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, 21:37
Behavioral task
behavioral1
Sample
034bdef2d90e950953f063d4a5b7535a4fdfba1f235fc1e5775e80777d3cf9e0.exe
Resource
win10-20231129-en
General
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Target
034bdef2d90e950953f063d4a5b7535a4fdfba1f235fc1e5775e80777d3cf9e0.exe
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Size
1.6MB
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MD5
734da77802d0e2bef983e47048494baf
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SHA1
fd39c42205d7b36a956c16e663132b13d33f8d9f
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SHA256
034bdef2d90e950953f063d4a5b7535a4fdfba1f235fc1e5775e80777d3cf9e0
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SHA512
7cd10ad8274767c8cc01d79e5bc23a8773efee15edb23814bf966d97fb15d0ca3a071208dadaabf75d3e6c6c671efc11c289fa1d40a32df51bdd5658d020e47a
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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 034bdef2d90e950953f063d4a5b7535a4fdfba1f235fc1e5775e80777d3cf9e0.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 034bdef2d90e950953f063d4a5b7535a4fdfba1f235fc1e5775e80777d3cf9e0.exe Key opened \REGISTRY\USER\S-1-5-21-3171942101-2809460380-3727589934-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 034bdef2d90e950953f063d4a5b7535a4fdfba1f235fc1e5775e80777d3cf9e0.exe Key opened \REGISTRY\USER\S-1-5-21-3171942101-2809460380-3727589934-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 034bdef2d90e950953f063d4a5b7535a4fdfba1f235fc1e5775e80777d3cf9e0.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" 034bdef2d90e950953f063d4a5b7535a4fdfba1f235fc1e5775e80777d3cf9e0.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 opened for modification C:\Windows\System32\GroupPolicy 034bdef2d90e950953f063d4a5b7535a4fdfba1f235fc1e5775e80777d3cf9e0.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini 034bdef2d90e950953f063d4a5b7535a4fdfba1f235fc1e5775e80777d3cf9e0.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol 034bdef2d90e950953f063d4a5b7535a4fdfba1f235fc1e5775e80777d3cf9e0.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI 034bdef2d90e950953f063d4a5b7535a4fdfba1f235fc1e5775e80777d3cf9e0.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 3356 3584 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 034bdef2d90e950953f063d4a5b7535a4fdfba1f235fc1e5775e80777d3cf9e0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 034bdef2d90e950953f063d4a5b7535a4fdfba1f235fc1e5775e80777d3cf9e0.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 2800 schtasks.exe 3276 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3584 034bdef2d90e950953f063d4a5b7535a4fdfba1f235fc1e5775e80777d3cf9e0.exe 3584 034bdef2d90e950953f063d4a5b7535a4fdfba1f235fc1e5775e80777d3cf9e0.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3584 wrote to memory of 2800 3584 034bdef2d90e950953f063d4a5b7535a4fdfba1f235fc1e5775e80777d3cf9e0.exe 74 PID 3584 wrote to memory of 2800 3584 034bdef2d90e950953f063d4a5b7535a4fdfba1f235fc1e5775e80777d3cf9e0.exe 74 PID 3584 wrote to memory of 2800 3584 034bdef2d90e950953f063d4a5b7535a4fdfba1f235fc1e5775e80777d3cf9e0.exe 74 PID 3584 wrote to memory of 3276 3584 034bdef2d90e950953f063d4a5b7535a4fdfba1f235fc1e5775e80777d3cf9e0.exe 78 PID 3584 wrote to memory of 3276 3584 034bdef2d90e950953f063d4a5b7535a4fdfba1f235fc1e5775e80777d3cf9e0.exe 78 PID 3584 wrote to memory of 3276 3584 034bdef2d90e950953f063d4a5b7535a4fdfba1f235fc1e5775e80777d3cf9e0.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 034bdef2d90e950953f063d4a5b7535a4fdfba1f235fc1e5775e80777d3cf9e0.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 034bdef2d90e950953f063d4a5b7535a4fdfba1f235fc1e5775e80777d3cf9e0.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\034bdef2d90e950953f063d4a5b7535a4fdfba1f235fc1e5775e80777d3cf9e0.exe"C:\Users\Admin\AppData\Local\Temp\034bdef2d90e950953f063d4a5b7535a4fdfba1f235fc1e5775e80777d3cf9e0.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:3584 -
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:2800
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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:3276
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3584 -s 16402⤵
- Program crash
PID:3356
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:1572
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\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s fhsvc1⤵PID:1520
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.6MB
MD5734da77802d0e2bef983e47048494baf
SHA1fd39c42205d7b36a956c16e663132b13d33f8d9f
SHA256034bdef2d90e950953f063d4a5b7535a4fdfba1f235fc1e5775e80777d3cf9e0
SHA5127cd10ad8274767c8cc01d79e5bc23a8773efee15edb23814bf966d97fb15d0ca3a071208dadaabf75d3e6c6c671efc11c289fa1d40a32df51bdd5658d020e47a
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Filesize
3KB
MD51ff776751f277fa27b8ee41114280895
SHA1610f9bf179139f692d380c78e537b8e62177d446
SHA256d4f6c8dbd1baacafe8ae720456b7cbb49081325aa49a4859c7d5c455e461e9f7
SHA512d9cc348439634e4adfd59c0448b29d5215502326f525090ae1ee2a57dd5e9d58c19c36e7c39938e348b43efe120115612efef901e41a0b2d8aea89eb34b6c563
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Filesize
92KB
MD5d540e45d4e0edb6aab5ed14cc52f1fa5
SHA10c9279b204416dfa86ee22993bd3325b5bc762b1
SHA256ddd7cbb13ec9dca8859d1a0f54d3f326c0097a8d2809636d96d2e4d9cfa86153
SHA5123dc3b50b4948f522f4746a0ef63cdc40995dad3a3ac901b277a37296a33eee2977121f7aa529d9ef7f0cb878c6e15fac6c5570f1e5f73e73b5379633bd0caf9f