Analysis
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max time kernel
143s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system -
submitted
29-04-2024 09:24
Behavioral task
behavioral1
Sample
AA_v3.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
AA_v3.exe
Resource
win10v2004-20240419-en
Behavioral task
behavioral3
Sample
AeroAdmin.exe
Resource
win7-20240221-en
Behavioral task
behavioral4
Sample
AeroAdmin.exe
Resource
win10v2004-20240419-en
Behavioral task
behavioral5
Sample
AnyDesk.exe
Resource
win7-20231129-en
Behavioral task
behavioral6
Sample
AnyDesk.exe
Resource
win10v2004-20240419-en
General
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Target
AA_v3.exe
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Size
762KB
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MD5
e9b569f7cbf23d91df065c18f4c43840
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SHA1
5d7cb1a2ca7db04edf23dd3ed41125c8c867b0ad
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SHA256
d67c7ef1c8e2cd56e266902bef814ac328d64bbe06086f4ee24fbadbebf39605
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SHA512
a9f01663b0c0ce9d30bd6760847bf3c18318801634145ec75e047019a8e8a9b13ea8122449b8f45ad40b63d4551cb85230df1b41a41ddc33a39cfcf2ec237ccb
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SSDEEP
12288:kX5PFc+E0SlpOvcC1KL/q/IZVURtCdshX5x8jR31QEY0VEoge:2P++ZSlpOUC1KT4+URtYshX5aRlQEYte
Malware Config
Signatures
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FlawedAmmyy RAT
Remote-access trojan based on leaked code for the Ammyy remote admin software.
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Drops file in System32 directory 4 IoCs
description ioc Process 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 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 -
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\Content\CachePrefix 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 -
Suspicious use of AdjustPrivilegeToken 32 IoCs
description pid Process Token: SeBackupPrivilege 2484 AA_v3.exe Token: SeRestorePrivilege 2484 AA_v3.exe Token: SeBackupPrivilege 2484 AA_v3.exe Token: SeRestorePrivilege 2484 AA_v3.exe Token: SeBackupPrivilege 2484 AA_v3.exe Token: SeRestorePrivilege 2484 AA_v3.exe Token: SeBackupPrivilege 2484 AA_v3.exe Token: SeRestorePrivilege 2484 AA_v3.exe Token: SeBackupPrivilege 2484 AA_v3.exe Token: SeRestorePrivilege 2484 AA_v3.exe Token: SeBackupPrivilege 2484 AA_v3.exe Token: SeRestorePrivilege 2484 AA_v3.exe Token: SeBackupPrivilege 2484 AA_v3.exe Token: SeRestorePrivilege 2484 AA_v3.exe Token: SeBackupPrivilege 2484 AA_v3.exe Token: SeRestorePrivilege 2484 AA_v3.exe Token: SeBackupPrivilege 2484 AA_v3.exe Token: SeRestorePrivilege 2484 AA_v3.exe Token: SeBackupPrivilege 2484 AA_v3.exe Token: SeRestorePrivilege 2484 AA_v3.exe Token: SeBackupPrivilege 2484 AA_v3.exe Token: SeRestorePrivilege 2484 AA_v3.exe Token: SeBackupPrivilege 2484 AA_v3.exe Token: SeRestorePrivilege 2484 AA_v3.exe Token: SeBackupPrivilege 2484 AA_v3.exe Token: SeRestorePrivilege 2484 AA_v3.exe Token: SeBackupPrivilege 2484 AA_v3.exe Token: SeRestorePrivilege 2484 AA_v3.exe Token: SeBackupPrivilege 2484 AA_v3.exe Token: SeRestorePrivilege 2484 AA_v3.exe Token: SeBackupPrivilege 2484 AA_v3.exe Token: SeRestorePrivilege 2484 AA_v3.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2484 AA_v3.exe -
Suspicious use of SendNotifyMessage 1 IoCs
pid Process 2484 AA_v3.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 388 wrote to memory of 2484 388 AA_v3.exe 85 PID 388 wrote to memory of 2484 388 AA_v3.exe 85 PID 388 wrote to memory of 2484 388 AA_v3.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\AA_v3.exe"C:\Users\Admin\AppData\Local\Temp\AA_v3.exe"1⤵PID:876
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C:\Users\Admin\AppData\Local\Temp\AA_v3.exe"C:\Users\Admin\AppData\Local\Temp\AA_v3.exe" -service -lunch1⤵
- Suspicious use of WriteProcessMemory
PID:388 -
C:\Users\Admin\AppData\Local\Temp\AA_v3.exe"C:\Users\Admin\AppData\Local\Temp\AA_v3.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:2484
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
274B
MD5bcc40b676c5b0f5a176be92cc8f4199f
SHA15415364e6ab90151eb1272268cb75ef6c4306a2f
SHA256d3df407118bd28d28e7d3c8afc497c5e478e5d078f7792501ddecb45f3b51826
SHA512467c473be5b9f6e0b8302620b6fbd9ad84f90da2bae3247d8326a22bfdd902fd79e55a2160493903eb747db6ef38fc9decb3db372afa26667f374ca2d0ceb36d