Analysis
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max time kernel
141s -
max time network
146s -
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, 23:39
Behavioral task
behavioral1
Sample
7af52ce279826e145363f0bb135dfc2737b1ac7394afae637eda3e3009a6a661.exe
Resource
win10-20231129-en
General
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Target
7af52ce279826e145363f0bb135dfc2737b1ac7394afae637eda3e3009a6a661.exe
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Size
1.6MB
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MD5
e3b774d8abf1b542c3963293f56b767d
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SHA1
514025bf4db4faab0d4d59c270dd4de2ec50e8cf
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SHA256
7af52ce279826e145363f0bb135dfc2737b1ac7394afae637eda3e3009a6a661
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SHA512
6a3289ea9fc1e89bf67122004f76c8fa0d9e6b01ce14559678069648be7422ee90c72be65201c853fed96764171afaecfa6f0e8355c495d745716858d74944a7
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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 7af52ce279826e145363f0bb135dfc2737b1ac7394afae637eda3e3009a6a661.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-1-5-21-3426238547-133202173-2522127025-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 7af52ce279826e145363f0bb135dfc2737b1ac7394afae637eda3e3009a6a661.exe Key opened \REGISTRY\USER\S-1-5-21-3426238547-133202173-2522127025-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 7af52ce279826e145363f0bb135dfc2737b1ac7394afae637eda3e3009a6a661.exe Key opened \REGISTRY\USER\S-1-5-21-3426238547-133202173-2522127025-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 7af52ce279826e145363f0bb135dfc2737b1ac7394afae637eda3e3009a6a661.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3426238547-133202173-2522127025-1000\Software\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" 7af52ce279826e145363f0bb135dfc2737b1ac7394afae637eda3e3009a6a661.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 7af52ce279826e145363f0bb135dfc2737b1ac7394afae637eda3e3009a6a661.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini 7af52ce279826e145363f0bb135dfc2737b1ac7394afae637eda3e3009a6a661.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol 7af52ce279826e145363f0bb135dfc2737b1ac7394afae637eda3e3009a6a661.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI 7af52ce279826e145363f0bb135dfc2737b1ac7394afae637eda3e3009a6a661.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 312 3376 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 7af52ce279826e145363f0bb135dfc2737b1ac7394afae637eda3e3009a6a661.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 7af52ce279826e145363f0bb135dfc2737b1ac7394afae637eda3e3009a6a661.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 4972 schtasks.exe 1944 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3376 7af52ce279826e145363f0bb135dfc2737b1ac7394afae637eda3e3009a6a661.exe 3376 7af52ce279826e145363f0bb135dfc2737b1ac7394afae637eda3e3009a6a661.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3376 wrote to memory of 4972 3376 7af52ce279826e145363f0bb135dfc2737b1ac7394afae637eda3e3009a6a661.exe 75 PID 3376 wrote to memory of 4972 3376 7af52ce279826e145363f0bb135dfc2737b1ac7394afae637eda3e3009a6a661.exe 75 PID 3376 wrote to memory of 4972 3376 7af52ce279826e145363f0bb135dfc2737b1ac7394afae637eda3e3009a6a661.exe 75 PID 3376 wrote to memory of 1944 3376 7af52ce279826e145363f0bb135dfc2737b1ac7394afae637eda3e3009a6a661.exe 79 PID 3376 wrote to memory of 1944 3376 7af52ce279826e145363f0bb135dfc2737b1ac7394afae637eda3e3009a6a661.exe 79 PID 3376 wrote to memory of 1944 3376 7af52ce279826e145363f0bb135dfc2737b1ac7394afae637eda3e3009a6a661.exe 79 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3426238547-133202173-2522127025-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 7af52ce279826e145363f0bb135dfc2737b1ac7394afae637eda3e3009a6a661.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3426238547-133202173-2522127025-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 7af52ce279826e145363f0bb135dfc2737b1ac7394afae637eda3e3009a6a661.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\7af52ce279826e145363f0bb135dfc2737b1ac7394afae637eda3e3009a6a661.exe"C:\Users\Admin\AppData\Local\Temp\7af52ce279826e145363f0bb135dfc2737b1ac7394afae637eda3e3009a6a661.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:3376 -
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:4972
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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:1944
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3376 -s 15642⤵
- Program crash
PID:312
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:2848
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\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s fhsvc1⤵PID:4280
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.6MB
MD5e3b774d8abf1b542c3963293f56b767d
SHA1514025bf4db4faab0d4d59c270dd4de2ec50e8cf
SHA2567af52ce279826e145363f0bb135dfc2737b1ac7394afae637eda3e3009a6a661
SHA5126a3289ea9fc1e89bf67122004f76c8fa0d9e6b01ce14559678069648be7422ee90c72be65201c853fed96764171afaecfa6f0e8355c495d745716858d74944a7
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Filesize
3KB
MD56eaa553285d3d26b9f7ffc502976cb3e
SHA1c538f030c15f0f6388a0660d0a274ef3fa072e76
SHA2563bcf31742f723d5feeaec49e224aa3bfb3940bfd1ca55aa264da9d733d5c1915
SHA512a22e7a2033d29ccebe3e7ce1155acbfe15fb94ca26e91b2fd0c5a1591bf1cd9d87ab3f19e422ff955462e9d4beec59a7c5c25a5f7e954b5c547a2deae80804f1
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Filesize
92KB
MD58e8e7137325b5aa4e1206f338a7ccde7
SHA123a2d46d2812f664d8fff942d493e85afe5f6a27
SHA256bbbd94e3e65b0cf446d3f651f1a557e479c2adc8c0c955a18addd89fcd7ffe25
SHA5121512bc6ad27b5b794d44b2599ace04a325b32726a1c96e2f8a6f75d55c494e65a4cdd1ea241027d693cd54dc049ad4a23b2147bb1a49450b7949cc71dba06233