flawedammyy | 349f7e00ee29b349b00c32318cb9b829b162167702957295712d37ebbb2a7a9a

Analysis

max time kernel
150s
max time network
152s
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 12:28

Target

AA_v3.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	AA_v3.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	AA_v3.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	AA_v3.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	AA_v3.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\Content\CachePrefix	AA_v3.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Ammyy	AA_v3.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin	AA_v3.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin\hr = 537d56736608796d5b5b4e155253d6f61d95c11bb26b	AA_v3.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Ammyy\Admin\hr3 = 3b0c6910ffbf6e76f14c40dda46469b15ea24cc363a903e3b9be8e640c887d9e3dbc26e9dadf2dc7a0ecb9019cabd307842e5c63747a007137ae89742a899de8e122dfa3	AA_v3.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	AA_v3.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	AA_v3.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin	AA_v3.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE	AA_v3.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4812	AA_v3.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
4812	AA_v3.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1076 wrote to memory of 4812	1076	AA_v3.exe	89
PID 1076 wrote to memory of 4812	1076	AA_v3.exe	89
PID 1076 wrote to memory of 4812	1076	AA_v3.exe	89

C:\Users\Admin\AppData\Local\Temp\AA_v3.exe
"C:\Users\Admin\AppData\Local\Temp\AA_v3.exe"
1⤵
PID:4608

C:\Users\Admin\AppData\Local\Temp\AA_v3.exe
"C:\Users\Admin\AppData\Local\Temp\AA_v3.exe" -service -lunch
1⤵
- Suspicious use of WriteProcessMemory
PID:1076

C:\ProgramData\AMMYY\hr

Filesize
22B

MD5
dfd65a8dc611ca99a3c9b620d5748474

SHA1
87a57b9c3aa221b27d6493ed4e9773aaf9636ddf

SHA256
815f45ad59634bc33ab7d3a12a85832c61ae9e46b9197ae9389fee9d53d45363

SHA512
5a98886b0f217635b04d1d8fddaf68b3f01255eba47817054c3871c17cc18d7ca41ca72cf390bfae4cb0827c8c2fd970db1ab3f22406eccf1946d5412a3513e8

Download Submit
C:\ProgramData\AMMYY\hr3

Filesize
68B

MD5
05685206a88f929fb06de33a400eec5d

SHA1
e80fdaf8777a7af9964ae15532dcd6b77f5fbad1

SHA256
03acaeb9b890be1c10b001f9ff2a2bc50844260dfadb427bdec4ade60816a9d4

SHA512
fdfc79ff1e3a5055f8896d829aec0a237cc893709a16c742ef2e5c5412cf00b0e2b60826f1652e06388468e1c65aac9eacadade94b0dbb2f6398108178fcad56

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

Filesize
270B

MD5
6910d9160b66c4395f587a279e80f132

SHA1
54949c04c8c0970aa5e2d3fb2912318daab97b98

SHA256
72d44ac6019d486fc1a58334ff8ed692de0a9ed96de3142638c71376ceade87c

SHA512
82967a8bdbad58f2a81d063c84294153dbdd86322d4b6e3631122530dc7f00fd209ed1d2b0683eb60f726fd3d6f93c7615bd1d0d1fa1f5441119d0e5007582b9

Download Submit