Analysis
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max time kernel
60s -
max time network
59s -
platform
windows10-2004_x64 -
resource
win10v2004-20240611-en -
resource tags
arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system -
submitted
26-06-2024 21:05
Behavioral task
behavioral1
Sample
14f3aafe8b8d72786ddad65a08f41183ce60d525c1e2e570c1d98630bd367c49.xls
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
14f3aafe8b8d72786ddad65a08f41183ce60d525c1e2e570c1d98630bd367c49.xls
Resource
win10v2004-20240611-en
General
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Target
14f3aafe8b8d72786ddad65a08f41183ce60d525c1e2e570c1d98630bd367c49.xls
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Size
715KB
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MD5
fa910e128c46a5f9245b472d2dd2d157
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SHA1
6a70f013a2458ecb1b8955b6275b81ea2c9ccbb9
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SHA256
14f3aafe8b8d72786ddad65a08f41183ce60d525c1e2e570c1d98630bd367c49
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SHA512
c0c0a71ab98b21f82193e553798a050b174b87b3d2ddf05c4c91db8942ece4cd9b0eb1e94d282da99e744abdca96698b5891d1fef4f6b43434a07984039e7ef2
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SSDEEP
12288:TRsUpcHnXXzNkRKFfsAqdlVDczXZejbeAQjSY4VTZoLtq57kWjuNMfK:TRsSc3DGUFfpqdUzXM/GjS/VTZoIP
Malware Config
Signatures
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Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
cmd.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1552 708 cmd.exe EXCEL.EXE -
Executes dropped EXE 1 IoCs
Processes:
8nqvvg8xf04o.exepid process 340 8nqvvg8xf04o.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 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 708 EXCEL.EXE -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
8nqvvg8xf04o.exedescription pid process Token: SeDebugPrivilege 340 8nqvvg8xf04o.exe -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 708 EXCEL.EXE 708 EXCEL.EXE 708 EXCEL.EXE 708 EXCEL.EXE 708 EXCEL.EXE 708 EXCEL.EXE 708 EXCEL.EXE 708 EXCEL.EXE 708 EXCEL.EXE 708 EXCEL.EXE 708 EXCEL.EXE 708 EXCEL.EXE -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
EXCEL.EXEcmd.execsc.exedescription pid process target process PID 708 wrote to memory of 1552 708 EXCEL.EXE cmd.exe PID 708 wrote to memory of 1552 708 EXCEL.EXE cmd.exe PID 1552 wrote to memory of 2316 1552 cmd.exe csc.exe PID 1552 wrote to memory of 2316 1552 cmd.exe csc.exe PID 1552 wrote to memory of 2316 1552 cmd.exe csc.exe PID 2316 wrote to memory of 3200 2316 csc.exe cvtres.exe PID 2316 wrote to memory of 3200 2316 csc.exe cvtres.exe PID 2316 wrote to memory of 3200 2316 csc.exe cvtres.exe PID 1552 wrote to memory of 340 1552 cmd.exe 8nqvvg8xf04o.exe PID 1552 wrote to memory of 340 1552 cmd.exe 8nqvvg8xf04o.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\14f3aafe8b8d72786ddad65a08f41183ce60d525c1e2e570c1d98630bd367c49.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:708 -
C:\Windows\SYSTEM32\cmd.execmd /c C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe /target:winexe /out:"C:\Users\Admin\AppData\Roaming\Microsoft\8nqvvg8xf04o.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\35i7gkwgv8du.cs" & "C:\Users\Admin\AppData\Roaming\Microsoft\8nqvvg8xf04o.exe"2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:1552 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe /target:winexe /out:"C:\Users\Admin\AppData\Roaming\Microsoft\8nqvvg8xf04o.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\35i7gkwgv8du.cs"3⤵
- Suspicious use of WriteProcessMemory
PID:2316 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES4A38.tmp" "c:\Users\Admin\AppData\Roaming\Microsoft\CSCC163E024F3C3468B9C9DDA5844AC4E6.TMP"4⤵PID:3200
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C:\Users\Admin\AppData\Roaming\Microsoft\8nqvvg8xf04o.exe"C:\Users\Admin\AppData\Roaming\Microsoft\8nqvvg8xf04o.exe"3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:340
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD5fae7811516f66112960592100ac0f30a
SHA1921e91c44848c14bbf2b1c9f6f69c18a4f54f04d
SHA2566e0ae3d9441562b9820ff24d84e7654a8c27f1a736c93d95cf744ed469e20ac7
SHA512474d640eb726a877e2abbb92981b4a30c6a56e1e0c451f647c700111d2de6e971b50a4b1ad5e26b14501d1a5f8dc959b5941bd8dbd9cff9d5eac7aff42991972
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Filesize
6KB
MD56893fe1800d587aa4d41ec64fcfb1e27
SHA1f3bd5c6e459ef05e070c269a13ba798f6c04b47f
SHA256c3c7ab81873f7f6394992c2eab5094c450df0ab5ccef3244d0596418a233c996
SHA5121b25388f930b46349da93ef7fd98688eab52ecb0be371e55bf6505eaedcc19f6f3d358e0d8543754a098b3e545b068366cab1c5dac1ba474c96180d21fb49495
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Filesize
2KB
MD53d6a86624aed949ac6b72ecfac76ff6d
SHA1bdbb6a1619b57c5ee0e8577fc25b74ff29c74e94
SHA256b00fdf715ad530babc4a92749ff05cdeee1eb81069f28fbe4ae27933d74533e0
SHA512b2fc0f8218bd9c8c534adf7c8716bb60f3de94a3e73c9e77515fa927c681d1b7c1fdc1b83a92f5ee5ef75d9a3279cc2db1a3b118332b346148a239555b14a1ae
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Filesize
1KB
MD5115214ff9b052ddc7de7b1197e7abc71
SHA1fd0a62e9c3070192b3d22d13f97c152f5512e8cc
SHA2562d0287e1c3c1671214f8e88ec2d295ff8c8c227eebf97ca81fe412b8746fcba0
SHA51201e3d0badec071c6f36e700c6ae0a0ce8e05a411581d563486a33b8915c14697e080c559068244fa6843160fcec1882d4b46fe6c7a494cda90618780baac08b8