Analysis
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max time kernel
120s -
max time network
113s -
platform
windows10-1703_x64 -
resource
win10-20231129-en -
resource tags
arch:x64arch:x86image:win10-20231129-enlocale:en-usos:windows10-1703-x64system -
submitted
13/12/2023, 21:44
Behavioral task
behavioral1
Sample
296a5df26e552fd7b3ba812c8a9c90af146ade12b32cdd4dc5e35241a545b923.exe
Resource
win10-20231129-en
General
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Target
296a5df26e552fd7b3ba812c8a9c90af146ade12b32cdd4dc5e35241a545b923.exe
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Size
1.6MB
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MD5
a106d7e5d8b59c2e613ceba4346cd0da
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SHA1
1be88d3bb6d1fded5ede00efd50df9a5098ae90b
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SHA256
296a5df26e552fd7b3ba812c8a9c90af146ade12b32cdd4dc5e35241a545b923
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SHA512
d922870fac6a2f4adbcb0b3bb01b636819d1dcf1202ecbac7a90faef286b5c76df8efd10d532698d08b9dcc7929da4e10910262b0a851d4f0e6793a85cbb0d25
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SSDEEP
49152:80ceOGgUYYEmluRKYoFh4kGWusbQnIyDi1E1uonTKi/OjCCNG:1XOGgUYC4RKXFhrusbaDkE1u
Malware Config
Signatures
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Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\FANBooster131.lnk 296a5df26e552fd7b3ba812c8a9c90af146ade12b32cdd4dc5e35241a545b923.exe -
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
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3171942101-2809460380-3727589934-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 296a5df26e552fd7b3ba812c8a9c90af146ade12b32cdd4dc5e35241a545b923.exe Key opened \REGISTRY\USER\S-1-5-21-3171942101-2809460380-3727589934-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 296a5df26e552fd7b3ba812c8a9c90af146ade12b32cdd4dc5e35241a545b923.exe Key opened \REGISTRY\USER\S-1-5-21-3171942101-2809460380-3727589934-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 296a5df26e552fd7b3ba812c8a9c90af146ade12b32cdd4dc5e35241a545b923.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3171942101-2809460380-3727589934-1000\Software\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" 296a5df26e552fd7b3ba812c8a9c90af146ade12b32cdd4dc5e35241a545b923.exe -
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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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 4 ipinfo.io 5 ipinfo.io -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\System32\GroupPolicy 296a5df26e552fd7b3ba812c8a9c90af146ade12b32cdd4dc5e35241a545b923.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini 296a5df26e552fd7b3ba812c8a9c90af146ade12b32cdd4dc5e35241a545b923.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol 296a5df26e552fd7b3ba812c8a9c90af146ade12b32cdd4dc5e35241a545b923.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI 296a5df26e552fd7b3ba812c8a9c90af146ade12b32cdd4dc5e35241a545b923.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 3804 2660 WerFault.exe 73 -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 296a5df26e552fd7b3ba812c8a9c90af146ade12b32cdd4dc5e35241a545b923.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 296a5df26e552fd7b3ba812c8a9c90af146ade12b32cdd4dc5e35241a545b923.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4328 schtasks.exe 1456 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2660 296a5df26e552fd7b3ba812c8a9c90af146ade12b32cdd4dc5e35241a545b923.exe 2660 296a5df26e552fd7b3ba812c8a9c90af146ade12b32cdd4dc5e35241a545b923.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2660 wrote to memory of 1456 2660 296a5df26e552fd7b3ba812c8a9c90af146ade12b32cdd4dc5e35241a545b923.exe 74 PID 2660 wrote to memory of 1456 2660 296a5df26e552fd7b3ba812c8a9c90af146ade12b32cdd4dc5e35241a545b923.exe 74 PID 2660 wrote to memory of 1456 2660 296a5df26e552fd7b3ba812c8a9c90af146ade12b32cdd4dc5e35241a545b923.exe 74 PID 2660 wrote to memory of 4328 2660 296a5df26e552fd7b3ba812c8a9c90af146ade12b32cdd4dc5e35241a545b923.exe 78 PID 2660 wrote to memory of 4328 2660 296a5df26e552fd7b3ba812c8a9c90af146ade12b32cdd4dc5e35241a545b923.exe 78 PID 2660 wrote to memory of 4328 2660 296a5df26e552fd7b3ba812c8a9c90af146ade12b32cdd4dc5e35241a545b923.exe 78 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3171942101-2809460380-3727589934-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 296a5df26e552fd7b3ba812c8a9c90af146ade12b32cdd4dc5e35241a545b923.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3171942101-2809460380-3727589934-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 296a5df26e552fd7b3ba812c8a9c90af146ade12b32cdd4dc5e35241a545b923.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\296a5df26e552fd7b3ba812c8a9c90af146ade12b32cdd4dc5e35241a545b923.exe"C:\Users\Admin\AppData\Local\Temp\296a5df26e552fd7b3ba812c8a9c90af146ade12b32cdd4dc5e35241a545b923.exe"1⤵
- Drops startup file
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Drops file in System32 directory
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:2660 -
C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 HR" /sc HOURLY /rl HIGHEST2⤵
- Creates scheduled task(s)
PID:1456
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 LG" /sc ONLOGON /rl HIGHEST2⤵
- Creates scheduled task(s)
PID:4328
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2660 -s 15642⤵
- Program crash
PID:3804
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:2760
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\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s fhsvc1⤵PID:2688
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.6MB
MD5a106d7e5d8b59c2e613ceba4346cd0da
SHA11be88d3bb6d1fded5ede00efd50df9a5098ae90b
SHA256296a5df26e552fd7b3ba812c8a9c90af146ade12b32cdd4dc5e35241a545b923
SHA512d922870fac6a2f4adbcb0b3bb01b636819d1dcf1202ecbac7a90faef286b5c76df8efd10d532698d08b9dcc7929da4e10910262b0a851d4f0e6793a85cbb0d25
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Filesize
3KB
MD55eda42a8dd2f3273b4fdca35d1a2625d
SHA177923472ce3e5802e42fa6052e159a0cedb6c534
SHA256468d843c29619f3cd7bc7343b6f0f9eaa05ae41500d6f05c86a52be3d4272e1e
SHA5123640c3e2d8d651dd8d59b3177a145f7f2c820ddc7bc88ded6c4c53f90acdf6031207dba4ee2560caf8d92e59f4425a7068777210c3676128ce3d4213cc5039da
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Filesize
92KB
MD5d540e45d4e0edb6aab5ed14cc52f1fa5
SHA10c9279b204416dfa86ee22993bd3325b5bc762b1
SHA256ddd7cbb13ec9dca8859d1a0f54d3f326c0097a8d2809636d96d2e4d9cfa86153
SHA5123dc3b50b4948f522f4746a0ef63cdc40995dad3a3ac901b277a37296a33eee2977121f7aa529d9ef7f0cb878c6e15fac6c5570f1e5f73e73b5379633bd0caf9f