8dfff9a2ff5cb2b8d70cf43fd0dc7a521570105d623cf28b76f8c66a9a664dd6

General

Target

papers (71).xls
Size

318KB
MD5

540499ef024a652fea8780e11398f03c
SHA1

33da766338fa9fd840b1f43a6330a0af8cfa0a39
SHA256

8dfff9a2ff5cb2b8d70cf43fd0dc7a521570105d623cf28b76f8c66a9a664dd6
SHA512

63758c69b8315b2dd1944451b614b459298bc1ce2aa3468f46aba58a5008f1c05457f528cabe2fdbdf19d0e90697eb34f80acb778fe5d6560c7ec672b117c144

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.

Processes:

rundll32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	900	4688	rundll32.exe	EXCEL.EXE

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 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.EXE

pid process

4688 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4688	EXCEL.EXE
4688	EXCEL.EXE
4688	EXCEL.EXE
4688	EXCEL.EXE
4688	EXCEL.EXE
4688	EXCEL.EXE
4688	EXCEL.EXE
4688	EXCEL.EXE
4688	EXCEL.EXE
4688	EXCEL.EXE
4688	EXCEL.EXE
4688	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description pid process target process

PID 4688 wrote to memory of 900 4688 EXCEL.EXE rundll32.exe
PID 4688 wrote to memory of 900 4688 EXCEL.EXE rundll32.exe

description	pid	process	target process
PID 4688 wrote to memory of 900	4688	EXCEL.EXE	rundll32.exe
PID 4688 wrote to memory of 900	4688	EXCEL.EXE	rundll32.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\papers (71).xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4688

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\kdfe.vbox,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:900

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/900-7-0x0000000000000000-mapping.dmp

Download
memory/4688-2-0x00007FFCCE2C0000-0x00007FFCCE2D0000-memory.dmp

Filesize
64KB

Download
memory/4688-3-0x00007FFCCE2C0000-0x00007FFCCE2D0000-memory.dmp

Filesize
64KB

Download
memory/4688-4-0x00007FFCCE2C0000-0x00007FFCCE2D0000-memory.dmp

Filesize
64KB

Download
memory/4688-5-0x00007FFCCE2C0000-0x00007FFCCE2D0000-memory.dmp

Filesize
64KB

Download
memory/4688-6-0x00007FFCF17D0000-0x00007FFCF1E07000-memory.dmp

Filesize
6.2MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads