Analysis
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max time kernel
149s -
max time network
150s -
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, 21:40
Behavioral task
behavioral1
Sample
c079139a3d67042d01965a5a8cc1ad8bc53eaaec8457745c807c383ce654f06c.exe
Resource
win10-20231129-en
General
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Target
c079139a3d67042d01965a5a8cc1ad8bc53eaaec8457745c807c383ce654f06c.exe
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Size
1.6MB
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MD5
ebf85ce98e1e3cd174dc0b9364924127
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SHA1
5ad8441e71c453ecc272ddd350f336d5de2edf99
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SHA256
c079139a3d67042d01965a5a8cc1ad8bc53eaaec8457745c807c383ce654f06c
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SHA512
e4ea1ece6e6501c582baee273d29cef6b6a7aeab5f5682c351f8cec6c8d8fc4ecec2cd9d8af03e9d3e636e0319b188a0f83a6bb467fd4859afcbccb753485a88
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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 c079139a3d67042d01965a5a8cc1ad8bc53eaaec8457745c807c383ce654f06c.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-1-5-21-3802588206-2855991289-4225012448-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 c079139a3d67042d01965a5a8cc1ad8bc53eaaec8457745c807c383ce654f06c.exe Key opened \REGISTRY\USER\S-1-5-21-3802588206-2855991289-4225012448-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 c079139a3d67042d01965a5a8cc1ad8bc53eaaec8457745c807c383ce654f06c.exe Key opened \REGISTRY\USER\S-1-5-21-3802588206-2855991289-4225012448-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 c079139a3d67042d01965a5a8cc1ad8bc53eaaec8457745c807c383ce654f06c.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3802588206-2855991289-4225012448-1000\Software\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" c079139a3d67042d01965a5a8cc1ad8bc53eaaec8457745c807c383ce654f06c.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 3 ipinfo.io 4 ipinfo.io -
Drops file in System32 directory 4 IoCs
description ioc Process File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol c079139a3d67042d01965a5a8cc1ad8bc53eaaec8457745c807c383ce654f06c.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI c079139a3d67042d01965a5a8cc1ad8bc53eaaec8457745c807c383ce654f06c.exe File opened for modification C:\Windows\System32\GroupPolicy c079139a3d67042d01965a5a8cc1ad8bc53eaaec8457745c807c383ce654f06c.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini c079139a3d67042d01965a5a8cc1ad8bc53eaaec8457745c807c383ce654f06c.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 3764 4208 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 opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 c079139a3d67042d01965a5a8cc1ad8bc53eaaec8457745c807c383ce654f06c.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString c079139a3d67042d01965a5a8cc1ad8bc53eaaec8457745c807c383ce654f06c.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 3624 schtasks.exe 788 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4208 c079139a3d67042d01965a5a8cc1ad8bc53eaaec8457745c807c383ce654f06c.exe 4208 c079139a3d67042d01965a5a8cc1ad8bc53eaaec8457745c807c383ce654f06c.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4208 wrote to memory of 3624 4208 c079139a3d67042d01965a5a8cc1ad8bc53eaaec8457745c807c383ce654f06c.exe 74 PID 4208 wrote to memory of 3624 4208 c079139a3d67042d01965a5a8cc1ad8bc53eaaec8457745c807c383ce654f06c.exe 74 PID 4208 wrote to memory of 3624 4208 c079139a3d67042d01965a5a8cc1ad8bc53eaaec8457745c807c383ce654f06c.exe 74 PID 4208 wrote to memory of 788 4208 c079139a3d67042d01965a5a8cc1ad8bc53eaaec8457745c807c383ce654f06c.exe 78 PID 4208 wrote to memory of 788 4208 c079139a3d67042d01965a5a8cc1ad8bc53eaaec8457745c807c383ce654f06c.exe 78 PID 4208 wrote to memory of 788 4208 c079139a3d67042d01965a5a8cc1ad8bc53eaaec8457745c807c383ce654f06c.exe 78 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3802588206-2855991289-4225012448-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 c079139a3d67042d01965a5a8cc1ad8bc53eaaec8457745c807c383ce654f06c.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3802588206-2855991289-4225012448-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 c079139a3d67042d01965a5a8cc1ad8bc53eaaec8457745c807c383ce654f06c.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c079139a3d67042d01965a5a8cc1ad8bc53eaaec8457745c807c383ce654f06c.exe"C:\Users\Admin\AppData\Local\Temp\c079139a3d67042d01965a5a8cc1ad8bc53eaaec8457745c807c383ce654f06c.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:4208 -
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:3624
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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:788
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4208 -s 15122⤵
- Program crash
PID:3764
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:4572
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\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s fhsvc1⤵PID:860
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.6MB
MD5ebf85ce98e1e3cd174dc0b9364924127
SHA15ad8441e71c453ecc272ddd350f336d5de2edf99
SHA256c079139a3d67042d01965a5a8cc1ad8bc53eaaec8457745c807c383ce654f06c
SHA512e4ea1ece6e6501c582baee273d29cef6b6a7aeab5f5682c351f8cec6c8d8fc4ecec2cd9d8af03e9d3e636e0319b188a0f83a6bb467fd4859afcbccb753485a88
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Filesize
3KB
MD56bf2104b9087f7bd525fac26ae7ef58f
SHA129207882c06acab8e1c7c14d0f8bf60d842ce479
SHA256129caa0400758821862cfa6687a4efd50d8036facb2ebdce31e9c993a79a8b53
SHA5124f81fc6e7f491e1fb0442e471420031b3940439f598b3ff34d1328841741d1abb35314f6bce944a91251cef84c7988d0501ea0ff70d4abf800cc61d00707c678
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Filesize
92KB
MD5982861d9583057c9107636f512d24c82
SHA1b8f0f8e9d07dc653f587912d1aba91bfd8cd9bab
SHA25649bcb23ce630b736c6ff8a08cc8929ac5c1168fd367c9ddfa79c1939efed95d5
SHA51231f616df72551dc1b5732692efd746ec336fb0dfe38dd3a7a2f08c46abb8b6757d9542889f63f63698317a50fc0de65aa0d29cc9ac0115c59486ed7a163c3539