03ca287faf117afb0af294d531fa19a2043507162d9d86fdcee045a71caca611

General

Target

PO-14102021.xlsx
Size

685KB
MD5

cef3d2b6c4ee2a1f0ef9023bbaa92b89
SHA1

fad49a6a6d85bb2819b0666d0fb715a53de16c32
SHA256

03ca287faf117afb0af294d531fa19a2043507162d9d86fdcee045a71caca611
SHA512

8645cf469c855834e2d491bcaf65e3ae4cb27d9ca1cc0d68cbb87a7d33ee2b4bb7628fbfe51310d9b1531fb1f8954b26ca4a8b23435abc3e6351adee0ce25950

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

Processes:

EXCEL.EXE

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

Processes:

EXCEL.EXE

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1680 EXCEL.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

Processes:

EXCEL.EXE

pid	process
1680	EXCEL.EXE
1680	EXCEL.EXE
1680	EXCEL.EXE
1680	EXCEL.EXE
1680	EXCEL.EXE
1680	EXCEL.EXE
1680	EXCEL.EXE
1680	EXCEL.EXE
1680	EXCEL.EXE
1680	EXCEL.EXE
1680	EXCEL.EXE
1680	EXCEL.EXE
1680	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1680 wrote to memory of 3256	1680	EXCEL.EXE	splwow64.exe
PID 1680 wrote to memory of 3256	1680	EXCEL.EXE	splwow64.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\PO-14102021.xlsx"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1680

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:3256

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1680-115-0x00007FFEE1440000-0x00007FFEE1450000-memory.dmp

Filesize
64KB

Download
memory/1680-116-0x00007FFEE1440000-0x00007FFEE1450000-memory.dmp

Filesize
64KB

Download
memory/1680-117-0x00007FFEE1440000-0x00007FFEE1450000-memory.dmp

Filesize
64KB

Download
memory/1680-118-0x00007FFEE1440000-0x00007FFEE1450000-memory.dmp

Filesize
64KB

Download
memory/1680-119-0x0000024BEF8C0000-0x0000024BEF8C2000-memory.dmp

Filesize
8KB

Download
memory/1680-120-0x0000024BEF8C0000-0x0000024BEF8C2000-memory.dmp

Filesize
8KB

Download
memory/1680-121-0x00007FFEE1440000-0x00007FFEE1450000-memory.dmp

Filesize
64KB

Download
memory/1680-122-0x0000024BEF8C0000-0x0000024BEF8C2000-memory.dmp

Filesize
8KB

Download
memory/1680-128-0x00007FFEDD8D0000-0x00007FFEDD8E0000-memory.dmp

Filesize
64KB

Download
memory/1680-131-0x00007FFEDD8D0000-0x00007FFEDD8E0000-memory.dmp

Filesize
64KB

Download
memory/1680-164-0x0000024BEF8C0000-0x0000024BEF8C2000-memory.dmp

Filesize
8KB

Download
memory/1680-165-0x0000024BEF8C0000-0x0000024BEF8C2000-memory.dmp

Filesize
8KB

Download
memory/1680-179-0x0000024BEF8C0000-0x0000024BEF8C2000-memory.dmp

Filesize
8KB

Download
memory/3256-260-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads