Analysis
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max time kernel
149s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20230703-en -
resource tags
arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system -
submitted
14/07/2023, 06:19
Static task
static1
Behavioral task
behavioral1
Sample
F099478.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
F099478.exe
Resource
win10v2004-20230703-en
General
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Target
F099478.exe
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Size
177KB
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MD5
96809d60d268db506ca528e867ba8c5a
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SHA1
6fef4e09b44ce8ad852f22903cb7ab5918b7709f
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SHA256
6de386ad686fd00b275d153d6a56520cda19c63843c3506d11cf0776e9cd05e0
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SHA512
9218d18a4aaff67920ad5952a3162c437e4745e4d9fc92fc3e1f1cbc7e01cd96edbf9a89668323381232328863236f459c8800486571297de74f6895882511ff
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SSDEEP
3072:72acZ7kUdPIinyccnpbmZ3EBV8RCJBcw8FKXQdU2lagscXNeKvhxyjLLVEZCoWLo:728A9KNuRtUOarAz0L5EZCjUP
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 F099478.exe File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe F099478.exe -
Loads dropped DLL 2 IoCs
pid Process 4076 F099478.exe 4076 F099478.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-1-5-21-4176143399-3250363947-192774652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook F099478.exe Key opened \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook F099478.exe Key opened \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook F099478.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce F099478.exe Set value (str) \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Breastrail = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Cupidone\\Chromas.exe" F099478.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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Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs
pid Process 4172 F099478.exe 4172 F099478.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 4076 F099478.exe 4172 F099478.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4076 set thread context of 4172 4076 F099478.exe 101 -
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 4076 F099478.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4172 F099478.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4076 wrote to memory of 4172 4076 F099478.exe 101 PID 4076 wrote to memory of 4172 4076 F099478.exe 101 PID 4076 wrote to memory of 4172 4076 F099478.exe 101 PID 4076 wrote to memory of 4172 4076 F099478.exe 101 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook F099478.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook F099478.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\F099478.exe"C:\Users\Admin\AppData\Local\Temp\F099478.exe"1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4076 -
C:\Users\Admin\AppData\Local\Temp\F099478.exe"C:\Users\Admin\AppData\Local\Temp\F099478.exe"2⤵
- Checks QEMU agent file
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4172
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
11KB
MD54d3b19a81bd51f8ce44b93643a4e3a99
SHA135f8b00e85577b014080df98bd2c378351d9b3e9
SHA256fda0018ab182ac6025d2fc9a2efcce3745d1da21ce5141859f8286cf319a52ce
SHA512b2ba9c961c0e1617f802990587a9000979ab5cc493ae2f8ca852eb43eeaf24916b0b29057dbff7d41a1797dfb2dce3db41990e8639b8f205771dbec3fd80f622
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Filesize
11KB
MD54d3b19a81bd51f8ce44b93643a4e3a99
SHA135f8b00e85577b014080df98bd2c378351d9b3e9
SHA256fda0018ab182ac6025d2fc9a2efcce3745d1da21ce5141859f8286cf319a52ce
SHA512b2ba9c961c0e1617f802990587a9000979ab5cc493ae2f8ca852eb43eeaf24916b0b29057dbff7d41a1797dfb2dce3db41990e8639b8f205771dbec3fd80f622
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Filesize
11KB
MD54d3b19a81bd51f8ce44b93643a4e3a99
SHA135f8b00e85577b014080df98bd2c378351d9b3e9
SHA256fda0018ab182ac6025d2fc9a2efcce3745d1da21ce5141859f8286cf319a52ce
SHA512b2ba9c961c0e1617f802990587a9000979ab5cc493ae2f8ca852eb43eeaf24916b0b29057dbff7d41a1797dfb2dce3db41990e8639b8f205771dbec3fd80f622
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-4176143399-3250363947-192774652-1000\0f5007522459c86e95ffcc62f32308f1_a45f701b-5010-437a-b6fa-20e6d38f067d
Filesize46B
MD5d898504a722bff1524134c6ab6a5eaa5
SHA1e0fdc90c2ca2a0219c99d2758e68c18875a3e11e
SHA256878f32f76b159494f5a39f9321616c6068cdb82e88df89bcc739bbc1ea78e1f9
SHA51226a4398bffb0c0aef9a6ec53cd3367a2d0abf2f70097f711bbbf1e9e32fd9f1a72121691bb6a39eeb55d596edd527934e541b4defb3b1426b1d1a6429804dc61
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-4176143399-3250363947-192774652-1000\0f5007522459c86e95ffcc62f32308f1_a45f701b-5010-437a-b6fa-20e6d38f067d
Filesize46B
MD5d898504a722bff1524134c6ab6a5eaa5
SHA1e0fdc90c2ca2a0219c99d2758e68c18875a3e11e
SHA256878f32f76b159494f5a39f9321616c6068cdb82e88df89bcc739bbc1ea78e1f9
SHA51226a4398bffb0c0aef9a6ec53cd3367a2d0abf2f70097f711bbbf1e9e32fd9f1a72121691bb6a39eeb55d596edd527934e541b4defb3b1426b1d1a6429804dc61