Malware Analysis Report

2024-10-18 22:51

Sample ID 221027-hchy7sbcd4
Target 0d533321292f6854d7f9705a738d58ee5941c93b52674681083ec5c21a987ab1_unpacked
SHA256 d010b0b5bff25d4cc9b65d8f24e4ae5b596804d4c60c506e993d312323a881bb
Tags
zloader botnet persistence trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

d010b0b5bff25d4cc9b65d8f24e4ae5b596804d4c60c506e993d312323a881bb

Threat Level: Known bad

The file 0d533321292f6854d7f9705a738d58ee5941c93b52674681083ec5c21a987ab1_unpacked was found to be: Known bad.

Malicious Activity Summary

zloader botnet persistence trojan

Zloader, Terdot, DELoader, ZeusSphinx

Zloader family

Blocklisted process makes network request

Adds Run key to start application

Suspicious use of SetThreadContext

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-10-27 06:35

Signatures

Zloader family

zloader

Analysis: behavioral2

Detonation Overview

Submitted

2022-10-27 06:35

Reported

2022-10-27 06:46

Platform

win10v2004-20220901-en

Max time kernel

496s

Max time network

500s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\0d533321292f6854d7f9705a738d58ee5941c93b52674681083ec5c21a987ab1_unpacked.dll

Signatures

Zloader, Terdot, DELoader, ZeusSphinx

trojan botnet zloader

Adds Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run C:\Windows\SysWOW64\msiexec.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Budiah = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Behu\\yhbyfo.dll,DllRegisterServer" C:\Windows\SysWOW64\msiexec.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1296 set thread context of 5044 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\msiexec.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeSecurityPrivilege N/A C:\Windows\SysWOW64\msiexec.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\SysWOW64\msiexec.exe N/A

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\0d533321292f6854d7f9705a738d58ee5941c93b52674681083ec5c21a987ab1_unpacked.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\0d533321292f6854d7f9705a738d58ee5941c93b52674681083ec5c21a987ab1_unpacked.dll

C:\Windows\SysWOW64\msiexec.exe

msiexec.exe

Network

Country Destination Domain Proto
US 209.197.3.8:80 tcp
NL 104.80.225.205:443 tcp
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp
US 8.8.8.8:53 axelerode.club udp
BE 35.205.61.67:443 axelerode.club tcp
BE 35.205.61.67:443 axelerode.club tcp
BE 35.205.61.67:443 axelerode.club tcp
BE 35.205.61.67:443 axelerode.club tcp
BE 35.205.61.67:443 axelerode.club tcp
US 8.8.8.8:53 axelerode.host udp
US 8.8.8.8:53 axelerode.host udp
US 8.8.8.8:53 axelerode.host udp
BE 35.205.61.67:443 axelerode.club tcp
BE 35.205.61.67:443 axelerode.club tcp
BE 35.205.61.67:443 axelerode.club tcp
BE 35.205.61.67:443 axelerode.club tcp
BE 35.205.61.67:443 axelerode.club tcp
US 8.8.8.8:53 axelerode.host udp
US 8.8.8.8:53 axelerode.host udp

Files

memory/1296-132-0x0000000000000000-mapping.dmp

memory/5044-133-0x0000000000000000-mapping.dmp

memory/5044-134-0x00000000005C0000-0x00000000005EC000-memory.dmp

memory/5044-135-0x00000000005C0000-0x00000000005EC000-memory.dmp

memory/5044-136-0x00000000005C0000-0x00000000005EC000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2022-10-27 06:35

Reported

2022-10-27 06:46

Platform

win7-20220812-en

Max time kernel

545s

Max time network

547s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\0d533321292f6854d7f9705a738d58ee5941c93b52674681083ec5c21a987ab1_unpacked.dll

Signatures

Zloader, Terdot, DELoader, ZeusSphinx

trojan botnet zloader

Adds Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run C:\Windows\SysWOW64\msiexec.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\Fydueh = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Hohuo\\fegud.dll,DllRegisterServer" C:\Windows\SysWOW64\msiexec.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1812 set thread context of 1948 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\msiexec.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeSecurityPrivilege N/A C:\Windows\SysWOW64\msiexec.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\SysWOW64\msiexec.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 364 wrote to memory of 1812 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 364 wrote to memory of 1812 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 364 wrote to memory of 1812 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 364 wrote to memory of 1812 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 364 wrote to memory of 1812 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 364 wrote to memory of 1812 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 364 wrote to memory of 1812 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1812 wrote to memory of 1948 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\msiexec.exe
PID 1812 wrote to memory of 1948 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\msiexec.exe
PID 1812 wrote to memory of 1948 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\msiexec.exe
PID 1812 wrote to memory of 1948 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\msiexec.exe
PID 1812 wrote to memory of 1948 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\msiexec.exe
PID 1812 wrote to memory of 1948 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\msiexec.exe
PID 1812 wrote to memory of 1948 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\msiexec.exe
PID 1812 wrote to memory of 1948 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\msiexec.exe
PID 1812 wrote to memory of 1948 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\msiexec.exe

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\0d533321292f6854d7f9705a738d58ee5941c93b52674681083ec5c21a987ab1_unpacked.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\0d533321292f6854d7f9705a738d58ee5941c93b52674681083ec5c21a987ab1_unpacked.dll

C:\Windows\SysWOW64\msiexec.exe

msiexec.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 axelerode.club udp
BE 35.205.61.67:443 axelerode.club tcp
BE 35.205.61.67:443 axelerode.club tcp
BE 35.205.61.67:443 axelerode.club tcp
BE 35.205.61.67:443 axelerode.club tcp
BE 35.205.61.67:443 axelerode.club tcp
US 8.8.8.8:53 axelerode.host udp
BE 35.205.61.67:443 axelerode.club tcp
BE 35.205.61.67:443 axelerode.club tcp
BE 35.205.61.67:443 axelerode.club tcp
BE 35.205.61.67:443 axelerode.club tcp
BE 35.205.61.67:443 axelerode.club tcp

Files

memory/364-54-0x000007FEFBD91000-0x000007FEFBD93000-memory.dmp

memory/1812-55-0x0000000000000000-mapping.dmp

memory/1812-56-0x0000000076681000-0x0000000076683000-memory.dmp

memory/1948-57-0x0000000000090000-0x00000000000BC000-memory.dmp

memory/1948-59-0x0000000000090000-0x00000000000BC000-memory.dmp

memory/1948-60-0x0000000000000000-mapping.dmp

memory/1948-62-0x0000000000090000-0x00000000000BC000-memory.dmp

memory/1948-63-0x0000000000090000-0x00000000000BC000-memory.dmp