Analysis
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max time kernel
144s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20230703-en -
resource tags
arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system -
submitted
17-07-2023 09:27
Static task
static1
Behavioral task
behavioral1
Sample
Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe
Resource
win10v2004-20230703-en
General
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Target
Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe
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Size
771KB
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MD5
6385e97010865068d50af4c15828af3b
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SHA1
408ed57e0874c3d5c89eb1e22ba295e66df9aeb3
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SHA256
3d84c7753d68182e7ca22f69dbb983f4015278c2b5843942399be16dbf8f5f7e
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SHA512
6146c29278af6828697382afce477992b1052160ab07615fe27b43fd22d3af16eebaccf9e0bc688b1c8cbb3ec9ee81338e0c576136fb24f312ad7a195097b368
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SSDEEP
12288:Yg9BqMsNXoEuR3hAD0AVqRCU62yzfvuJqhKduldKeQLV65wDGu+RNI21mN:ftsqEuLADXdXzvQqwdulA5gZu+RNI2a
Malware Config
Signatures
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Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
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Checks QEMU agent file 2 TTPs 2 IoCs
Checks presence of QEMU agent, possibly to detect virtualization.
description ioc Process File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe -
Loads dropped DLL 1 IoCs
pid Process 3928 Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe -
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-1-5-21-1420546310-613437930-2990200354-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe Key opened \REGISTRY\USER\S-1-5-21-1420546310-613437930-2990200354-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe Key opened \REGISTRY\USER\S-1-5-21-1420546310-613437930-2990200354-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.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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Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Drops file in System32 directory 3 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\fingers\Copen8.mad Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe File opened for modification C:\Windows\SysWOW64\schellingism.ini Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe File opened for modification C:\Windows\SysWOW64\Personkredsene\sheering.Bal Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe -
Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs
pid Process 4600 Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe 4600 Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 3928 Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe 4600 Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3928 set thread context of 4600 3928 Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe 94 -
Drops file in Program Files directory 1 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Limpidity\rerriges\termometerstandene.for Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\resources\genforeninger\subterraneanises\nstbedst\volontrtjeneste.res Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3928 Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 4600 Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4600 Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3928 wrote to memory of 4600 3928 Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe 94 PID 3928 wrote to memory of 4600 3928 Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe 94 PID 3928 wrote to memory of 4600 3928 Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe 94 PID 3928 wrote to memory of 4600 3928 Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe 94 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1420546310-613437930-2990200354-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1420546310-613437930-2990200354-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe"C:\Users\Admin\AppData\Local\Temp\Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe"1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3928 -
C:\Users\Admin\AppData\Local\Temp\Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe"C:\Users\Admin\AppData\Local\Temp\Upit za ponudu cijene (UNIZG 2307-17HR)·pdf.exe"2⤵
- Checks QEMU agent file
- Accesses Microsoft Outlook profiles
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4600
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
11KB
MD5a4dd044bcd94e9b3370ccf095b31f896
SHA117c78201323ab2095bc53184aa8267c9187d5173
SHA2562e226715419a5882e2e14278940ee8ef0aa648a3ef7af5b3dc252674111962bc
SHA51287335a43b9ca13e1300c7c23e702e87c669e2bcf4f6065f0c684fc53165e9c1f091cc4d79a3eca3910f0518d3b647120ac0be1a68eaade2e75eaa64adfc92c5a
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-1420546310-613437930-2990200354-1000\0f5007522459c86e95ffcc62f32308f1_4dc48ea0-ec1c-4c48-ab6a-6232968c18bf
Filesize46B
MD5d898504a722bff1524134c6ab6a5eaa5
SHA1e0fdc90c2ca2a0219c99d2758e68c18875a3e11e
SHA256878f32f76b159494f5a39f9321616c6068cdb82e88df89bcc739bbc1ea78e1f9
SHA51226a4398bffb0c0aef9a6ec53cd3367a2d0abf2f70097f711bbbf1e9e32fd9f1a72121691bb6a39eeb55d596edd527934e541b4defb3b1426b1d1a6429804dc61
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-1420546310-613437930-2990200354-1000\0f5007522459c86e95ffcc62f32308f1_4dc48ea0-ec1c-4c48-ab6a-6232968c18bf
Filesize46B
MD5c07225d4e7d01d31042965f048728a0a
SHA169d70b340fd9f44c89adb9a2278df84faa9906b7
SHA2568c136c7ae08020ad16fd1928e36ad335ddef8b85906d66b712fff049aa57dc9a
SHA51223d3cea738e1abf561320847c39dadc8b5794d7bd8761b0457956f827a17ad2556118b909a3e6929db79980ccf156a6f58ac823cf88329e62417d2807b34b64b