Malware Analysis Report

2024-10-24 20:54

Sample ID 230615-n4j88sgd22
Target sf.exe
SHA256 5fc600351bade74c2791fc526bca6bb606355cc65e5253f7f791254db58ee7fa
Tags
ammyyadmin flawedammyy trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

5fc600351bade74c2791fc526bca6bb606355cc65e5253f7f791254db58ee7fa

Threat Level: Known bad

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

Malicious Activity Summary

ammyyadmin flawedammyy trojan

AmmyyAdmin payload

Ammyyadmin family

FlawedAmmyy RAT

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-06-15 11:57

Signatures

AmmyyAdmin payload

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

Ammyyadmin family

ammyyadmin

Analysis: behavioral1

Detonation Overview

Submitted

2023-06-15 11:57

Reported

2023-06-15 11:59

Platform

win7-20230220-en

Max time kernel

124s

Max time network

33s

Command Line

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

Signatures

FlawedAmmyy RAT

trojan flawedammyy

Suspicious behavior: GetForegroundWindowSpam

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

Processes

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

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

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

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

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

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

Network

N/A

Files

C:\ProgramData\AMMYY\settings3.bin

MD5 ac7221c691ef0a93dbbb5bee6efcb7ec
SHA1 54f197fef16badefb4bf0d7339f6bd1099e505da
SHA256 b6b033b71d3f7f92986e32a61b3244b9856e82a9c3d233696a0dfa29a517106f
SHA512 226299ab1b7b388473163f4fecc41d536755586b4c275475128c5e5946554cd9ca69df223469130d85516f2ac2330a2cb35dec2879355ea0186b63d8429dcd6b

Analysis: behavioral2

Detonation Overview

Submitted

2023-06-15 11:57

Reported

2023-06-15 11:59

Platform

win10v2004-20230220-en

Max time kernel

150s

Max time network

153s

Command Line

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

Signatures

FlawedAmmyy RAT

trojan flawedammyy

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1176 wrote to memory of 4388 N/A C:\Users\Admin\AppData\Local\Temp\sf.exe C:\Users\Admin\AppData\Local\Temp\sf.exe
PID 1176 wrote to memory of 4388 N/A C:\Users\Admin\AppData\Local\Temp\sf.exe C:\Users\Admin\AppData\Local\Temp\sf.exe
PID 1176 wrote to memory of 4388 N/A C:\Users\Admin\AppData\Local\Temp\sf.exe C:\Users\Admin\AppData\Local\Temp\sf.exe

Processes

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

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

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

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

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 93.184.221.240:80 tcp
US 8.8.8.8:53 108.211.229.192.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 14.103.197.20.in-addr.arpa udp
US 40.125.122.176:443 tcp
IE 13.69.239.74:443 tcp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 40.125.122.176:443 tcp
US 8.248.3.254:80 tcp
US 40.125.122.176:443 tcp
US 8.8.8.8:53 64.13.109.52.in-addr.arpa udp
US 40.125.122.176:443 tcp
NL 173.223.113.164:443 tcp
US 40.125.122.176:443 tcp
US 40.125.122.176:443 tcp
US 93.184.221.240:80 tcp
NL 173.223.113.131:80 tcp
US 204.79.197.203:80 tcp
US 40.125.122.176:443 tcp
US 40.125.122.176:443 tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp

Files

C:\ProgramData\AMMYY\settings3.bin

MD5 ac7221c691ef0a93dbbb5bee6efcb7ec
SHA1 54f197fef16badefb4bf0d7339f6bd1099e505da
SHA256 b6b033b71d3f7f92986e32a61b3244b9856e82a9c3d233696a0dfa29a517106f
SHA512 226299ab1b7b388473163f4fecc41d536755586b4c275475128c5e5946554cd9ca69df223469130d85516f2ac2330a2cb35dec2879355ea0186b63d8429dcd6b