Analysis
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max time kernel
121s -
max time network
121s -
platform
windows10_x64 -
resource
win10-en-20211014 -
submitted
25-10-2021 13:36
Static task
static1
Behavioral task
behavioral1
Sample
OPEN_2021-10-25_09-58.exe
Resource
win7-en-20210920
Behavioral task
behavioral2
Sample
OPEN_2021-10-25_09-58.exe
Resource
win10-en-20211014
General
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Target
OPEN_2021-10-25_09-58.exe
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Size
265KB
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MD5
e0b96fab2fd0e0ccf4c67e7af0b31add
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SHA1
ba910050f8b760703634cc7799ab3e1ee4206795
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SHA256
46a0aee0584478368d7d0f5d07941508bfab7756d3ce0f8d4317096b62c111cd
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SHA512
e6276f6882fb70f78c94407c9c2b64ef4782b75b8fc20b0ec8fff9ee5e5e72594acee34ac5f8c6a2ed49255b4fe76dce7d22237e51f1932462d036c894499543
Malware Config
Extracted
azorult
http://37.0.10.118/xsaz/index.php
Signatures
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Azorult
An information stealer that was first discovered in 2016, targeting browsing history and passwords.
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suricata: ET MALWARE AZORult v3.3 Server Response M3
suricata: ET MALWARE AZORult v3.3 Server Response M3
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suricata: ET MALWARE Win32/AZORult V3.3 Client Checkin M18
suricata: ET MALWARE Win32/AZORult V3.3 Client Checkin M18
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Loads dropped DLL 4 IoCs
Processes:
OPEN_2021-10-25_09-58.exepid process 2692 OPEN_2021-10-25_09-58.exe 2692 OPEN_2021-10-25_09-58.exe 2692 OPEN_2021-10-25_09-58.exe 2692 OPEN_2021-10-25_09-58.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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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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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
OPEN_2021-10-25_09-58.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook OPEN_2021-10-25_09-58.exe Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook OPEN_2021-10-25_09-58.exe Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook OPEN_2021-10-25_09-58.exe -
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
OPEN_2021-10-25_09-58.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 OPEN_2021-10-25_09-58.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString OPEN_2021-10-25_09-58.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 1372 timeout.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
OPEN_2021-10-25_09-58.exepid process 2692 OPEN_2021-10-25_09-58.exe 2692 OPEN_2021-10-25_09-58.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
OPEN_2021-10-25_09-58.execmd.exedescription pid process target process PID 2692 wrote to memory of 2312 2692 OPEN_2021-10-25_09-58.exe cmd.exe PID 2692 wrote to memory of 2312 2692 OPEN_2021-10-25_09-58.exe cmd.exe PID 2692 wrote to memory of 2312 2692 OPEN_2021-10-25_09-58.exe cmd.exe PID 2312 wrote to memory of 1372 2312 cmd.exe timeout.exe PID 2312 wrote to memory of 1372 2312 cmd.exe timeout.exe PID 2312 wrote to memory of 1372 2312 cmd.exe timeout.exe -
outlook_office_path 1 IoCs
Processes:
OPEN_2021-10-25_09-58.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook OPEN_2021-10-25_09-58.exe -
outlook_win_path 1 IoCs
Processes:
OPEN_2021-10-25_09-58.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook OPEN_2021-10-25_09-58.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\OPEN_2021-10-25_09-58.exe"C:\Users\Admin\AppData\Local\Temp\OPEN_2021-10-25_09-58.exe"1⤵
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c C:\Windows\system32\timeout.exe 3 & del "OPEN_2021-10-25_09-58.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exeC:\Windows\system32\timeout.exe 33⤵
- Delays execution with timeout.exe
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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\Users\Admin\AppData\Local\Temp\1508CF4E\mozglue.dllMD5
9e682f1eb98a9d41468fc3e50f907635
SHA185e0ceca36f657ddf6547aa0744f0855a27527ee
SHA256830533bb569594ec2f7c07896b90225006b90a9af108f49d6fb6bebd02428b2d
SHA512230230722d61ac1089fabf3f2decfa04f9296498f8e2a2a49b1527797dca67b5a11ab8656f04087acadf873fa8976400d57c77c404eba4aff89d92b9986f32ed
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\Users\Admin\AppData\Local\Temp\1508CF4E\msvcp140.dllMD5
109f0f02fd37c84bfc7508d4227d7ed5
SHA1ef7420141bb15ac334d3964082361a460bfdb975
SHA256334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4
SHA51246eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39
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\Users\Admin\AppData\Local\Temp\1508CF4E\nss3.dllMD5
556ea09421a0f74d31c4c0a89a70dc23
SHA1f739ba9b548ee64b13eb434a3130406d23f836e3
SHA256f0e6210d4a0d48c7908d8d1c270449c91eb4523e312a61256833bfeaf699abfb
SHA5122481fc80dffa8922569552c3c3ebaef8d0341b80427447a14b291ec39ea62ab9c05a75e85eef5ea7f857488cab1463c18586f9b076e2958c5a314e459045ede2
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\Users\Admin\AppData\Local\Temp\1508CF4E\vcruntime140.dllMD5
7587bf9cb4147022cd5681b015183046
SHA1f2106306a8f6f0da5afb7fc765cfa0757ad5a628
SHA256c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d
SHA5120b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f
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memory/1372-123-0x0000000000000000-mapping.dmp
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memory/2312-122-0x0000000000000000-mapping.dmp
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memory/2692-115-0x00000000011B1000-0x00000000011C3000-memory.dmpFilesize
72KB
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memory/2692-116-0x00000000001C0000-0x00000000001DD000-memory.dmpFilesize
116KB
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memory/2692-117-0x0000000000400000-0x0000000001013000-memory.dmpFilesize
12.1MB