Malware Analysis Report

2024-10-18 22:50

Sample ID 221027-hcksssbcd9
Target 53ebd97f9bf818a3641f51fc3bc0aa2c593b579c492eebf3b2f0df918c160f55_unpacked
SHA256 53ebd97f9bf818a3641f51fc3bc0aa2c593b579c492eebf3b2f0df918c160f55
Tags
zloader kev 08/02 botnet trojan
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

53ebd97f9bf818a3641f51fc3bc0aa2c593b579c492eebf3b2f0df918c160f55

Threat Level: Known bad

The file 53ebd97f9bf818a3641f51fc3bc0aa2c593b579c492eebf3b2f0df918c160f55_unpacked was found to be: Known bad.

Malicious Activity Summary

zloader kev 08/02 botnet trojan

Zloader, Terdot, DELoader, ZeusSphinx

Zloader family

Suspicious use of SetThreadContext

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2022-10-27 06:35

Signatures

Zloader family

zloader

Analysis: behavioral1

Detonation Overview

Submitted

2022-10-27 06:35

Reported

2022-10-27 06:52

Platform

win7-20220901-en

Max time kernel

434s

Max time network

439s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\53ebd97f9bf818a3641f51fc3bc0aa2c593b579c492eebf3b2f0df918c160f55_unpacked.dll,#1

Signatures

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1204 wrote to memory of 1344 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1204 wrote to memory of 1344 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1204 wrote to memory of 1344 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1204 wrote to memory of 1344 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1204 wrote to memory of 1344 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1204 wrote to memory of 1344 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1204 wrote to memory of 1344 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\53ebd97f9bf818a3641f51fc3bc0aa2c593b579c492eebf3b2f0df918c160f55_unpacked.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\53ebd97f9bf818a3641f51fc3bc0aa2c593b579c492eebf3b2f0df918c160f55_unpacked.dll,#1

Network

N/A

Files

memory/1344-54-0x0000000000000000-mapping.dmp

memory/1344-55-0x0000000074DE1000-0x0000000074DE3000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-10-27 06:35

Reported

2022-10-27 06:52

Platform

win10v2004-20220812-en

Max time kernel

482s

Max time network

485s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\53ebd97f9bf818a3641f51fc3bc0aa2c593b579c492eebf3b2f0df918c160f55_unpacked.dll,#1

Signatures

Zloader, Terdot, DELoader, ZeusSphinx

trojan botnet zloader

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 5020 set thread context of 4892 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\msiexec.exe

Program crash

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

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\53ebd97f9bf818a3641f51fc3bc0aa2c593b579c492eebf3b2f0df918c160f55_unpacked.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\53ebd97f9bf818a3641f51fc3bc0aa2c593b579c492eebf3b2f0df918c160f55_unpacked.dll,#1

C:\Windows\SysWOW64\msiexec.exe

msiexec.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4892 -ip 4892

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4892 -s 576

Network

Country Destination Domain Proto
US 93.184.220.29:80 tcp
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp

Files

memory/5020-132-0x0000000000000000-mapping.dmp

memory/4892-133-0x0000000000000000-mapping.dmp

memory/4892-134-0x0000000000630000-0x0000000000659000-memory.dmp

memory/4892-135-0x0000000000630000-0x0000000000659000-memory.dmp