Analysis
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max time kernel
139s -
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
14/12/2023, 00:10
Behavioral task
behavioral1
Sample
0166d0371a9ea7a89566ee13137779bab2e125a544dbb9e3fab8913e0ed6c28b.exe
Resource
win10v2004-20231130-en
General
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Target
0166d0371a9ea7a89566ee13137779bab2e125a544dbb9e3fab8913e0ed6c28b.exe
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Size
1.6MB
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MD5
0e19a17ec0a08f56bbe93cd19ed93fe8
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SHA1
5eb98e8a440857ca660d5adea49519ad3a77d62f
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SHA256
0166d0371a9ea7a89566ee13137779bab2e125a544dbb9e3fab8913e0ed6c28b
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SHA512
bd2e442f09c2f944e6ccb6c7e47a69983ab7e54911e8ab515055b8c99dbdf3e0c925151fe409b5f1b4b31bbc90aa36abed0f8a9cb75ba2cb3aa38585e4e10dde
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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 0166d0371a9ea7a89566ee13137779bab2e125a544dbb9e3fab8913e0ed6c28b.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-1-5-21-1791582586-1997866593-3795608343-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 0166d0371a9ea7a89566ee13137779bab2e125a544dbb9e3fab8913e0ed6c28b.exe Key opened \REGISTRY\USER\S-1-5-21-1791582586-1997866593-3795608343-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 0166d0371a9ea7a89566ee13137779bab2e125a544dbb9e3fab8913e0ed6c28b.exe Key opened \REGISTRY\USER\S-1-5-21-1791582586-1997866593-3795608343-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 0166d0371a9ea7a89566ee13137779bab2e125a544dbb9e3fab8913e0ed6c28b.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1791582586-1997866593-3795608343-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" 0166d0371a9ea7a89566ee13137779bab2e125a544dbb9e3fab8913e0ed6c28b.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 13 ipinfo.io 15 ipinfo.io -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\System32\GroupPolicy 0166d0371a9ea7a89566ee13137779bab2e125a544dbb9e3fab8913e0ed6c28b.exe File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini 0166d0371a9ea7a89566ee13137779bab2e125a544dbb9e3fab8913e0ed6c28b.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol 0166d0371a9ea7a89566ee13137779bab2e125a544dbb9e3fab8913e0ed6c28b.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI 0166d0371a9ea7a89566ee13137779bab2e125a544dbb9e3fab8913e0ed6c28b.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 4728 4028 WerFault.exe 57 -
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 0166d0371a9ea7a89566ee13137779bab2e125a544dbb9e3fab8913e0ed6c28b.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 0166d0371a9ea7a89566ee13137779bab2e125a544dbb9e3fab8913e0ed6c28b.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 2244 schtasks.exe 4476 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4028 0166d0371a9ea7a89566ee13137779bab2e125a544dbb9e3fab8913e0ed6c28b.exe 4028 0166d0371a9ea7a89566ee13137779bab2e125a544dbb9e3fab8913e0ed6c28b.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4028 wrote to memory of 2244 4028 0166d0371a9ea7a89566ee13137779bab2e125a544dbb9e3fab8913e0ed6c28b.exe 85 PID 4028 wrote to memory of 2244 4028 0166d0371a9ea7a89566ee13137779bab2e125a544dbb9e3fab8913e0ed6c28b.exe 85 PID 4028 wrote to memory of 2244 4028 0166d0371a9ea7a89566ee13137779bab2e125a544dbb9e3fab8913e0ed6c28b.exe 85 PID 4028 wrote to memory of 4476 4028 0166d0371a9ea7a89566ee13137779bab2e125a544dbb9e3fab8913e0ed6c28b.exe 89 PID 4028 wrote to memory of 4476 4028 0166d0371a9ea7a89566ee13137779bab2e125a544dbb9e3fab8913e0ed6c28b.exe 89 PID 4028 wrote to memory of 4476 4028 0166d0371a9ea7a89566ee13137779bab2e125a544dbb9e3fab8913e0ed6c28b.exe 89 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1791582586-1997866593-3795608343-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 0166d0371a9ea7a89566ee13137779bab2e125a544dbb9e3fab8913e0ed6c28b.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1791582586-1997866593-3795608343-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 0166d0371a9ea7a89566ee13137779bab2e125a544dbb9e3fab8913e0ed6c28b.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\0166d0371a9ea7a89566ee13137779bab2e125a544dbb9e3fab8913e0ed6c28b.exe"C:\Users\Admin\AppData\Local\Temp\0166d0371a9ea7a89566ee13137779bab2e125a544dbb9e3fab8913e0ed6c28b.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:4028 -
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:2244
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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:4476
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4028 -s 17042⤵
- Program crash
PID:4728
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:4428
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc1⤵PID:3624
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4028 -ip 40281⤵PID:4828
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.6MB
MD50e19a17ec0a08f56bbe93cd19ed93fe8
SHA15eb98e8a440857ca660d5adea49519ad3a77d62f
SHA2560166d0371a9ea7a89566ee13137779bab2e125a544dbb9e3fab8913e0ed6c28b
SHA512bd2e442f09c2f944e6ccb6c7e47a69983ab7e54911e8ab515055b8c99dbdf3e0c925151fe409b5f1b4b31bbc90aa36abed0f8a9cb75ba2cb3aa38585e4e10dde
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Filesize
3KB
MD52044888d187833e7dd2becf8b2b1d8f6
SHA1e836a77e8aa9c96e792bc37219fb1a7cb724e280
SHA256dd174f999a632ef051dbb23309b88fad914a3afbd0c798d0ba2c5a798b1c0497
SHA512c8983beca88dd568c3217fa00c821b9ec2926196847ea423a6aeb2d2e3d40015f2489e085042369c874533eab3605f33e3aecfe05b4e95709385cad6c78c8e2d
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Filesize
92KB
MD5506305b81ca2e2c270c8cc550edee2df
SHA1370f5306fde08801c87244eac61f9716c863e8f5
SHA256d14e92ff6924f3a4b2b97a83d3016d84377c0cf34c3e59a87d77cbd7ccbe12f6
SHA512a63b5a7c3f89f642978f27017c3428500e43da3f9f94447b3779c90f4b7844b10727a3795a446de8641e3753925df209eb9cab016f2d941e5863e2c8be0903e8
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Filesize
116KB
MD5f70aa3fa04f0536280f872ad17973c3d
SHA150a7b889329a92de1b272d0ecf5fce87395d3123
SHA2568d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8
SHA51230675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84