Analysis
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max time kernel
141s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20240705-en -
resource tags
arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system -
submitted
18/08/2024, 04:11
Static task
static1
Behavioral task
behavioral1
Sample
bf2db65e6efe2e2f0020ac57f62ace1ad3381b1987e9852cc1ebd000cd2edcaf.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
bf2db65e6efe2e2f0020ac57f62ace1ad3381b1987e9852cc1ebd000cd2edcaf.exe
Resource
win10v2004-20240802-en
General
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Target
bf2db65e6efe2e2f0020ac57f62ace1ad3381b1987e9852cc1ebd000cd2edcaf.exe
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Size
3.7MB
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MD5
e64f2843d6482a2a929b0467b708032c
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SHA1
c58dcf7267325d6d129e80fa991217bb4aa2cfd5
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SHA256
bf2db65e6efe2e2f0020ac57f62ace1ad3381b1987e9852cc1ebd000cd2edcaf
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SHA512
ed1c4b6a80e16c489022a57f03436737df120faefeabeb9acb1cd24a3cc8c185bc78fd26d7db74d0151dbfefb13f68e3d75d69c6ee11d61e30687707af9a8593
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SSDEEP
98304:k4wc3evzvh7phFW/Qwk8khbNqk9mgHdk6K1bD1:PwcipFW/Qw7ob0gH6F/1
Malware Config
Signatures
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Sets file to hidden 1 TTPs 1 IoCs
Modifies file attributes to stop it showing in Explorer etc.
pid Process 2500 attrib.exe -
Deletes itself 1 IoCs
pid Process 2348 cmd.exe -
Executes dropped EXE 1 IoCs
pid Process 2056 scchost.exe -
Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
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Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\Debug\scchost.exe bf2db65e6efe2e2f0020ac57f62ace1ad3381b1987e9852cc1ebd000cd2edcaf.exe File opened for modification C:\Windows\Debug\scchost.exe bf2db65e6efe2e2f0020ac57f62ace1ad3381b1987e9852cc1ebd000cd2edcaf.exe File opened for modification C:\Windows\Debug\scchost.exe attrib.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 4 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 cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language bf2db65e6efe2e2f0020ac57f62ace1ad3381b1987e9852cc1ebd000cd2edcaf.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language attrib.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language scchost.exe -
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 scchost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz scchost.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 1440 bf2db65e6efe2e2f0020ac57f62ace1ad3381b1987e9852cc1ebd000cd2edcaf.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1440 wrote to memory of 2500 1440 bf2db65e6efe2e2f0020ac57f62ace1ad3381b1987e9852cc1ebd000cd2edcaf.exe 31 PID 1440 wrote to memory of 2500 1440 bf2db65e6efe2e2f0020ac57f62ace1ad3381b1987e9852cc1ebd000cd2edcaf.exe 31 PID 1440 wrote to memory of 2500 1440 bf2db65e6efe2e2f0020ac57f62ace1ad3381b1987e9852cc1ebd000cd2edcaf.exe 31 PID 1440 wrote to memory of 2500 1440 bf2db65e6efe2e2f0020ac57f62ace1ad3381b1987e9852cc1ebd000cd2edcaf.exe 31 PID 1440 wrote to memory of 2348 1440 bf2db65e6efe2e2f0020ac57f62ace1ad3381b1987e9852cc1ebd000cd2edcaf.exe 34 PID 1440 wrote to memory of 2348 1440 bf2db65e6efe2e2f0020ac57f62ace1ad3381b1987e9852cc1ebd000cd2edcaf.exe 34 PID 1440 wrote to memory of 2348 1440 bf2db65e6efe2e2f0020ac57f62ace1ad3381b1987e9852cc1ebd000cd2edcaf.exe 34 PID 1440 wrote to memory of 2348 1440 bf2db65e6efe2e2f0020ac57f62ace1ad3381b1987e9852cc1ebd000cd2edcaf.exe 34 -
Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 2500 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\bf2db65e6efe2e2f0020ac57f62ace1ad3381b1987e9852cc1ebd000cd2edcaf.exe"C:\Users\Admin\AppData\Local\Temp\bf2db65e6efe2e2f0020ac57f62ace1ad3381b1987e9852cc1ebd000cd2edcaf.exe"1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1440 -
C:\Windows\SysWOW64\attrib.exeattrib +a +s +h +r C:\Windows\Debug\scchost.exe2⤵
- Sets file to hidden
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Views/modifies file attributes
PID:2500
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\BF2DB6~1.EXE > nul2⤵
- Deletes itself
- System Location Discovery: System Language Discovery
PID:2348
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C:\Windows\Debug\scchost.exeC:\Windows\Debug\scchost.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Checks processor information in registry
PID:2056
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3.7MB
MD5f0b0ad0a8e566076344e5de4d525e2bc
SHA1bd41f85ad8362a7d38e698debe99ce36833efda7
SHA2560028cef7019e9b8ec02b39dbb8870bf6589b09ea0211a8915325591eaebee6d0
SHA51200f2e3719e44802a3b17024317f1e06fb2d8cec642d61c958bcd3ebe563b9838b7f945c10d6fb8d38ce2d511ca9e0368c2c3f87dbdfec10cc5b9792c19bd6e87