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Analysis
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max time kernel
149s -
max time network
132s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
24/08/2024, 19:26
Static task
static1
Behavioral task
behavioral1
Sample
0f41acd303a8d7ab07277da02f8341795ddbb13a8c38d65e8a61ca093ba2be9c.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
0f41acd303a8d7ab07277da02f8341795ddbb13a8c38d65e8a61ca093ba2be9c.exe
Resource
win10v2004-20240802-en
General
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Target
0f41acd303a8d7ab07277da02f8341795ddbb13a8c38d65e8a61ca093ba2be9c.exe
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Size
464KB
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MD5
b98958b40e9be67a7b7f04e1efee3f77
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SHA1
be6fd451f55adca92c7526085917bc70139ffb1c
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SHA256
0f41acd303a8d7ab07277da02f8341795ddbb13a8c38d65e8a61ca093ba2be9c
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SHA512
727319a8dab51139bba382d4e62ce4662983e870e9653f5afb2e9bb5e6f4204a6d017f36cd18c9f4a6e4d68b44f7265b75b260d4569a174fb952354e7d6fa2e2
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SSDEEP
12288:ALlc87eqqV5e+wBV6O+bZqSXfPFAXGxEUkdNCD6to:ALSqqHeVBxyXfPFwGx+
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
pid Process 1840 CertHost.exe 3644 findvr32.exe 1420 ~C0B0.tmp -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\charkdsk = "C:\\Users\\Admin\\AppData\\Roaming\\helpdmin\\CertHost.exe" 0f41acd303a8d7ab07277da02f8341795ddbb13a8c38d65e8a61ca093ba2be9c.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\findvr32.exe 0f41acd303a8d7ab07277da02f8341795ddbb13a8c38d65e8a61ca093ba2be9c.exe -
System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 0f41acd303a8d7ab07277da02f8341795ddbb13a8c38d65e8a61ca093ba2be9c.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language CertHost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language findvr32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1840 CertHost.exe 1840 CertHost.exe 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE 3432 Explorer.EXE -
Suspicious use of AdjustPrivilegeToken 9 IoCs
description pid Process Token: SeDebugPrivilege 1840 CertHost.exe Token: SeShutdownPrivilege 3432 Explorer.EXE Token: SeCreatePagefilePrivilege 3432 Explorer.EXE Token: SeShutdownPrivilege 3432 Explorer.EXE Token: SeCreatePagefilePrivilege 3432 Explorer.EXE Token: SeShutdownPrivilege 3432 Explorer.EXE Token: SeCreatePagefilePrivilege 3432 Explorer.EXE Token: SeShutdownPrivilege 3432 Explorer.EXE Token: SeCreatePagefilePrivilege 3432 Explorer.EXE -
Suspicious use of UnmapMainImage 1 IoCs
pid Process 3432 Explorer.EXE -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3128 wrote to memory of 1840 3128 0f41acd303a8d7ab07277da02f8341795ddbb13a8c38d65e8a61ca093ba2be9c.exe 87 PID 3128 wrote to memory of 1840 3128 0f41acd303a8d7ab07277da02f8341795ddbb13a8c38d65e8a61ca093ba2be9c.exe 87 PID 3128 wrote to memory of 1840 3128 0f41acd303a8d7ab07277da02f8341795ddbb13a8c38d65e8a61ca093ba2be9c.exe 87 PID 1840 wrote to memory of 1420 1840 CertHost.exe 89 PID 1840 wrote to memory of 1420 1840 CertHost.exe 89 PID 1420 wrote to memory of 3432 1420 ~C0B0.tmp 56
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3432 -
C:\Users\Admin\AppData\Local\Temp\0f41acd303a8d7ab07277da02f8341795ddbb13a8c38d65e8a61ca093ba2be9c.exe"C:\Users\Admin\AppData\Local\Temp\0f41acd303a8d7ab07277da02f8341795ddbb13a8c38d65e8a61ca093ba2be9c.exe"2⤵
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3128 -
C:\Users\Admin\AppData\Roaming\helpdmin\CertHost.exe"C:\Users\Admin\AppData\Roaming\helpdmin"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1840 -
C:\Users\Admin\AppData\Local\Temp\~C0B0.tmp3432 475144 1840 14⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1420
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C:\Windows\SysWOW64\findvr32.exeC:\Windows\SysWOW64\findvr32.exe -s1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3644
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
8KB
MD586dc243576cf5c7445451af37631eea9
SHA199a81c47c4c02f32c0ab456bfa23c306c7a09bf9
SHA25625d2a671e1b5b5b95697ac0234ce4d46e0d0894919521b54aabebd9daecf994a
SHA512c7310524f9b65f811146c1eb6ae944966351ac88a95fbc1ac422d8810730e5e212a7e28090ad758ea23c96ba38073e7fcf42460575e7f09dbc759a45c5d5a4a4
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Filesize
464KB
MD59367b0e59079b4d10712d6a190386783
SHA10e286313f0a4d30cfd05ea6bd2540169a6453fbb
SHA2565ac8e9d94aa1768b54d87b5933d820cd5a55b04c9f2a9e77ef101b2f09441003
SHA5124925fb172a642cee9ec447d0730d42849806780de2676dc62ca3841485993089e9225e30a8cc39208a8fc7bb3cc6dd703cd9c2ea4c9826eb2e42d51b73e173bd