flawedammyy | 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
11-01-2024 20:23

Target

AAv3exe.exe
Size

722KB
MD5

45c9b54d66cbcc2de89f93e25f368a45
SHA1

2e5265f35f75a50c89e592e127bc80e1e45aa840
SHA256

349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a
SHA512

25c3f1ec6d2e233464090f584777b15f18acfd1cb12124c236680689545ec8208bc364d26d7202e38368dbec34cd824600afb51845df8c9de8c8e83fba8d8b1f
SSDEEP

12288:x2QKNGp2YPjE0d63iVg5Bfi781Rt1hpGqzdpW9eKVQvTPRpsbS5hEgK:xSIp2Ydd6SVcpz1RtXpGadsbShK

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	AAv3exe.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	AAv3exe.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	AAv3exe.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	AAv3exe.exe

Modifies data under HKEY_USERS 9 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	AAv3exe.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin\hr3 = 8b52ec4cb6ea3fa29033c2c3aa5040e2dc47934ad76e2e4edd1a2828f4a893b359728f219498aaf3dfda22dc52b1151ab3a5206bda32410fac2f9d893c57c74e7e26e1f3	AAv3exe.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin	AAv3exe.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE	AAv3exe.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Ammyy	AAv3exe.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin	AAv3exe.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin\hr = 537d56736608796d5b5b4e155253eed9fe20841bb26b	AAv3exe.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	AAv3exe.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	AAv3exe.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2020	AAv3exe.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2020	AAv3exe.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4676 wrote to memory of 2020	4676	AAv3exe.exe	23
PID 4676 wrote to memory of 2020	4676	AAv3exe.exe	23
PID 4676 wrote to memory of 2020	4676	AAv3exe.exe	23

C:\Users\Admin\AppData\Local\Temp\AAv3exe.exe
"C:\Users\Admin\AppData\Local\Temp\AAv3exe.exe"
1⤵
PID:3988

C:\Users\Admin\AppData\Local\Temp\AAv3exe.exe
"C:\Users\Admin\AppData\Local\Temp\AAv3exe.exe" -service -lunch
1⤵
- Suspicious use of WriteProcessMemory
PID:4676
- C:\Users\Admin\AppData\Local\Temp\AAv3exe.exe
  "C:\Users\Admin\AppData\Local\Temp\AAv3exe.exe"
  2⤵
  - Drops file in System32 directory
  - Modifies data under HKEY_USERS
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:2020

C:\ProgramData\AMMYY\hr

Filesize
22B

MD5
fe1d8ad32775f423f3152bec0a4fab68

SHA1
b219d2486b0e7e3816b4dc82401cb2482ba0c3a3

SHA256
6bc0f2daec23d0dcef4fbba08580d129b3c09dfbb8d35aa01aa21ea592309ab7

SHA512
16b1e11fdbc3230f2e3f14d59564f08aa590c5fc74092d675fb79d9ac8b58d04703572f8091e5fe09c576677ee28dd39bcaefa0fe3062020f92e9abf2d540808

Download Submit
C:\ProgramData\AMMYY\hr3

Filesize
68B

MD5
00ad8e02512ceaf61dac1a0384505245

SHA1
23b5aeb1eeb8b8f2caf33d01f7e5024365f7d4db

SHA256
c30bb584fa563c885661b77e31b68f0e0a1cc65c0add63c49e7eb69a30d24e50

SHA512
0768a18dbca3e23a6f7a7a5b2cab16fc84a9d0b5a655a3a343d6e242bbdd5da585946a0828a0d4f6f247f1503e27f76d1a5e2fac0c00c91dd80a3ff905d617e1

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

Filesize
270B

MD5
6910d9160b66c4395f587a279e80f132

SHA1
54949c04c8c0970aa5e2d3fb2912318daab97b98

SHA256
72d44ac6019d486fc1a58334ff8ed692de0a9ed96de3142638c71376ceade87c

SHA512
82967a8bdbad58f2a81d063c84294153dbdd86322d4b6e3631122530dc7f00fd209ed1d2b0683eb60f726fd3d6f93c7615bd1d0d1fa1f5441119d0e5007582b9

Download Submit