Malware Analysis Report

2024-10-16 05:09

Sample ID 240804-vl1a3avcna
Target f4d11e1d59d067e850a910d0100fa0f0N.exe
SHA256 fc88110016788b8ee65c2c29c6e9fe77132719c0c4d5e0a9a4e2f97bc5f2c0f2
Tags
ammyyadmin flawedammyy discovery trojan
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

fc88110016788b8ee65c2c29c6e9fe77132719c0c4d5e0a9a4e2f97bc5f2c0f2

Threat Level: Known bad

The file f4d11e1d59d067e850a910d0100fa0f0N.exe was found to be: Known bad.

Malicious Activity Summary

ammyyadmin flawedammyy discovery trojan

AmmyyAdmin payload

Ammyyadmin family

FlawedAmmyy RAT

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-04 17:05

Signatures

AmmyyAdmin payload

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

Ammyyadmin family

ammyyadmin

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-04 17:05

Reported

2024-08-04 17:07

Platform

win7-20240729-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f4d11e1d59d067e850a910d0100fa0f0N.exe"

Signatures

FlawedAmmyy RAT

trojan flawedammyy

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\f4d11e1d59d067e850a910d0100fa0f0N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\f4d11e1d59d067e850a910d0100fa0f0N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\f4d11e1d59d067e850a910d0100fa0f0N.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f4d11e1d59d067e850a910d0100fa0f0N.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f4d11e1d59d067e850a910d0100fa0f0N.exe

"C:\Users\Admin\AppData\Local\Temp\f4d11e1d59d067e850a910d0100fa0f0N.exe"

C:\Users\Admin\AppData\Local\Temp\f4d11e1d59d067e850a910d0100fa0f0N.exe

"C:\Users\Admin\AppData\Local\Temp\f4d11e1d59d067e850a910d0100fa0f0N.exe" -service -lunch

C:\Users\Admin\AppData\Local\Temp\f4d11e1d59d067e850a910d0100fa0f0N.exe

"C:\Users\Admin\AppData\Local\Temp\f4d11e1d59d067e850a910d0100fa0f0N.exe"

Network

N/A

Files

C:\ProgramData\AMMYY\settings3.bin

MD5 1aac7af5fbaf2605446a73cdd2b760f3
SHA1 e6951d61057eaeafb6a45ee4d0f12671da429669
SHA256 ffa108caefd070fd6a4afc9a30eeb754a671df5a2e7b0285fc511a2ce824ba1e
SHA512 f83414633a3032dc6929f0c5dee1cd7c2f5a9c32f5669eaed8788cc7cee5ab25aeb18d366d21f09544beaedcb8ab26690dc6dd2904a42ec15608c79401c77e19

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-04 17:05

Reported

2024-08-04 17:07

Platform

win10v2004-20240802-en

Max time kernel

94s

Max time network

95s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f4d11e1d59d067e850a910d0100fa0f0N.exe"

Signatures

FlawedAmmyy RAT

trojan flawedammyy

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\f4d11e1d59d067e850a910d0100fa0f0N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\f4d11e1d59d067e850a910d0100fa0f0N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\f4d11e1d59d067e850a910d0100fa0f0N.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f4d11e1d59d067e850a910d0100fa0f0N.exe

"C:\Users\Admin\AppData\Local\Temp\f4d11e1d59d067e850a910d0100fa0f0N.exe"

C:\Users\Admin\AppData\Local\Temp\f4d11e1d59d067e850a910d0100fa0f0N.exe

"C:\Users\Admin\AppData\Local\Temp\f4d11e1d59d067e850a910d0100fa0f0N.exe" -service -lunch

C:\Users\Admin\AppData\Local\Temp\f4d11e1d59d067e850a910d0100fa0f0N.exe

"C:\Users\Admin\AppData\Local\Temp\f4d11e1d59d067e850a910d0100fa0f0N.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 39.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

C:\ProgramData\AMMYY\settings3.bin

MD5 1aac7af5fbaf2605446a73cdd2b760f3
SHA1 e6951d61057eaeafb6a45ee4d0f12671da429669
SHA256 ffa108caefd070fd6a4afc9a30eeb754a671df5a2e7b0285fc511a2ce824ba1e
SHA512 f83414633a3032dc6929f0c5dee1cd7c2f5a9c32f5669eaed8788cc7cee5ab25aeb18d366d21f09544beaedcb8ab26690dc6dd2904a42ec15608c79401c77e19