Analysis
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max time kernel
141s -
max time network
127s -
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, 23:31
Behavioral task
behavioral1
Sample
1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.exe
Resource
win10v2004-20231130-en
General
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Target
1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.exe
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Size
1.6MB
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MD5
d6549c6dd3281b5b1ff67d9e2bd3c98b
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SHA1
30007f23e0469621a05c00ce27f12ca96f827d5b
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SHA256
1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5
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SHA512
8776b0f84b6b3e49d3fdc6248ca005a669ab350b88a1ca6732cd765c74ee35c3872173fe8313b3603f621207392710b3addca898c7c65fc89461841e5243902f
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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 1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.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-1-5-21-596315103-1488671723-776734015-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.exe Key opened \REGISTRY\USER\S-1-5-21-596315103-1488671723-776734015-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.exe Key opened \REGISTRY\USER\S-1-5-21-596315103-1488671723-776734015-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-596315103-1488671723-776734015-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe" 1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.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 19 ipinfo.io 20 ipinfo.io -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\GroupPolicy\gpt.ini 1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.exe File created C:\Windows\System32\GroupPolicy\Machine\Registry.pol 1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.exe File opened for modification C:\Windows\System32\GroupPolicy\GPT.INI 1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.exe File opened for modification C:\Windows\System32\GroupPolicy 1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.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 3056 2272 WerFault.exe 51 -
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 1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.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 516 schtasks.exe 4572 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2272 1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.exe 2272 1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2272 wrote to memory of 516 2272 1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.exe 87 PID 2272 wrote to memory of 516 2272 1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.exe 87 PID 2272 wrote to memory of 516 2272 1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.exe 87 PID 2272 wrote to memory of 4572 2272 1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.exe 89 PID 2272 wrote to memory of 4572 2272 1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.exe 89 PID 2272 wrote to memory of 4572 2272 1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.exe 89 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-596315103-1488671723-776734015-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-596315103-1488671723-776734015-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.exe"C:\Users\Admin\AppData\Local\Temp\1e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5.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:2272 -
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:516
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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:4572
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2272 -s 16842⤵
- Program crash
PID:3056
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum1⤵PID:4908
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc1⤵PID:4528
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2272 -ip 22721⤵PID:3404
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.6MB
MD5d6549c6dd3281b5b1ff67d9e2bd3c98b
SHA130007f23e0469621a05c00ce27f12ca96f827d5b
SHA2561e87316edaf712fffb76ecd07825d152c2e150035ab52e2208de86b16942a2f5
SHA5128776b0f84b6b3e49d3fdc6248ca005a669ab350b88a1ca6732cd765c74ee35c3872173fe8313b3603f621207392710b3addca898c7c65fc89461841e5243902f
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Filesize
3KB
MD5495667a5660839086f774f0bdbd9b5fb
SHA14586f55664d146c890a70c62d916effa8dca0b9f
SHA2562184db68bdb4d644dc8b8dbc0aa5f0cc5f3e37f846eba319369c3ec077f321ed
SHA5120c653a3ec0f2da316a42d34fb1a4bdd90dc85d5e09433ef52b964a1774b766983de8972e95731a6bbac59c00555104fca067212ccc93b20fdef9fc006d54488c
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Filesize
92KB
MD55bca7f96843d97e2c39afbb8b5f9865b
SHA1e64666a5d705a768e2351621577a386400111251
SHA256e25c46923271e687a972edfcf511d7685c24ce2e509a5b10d0ba4cd6f2bfeab2
SHA51240771d495b407c0ede8ad3e5d8e77cf588a607426f0597f0c10a81ec7b2614f28a66a1c5ff36bf8bf6905bdc6b537d8cc5a749725adfc57f72ec3c9ee17f76d3
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Filesize
116KB
MD5f70aa3fa04f0536280f872ad17973c3d
SHA150a7b889329a92de1b272d0ecf5fce87395d3123
SHA2568d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8
SHA51230675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84