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Analysis
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max time kernel
127s -
max time network
135s -
platform
windows10-2004_x64 -
resource
win10v2004-20230831-en -
resource tags
arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system -
submitted
02/09/2023, 12:02
Static task
static1
Behavioral task
behavioral1
Sample
UnconfirmedInvoicestotalamount_JC.xll
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
UnconfirmedInvoicestotalamount_JC.xll
Resource
win10v2004-20230831-en
General
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Target
UnconfirmedInvoicestotalamount_JC.xll
-
Size
573KB
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MD5
76a7d4c43cbe51e7cac8e6eb88d1a9b7
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SHA1
3186fceaea15217c4345cab35fc71087feeba204
-
SHA256
ef74d2b8d1767667fb6817916f7d2d2c998358e07422a6af246151e0299f26aa
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SHA512
424257365fdea3138e9e61503bce99c1949680ed4a24b7e55a1dd08e721c12fee16da9b4f5575e4b2c42270c7911b875f8c6a3c2d3ee14b75c3e24bc74277ffe
-
SSDEEP
12288:an/zDvGHAykHSzLW/4+8bzbBSreMd5LFgFK/UqW:IzbGHAzHAjX1EcL
Malware Config
Extracted
Signatures
-
Loads dropped DLL 2 IoCs
pid Process 1160 EXCEL.EXE 1160 EXCEL.EXE -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description 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
description 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
pid Process 1160 EXCEL.EXE -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1160 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1160 EXCEL.EXE 1160 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 1160 EXCEL.EXE 1160 EXCEL.EXE 1160 EXCEL.EXE 1160 EXCEL.EXE 1160 EXCEL.EXE 1160 EXCEL.EXE 1160 EXCEL.EXE 1160 EXCEL.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\UnconfirmedInvoicestotalamount_JC.xll"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:1160
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
573KB
MD576a7d4c43cbe51e7cac8e6eb88d1a9b7
SHA13186fceaea15217c4345cab35fc71087feeba204
SHA256ef74d2b8d1767667fb6817916f7d2d2c998358e07422a6af246151e0299f26aa
SHA512424257365fdea3138e9e61503bce99c1949680ed4a24b7e55a1dd08e721c12fee16da9b4f5575e4b2c42270c7911b875f8c6a3c2d3ee14b75c3e24bc74277ffe
-
Filesize
573KB
MD576a7d4c43cbe51e7cac8e6eb88d1a9b7
SHA13186fceaea15217c4345cab35fc71087feeba204
SHA256ef74d2b8d1767667fb6817916f7d2d2c998358e07422a6af246151e0299f26aa
SHA512424257365fdea3138e9e61503bce99c1949680ed4a24b7e55a1dd08e721c12fee16da9b4f5575e4b2c42270c7911b875f8c6a3c2d3ee14b75c3e24bc74277ffe