb59418df12036 was found to be: Likely malicious.

Malicious Activity Summary

oss_ak bootkit persistence upx

detect oss ak

Loads dropped DLL

UPX packed file

Writes to the Master Boot Record (MBR)

Unsigned PE

Suspicious use of SetWindowsHookEx

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Pre-OS Boot
T1542
Bootkit
T1542.003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Pre-OS Boot
T1542
Bootkit
T1542.003
Credential Access
TA0006
Discovery
TA0007
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-05-28 19:05

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

2024-05-28 19:05

Reported

2024-05-28 19:08

Platform

win7-20240221-en

Max time kernel

121s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7c7c0454c36dc592c743ac87efa3986200e508ab5dd8d84e94cb59418df12036.exe"

Signatures

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\7c7c0454c36dc592c743ac87efa3986200e508ab5dd8d84e94cb59418df12036.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
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
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
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
N/A N/A N/A N/A
N/A N/A N/A N/A

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\7c7c0454c36dc592c743ac87efa3986200e508ab5dd8d84e94cb59418df12036.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\7c7c0454c36dc592c743ac87efa3986200e508ab5dd8d84e94cb59418df12036.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\7c7c0454c36dc592c743ac87efa3986200e508ab5dd8d84e94cb59418df12036.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\7c7c0454c36dc592c743ac87efa3986200e508ab5dd8d84e94cb59418df12036.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\7c7c0454c36dc592c743ac87efa3986200e508ab5dd8d84e94cb59418df12036.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\7c7c0454c36dc592c743ac87efa3986200e508ab5dd8d84e94cb59418df12036.exe

"C:\Users\Admin\AppData\Local\Temp\7c7c0454c36dc592c743ac87efa3986200e508ab5dd8d84e94cb59418df12036.exe"

Network

Country Destination Domain Proto
CN 222.186.171.249:89 tcp

Files

\Users\Admin\AppData\Local\Temp\E2EECore.2.7.2.dll

MD5 8b6c94bbdbfb213e94a5dcb4fac28ce3
SHA1 b56102ca4f03556f387f8b30e2b404efabe0cb65
SHA256 982a177924762f270b36fe34c7d6847392b48ae53151dc2011078dceef487a53
SHA512 9d6d63b5d8cf7a978d7e91126d7a343c2f7acd00022da9d692f63e50835fdd84a59a93328564f10622f2b1f6adfd7febdd98b8ddb294d0754ed45cc9c165d25a

memory/2420-5-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2420-16-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2420-14-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2420-12-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2420-10-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2420-8-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2420-6-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2420-24-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2420-4-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2420-42-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2420-36-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2420-47-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2420-44-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2420-40-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2420-38-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2420-34-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2420-32-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2420-30-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2420-28-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2420-26-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2420-22-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2420-20-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2420-18-0x0000000010000000-0x000000001003E000-memory.dmp

memory/2420-48-0x0000000010000000-0x000000001003E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-28 19:05

Reported

2024-05-28 19:08

Platform

win10v2004-20240426-en

Max time kernel

149s

Max time network

157s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7c7c0454c36dc592c743ac87efa3986200e508ab5dd8d84e94cb59418df12036.exe"

Signatures

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\7c7c0454c36dc592c743ac87efa3986200e508ab5dd8d84e94cb59418df12036.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
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
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
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
N/A N/A N/A N/A
N/A N/A N/A N/A

Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\7c7c0454c36dc592c743ac87efa3986200e508ab5dd8d84e94cb59418df12036.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\7c7c0454c36dc592c743ac87efa3986200e508ab5dd8d84e94cb59418df12036.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\7c7c0454c36dc592c743ac87efa3986200e508ab5dd8d84e94cb59418df12036.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\7c7c0454c36dc592c743ac87efa3986200e508ab5dd8d84e94cb59418df12036.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\7c7c0454c36dc592c743ac87efa3986200e508ab5dd8d84e94cb59418df12036.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\7c7c0454c36dc592c743ac87efa3986200e508ab5dd8d84e94cb59418df12036.exe

"C:\Users\Admin\AppData\Local\Temp\7c7c0454c36dc592c743ac87efa3986200e508ab5dd8d84e94cb59418df12036.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
CN 222.186.171.249:89 tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 123.10.44.20.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\E2EECore.2.7.2.dll

MD5 8b6c94bbdbfb213e94a5dcb4fac28ce3
SHA1 b56102ca4f03556f387f8b30e2b404efabe0cb65
SHA256 982a177924762f270b36fe34c7d6847392b48ae53151dc2011078dceef487a53
SHA512 9d6d63b5d8cf7a978d7e91126d7a343c2f7acd00022da9d692f63e50835fdd84a59a93328564f10622f2b1f6adfd7febdd98b8ddb294d0754ed45cc9c165d25a

memory/456-5-0x0000000010000000-0x000000001003E000-memory.dmp

memory/456-45-0x0000000010000000-0x000000001003E000-memory.dmp

memory/456-57-0x0000000010000000-0x000000001003E000-memory.dmp

memory/456-56-0x0000000010000000-0x000000001003E000-memory.dmp

memory/456-52-0x0000000010000000-0x000000001003E000-memory.dmp

memory/456-50-0x0000000010000000-0x000000001003E000-memory.dmp

memory/456-46-0x0000000010000000-0x000000001003E000-memory.dmp

memory/456-41-0x0000000010000000-0x000000001003E000-memory.dmp

memory/456-39-0x0000000010000000-0x000000001003E000-memory.dmp

memory/456-37-0x0000000010000000-0x000000001003E000-memory.dmp

memory/456-33-0x0000000010000000-0x000000001003E000-memory.dmp

memory/456-31-0x0000000010000000-0x000000001003E000-memory.dmp

memory/456-26-0x0000000010000000-0x000000001003E000-memory.dmp

memory/456-23-0x0000000010000000-0x000000001003E000-memory.dmp

memory/456-19-0x0000000010000000-0x000000001003E000-memory.dmp

memory/456-17-0x0000000010000000-0x000000001003E000-memory.dmp

memory/456-15-0x0000000010000000-0x000000001003E000-memory.dmp

memory/456-13-0x0000000010000000-0x000000001003E000-memory.dmp

memory/456-11-0x0000000010000000-0x000000001003E000-memory.dmp

memory/456-9-0x0000000010000000-0x000000001003E000-memory.dmp

memory/456-7-0x0000000010000000-0x000000001003E000-memory.dmp

memory/456-6-0x0000000010000000-0x000000001003E000-memory.dmp

memory/456-28-0x0000000010000000-0x000000001003E000-memory.dmp

memory/456-58-0x0000000077434000-0x0000000077435000-memory.dmp

memory/456-59-0x0000000010000000-0x000000001003E000-memory.dmp