Malware Analysis Report

2025-01-02 14:46

Sample ID 240824-p8w92a1drb
Target c31aa437e446542d7c10994d4817b630N.exe
SHA256 33b250020e9c3cde0255c679760f57ce070b82f63033502d73e4b5beb662c234
Tags
andromeda backdoor botnet discovery persistence
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

33b250020e9c3cde0255c679760f57ce070b82f63033502d73e4b5beb662c234

Threat Level: Known bad

The file c31aa437e446542d7c10994d4817b630N.exe was found to be: Known bad.

Malicious Activity Summary

andromeda backdoor botnet discovery persistence

Detects Andromeda payload.

Andromeda, Gamarue

Adds policy Run key to start application

Blocklisted process makes network request

Suspicious use of SetThreadContext

Drops file in Program Files directory

Unsigned PE

Program crash

System Location Discovery: System Language Discovery

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-24 13:00

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-24 13:00

Reported

2024-08-24 13:02

Platform

win7-20240704-en

Max time kernel

112s

Max time network

17s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe"

Signatures

Andromeda, Gamarue

botnet backdoor andromeda

Detects Andromeda payload.

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1656 set thread context of 1888 N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\syswow64\msiexec.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\syswow64\msiexec.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1656 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe
PID 1656 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe
PID 1656 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe
PID 1656 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe
PID 1656 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe
PID 1656 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe
PID 1656 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe
PID 1888 wrote to memory of 2288 N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe C:\Windows\syswow64\msiexec.exe
PID 1888 wrote to memory of 2288 N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe C:\Windows\syswow64\msiexec.exe
PID 1888 wrote to memory of 2288 N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe C:\Windows\syswow64\msiexec.exe
PID 1888 wrote to memory of 2288 N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe C:\Windows\syswow64\msiexec.exe
PID 1888 wrote to memory of 2288 N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe C:\Windows\syswow64\msiexec.exe
PID 1888 wrote to memory of 2288 N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe C:\Windows\syswow64\msiexec.exe
PID 1888 wrote to memory of 2288 N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe C:\Windows\syswow64\msiexec.exe
PID 2288 wrote to memory of 2200 N/A C:\Windows\syswow64\msiexec.exe C:\Windows\SysWOW64\WerFault.exe
PID 2288 wrote to memory of 2200 N/A C:\Windows\syswow64\msiexec.exe C:\Windows\SysWOW64\WerFault.exe
PID 2288 wrote to memory of 2200 N/A C:\Windows\syswow64\msiexec.exe C:\Windows\SysWOW64\WerFault.exe
PID 2288 wrote to memory of 2200 N/A C:\Windows\syswow64\msiexec.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe

"C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe"

C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe

"C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe"

C:\Windows\syswow64\msiexec.exe

C:\Windows\syswow64\msiexec.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2288 -s 268

Network

N/A

Files

memory/1888-0-0x0000000000400000-0x0000000000409000-memory.dmp

memory/1888-6-0x0000000000400000-0x0000000000409000-memory.dmp

memory/1888-4-0x0000000000400000-0x0000000000409000-memory.dmp

memory/1888-2-0x0000000000400000-0x0000000000409000-memory.dmp

memory/1888-8-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2288-11-0x00000000001B0000-0x00000000001C4000-memory.dmp

memory/2288-12-0x00000000001B0000-0x00000000001C4000-memory.dmp

memory/2288-14-0x00000000001B0000-0x00000000001C4000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-24 13:00

Reported

2024-08-24 13:02

Platform

win10v2004-20240802-en

Max time kernel

111s

Max time network

107s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe"

Signatures

Andromeda, Gamarue

botnet backdoor andromeda

Detects Andromeda payload.

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

Adds policy Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run C:\Windows\SysWOW64\msiexec.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\18774 = "C:\\PROGRA~3\\LOCALS~1\\Temp\\ccoxxu.cmd" C:\Windows\SysWOW64\msiexec.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3560 set thread context of 4512 N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe

Drops file in Program Files directory

Description Indicator Process Target
File created C:\PROGRA~3\LOCALS~1\Temp\ccoxxu.cmd C:\Windows\SysWOW64\msiexec.exe 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\msiexec.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3560 wrote to memory of 4512 N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe
PID 3560 wrote to memory of 4512 N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe
PID 3560 wrote to memory of 4512 N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe
PID 3560 wrote to memory of 4512 N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe
PID 3560 wrote to memory of 4512 N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe
PID 3560 wrote to memory of 4512 N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe
PID 4512 wrote to memory of 3484 N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe C:\Windows\SysWOW64\msiexec.exe
PID 4512 wrote to memory of 3484 N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe C:\Windows\SysWOW64\msiexec.exe
PID 4512 wrote to memory of 3484 N/A C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe C:\Windows\SysWOW64\msiexec.exe

Processes

C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe

"C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe"

C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe

"C:\Users\Admin\AppData\Local\Temp\c31aa437e446542d7c10994d4817b630N.exe"

C:\Windows\SysWOW64\msiexec.exe

C:\Windows\syswow64\msiexec.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 www.update.microsoft.com udp
US 20.72.235.82:80 www.update.microsoft.com tcp
US 8.8.4.4:53 restlesz.su udp
US 8.8.8.8:53 82.235.72.20.in-addr.arpa udp
US 8.8.8.8:53 4.4.8.8.in-addr.arpa udp
US 8.8.8.8:53 restlesz.su udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 184.105.192.2:80 restlesz.su tcp
US 8.8.4.4:53 restlesz.su udp
US 8.8.8.8:53 2.192.105.184.in-addr.arpa udp
US 184.105.192.2:80 restlesz.su tcp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.4.4:53 restlesz.su udp
US 184.105.192.2:80 restlesz.su tcp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.4.4:53 restlesz.su udp
US 184.105.192.2:80 restlesz.su tcp
US 8.8.4.4:53 restlesz.su udp
US 184.105.192.2:80 restlesz.su tcp
US 8.8.4.4:53 devicesta.ru udp
US 44.221.84.105:80 devicesta.ru tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 105.84.221.44.in-addr.arpa udp
US 8.8.4.4:53 restlesz.su udp
US 184.105.192.2:80 restlesz.su tcp
US 8.8.4.4:53 restlesz.su udp
US 184.105.192.2:80 restlesz.su tcp
US 8.8.4.4:53 restlesz.su udp
US 184.105.192.2:80 restlesz.su tcp
US 8.8.4.4:53 restlesz.su udp
US 184.105.192.2:80 restlesz.su tcp
US 8.8.4.4:53 restlesz.su udp
US 184.105.192.2:80 restlesz.su tcp
US 8.8.4.4:53 devicesta.ru udp
US 44.221.84.105:80 devicesta.ru tcp
US 8.8.8.8:53 13.227.111.52.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 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 43.58.199.20.in-addr.arpa udp

Files

memory/4512-0-0x0000000000400000-0x0000000000409000-memory.dmp

memory/4512-2-0x0000000000400000-0x0000000000409000-memory.dmp

memory/3484-4-0x0000000000FB0000-0x0000000000FC2000-memory.dmp

memory/3484-9-0x0000000000FB0000-0x0000000000FC2000-memory.dmp

memory/3484-7-0x0000000000FB0000-0x0000000000FC2000-memory.dmp

memory/3484-10-0x0000000000B10000-0x0000000000B15000-memory.dmp

memory/3484-12-0x0000000000B10000-0x0000000000B15000-memory.dmp

memory/3484-16-0x0000000000B10000-0x0000000000B15000-memory.dmp