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Analysis
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max time kernel
149s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
26/07/2024, 05:36
Static task
static1
Behavioral task
behavioral1
Sample
f46ca9f9ce10a5e7d09839a060ae2180439b4812abbcb9f0da952a963c5d5a92.exe
Resource
win7-20240705-en
General
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Target
f46ca9f9ce10a5e7d09839a060ae2180439b4812abbcb9f0da952a963c5d5a92.exe
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Size
496KB
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MD5
a75f4e9f42dcfdbb0142daec7d86261c
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SHA1
acd55d6988f7a4cdc66eddfc782ab72c89ecffee
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SHA256
f46ca9f9ce10a5e7d09839a060ae2180439b4812abbcb9f0da952a963c5d5a92
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SHA512
a9e4f716acf53e8e38bf638e6bdf3e5910a0079734488dcbfa4dbf24246e75005da9e823b42b1873b3b82f6000b97cee20b10f8e59d5c678f7cbcb40fa0f8eed
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SSDEEP
12288:Clzo33HHzk1uxJZCr2vxtl2uw1TVdsovFjW+1:Clzo33HHzpf8C/l299VdlFj91
Malware Config
Signatures
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ f46ca9f9ce10a5e7d09839a060ae2180439b4812abbcb9f0da952a963c5d5a92.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2636447293-1148739154-93880854-1000\Control Panel\International\Geo\Nation f46ca9f9ce10a5e7d09839a060ae2180439b4812abbcb9f0da952a963c5d5a92.exe -
Executes dropped EXE 1 IoCs
pid Process 4480 s8571.exe -
Drops desktop.ini file(s) 2 IoCs
description ioc Process File created C:\Windows\assembly\Desktop.ini s8571.exe File opened for modification C:\Windows\assembly\Desktop.ini s8571.exe -
Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\assembly\Desktop.ini s8571.exe File opened for modification C:\Windows\assembly s8571.exe File created C:\Windows\assembly\Desktop.ini s8571.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 4188 1288 WerFault.exe 83 -
System Location Discovery: System Language Discovery 1 TTPs 1 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 f46ca9f9ce10a5e7d09839a060ae2180439b4812abbcb9f0da952a963c5d5a92.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS f46ca9f9ce10a5e7d09839a060ae2180439b4812abbcb9f0da952a963c5d5a92.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer f46ca9f9ce10a5e7d09839a060ae2180439b4812abbcb9f0da952a963c5d5a92.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1288 f46ca9f9ce10a5e7d09839a060ae2180439b4812abbcb9f0da952a963c5d5a92.exe 1288 f46ca9f9ce10a5e7d09839a060ae2180439b4812abbcb9f0da952a963c5d5a92.exe 4480 s8571.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4480 s8571.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4480 s8571.exe 4480 s8571.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 1288 wrote to memory of 4480 1288 f46ca9f9ce10a5e7d09839a060ae2180439b4812abbcb9f0da952a963c5d5a92.exe 84 PID 1288 wrote to memory of 4480 1288 f46ca9f9ce10a5e7d09839a060ae2180439b4812abbcb9f0da952a963c5d5a92.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\f46ca9f9ce10a5e7d09839a060ae2180439b4812abbcb9f0da952a963c5d5a92.exe"C:\Users\Admin\AppData\Local\Temp\f46ca9f9ce10a5e7d09839a060ae2180439b4812abbcb9f0da952a963c5d5a92.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1288 -
C:\Users\Admin\AppData\Local\Temp\n8571\s8571.exe"C:\Users\Admin\AppData\Local\Temp\n8571\s8571.exe" ins.exe /e11738482 /u51938065-e47c-4b97-bfda-2a105bc06f2f /v"C:\Users\Admin\AppData\Local\Temp\f46ca9f9ce10a5e7d09839a060ae2180439b4812abbcb9f0da952a963c5d5a92.exe"2⤵
- Executes dropped EXE
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4480
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1288 -s 44802⤵
- Program crash
PID:4188
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1288 -ip 12881⤵PID:3440
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
275KB
MD5316287c0010874356127dd8b7bc17896
SHA10939ad854954393f052f5ba64b6c4b8e03a8866b
SHA25669d0557e8d695a1d44ed91b643b93a01a2fd74056dc21bf334965f5045e8f4c9
SHA5121d995b5e18bdf387a42d0029d20c1f2889fa70c5bc8895df674fc83e3b49bb2acd8031966b593cff2b72438bde929a50a7558adc1df5d8cae7097b8fedb39c1c