Analysis Overview
SHA256
ee573647477339784dcef81024de1be1762833a20e5cc2b89a93e47d05b86b6a
Threat Level: Known bad
The file AA_v3.exe was found to be: Known bad.
Malicious Activity Summary
AmmyyAdmin payload
Ammyyadmin family
FlawedAmmyy RAT
Loads dropped DLL
Checks computer location settings
Writes to the Master Boot Record (MBR)
Drops file in System32 directory
System Location Discovery: System Language Discovery
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Modifies data under HKEY_USERS
Suspicious use of WriteProcessMemory
Modifies system certificate store
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-09-13 14:44
Signatures
AmmyyAdmin payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Ammyyadmin family
Analysis: behavioral1
Detonation Overview
Submitted
2024-09-13 14:44
Reported
2024-09-13 14:44
Platform
win7-20240903-en
Max time kernel
13s
Max time network
9s
Command Line
Signatures
FlawedAmmyy RAT
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\system32\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\system32\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\system32\rundll32.exe | N/A |
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PhysicalDrive0 | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| File opened for modification | \??\PhysicalDrive0 | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\103621DE9CD5414CC2538780B4B75751 | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\A82946818BB0433A7DC1AFD2189B16AF | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\A82946818BB0433A7DC1AFD2189B16AF | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\103621DE9CD5414CC2538780B4B75751 | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
Modifies data under HKEY_USERS
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0" | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DAC19DB6-26F7-4B6F-AFA3-F62EBEE73BC8}\ca-f9-26-7f-9d-2f | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Set value (data) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin\hr3 = 07048d4c5aa6c743033abd473880ab32c1347572250285fa86bc646eeeb589946a0a53550aed4456baebf248dedf1bf370a73e69da7d46449ef9670c8db9e1dade90c2bea5f57a17efc285 | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1" | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\CRLs | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\CTLs | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\CTLs | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Set value (data) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\CRLs | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\Certificates | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Set value (data) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0169000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DAC19DB6-26F7-4B6F-AFA3-F62EBEE73BC8} | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DAC19DB6-26F7-4B6F-AFA3-F62EBEE73BC8}\WpadDecisionReason = "1" | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ca-f9-26-7f-9d-2f\WpadDecision = "0" | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\Certificates | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\Certificates | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\CRLs | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ca-f9-26-7f-9d-2f\WpadDecisionReason = "1" | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\My | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\CRLs | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\CRLs | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\CTLs | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Set value (data) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DAC19DB6-26F7-4B6F-AFA3-F62EBEE73BC8}\WpadDecisionTime = 603cc773eb05db01 | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DAC19DB6-26F7-4B6F-AFA3-F62EBEE73BC8}\WpadDecision = "0" | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\CTLs | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Set value (data) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ca-f9-26-7f-9d-2f\WpadDecisionTime = 603cc773eb05db01 | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\CRLs | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\CTLs | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\CTLs | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\CRLs | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\CTLs | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\Certificates | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\CRLs | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Set value (data) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\Certificates | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\CTLs | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Set value (str) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DAC19DB6-26F7-4B6F-AFA3-F62EBEE73BC8}\WpadNetworkName = "Network 3" | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\CRLs | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Ammyy\Admin | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Set value (data) | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\Certificates | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\Certificates | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ca-f9-26-7f-9d-2f | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\Certificates | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
Modifies system certificate store
| Description | Indicator | Process | Target |
| Set value (data) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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 | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8 | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1108 wrote to memory of 3068 | N/A | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe |
| PID 1108 wrote to memory of 3068 | N/A | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe |
| PID 1108 wrote to memory of 3068 | N/A | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe |
| PID 1108 wrote to memory of 3068 | N/A | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe |
| PID 3068 wrote to memory of 2784 | N/A | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | C:\Windows\system32\rundll32.exe |
| PID 3068 wrote to memory of 2784 | N/A | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | C:\Windows\system32\rundll32.exe |
| PID 3068 wrote to memory of 2784 | N/A | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | C:\Windows\system32\rundll32.exe |
| PID 3068 wrote to memory of 2784 | N/A | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | C:\Windows\system32\rundll32.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\AA_v3.exe
"C:\Users\Admin\AppData\Local\Temp\AA_v3.exe"
C:\Users\Admin\AppData\Local\Temp\AA_v3.exe
"C:\Users\Admin\AppData\Local\Temp\AA_v3.exe" -service -lunch
C:\Users\Admin\AppData\Local\Temp\AA_v3.exe
"C:\Users\Admin\AppData\Local\Temp\AA_v3.exe"
C:\Windows\system32\rundll32.exe
rundll32.exe "C:\ProgramData\AMMYY\aa_nts.dll",run
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | rl.ammyy.com | udp |
| NL | 188.42.129.148:80 | rl.ammyy.com | tcp |
| DE | 136.243.104.235:443 | tcp | |
| US | 8.8.8.8:53 | www.ammyy.com | udp |
| DE | 136.243.18.118:80 | www.ammyy.com | tcp |
| DE | 136.243.18.118:443 | www.ammyy.com | tcp |
| US | 8.8.8.8:53 | r11.o.lencr.org | udp |
| GB | 173.222.211.9:80 | r11.o.lencr.org | tcp |
Files
C:\ProgramData\AMMYY\settings3.bin
| MD5 | 307b8fa94d4e05bcefb9eaf530052d86 |
| SHA1 | 1b35b3598b1f8ed7148893d2eb6a3ba416b113dc |
| SHA256 | 685190b35d6bf2b364732ed77191b0ac0a8d440ee7d9afdda20c48d6423cacb1 |
| SHA512 | d19c516d745634b72132264d4924473292b0ea75c67dd77d0079e1eb7a41ff2bf567c5c69787cc5b3d55e2059319748edf56393b989105aba24dbaa9c2ecb81d |
C:\ProgramData\AMMYY\aa_nts.dll
| MD5 | 480a66902e6e7cdafaa6711e8697ff8c |
| SHA1 | 6ac730962e7c1dba9e2ecc5733a506544f3c8d11 |
| SHA256 | 7eaaaa6010bbcd6bb8c9ad08d4b0966c7aedc9b2ac24758f170012ac36e508b5 |
| SHA512 | 7d010cd47b7d1adf66f9c97afc6c3805997aa5c7cc6ff13eddee81f24cf2b95a3fe375ec5b3d6185c0bc8840b4ad91ae143c73a39af26391cc182ab6a1793ba5 |
C:\ProgramData\AMMYY\aa_nts.msg
| MD5 | 76038623e270f399769df67a3ed15c16 |
| SHA1 | ebf7d7537f45738be48e6f64d59c846b13fb4334 |
| SHA256 | 4dbdf4f709d50f9521e92ce5f7d4f305e2384bcda387fb2b325ff17d205bb687 |
| SHA512 | a5316694d844e5b10c589f58fdf65645568b3909b2914f85c99195f9625e4124f787bc0980cff98f1e8289ff84824620a03f32cdab18e5bbcb2e59b33f397aec |
Analysis: behavioral2
Detonation Overview
Submitted
2024-09-13 14:44
Reported
2024-09-13 14:47
Platform
win10v2004-20240802-en
Max time kernel
94s
Max time network
98s
Command Line
Signatures
FlawedAmmyy RAT
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PhysicalDrive0 | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3428 wrote to memory of 3504 | N/A | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe |
| PID 3428 wrote to memory of 3504 | N/A | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe |
| PID 3428 wrote to memory of 3504 | N/A | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe | C:\Users\Admin\AppData\Local\Temp\AA_v3.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\AA_v3.exe
"C:\Users\Admin\AppData\Local\Temp\AA_v3.exe"
C:\Users\Admin\AppData\Local\Temp\AA_v3.exe
"C:\Users\Admin\AppData\Local\Temp\AA_v3.exe" -service -lunch
C:\Users\Admin\AppData\Local\Temp\AA_v3.exe
"C:\Users\Admin\AppData\Local\Temp\AA_v3.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 73.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 20.177.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 92.12.20.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
Files
C:\ProgramData\AMMYY\settings3.bin
| MD5 | 466a14a6611a0b9563804e51ff64ed2a |
| SHA1 | eb70ba77053cfe295c43831a57dd4cc8f6bbea61 |
| SHA256 | a0fb74d438d661be8d1ab0d53d2184fad196e46602754c6791137e78e7757d69 |
| SHA512 | c53d3aded350a4f39f4d12bb549e31f679c46e102d2e12dbcda0c99a8c4b3e423ee33a00106318a5837861d553f5779a564e64c3105ff6c131c2cfb05cf65f0d |