flawedammyy | b5fba0e4fac247a8fc7f3e0d9dcdce0e982a3c1542e055193b7b74c4fbad51da

Analysis

max time kernel
3s
max time network
106s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2023 01:38

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General

Target

6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe
Size

746KB
MD5

f8cd52b70a11a1fb3f29c6f89ff971ec
SHA1

6a0c46818a6a10c2c5a98a0cce65fbaf95caa344
SHA256

6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20
SHA512

987b6b288a454b6198d4e7f94b7bba67cafe37f9654cd3cd72134a85958efd2125596ae48e66a8ee49ee3f4199dac7f136e1831f2bf4015f25d2980f0b866abe
SSDEEP

12288:PUYpJqMH2OwlaUPcWWw5XZV8f64RteVpN5ETMasTjcP6gX:zpJJWOwlaUPcWWwRZb4Rt+N5WMasHoX

Score

10^/10

flawedammyy trojan

Malware Config

Signatures

FlawedAmmyy RAT
Remote-access trojan based on leaked code for the Ammyy remote admin software.
trojan flawedammyy

Drops file in System32 directory 4 IoCs

Processes:

6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe

Modifies data under HKEY_USERS 9 IoCs

Processes:

6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin\hr = 537d56736608796d5b5b4e1552535925f017c264b26b	6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin\hr3 = f8446f7f2c983bf6b8486c0bd1f398e4b511b256acdb0c2e9b05dac465e6996057c0379975aae771010d6d7b3c6bd7e15acd4f2f1d051d72fb4f49942ddff8184e915d60	6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE	6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Ammyy	6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin	6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin	6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe

pid	Process
372	6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe

Suspicious use of SendNotifyMessage 1 IoCs

Processes:

6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe

pid	Process
372	6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe

description	pid	Process	procid_target
PID 1100 wrote to memory of 372	1100	6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe	22
PID 1100 wrote to memory of 372	1100	6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe	22
PID 1100 wrote to memory of 372	1100	6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe	22

C:\Users\Admin\AppData\Local\Temp\6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe
"C:\Users\Admin\AppData\Local\Temp\6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe"
1⤵
PID:840

C:\Users\Admin\AppData\Local\Temp\6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe
"C:\Users\Admin\AppData\Local\Temp\6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe" -service -lunch
1⤵
- Suspicious use of WriteProcessMemory
PID:1100
- C:\Users\Admin\AppData\Local\Temp\6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe
  "C:\Users\Admin\AppData\Local\Temp\6f2258383b92bfaf425f49fc7a5901bfa97a334de49ce015cf65396125c13d20.exe"
  2⤵
  - Drops file in System32 directory
  - Modifies data under HKEY_USERS
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:372

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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