flawedammyy | 42b1ae153366264dc556bcf909ade649caeb796151458e1096a3087b1c956c7e

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
28-01-2024 08:32

Target

Ammyy Admin Corporate v3.5.exe
Size

746KB
MD5

2fcbad97d4443200c6d103b7474466f0
SHA1

a94db856006bbf526d57217ff4d4b2f73ee53f7c
SHA256

4ce31888140938c0409b7bd9bd46914232fc2d490181eb8ceb74941056a2b765
SHA512

56c093e09ecab1e9a99b99638591fdd4824ce84e68e7daddc228d1e479a8d51304ed8d72b511cdb4ec74292d0a0bb42ff02761001f0296503aca7c0e66565516
SSDEEP

12288:PUYiJqMH2OwlaUPcWWwTXZV8f64RteVpN5ETMasTjcP6gX:ziJJWOwlaUPcWWwDZb4Rt+N5WMasHoX

Score

10^/10

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

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	Ammyy Admin Corporate v3.5.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	Ammyy Admin Corporate v3.5.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	Ammyy Admin Corporate v3.5.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	Ammyy Admin Corporate v3.5.exe

Modifies data under HKEY_USERS 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin	Ammyy Admin Corporate v3.5.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin\hr = 537d56736608796d5b5b4e155253289a66a58c0eb26b	Ammyy Admin Corporate v3.5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	Ammyy Admin Corporate v3.5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	Ammyy Admin Corporate v3.5.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE	Ammyy Admin Corporate v3.5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Ammyy	Ammyy Admin Corporate v3.5.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	Ammyy Admin Corporate v3.5.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin	Ammyy Admin Corporate v3.5.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin\hr3 = b912a7cce73d1bd13a77fdf497b92815a3c333471cad43cfd2c50f1243de9f0d6fa431528e994f5a1f0febfe6dee498a196ae4521873706374242315675efa61b2bc1d0c	Ammyy Admin Corporate v3.5.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3268	Ammyy Admin Corporate v3.5.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
3268	Ammyy Admin Corporate v3.5.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2400 wrote to memory of 3268	2400	Ammyy Admin Corporate v3.5.exe	88
PID 2400 wrote to memory of 3268	2400	Ammyy Admin Corporate v3.5.exe	88
PID 2400 wrote to memory of 3268	2400	Ammyy Admin Corporate v3.5.exe	88

C:\Users\Admin\AppData\Local\Temp\Ammyy Admin Corporate v3.5.exe
"C:\Users\Admin\AppData\Local\Temp\Ammyy Admin Corporate v3.5.exe"
1⤵
PID:3424

C:\Users\Admin\AppData\Local\Temp\Ammyy Admin Corporate v3.5.exe
"C:\Users\Admin\AppData\Local\Temp\Ammyy Admin Corporate v3.5.exe" -service -lunch
1⤵
- Suspicious use of WriteProcessMemory
PID:2400
- C:\Users\Admin\AppData\Local\Temp\Ammyy Admin Corporate v3.5.exe
  "C:\Users\Admin\AppData\Local\Temp\Ammyy Admin Corporate v3.5.exe"
  2⤵
  - Drops file in System32 directory
  - Modifies data under HKEY_USERS
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:3268

C:\ProgramData\AMMYY\hr

Filesize
22B

MD5
feb23b908196dbeeceea462983f03881

SHA1
1888bbd21ddccf78fb23df81583cc4a768909abc

SHA256
b78d4ce557b867a88345a970455684600571b192996c30c9c92b019ecbc80723

SHA512
3e874d27fd085cae4eebb014b8a7f0888f4eeb4c84847c861ac4b8842a565e5db861647ffaaa218aafd7a6db8a48e299e63804a83fc2109671cf056876c9dca7

Download Submit
C:\ProgramData\AMMYY\hr3

Filesize
68B

MD5
92e4d7bf15417be426a9d093d2031214

SHA1
961f17b2e86122acb29d3e8429074c3f9805873e

SHA256
e28ffeef02651ca6ac55a81cb0d8492e494e96946a586cbfb016e609cb6cd5b5

SHA512
03b771c91a85b41558ea98b19814f1638691ba98aecd21b53360c4a534cad417b168660e29f94b6e453432b9a8aecf99e1d6f4ec8157ca78c307c3d944d0dba2

Download Submit
C:\ProgramData\AMMYY\settings3.bin

Filesize
271B

MD5
714f2508d4227f74b6adacfef73815d8

SHA1
a35c8a796e4453c0c09d011284b806d25bdad04c

SHA256
a5579945f23747541c0e80b79e79375d4ca44feafcd425ee9bd9302e35312480

SHA512
1171a6eac6d237053815a40c2bcc2df9f4209902d6157777377228f3b618cad50c88a9519444ed5c447cf744e4655272fb42dabb567df85b4b19b1a2f1d086d8

Download Submit