7e0b4b26bafd471703fac1db25b24936230aecad95732e66420184d717a111ee

Target

Invoice-5959498320211004.xlsb
Size

132KB
MD5

887bc475305003bdc34e671a2f3bd080
SHA1

7625f787be7479bf54addeff0ce7107cf0f59f23
SHA256

7e0b4b26bafd471703fac1db25b24936230aecad95732e66420184d717a111ee
SHA512

efb52e8c1fdf6e7cbc80b951220e25c78be0aad5c24b732696784b9b4d5d2c7a284df11fb0f524f64fa3f39a887069599c91f5233062d2aa8c01617104dd9ccd

Score

1^/10

Malware Config

Signatures

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

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

Query Registry

T1012

System Information Discovery

T1082

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1684	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1456	powershell.exe
1456	powershell.exe
1456	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1456	powershell.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1684	EXCEL.EXE
1684	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\Invoice-5959498320211004.xlsb"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:1684

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1456

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1456-272-0x000001BFD0780000-0x000001BFD0782000-memory.dmp

Filesize
8KB

Download
memory/1456-273-0x000001BFD0783000-0x000001BFD0785000-memory.dmp

Filesize
8KB

Download
memory/1456-315-0x000001BFD0786000-0x000001BFD0788000-memory.dmp

Filesize
8KB

Download
memory/1684-115-0x00007FFEE1440000-0x00007FFEE1450000-memory.dmp

Filesize
64KB

Download
memory/1684-116-0x00007FFEE1440000-0x00007FFEE1450000-memory.dmp

Filesize
64KB

Download
memory/1684-117-0x00007FFEE1440000-0x00007FFEE1450000-memory.dmp

Filesize
64KB

Download
memory/1684-118-0x00007FFEE1440000-0x00007FFEE1450000-memory.dmp

Filesize
64KB

Download
memory/1684-119-0x000002C474AF0000-0x000002C474AF2000-memory.dmp

Filesize
8KB

Download
memory/1684-120-0x000002C474AF0000-0x000002C474AF2000-memory.dmp

Filesize
8KB

Download
memory/1684-121-0x00007FFEE1440000-0x00007FFEE1450000-memory.dmp

Filesize
64KB

Download
memory/1684-122-0x000002C474AF0000-0x000002C474AF2000-memory.dmp

Filesize
8KB

Download