flawedammyy | 2d068d78cdb398b0804690ba569695a08bf87dc8e91faa56194d6b6309aa9f97

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
15-06-2024 15:39

Target

AA_v3.2.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_v3.2.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	AA_v3.2.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	AA_v3.2.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	AA_v3.2.exe

Modifies data under HKEY_USERS 3 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	AA_v3.2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	AA_v3.2.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	AA_v3.2.exe

Suspicious use of AdjustPrivilegeToken 36 IoCs

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4128	AA_v3.2.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
4128	AA_v3.2.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4196 wrote to memory of 4128	4196	AA_v3.2.exe	90
PID 4196 wrote to memory of 4128	4196	AA_v3.2.exe	90
PID 4196 wrote to memory of 4128	4196	AA_v3.2.exe	90

C:\Users\Admin\AppData\Local\Temp\AA_v3.2.exe
"C:\Users\Admin\AppData\Local\Temp\AA_v3.2.exe"
1⤵
PID:4036

C:\Users\Admin\AppData\Local\Temp\AA_v3.2.exe
"C:\Users\Admin\AppData\Local\Temp\AA_v3.2.exe" -service -lunch
1⤵
- Suspicious use of WriteProcessMemory
PID:4196
- C:\Users\Admin\AppData\Local\Temp\AA_v3.2.exe
  "C:\Users\Admin\AppData\Local\Temp\AA_v3.2.exe"
  2⤵
  - Drops file in System32 directory
  - Modifies data under HKEY_USERS
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:4128

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4216,i,14486271492189381216,15799931579469722648,262144 --variations-seed-version --mojo-platform-channel-handle=4352 /prefetch:8
1⤵
PID:3560

C:\ProgramData\AMMYY\settings3.bin

Filesize
270B

MD5
6910d9160b66c4395f587a279e80f132

SHA1
54949c04c8c0970aa5e2d3fb2912318daab97b98

SHA256
72d44ac6019d486fc1a58334ff8ed692de0a9ed96de3142638c71376ceade87c

SHA512
82967a8bdbad58f2a81d063c84294153dbdd86322d4b6e3631122530dc7f00fd209ed1d2b0683eb60f726fd3d6f93c7615bd1d0d1fa1f5441119d0e5007582b9

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