Malware Analysis Report

2025-01-02 14:47

Sample ID 240903-yrl76svhrq
Target 2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4
SHA256 2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4
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

2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4

Threat Level: Known bad

The file 2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4 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

Program crash

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-03 20:01

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-03 20:01

Reported

2024-09-03 20:03

Platform

win7-20240903-en

Max time kernel

142s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.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

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\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\syswow64\msiexec.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2708 wrote to memory of 2400 N/A C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe
PID 2708 wrote to memory of 2400 N/A C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe
PID 2708 wrote to memory of 2400 N/A C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe
PID 2708 wrote to memory of 2400 N/A C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe
PID 2708 wrote to memory of 2400 N/A C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe
PID 2708 wrote to memory of 2400 N/A C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe
PID 2708 wrote to memory of 2400 N/A C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe
PID 2400 wrote to memory of 2712 N/A C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe C:\Windows\syswow64\msiexec.exe
PID 2400 wrote to memory of 2712 N/A C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe C:\Windows\syswow64\msiexec.exe
PID 2400 wrote to memory of 2712 N/A C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe C:\Windows\syswow64\msiexec.exe
PID 2400 wrote to memory of 2712 N/A C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe C:\Windows\syswow64\msiexec.exe
PID 2400 wrote to memory of 2712 N/A C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe C:\Windows\syswow64\msiexec.exe
PID 2400 wrote to memory of 2712 N/A C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe C:\Windows\syswow64\msiexec.exe
PID 2400 wrote to memory of 2712 N/A C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe C:\Windows\syswow64\msiexec.exe
PID 2712 wrote to memory of 1040 N/A C:\Windows\syswow64\msiexec.exe C:\Windows\SysWOW64\WerFault.exe
PID 2712 wrote to memory of 1040 N/A C:\Windows\syswow64\msiexec.exe C:\Windows\SysWOW64\WerFault.exe
PID 2712 wrote to memory of 1040 N/A C:\Windows\syswow64\msiexec.exe C:\Windows\SysWOW64\WerFault.exe
PID 2712 wrote to memory of 1040 N/A C:\Windows\syswow64\msiexec.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe

"C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe"

C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe

"C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe"

C:\Windows\syswow64\msiexec.exe

C:\Windows\syswow64\msiexec.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2712 -s 268

Network

N/A

Files

memory/2400-0-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2400-6-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2400-9-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2400-4-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2400-2-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2712-12-0x00000000008C0000-0x00000000008D4000-memory.dmp

memory/2712-13-0x00000000008C0000-0x00000000008D4000-memory.dmp

memory/2712-15-0x00000000008C0000-0x00000000008D4000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-03 20:01

Reported

2024-09-03 20:03

Platform

win10v2004-20240802-en

Max time kernel

142s

Max time network

136s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.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\3665 = "C:\\PROGRA~3\\LOCALS~1\\Temp\\cclxwox.bat" C:\Windows\SysWOW64\msiexec.exe N/A

Blocklisted process makes network request

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

Drops file in Program Files directory

Description Indicator Process Target
File created C:\PROGRA~3\LOCALS~1\Temp\cclxwox.bat 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:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\msiexec.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4512 wrote to memory of 3540 N/A C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe
PID 4512 wrote to memory of 3540 N/A C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe
PID 4512 wrote to memory of 3540 N/A C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe
PID 4512 wrote to memory of 3540 N/A C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe
PID 4512 wrote to memory of 3540 N/A C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe
PID 4512 wrote to memory of 3540 N/A C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe
PID 3540 wrote to memory of 1868 N/A C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe C:\Windows\SysWOW64\msiexec.exe
PID 3540 wrote to memory of 1868 N/A C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe C:\Windows\SysWOW64\msiexec.exe
PID 3540 wrote to memory of 1868 N/A C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe C:\Windows\SysWOW64\msiexec.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe

"C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe"

C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.exe

"C:\Users\Admin\AppData\Local\Temp\2bfc823922528e0c2d6706c39c3a9770fdd1285cd15c648e026105aad62cf8a4.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 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 43.56.20.217.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 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 8.8.8.8:53 4.4.8.8.in-addr.arpa udp
US 8.8.8.8:53 82.235.72.20.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 8.8.8.8:53 2.192.105.184.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 devicesta.ru udp
US 44.221.84.105:80 devicesta.ru tcp
US 8.8.8.8:53 105.84.221.44.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.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 98.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.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

Files

memory/3540-0-0x0000000000400000-0x0000000000409000-memory.dmp

memory/3540-2-0x0000000000400000-0x0000000000409000-memory.dmp

memory/1868-4-0x0000000000720000-0x0000000000732000-memory.dmp

memory/1868-7-0x0000000000720000-0x0000000000732000-memory.dmp

memory/1868-9-0x0000000000720000-0x0000000000732000-memory.dmp

memory/1868-10-0x00000000001D0000-0x00000000001D5000-memory.dmp

memory/1868-12-0x00000000001D0000-0x00000000001D5000-memory.dmp

memory/1868-16-0x00000000001D0000-0x00000000001D5000-memory.dmp