Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
01-03-2024 02:48
Behavioral task
behavioral1
Sample
b022b36862b56d9da2303ffcbb4a67ab.xlsb
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
b022b36862b56d9da2303ffcbb4a67ab.xlsb
Resource
win10v2004-20240226-en
General
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Target
b022b36862b56d9da2303ffcbb4a67ab.xlsb
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Size
342KB
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MD5
b022b36862b56d9da2303ffcbb4a67ab
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SHA1
e3af13c011041ca7acbe9c72f1307cf83d8fdc1e
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SHA256
999c5f5c362b730f9abaf43fe6f8a8e162c0f98ff9523f2e3fc22698ab5acb09
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SHA512
e19c5bb29872ae131f4fa1a85d336d71c62075df0edba75b7a9fca87d7e029113e1020663ee025af5520b9fc01cb381fdffe3f0f8bfd1fc7cf5525d7f0268592
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SSDEEP
6144:oWD8oGJwuWXO/J6t/VYfASkKTzZYwPMPFde/Qxx2u+OA+NT5AQ:F8v6X7ifASkKTzSwkPFduQx0uD+Q
Malware Config
Signatures
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Process spawned unexpected child process 2 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
wmic.exemshta.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 5024 2528 wmic.exe EXCEL.EXE Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 3332 800 mshta.exe -
Blocklisted process makes network request 3 IoCs
Processes:
mshta.exeflow pid process 18 3332 mshta.exe 21 3332 mshta.exe 26 3332 mshta.exe -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
EXCEL.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
EXCEL.EXEdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 2528 EXCEL.EXE -
Suspicious use of AdjustPrivilegeToken 42 IoCs
Processes:
wmic.exedescription pid process Token: SeIncreaseQuotaPrivilege 5024 wmic.exe Token: SeSecurityPrivilege 5024 wmic.exe Token: SeTakeOwnershipPrivilege 5024 wmic.exe Token: SeLoadDriverPrivilege 5024 wmic.exe Token: SeSystemProfilePrivilege 5024 wmic.exe Token: SeSystemtimePrivilege 5024 wmic.exe Token: SeProfSingleProcessPrivilege 5024 wmic.exe Token: SeIncBasePriorityPrivilege 5024 wmic.exe Token: SeCreatePagefilePrivilege 5024 wmic.exe Token: SeBackupPrivilege 5024 wmic.exe Token: SeRestorePrivilege 5024 wmic.exe Token: SeShutdownPrivilege 5024 wmic.exe Token: SeDebugPrivilege 5024 wmic.exe Token: SeSystemEnvironmentPrivilege 5024 wmic.exe Token: SeRemoteShutdownPrivilege 5024 wmic.exe Token: SeUndockPrivilege 5024 wmic.exe Token: SeManageVolumePrivilege 5024 wmic.exe Token: 33 5024 wmic.exe Token: 34 5024 wmic.exe Token: 35 5024 wmic.exe Token: 36 5024 wmic.exe Token: SeIncreaseQuotaPrivilege 5024 wmic.exe Token: SeSecurityPrivilege 5024 wmic.exe Token: SeTakeOwnershipPrivilege 5024 wmic.exe Token: SeLoadDriverPrivilege 5024 wmic.exe Token: SeSystemProfilePrivilege 5024 wmic.exe Token: SeSystemtimePrivilege 5024 wmic.exe Token: SeProfSingleProcessPrivilege 5024 wmic.exe Token: SeIncBasePriorityPrivilege 5024 wmic.exe Token: SeCreatePagefilePrivilege 5024 wmic.exe Token: SeBackupPrivilege 5024 wmic.exe Token: SeRestorePrivilege 5024 wmic.exe Token: SeShutdownPrivilege 5024 wmic.exe Token: SeDebugPrivilege 5024 wmic.exe Token: SeSystemEnvironmentPrivilege 5024 wmic.exe Token: SeRemoteShutdownPrivilege 5024 wmic.exe Token: SeUndockPrivilege 5024 wmic.exe Token: SeManageVolumePrivilege 5024 wmic.exe Token: 33 5024 wmic.exe Token: 34 5024 wmic.exe Token: 35 5024 wmic.exe Token: 36 5024 wmic.exe -
Suspicious use of SetWindowsHookEx 16 IoCs
Processes:
EXCEL.EXEpid process 2528 EXCEL.EXE 2528 EXCEL.EXE 2528 EXCEL.EXE 2528 EXCEL.EXE 2528 EXCEL.EXE 2528 EXCEL.EXE 2528 EXCEL.EXE 2528 EXCEL.EXE 2528 EXCEL.EXE 2528 EXCEL.EXE 2528 EXCEL.EXE 2528 EXCEL.EXE 2528 EXCEL.EXE 2528 EXCEL.EXE 2528 EXCEL.EXE 2528 EXCEL.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 2528 wrote to memory of 5024 2528 EXCEL.EXE wmic.exe PID 2528 wrote to memory of 5024 2528 EXCEL.EXE wmic.exe
Processes
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C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\b022b36862b56d9da2303ffcbb4a67ab.xlsb"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2528 -
C:\Windows\System32\Wbem\wmic.exewmic process call create 'mshta C:\ProgramData\KaViuVRDAQxr.sct'2⤵
- Process spawned unexpected child process
- Suspicious use of AdjustPrivilegeToken
PID:5024
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C:\Windows\system32\mshta.exemshta C:\ProgramData\KaViuVRDAQxr.sct1⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
PID:3332
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
15KB
MD59c84993db8519b015d37996f6332854e
SHA1bc56c1e1f613573a22dcd879f918dcf122c6511e
SHA256acc2c8056f1d88db7051b3c636aa8c384d2f8482e6045c95be9826fb4b160041
SHA512e697acc4e0b2f243568e852b6646ccb15ded41f7553c6d19784139d1101f4892f96711e14785d640bee163a5febcb91ee4cad1a64b835bb2f08603fb7716260c