Malware Analysis Report

2025-01-23 11:46

Sample ID 241224-xyldsavlhm
Target 0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63
SHA256 0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63
Tags
ammyyadmin flawedammyy discovery rat 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

0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63

Threat Level: Known bad

The file 0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63 was found to be: Known bad.

Malicious Activity Summary

ammyyadmin flawedammyy discovery rat trojan

Ammyy Admin

FlawedAmmyy RAT

AmmyyAdmin payload

Ammyyadmin family

Flawedammyy family

Checks computer location settings

Drops file in System32 directory

System Location Discovery: System Language Discovery

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Modifies data under HKEY_USERS

Suspicious use of SendNotifyMessage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-12-24 19:15

Signatures

AmmyyAdmin payload

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

Ammyyadmin family

ammyyadmin

Analysis: behavioral1

Detonation Overview

Submitted

2024-12-24 19:15

Reported

2024-12-24 19:18

Platform

win7-20240903-en

Max time kernel

150s

Max time network

144s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe"

Signatures

Ammyy Admin

rat ammyyadmin

AmmyyAdmin 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

Ammyyadmin family

ammyyadmin

FlawedAmmyy RAT

trojan flawedammyy

Flawedammyy family

flawedammyy

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.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\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe N/A

Modifies data under HKEY_USERS

Description Indicator Process Target
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr3 = 988727dceff8c60205dad64846e91d9c1c5413af9dfb40a0baf0a39cc95d3dd18ec7a60d2105c90c86986661bdd75978641107f8f157c6295edb7fed81e746a71004a61ac869e38bbce179 C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe

"C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe"

C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe

"C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe" -service -lunch

C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe

"C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 rl.ammyy.com udp
NL 188.42.129.148:80 rl.ammyy.com tcp
DE 136.243.104.235:443 tcp

Files

memory/2956-0-0x0000000000400000-0x00000000004D5000-memory.dmp

memory/2392-2-0x0000000000400000-0x00000000004D5000-memory.dmp

memory/2392-3-0x0000000001280000-0x0000000001355000-memory.dmp

memory/2392-4-0x0000000000400000-0x00000000004D5000-memory.dmp

memory/2956-6-0x0000000000400000-0x00000000004D5000-memory.dmp

C:\ProgramData\AMMYY\settings3.bin

MD5 bcc40b676c5b0f5a176be92cc8f4199f
SHA1 5415364e6ab90151eb1272268cb75ef6c4306a2f
SHA256 d3df407118bd28d28e7d3c8afc497c5e478e5d078f7792501ddecb45f3b51826
SHA512 467c473be5b9f6e0b8302620b6fbd9ad84f90da2bae3247d8326a22bfdd902fd79e55a2160493903eb747db6ef38fc9decb3db372afa26667f374ca2d0ceb36d

memory/2648-8-0x0000000000400000-0x00000000004D5000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-12-24 19:15

Reported

2024-12-24 19:18

Platform

win10v2004-20241007-en

Max time kernel

150s

Max time network

135s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe"

Signatures

Ammyy Admin

rat ammyyadmin

AmmyyAdmin 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

Ammyyadmin family

ammyyadmin

FlawedAmmyy RAT

trojan flawedammyy

Flawedammyy family

flawedammyy

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.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\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe N/A

Modifies data under HKEY_USERS

Description Indicator Process Target
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin\hr3 = 7d421c1816dccbc532b057389971ee6fe7b1a336b5cb44559e73659adbcb2bef3340f47abdae33cf7fc5480bfa46cefb242d91b4eeb740d5d20ac22c4acec6873dd2fef8e44205596d1b6b C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Ammyy C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe

"C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe"

C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe

"C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe" -service -lunch

C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe

"C:\Users\Admin\AppData\Local\Temp\0650de7f9dcb04f405921fe352a1076b70eea701423806badf1f647e5c88ee63.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 rl.ammyy.com udp
NL 188.42.129.148:80 rl.ammyy.com tcp
DE 136.243.104.235:443 tcp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 22.49.80.91.in-addr.arpa udp
US 8.8.8.8:53 148.129.42.188.in-addr.arpa udp
US 8.8.8.8:53 235.104.243.136.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 134.130.81.91.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/2872-0-0x0000000000400000-0x00000000004D5000-memory.dmp

memory/808-2-0x0000000000400000-0x00000000004D5000-memory.dmp

memory/808-3-0x0000000000400000-0x00000000004D5000-memory.dmp

C:\ProgramData\AMMYY\settings3.bin

MD5 bcc40b676c5b0f5a176be92cc8f4199f
SHA1 5415364e6ab90151eb1272268cb75ef6c4306a2f
SHA256 d3df407118bd28d28e7d3c8afc497c5e478e5d078f7792501ddecb45f3b51826
SHA512 467c473be5b9f6e0b8302620b6fbd9ad84f90da2bae3247d8326a22bfdd902fd79e55a2160493903eb747db6ef38fc9decb3db372afa26667f374ca2d0ceb36d

memory/2872-5-0x0000000000400000-0x00000000004D5000-memory.dmp

memory/1684-7-0x0000000000400000-0x00000000004D5000-memory.dmp