Analysis
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max time kernel
125s -
max time network
130s -
platform
windows10-1703_x64 -
resource
win10-20231023-en -
resource tags
arch:x64arch:x86image:win10-20231023-enlocale:en-usos:windows10-1703-x64system -
submitted
13/12/2023, 23:32
Behavioral task
behavioral1
Sample
8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc.exe
Resource
win10-20231023-en
General
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Target
8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc.exe
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Size
1.6MB
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MD5
dd038158781c1d250a98026b61d261d0
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SHA1
5b7ca483b79403d0290ccb9cf1fd296a11fdde5b
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SHA256
8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc
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SHA512
ebfeb415fe3cb866d0da02233a3a523a8c36314ea8a53698ea4a39743e5e99626e261fe5e41032dda27e4617b860600fb7d50d80e0e753b7620bba56463415e5
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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 8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc.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-1-5-21-2184424523-918736138-622003966-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc.exe Key opened \REGISTRY\USER\S-1-5-21-2184424523-918736138-622003966-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc.exe Key opened \REGISTRY\USER\S-1-5-21-2184424523-918736138-622003966-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2184424523-918736138-622003966-1000\Software\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" 8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc.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\GPT.INI 8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc.exe File opened for modification C:\Windows\System32\GroupPolicy 8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini 8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol 8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc.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 4368 2820 WerFault.exe 70 -
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 8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc.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 3136 schtasks.exe 1156 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2820 8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc.exe 2820 8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2820 wrote to memory of 3136 2820 8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc.exe 71 PID 2820 wrote to memory of 3136 2820 8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc.exe 71 PID 2820 wrote to memory of 3136 2820 8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc.exe 71 PID 2820 wrote to memory of 1156 2820 8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc.exe 75 PID 2820 wrote to memory of 1156 2820 8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc.exe 75 PID 2820 wrote to memory of 1156 2820 8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc.exe 75 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2184424523-918736138-622003966-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2184424523-918736138-622003966-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc.exe"C:\Users\Admin\AppData\Local\Temp\8119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc.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:2820 -
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:3136
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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:1156
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2820 -s 15802⤵
- Program crash
PID:4368
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\??\c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s fhsvc1⤵PID:3396
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:4404
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.6MB
MD5dd038158781c1d250a98026b61d261d0
SHA15b7ca483b79403d0290ccb9cf1fd296a11fdde5b
SHA2568119b6577450b97da247def0ce5951d072c447014884b1ad5f6fc32e4e4d26cc
SHA512ebfeb415fe3cb866d0da02233a3a523a8c36314ea8a53698ea4a39743e5e99626e261fe5e41032dda27e4617b860600fb7d50d80e0e753b7620bba56463415e5
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Filesize
3KB
MD5178bd57fdc61eef86bd16e88c4c89776
SHA143e460bd958e44eae97080d95d90e232f25b2e8b
SHA2567cad8f228829c37a4f6d79c6713e421d54fcfee9fbefaaea7df52e7c84bcf15b
SHA512d823e143902f212c1c5d78c67b403b9d93b35c230198b53a2d5d9eec09609e88a7733bb400864a7ce563fa5a30dce3dd63697b1934d3e0f23ae05957a6766d28
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Filesize
92KB
MD590a4e3db168e5bdc6b5e562ce7f41a06
SHA12bf235c33b3395caefc1b9f1a280f83422f94d40
SHA256fdd37b06f981e619d6690edeaa17ba8d86c66cec9331632f3d9922bb2c6eabf5
SHA512e30f0a67bbdc6507ac5babaa5fe1e0db7cde6b62812f6365fe83293e5fbba3f62db43c80c635a43b3b0ffb2e08ac2faf79eff0d3bea8e2aaaca6c55fb0833c0b