Malware Analysis Report

2025-08-10 22:18

Sample ID 210615-zsaqsha5cx
Target a277592663b728f42b49908109ec49647e5bff6f61f43527012725becc713c26
SHA256 a277592663b728f42b49908109ec49647e5bff6f61f43527012725becc713c26
Tags
dridex 40112 botnet loader
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 Overview

score
10/10

SHA256

a277592663b728f42b49908109ec49647e5bff6f61f43527012725becc713c26

Threat Level: Known bad

The file a277592663b728f42b49908109ec49647e5bff6f61f43527012725becc713c26 was found to be: Known bad.

Malicious Activity Summary

dridex 40112 botnet loader

Dridex

Dridex Loader

Program crash

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2021-06-15 11:05

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-06-15 11:05

Reported

2021-06-15 11:08

Platform

win10v20210408

Max time kernel

23s

Max time network

136s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\a277592663b728f42b49908109ec49647e5bff6f61f43527012725becc713c26.dll,#1

Signatures

Dridex

botnet dridex

Dridex Loader

botnet loader
Description Indicator Process Target
N/A N/A N/A N/A

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeRestorePrivilege N/A C:\Windows\SysWOW64\WerFault.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\SysWOW64\WerFault.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WerFault.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4660 wrote to memory of 4752 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4660 wrote to memory of 4752 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4660 wrote to memory of 4752 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\a277592663b728f42b49908109ec49647e5bff6f61f43527012725becc713c26.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\a277592663b728f42b49908109ec49647e5bff6f61f43527012725becc713c26.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4752 -s 680

Network

N/A

Files

memory/4752-114-0x0000000000000000-mapping.dmp

memory/4752-115-0x0000000073C30000-0x0000000073C60000-memory.dmp

memory/4752-117-0x0000000000FC0000-0x000000000110A000-memory.dmp