flawedammyy | 9b3f4d6a9bae4d7f9cfe45e706db8fe4baef51ae12353941e8b1532b231e6eac | Triage

Analysis

max time kernel
151s
max time network
146s
platform
windows7_x64
resource
win7v200217
submitted
11/03/2020, 12:35

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General

Target

AA_v3.5.exe
Size

746KB
MD5

2cbf5657ffd8858a9597f296a60270c2
SHA1

b130611c92788337c4f6bb9e9454ff06eb409166
SHA256

9b3f4d6a9bae4d7f9cfe45e706db8fe4baef51ae12353941e8b1532b231e6eac
SHA512

06339a299c8c9ce55e9b96582e54e0bf9e04f894ceb47c07486adf8b0140c2a01fd0932207aca8112ee0b16ba8711fee9435e37339aafb94f167b5a736ee7d0b

Score

10^/10

trojan flawedammyy

Malware Config

Signatures

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1880	AA_v3.5.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1880	AA_v3.5.exe

Modifies data under HKEY_USERS 6 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	AA_v3.5.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin	AA_v3.5.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE	AA_v3.5.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy	AA_v3.5.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr = 537d567366097c6f5e5a4117515397ce57c8e1a8bd6b	AA_v3.5.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr3 = 4dad5a17386b5846020b48a00cb72ac332001d212a16dfea970e0b9ecf6194bb1b0d455b811d8292b607ebe2d73218ea9129cfdcaa2b6859e4a495b221349951	AA_v3.5.exe

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

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1860 wrote to memory of 1880	1860	AA_v3.5.exe	25
PID 1860 wrote to memory of 1880	1860	AA_v3.5.exe	25
PID 1860 wrote to memory of 1880	1860	AA_v3.5.exe	25
PID 1860 wrote to memory of 1880	1860	AA_v3.5.exe	25

C:\Users\Admin\AppData\Local\Temp\AA_v3.5.exe
"C:\Users\Admin\AppData\Local\Temp\AA_v3.5.exe"
1⤵
PID:1852

C:\Users\Admin\AppData\Local\Temp\AA_v3.5.exe
"C:\Users\Admin\AppData\Local\Temp\AA_v3.5.exe" -service -lunch
1⤵
- Suspicious use of WriteProcessMemory
PID:1860
- C:\Users\Admin\AppData\Local\Temp\AA_v3.5.exe
  "C:\Users\Admin\AppData\Local\Temp\AA_v3.5.exe"
  2⤵
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Modifies data under HKEY_USERS
  PID:1880

Network

MITRE ATT&CK Matrix

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