Malware Analysis Report

2025-01-18 15:45

Sample ID 240825-262g7asejk
Target 74ee7173b230abbc327c01716adcf360N.exe
SHA256 6a0a794e29c950cd6e603553dd5e5e2d57430f03f241106329462a53c69d9db7
Tags
dridex 111 botnet discovery loader
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

6a0a794e29c950cd6e603553dd5e5e2d57430f03f241106329462a53c69d9db7

Threat Level: Known bad

The file 74ee7173b230abbc327c01716adcf360N.exe was found to be: Known bad.

Malicious Activity Summary

dridex 111 botnet discovery loader

Dridex

Dridex Loader

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-25 23:12

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-25 23:12

Reported

2024-08-25 23:14

Platform

win7-20240729-en

Max time kernel

58s

Max time network

17s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\74ee7173b230abbc327c01716adcf360N.dll,#1

Signatures

Dridex

botnet dridex

Dridex Loader

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2116 wrote to memory of 2348 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2116 wrote to memory of 2348 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2116 wrote to memory of 2348 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2116 wrote to memory of 2348 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2116 wrote to memory of 2348 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2116 wrote to memory of 2348 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2116 wrote to memory of 2348 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\74ee7173b230abbc327c01716adcf360N.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\74ee7173b230abbc327c01716adcf360N.dll,#1

Network

N/A

Files

memory/2348-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

memory/2348-0-0x0000000074A90000-0x0000000074ABE000-memory.dmp

memory/2348-2-0x0000000074A90000-0x0000000074ABE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-25 23:12

Reported

2024-08-25 23:14

Platform

win10v2004-20240802-en

Max time kernel

53s

Max time network

121s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\74ee7173b230abbc327c01716adcf360N.dll,#1

Signatures

Dridex

botnet dridex

Dridex Loader

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 5064 wrote to memory of 3708 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 5064 wrote to memory of 3708 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 5064 wrote to memory of 3708 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\74ee7173b230abbc327c01716adcf360N.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\74ee7173b230abbc327c01716adcf360N.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.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 8.8.8.8:53 10.27.171.150.in-addr.arpa udp

Files

memory/3708-0-0x0000000000BE0000-0x0000000000BE6000-memory.dmp

memory/3708-1-0x0000000074960000-0x000000007498E000-memory.dmp

memory/3708-3-0x0000000000BE0000-0x0000000000BE6000-memory.dmp

memory/3708-2-0x0000000074960000-0x000000007498E000-memory.dmp