flawedammyy | 42b1ae153366264dc556bcf909ade649caeb796151458e1096a3087b1c956c7e

Analysis

max time kernel
152s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
01-01-2024 09:57

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

Processes:

Ammyy Admin Corporate v3.5.exe

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

Processes:

Ammyy Admin Corporate v3.5.exe

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE	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\Cookies\CachePrefix = "Cookie:"	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	Ammyy Admin Corporate v3.5.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Ammyy	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\hr = 537d56736608796d5b5b4e15525314c9fc7b141fb26b	Ammyy Admin Corporate v3.5.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin\hr3 = 09c13c27a3023c56484e3d68284d35832edb9d3b766ce178b8444eae892ef5aa0fe212ef3f6a299995367f8d540551a9e13f9b3a5ed286e004363048a023972f2844fb51	Ammyy Admin Corporate v3.5.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

Ammyy Admin Corporate v3.5.exe

pid	Process
1620	Ammyy Admin Corporate v3.5.exe

Suspicious use of SendNotifyMessage 1 IoCs

Processes:

Ammyy Admin Corporate v3.5.exe

pid	Process
1620	Ammyy Admin Corporate v3.5.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

Ammyy Admin Corporate v3.5.exe

description	pid	Process	procid_target
PID 5036 wrote to memory of 1620	5036	Ammyy Admin Corporate v3.5.exe	31
PID 5036 wrote to memory of 1620	5036	Ammyy Admin Corporate v3.5.exe	31
PID 5036 wrote to memory of 1620	5036	Ammyy Admin Corporate v3.5.exe	31

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:4668

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:5036
- 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:1620

C:\ProgramData\AMMYY\hr

Filesize
22B

MD5
a67433748cfcf149a6f63071bbde1978

SHA1
9b05433668ccc5327ebc49ea955d1896c26b8cc2

SHA256
a8597edf1c34a5bfb0d935f22297865160c978933a9598ca29cd8048b21f3195

SHA512
642da2a6a70c567a5f538d9462ff74a043df73f05a936a4b6f8f72d7eaf797496f3bc1d6c7d6f4947b5a6840a0118d43f0e99600150bf99e0de1f797af55418a

Download Submit
C:\ProgramData\AMMYY\hr3

Filesize
68B

MD5
8ffec72a7c2f98a1ea5b67c9920b6af5

SHA1
0ab9228671c49f71986742a8973286d127a0d0a2

SHA256
e9ec86c22e004ba61066c9754f5be108e333a5db42db68743212b174e769b6e8

SHA512
889d26de53fd6409150838a507ef2c5e62e6fe028fe8fc8361288caccf51a356a08c59aedf298bab3da3fe5f6ab5a7420e5babe9117693cd3e90f45d4a5f97d5

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

Filesize
271B

MD5
714f2508d4227f74b6adacfef73815d8

SHA1
a35c8a796e4453c0c09d011284b806d25bdad04c

SHA256
a5579945f23747541c0e80b79e79375d4ca44feafcd425ee9bd9302e35312480

SHA512
1171a6eac6d237053815a40c2bcc2df9f4209902d6157777377228f3b618cad50c88a9519444ed5c447cf744e4655272fb42dabb567df85b4b19b1a2f1d086d8

Download Submit