Analysis
- max time kernel
151s - max time network
128s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
23/04/2022, 17:20
Static task
static1
Behavioral task
behavioral1
Sample
new.xls
Resource
win7-20220414-en
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
new.xls
Resource
win10v2004-20220414-en
0 signatures
0 seconds
General
- Target new.xls
- Size 36KB
- Sample220423-vwegcadeb7
- SHA256 d553238215e2eee33893735019dfe83d658ba5885150aeb5ec5d3739012c645d
- MD5 12287f5f4e8f9655ed01a5ccafe689c8
- SHA1 f8eb6c1f9f99ee877f652aec5ecec652a8e839fb
- SHA512 2a85bb2e6c36f4c32529d22de9c28be72a08ccfb2ac2ee6f717fd159c12c9c2b70287af2a9dcf5bab5f84e2e76e5e45edc992b8e28d42c64cd516e83f7a63169
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Signatures
- Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 648 4536 explorer.exe 82 - Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description 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
description 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 - Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000_Classes\Local Settings explorer.exe - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4536 EXCEL.EXE - Suspicious use of SetWindowsHookEx 14 IoCs
pid Process 4536 EXCEL.EXE 4536 EXCEL.EXE 4536 EXCEL.EXE 4536 EXCEL.EXE 4536 EXCEL.EXE 4536 EXCEL.EXE 4536 EXCEL.EXE 4536 EXCEL.EXE 4536 EXCEL.EXE 4536 EXCEL.EXE 4536 EXCEL.EXE 4536 EXCEL.EXE 4536 EXCEL.EXE 4536 EXCEL.EXE - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4536 wrote to memory of 648 4536 EXCEL.EXE 89 PID 4536 wrote to memory of 648 4536 EXCEL.EXE 89 PID 4292 wrote to memory of 3624 4292 explorer.exe 91 PID 4292 wrote to memory of 3624 4292 explorer.exe 91
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\new.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4536 -
C:\Windows\explorer.exeexplorer.exe C:\Users\Public\Documents\Og4Uc.vbs2⤵
- Process spawned unexpected child process
PID:648
-
-
C:\Windows\explorer.exeC:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4292 -
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\Og4Uc.vbs"2⤵PID:3624
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Public\Documents\Og4Uc.vbs
- Size 542B
- SHA256 a736df6c5dad9dd9409399b29c348ce6fde0cd80ab6807284375b5c10aec6090
- MD5 36c17d8fbf15ca4925a22a2e4b12453e
- SHA1 c3e51fd262feffaab00369addb6649bbda6ed0de
- SHA512 894ae2445eff604ddf3412663f89f4b8766089e6929563cdde2a185be3623dc1f9cade60fa13c6e6215e49e99575ddbf4b79bdd142a3f3f2ed0a3c92449edc95
- MD5 SHA1 SHA512