dcc45c82a484a420888aabe66588cbb1658cb2a7a5cc833b0438fa06ca84a991

General

Target

82025721897_03192021.xlsm
Size

185KB
MD5

e7ab02fc9cf04da25eeb7e7263aefe0d
SHA1

12cdeed8f2c7605ebcb3c7b384b4bad1fd82dbbe
SHA256

dcc45c82a484a420888aabe66588cbb1658cb2a7a5cc833b0438fa06ca84a991
SHA512

06b93502819f0bb0877cbf26108f7aa3261ce192c4bd5e6ac19b0cd956e92f78ca53da0fedd3857426ed9664390d7db5616c92b64a1c6a034e3a4ad94cac64ab

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 3 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

Rundll32.exeRundll32.exeRundll32.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	4496	4772	Rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4508	4772	Rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4484	4772	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 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

4772 EXCEL.EXE

Suspicious use of SetWindowsHookEx 16 IoCs

Processes:

EXCEL.EXE

pid	process
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 4772 wrote to memory of 4496	4772	EXCEL.EXE	Rundll32.exe
PID 4772 wrote to memory of 4496	4772	EXCEL.EXE	Rundll32.exe
PID 4772 wrote to memory of 4508	4772	EXCEL.EXE	Rundll32.exe
PID 4772 wrote to memory of 4508	4772	EXCEL.EXE	Rundll32.exe
PID 4772 wrote to memory of 4484	4772	EXCEL.EXE	Rundll32.exe
PID 4772 wrote to memory of 4484	4772	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\82025721897_03192021.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4772

C:\Windows\SYSTEM32\Rundll32.exe
Rundll32 ..\Kiod.hod,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:4496

C:\Windows\SYSTEM32\Rundll32.exe
Rundll32 ..\Kiod.hod1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:4508

C:\Windows\SYSTEM32\Rundll32.exe
Rundll32 ..\Kiod.hod2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:4484

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/4484-181-0x0000000000000000-mapping.dmp

Download
memory/4496-179-0x0000000000000000-mapping.dmp

Download
memory/4508-180-0x0000000000000000-mapping.dmp

Download
memory/4772-114-0x00007FF71B470000-0x00007FF71EA26000-memory.dmp

Filesize
53.7MB

Download
memory/4772-115-0x00007FF91BD80000-0x00007FF91BD90000-memory.dmp

Filesize
64KB

Download
memory/4772-116-0x00007FF91BD80000-0x00007FF91BD90000-memory.dmp

Filesize
64KB

Download
memory/4772-117-0x00007FF91BD80000-0x00007FF91BD90000-memory.dmp

Filesize
64KB

Download
memory/4772-118-0x00007FF91BD80000-0x00007FF91BD90000-memory.dmp

Filesize
64KB

Download
memory/4772-122-0x00007FF91BD80000-0x00007FF91BD90000-memory.dmp

Filesize
64KB

Download
memory/4772-121-0x00007FF93C780000-0x00007FF93D86E000-memory.dmp

Filesize
16.9MB

Download
memory/4772-123-0x00007FF93A880000-0x00007FF93C775000-memory.dmp

Filesize
31.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads