Analysis
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max time kernel
148s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system -
submitted
13/12/2023, 23:20
Behavioral task
behavioral1
Sample
44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e.exe
Resource
win10v2004-20231130-en
General
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Target
44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e.exe
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Size
1.6MB
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MD5
2f4002e56b116aaeab131a8f1d287a0f
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SHA1
658bde9515168748470c63cdcca8406e41932ce5
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SHA256
44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e
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SHA512
0baeec3b2ee16cbce0156e0eb40f3db6989cb801d914e34f895b800b365708aac38a28f15175c9a736e3aa69f92cb5c84d8a46a80478abb6b90fbf0fdc249d73
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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 44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e.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-1-5-21-3936660601-1848837011-2142350499-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e.exe Key opened \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e.exe Key opened \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" 44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e.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 24 ipinfo.io 26 ipinfo.io -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\System32\GroupPolicy 44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini 44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol 44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI 44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e.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 3676 2716 WerFault.exe 87 -
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 44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e.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 1152 schtasks.exe 2308 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2716 44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e.exe 2716 44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2716 wrote to memory of 1152 2716 44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e.exe 88 PID 2716 wrote to memory of 1152 2716 44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e.exe 88 PID 2716 wrote to memory of 1152 2716 44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e.exe 88 PID 2716 wrote to memory of 2308 2716 44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e.exe 92 PID 2716 wrote to memory of 2308 2716 44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e.exe 92 PID 2716 wrote to memory of 2308 2716 44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e.exe 92 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e.exe"C:\Users\Admin\AppData\Local\Temp\44da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e.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:2716 -
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:1152
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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:2308
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2716 -s 17162⤵
- Program crash
PID:3676
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:4916
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc1⤵PID:1644
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2716 -ip 27161⤵PID:1772
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.6MB
MD52f4002e56b116aaeab131a8f1d287a0f
SHA1658bde9515168748470c63cdcca8406e41932ce5
SHA25644da7e26798bf5d15fbd8084026db99ce5a323367724e82886f3d86b35bc244e
SHA5120baeec3b2ee16cbce0156e0eb40f3db6989cb801d914e34f895b800b365708aac38a28f15175c9a736e3aa69f92cb5c84d8a46a80478abb6b90fbf0fdc249d73
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Filesize
3KB
MD507240845224b0f970a8a67ba21db4fa9
SHA1669f4c97034b3e09691ec7ffdce2c8742758d62f
SHA25622ac3ee9312226146cdbaac25bff17b3a731a5a37fbe6b0f5fbdc6380b65bdad
SHA5128ac0a04efb811c7ddf842c16b29ff04b382808c83ea32874d47d720916fed57ae31607c91207f49492c8ab82048c57565790bf5eb74ead760948788602e969e9
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Filesize
92KB
MD59ee081ca0d9c3cd479031e1ff265961b
SHA1a2bfa65a2ddcd529a134ea08efd6965bcd0e5665
SHA2562a260265cd76d10c19658a7db48e7f328aba6df399e28e2e73642d5904dd73b4
SHA5126b9f28e80628042205df78d5393ba53ff9866ee25d92500a806055333f0fe3a93cb1516754b617c42a342d2852cb4f2cd37c849dbfd19bedb71aef5e642c33e6
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Filesize
116KB
MD5f70aa3fa04f0536280f872ad17973c3d
SHA150a7b889329a92de1b272d0ecf5fce87395d3123
SHA2568d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8
SHA51230675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84