Malware Analysis Report

2025-01-02 14:38

Sample ID 240916-ar8jeazcqa
Target e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118
SHA256 4e34f75037e77d558b6faba0368bafec5eeabdd24f586b1f6bdb7be4c9301434
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

4e34f75037e77d558b6faba0368bafec5eeabdd24f586b1f6bdb7be4c9301434

Threat Level: Known bad

The file e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

andromeda backdoor botnet discovery persistence

Andromeda, Gamarue

Detects Andromeda payload.

Adds policy Run key to start application

Deletes itself

Maps connected drives based on registry

Suspicious use of SetThreadContext

Drops file in Program Files directory

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-16 00:27

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-16 00:27

Reported

2024-09-16 00:30

Platform

win7-20240903-en

Max time kernel

142s

Max time network

128s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.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

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\svchost.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\411 = "C:\\PROGRA~3\\LOCALS~1\\Temp\\mszqaqa.bat" C:\Windows\syswow64\svchost.exe N/A

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\syswow64\svchost.exe N/A

Maps connected drives based on registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\disk\enum C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\PROGRA~3\LOCALS~1\Temp\mszqaqa.bat C:\Windows\syswow64\svchost.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\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\syswow64\svchost.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2392 wrote to memory of 2860 N/A C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe
PID 2392 wrote to memory of 2860 N/A C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe
PID 2392 wrote to memory of 2860 N/A C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe
PID 2392 wrote to memory of 2860 N/A C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe
PID 2392 wrote to memory of 2860 N/A C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe
PID 2392 wrote to memory of 2860 N/A C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe
PID 2392 wrote to memory of 2860 N/A C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe
PID 2860 wrote to memory of 1856 N/A C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe C:\Windows\syswow64\svchost.exe
PID 2860 wrote to memory of 1856 N/A C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe C:\Windows\syswow64\svchost.exe
PID 2860 wrote to memory of 1856 N/A C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe C:\Windows\syswow64\svchost.exe
PID 2860 wrote to memory of 1856 N/A C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe C:\Windows\syswow64\svchost.exe

Processes

C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe

C:\Windows\syswow64\svchost.exe

C:\Windows\syswow64\svchost.exe

Network

Country Destination Domain Proto
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 leninjiv.ru udp
US 8.8.8.8:53 leninjiv.ru udp
US 8.8.4.4:53 leninjiv.ru udp
US 8.8.4.4:53 leninjiv.ru udp

Files

memory/2860-0-0x0000000000400000-0x0000000000405000-memory.dmp

memory/2392-7-0x0000000000400000-0x000000000040F000-memory.dmp

memory/2860-6-0x0000000000400000-0x0000000000405000-memory.dmp

memory/2860-4-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2860-2-0x0000000000400000-0x0000000000405000-memory.dmp

memory/2860-8-0x0000000000400000-0x0000000000405000-memory.dmp

memory/1856-10-0x0000000000AF0000-0x0000000000AF8000-memory.dmp

memory/1856-12-0x0000000000AF0000-0x0000000000AF8000-memory.dmp

memory/1856-14-0x0000000000020000-0x0000000000025000-memory.dmp

memory/1856-18-0x0000000000020000-0x0000000000025000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-16 00:27

Reported

2024-09-16 00:30

Platform

win10v2004-20240802-en

Max time kernel

142s

Max time network

128s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.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

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\svchost.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\4968 = "C:\\PROGRA~3\\LOCALS~1\\Temp\\msdwbzyr.scr" C:\Windows\SysWOW64\svchost.exe N/A

Deletes itself

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

Maps connected drives based on registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\disk\enum C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\PROGRA~3\LOCALS~1\Temp\msdwbzyr.scr C:\Windows\SysWOW64\svchost.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\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\svchost.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2456 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe
PID 2456 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe
PID 2456 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe
PID 2456 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe
PID 2456 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe
PID 2456 wrote to memory of 2564 N/A C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe
PID 2564 wrote to memory of 2276 N/A C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe C:\Windows\SysWOW64\svchost.exe
PID 2564 wrote to memory of 2276 N/A C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe C:\Windows\SysWOW64\svchost.exe
PID 2564 wrote to memory of 2276 N/A C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe C:\Windows\SysWOW64\svchost.exe

Processes

C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\e3a9ec00edb2d8557f535d42fa7c8441_JaffaCakes118.exe

C:\Windows\SysWOW64\svchost.exe

C:\Windows\syswow64\svchost.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.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 leninjiv.ru udp
US 8.8.8.8:53 leninjiv.ru udp
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 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.4.4:53 leninjiv.ru udp
US 8.8.8.8:53 leninjiv.ru udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.4.4:53 leninjiv.ru udp
US 8.8.8.8:53 leninjiv.ru udp

Files

memory/2564-0-0x0000000000400000-0x0000000000405000-memory.dmp

memory/2456-1-0x0000000000400000-0x000000000040F000-memory.dmp

memory/2564-2-0x0000000000400000-0x0000000000405000-memory.dmp

memory/2276-4-0x0000000000B20000-0x0000000000B2E000-memory.dmp

memory/2276-6-0x0000000000B20000-0x0000000000B2E000-memory.dmp

memory/2276-8-0x00000000003D0000-0x00000000003D5000-memory.dmp

memory/2276-12-0x00000000003D0000-0x00000000003D5000-memory.dmp