Analysis
- max time kernel
143s - max time network
151s - platform
windows7_x64 - resource
win7-20231215-en - resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system - submitted
03/01/2024, 06:26
Static task
static1
Behavioral task
behavioral1
Sample
ama.exe
Resource
win7-20231215-en
17 signatures
150 seconds
General
- Target ama.exe
- Size 4.2MB
- Sample240103-g67c8acbak
- SHA256 7067efc25c133206570865eb8e8063d59894e5a3c457e287ca050d6fc3d182d4
- MD5 85063be1269280d47cd7a92ac929e8d7
- SHA1 263410e5468c34b22002ddd6c38c0edec54c5130
- SHA512 68f3a7be4d89fb4a2d09163c5d90f60c9036b3329f9ae5a718a17611b8105eee35d87b4ed598a44d1933f761952eaf60ea3f9c85f8da0cf4ed42ffc0653c69db
- SSDEEP 98304:aXQL86ZtG2fZyxobYPe9qVg8xhctOiJbA/N5NOL9L+xBgq:aXCU2fZWCYPe9uhg8iG2R
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
amadey
Version
-
4.13
C2
-
http://185.172.128.5
Attributes
-
install_dir
4fdb51ccdc
-
install_file
Utsysc.exe
-
strings_key
11bb398ff31ee80d2c37571aecd1d36d
-
url_paths
/v8sjh3hs8/index.php
rc4.plain
Signatures
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 4 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ ama.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ Utsysc.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ Utsysc.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ Utsysc.exe - Blocklisted process makes network request 2 IoCs
flow pid Process 9 2296 rundll32.exe 12 2456 rundll32.exe - Downloads MZ/PE file
- Checks BIOS information in registry 2 TTPs 8 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion Utsysc.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion Utsysc.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion Utsysc.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion Utsysc.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion Utsysc.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion Utsysc.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion ama.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion ama.exe - Executes dropped EXE 3 IoCs
pid Process 2848 Utsysc.exe 1652 Utsysc.exe 2844 Utsysc.exe - Loads dropped DLL 14 IoCs
pid Process 760 ama.exe 760 ama.exe 2120 rundll32.exe 2120 rundll32.exe 2120 rundll32.exe 2120 rundll32.exe 2296 rundll32.exe 2296 rundll32.exe 2296 rundll32.exe 2296 rundll32.exe 2456 rundll32.exe 2456 rundll32.exe 2456 rundll32.exe 2456 rundll32.exe - Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Utsysc.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Utsysc.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA ama.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Utsysc.exe - Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
pid Process 760 ama.exe 2848 Utsysc.exe 1652 Utsysc.exe 2844 Utsysc.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2888 schtasks.exe - Suspicious behavior: EnumeratesProcesses 9 IoCs
pid Process 760 ama.exe 2848 Utsysc.exe 2296 rundll32.exe 2296 rundll32.exe 1652 Utsysc.exe 2296 rundll32.exe 2296 rundll32.exe 1184 powershell.exe 2844 Utsysc.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1184 powershell.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 760 ama.exe - Suspicious use of WriteProcessMemory 40 IoCs
description pid Process procid_target PID 760 wrote to memory of 2848 760 ama.exe 28 PID 760 wrote to memory of 2848 760 ama.exe 28 PID 760 wrote to memory of 2848 760 ama.exe 28 PID 760 wrote to memory of 2848 760 ama.exe 28 PID 2848 wrote to memory of 2888 2848 Utsysc.exe 29 PID 2848 wrote to memory of 2888 2848 Utsysc.exe 29 PID 2848 wrote to memory of 2888 2848 Utsysc.exe 29 PID 2848 wrote to memory of 2888 2848 Utsysc.exe 29 PID 1096 wrote to memory of 1652 1096 taskeng.exe 36 PID 1096 wrote to memory of 1652 1096 taskeng.exe 36 PID 1096 wrote to memory of 1652 1096 taskeng.exe 36 PID 1096 wrote to memory of 1652 1096 taskeng.exe 36 PID 2848 wrote to memory of 2120 2848 Utsysc.exe 37 PID 2848 wrote to memory of 2120 2848 Utsysc.exe 37 PID 2848 wrote to memory of 2120 2848 Utsysc.exe 37 PID 2848 wrote to memory of 2120 2848 Utsysc.exe 37 PID 2848 wrote to memory of 2120 2848 Utsysc.exe 37 PID 2848 wrote to memory of 2120 2848 Utsysc.exe 37 PID 2848 wrote to memory of 2120 2848 Utsysc.exe 37 PID 2120 wrote to memory of 2296 2120 rundll32.exe 38 PID 2120 wrote to memory of 2296 2120 rundll32.exe 38 PID 2120 wrote to memory of 2296 2120 rundll32.exe 38 PID 2120 wrote to memory of 2296 2120 rundll32.exe 38 PID 2296 wrote to memory of 2320 2296 rundll32.exe 39 PID 2296 wrote to memory of 2320 2296 rundll32.exe 39 PID 2296 wrote to memory of 2320 2296 rundll32.exe 39 PID 2296 wrote to memory of 1184 2296 rundll32.exe 41 PID 2296 wrote to memory of 1184 2296 rundll32.exe 41 PID 2296 wrote to memory of 1184 2296 rundll32.exe 41 PID 2848 wrote to memory of 2456 2848 Utsysc.exe 44 PID 2848 wrote to memory of 2456 2848 Utsysc.exe 44 PID 2848 wrote to memory of 2456 2848 Utsysc.exe 44 PID 2848 wrote to memory of 2456 2848 Utsysc.exe 44 PID 2848 wrote to memory of 2456 2848 Utsysc.exe 44 PID 2848 wrote to memory of 2456 2848 Utsysc.exe 44 PID 2848 wrote to memory of 2456 2848 Utsysc.exe 44 PID 1096 wrote to memory of 2844 1096 taskeng.exe 46 PID 1096 wrote to memory of 2844 1096 taskeng.exe 46 PID 1096 wrote to memory of 2844 1096 taskeng.exe 46 PID 1096 wrote to memory of 2844 1096 taskeng.exe 46
Processes
-
C:\Users\Admin\AppData\Local\Temp\ama.exe"C:\Users\Admin\AppData\Local\Temp\ama.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:760 -
C:\Users\Admin\AppData\Local\Temp\4fdb51ccdc\Utsysc.exe"C:\Users\Admin\AppData\Local\Temp\4fdb51ccdc\Utsysc.exe"2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2848 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN Utsysc.exe /TR "C:\Users\Admin\AppData\Local\Temp\4fdb51ccdc\Utsysc.exe" /F3⤵
- Creates scheduled task(s)
PID:2888
-
-
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\80c6bf70bf3f8f\cred64.dll, Main3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2120 -
C:\Windows\system32\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\80c6bf70bf3f8f\cred64.dll, Main4⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2296 -
C:\Windows\system32\netsh.exenetsh wlan show profiles5⤵PID:2320
-
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command Compress-Archive -Path 'C:\Users\Admin\AppData\Local\Temp\_Files_\' -DestinationPath 'C:\Users\Admin\AppData\Local\Temp\427588347149_Desktop.zip' -CompressionLevel Optimal5⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1184
-
-
-
-
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\80c6bf70bf3f8f\clip64.dll, Main3⤵
- Blocklisted process makes network request
- Loads dropped DLL
PID:2456
-
-
-
C:\Windows\system32\taskeng.exetaskeng.exe {9C03E0DB-607E-460B-804D-5D0A89805326} S-1-5-21-3427588347-1492276948-3422228430-1000:QVMRJQQO\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:1096 -
C:\Users\Admin\AppData\Local\Temp\4fdb51ccdc\Utsysc.exeC:\Users\Admin\AppData\Local\Temp\4fdb51ccdc\Utsysc.exe2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:1652
-
-
C:\Users\Admin\AppData\Local\Temp\4fdb51ccdc\Utsysc.exeC:\Users\Admin\AppData\Local\Temp\4fdb51ccdc\Utsysc.exe2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:2844
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\427588347149
- Size 63KB
- SHA256 487b56f799ad47bdc2e206308976ed652bd00df1d87a08e472dffc5e586cab6d
- MD5 13b344e5eddcc2e94f7406f202892d1f
- SHA1 57613c38b1def62740d19c860c8d7585b6760299
- SHA512 860545763e9a64b2df55caad291f4badb900f1be549cf5805f96634aea7268d31923a1db183e4ab0a4c572b48c85d974c097e92bc382da2c6daf0c345321d99a
- SSDEEP 1536:ssHkqHBrqCRiL2lhF+aDyTC7rU4dFkWvm14YoaQGAVqBgaa13aX:3YCsSlCTmDdFE1gGAVqBgaB
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\4fdb51ccdc\Utsysc.exe
- Size 4.2MB
- SHA256 7067efc25c133206570865eb8e8063d59894e5a3c457e287ca050d6fc3d182d4
- MD5 85063be1269280d47cd7a92ac929e8d7
- SHA1 263410e5468c34b22002ddd6c38c0edec54c5130
- SHA512 68f3a7be4d89fb4a2d09163c5d90f60c9036b3329f9ae5a718a17611b8105eee35d87b4ed598a44d1933f761952eaf60ea3f9c85f8da0cf4ed42ffc0653c69db
- SSDEEP 98304:aXQL86ZtG2fZyxobYPe9qVg8xhctOiJbA/N5NOL9L+xBgq:aXCU2fZWCYPe9uhg8iG2R
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\4fdb51ccdc\Utsysc.exe
- Size 1.4MB
- SHA256 2f839d96a67181574dc8c8b8a1ed1036eb5a7e3916c9abe1441e9440a5af4a27
- MD5 f646f6a209fa09d0c2038c07d8578d17
- SHA1 952a37ffc08f4e6bce35711bbd75e13439237eb2
- SHA512 c85f34ffe3ae36e939a4c855cc43d2451c0d447b1100d6756a0743e1e3b59aa1f6a949834139fa613e1b444f3a07c789a482101f80a6e637cdaa0e83fe44c975
- SSDEEP 24576:YHt5bPOhulN+RDd0X/+Hay86XRKEQnYPWD4tkKWLqN0xObVijQRyvZoMUzh2q:UDPlNg0X/YL86XUai4tSL2jbV3yxoMUN
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\4fdb51ccdc\Utsysc.exe
- Size 1.1MB
- SHA256 d40a199c17b49996b71c5edc51e3d00953069cdb3b70ad9bfcd729ba96a4342d
- MD5 b81c3a2d4e44381770bcb9669aa9e1ad
- SHA1 a7321b24cedc4942e6a779bb31220f7f10eee9f3
- SHA512 56e1a9ff2ddaaaaae427369ce323b4c707976ad36388c546d8286629169aaa8f72312ee597e24c4c53f1c43b90657406ae21ccae3b999f0a79d2d06da90b4d36
- SSDEEP 24576:YHt5bPOhulN+RDd0X/+Hay86XRKEQnYPWD4tkKWLqN0xObViR:UDPlNg0X/YL86XUai4tSL2jbVK
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\4fdb51ccdc\Utsysc.exe
- Size 1.6MB
- SHA256 38f57da718c13b534d27b51a630f57e5d49de0a3e0ea77faf14b2645a29b65d0
- MD5 61c21029149798489e5323c7f6482939
- SHA1 9300a39d7676557847edceb8b2aabb22f04f26c4
- SHA512 4938b80364dfbc6fbc0a2fef9a11e9150dcccbf235d161b4140ef78574e6edd6889729582afb29f656d930b78d10bb2a2731d5d14bfc6c21367f086beae0d204
- SSDEEP 49152:UDPlNg0X/YL86XUai4tSL2jbV3yxoMUY3/zd+:aXQL86ZtG2fZyxobYPs
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\80c6bf70bf3f8f\clip64.dll
- Size 102KB
- SHA256 f5d35a2366cf13312a30c9384f1ac30d9dc9ced46fa6b1b9c2d0621493cc2495
- MD5 c06513af505f65393b4ebcd2a11a2ee4
- SHA1 6e9e8a6b93fc9afbcc781790881d821b0bfb0821
- SHA512 b90b8dc0571b2dde83c5ceaa4f12f203973bc2049663c0a840fa20a900bc7018f1f392f10273a607e816ccaf8a2b4f70bbc30b354437a2c9aecf5626b7c0a5ce
- SSDEEP 3072:ewTxt8T+Mz7G2MosmfNuQR/SrT7BUEYW0Z:eQ7R0PseNuQREmW0Z
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\80c6bf70bf3f8f\cred64.dll
- Size 1.2MB
- SHA256 48c4c53425a0ee02d48f3eab2b4da3b6ed24d6d5bc45dea783e43e32b9752931
- MD5 38d922b1364ecc07f1a933b7acb20de4
- SHA1 82a3d4f9cf3502da8710c07f9b7b447b79519216
- SHA512 cb1ca40afc5ad7828c9ef79c8029e76ec351bbbf6697ab1ec6dd9fe7aa5273028cf9d711a9babb4444ab44266751affbb3de4f4c9572dea102b1a04e95f0d315
- SSDEEP 24576:sBWK58Kl3nZZPCQVQHX+sMoCRVTzfolqaA:El3nZEwQufZzQ8
- MD5 SHA1 SHA512 SSDEEP
- Path \Users\Admin\AppData\Local\Temp\4fdb51ccdc\Utsysc.exe
- Size 1.6MB
- SHA256 d65f662c6382edb8c093bb3f087dac6c309d8895517c8e8083fe76abc691a11a
- MD5 c34e662472f07d7fc4cdbd03c89d1c2a
- SHA1 087bfad46f4820fa1a09b13d2dfa9c35bc820e77
- SHA512 ae153e754a3e9b1f70dbc200ca3609a267276b58074bbeacd816eef2cb023fdc4c1001053b94ce20d62344f0403022cbb5e8138a0b08b7a46dc70822ffabbfc2
- SSDEEP 49152:UDPlNg0X/YL86XUai4tSL2jbV3yxoMUY3/zH:aXQL86ZtG2fZyxobYPr
- MD5 SHA1 SHA512 SSDEEP
- Path \Users\Admin\AppData\Local\Temp\4fdb51ccdc\Utsysc.exe
- Size 1.9MB
- SHA256 9d3aee04fec0792decbc91384c948aaa13cdc68a150840eb0d920beb70458ced
- MD5 7cd62a2ff211115cdb94784f200cf607
- SHA1 90cbce22a19d7501cf04f601439d63efa9bf4f6e
- SHA512 8c13d833986253165798ac19116222ab6a94b9034ce8d603f9e71ed44bc408fa22a1439ee3e74db3f3ec5906f3699d7d108d33383783ce0540f3efa23400ee69
- SSDEEP 49152:UDPlNg0X/YL86XUai4tSL2jbV3yxoMUY3/zdY3EUnq9oUzEK7:aXQL86ZtG2fZyxobYPe9qVgc
- MD5 SHA1 SHA512 SSDEEP