37541b5a97a391ff41221a8486d206db6263686950825780eaec989113bddff7

General

Target

Cancellation-1331722858-03112021.xls
Size

277KB
MD5

f75980b86bd6ec72bec67a45a9e424bd
SHA1

59cb624ef59997a09c76f5e76f666835ce93536b
SHA256

37541b5a97a391ff41221a8486d206db6263686950825780eaec989113bddff7
SHA512

3372aee962e66443c7fe175fc397bd9bdd1a43ee55a979720a4872cf183b8caf35a87a75530eaa7bde100c6dcdabcec5f8bcdaff9e0328ebffce05663fe6b8a8

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 5 IoCs

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

Processes:

rundll32.exerundll32.exerundll32.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	1832	652	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3388	652	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	396	652	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3020	652	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1656	652	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

652 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE
652	EXCEL.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 652 wrote to memory of 1832	652	EXCEL.EXE	rundll32.exe
PID 652 wrote to memory of 1832	652	EXCEL.EXE	rundll32.exe
PID 652 wrote to memory of 3388	652	EXCEL.EXE	rundll32.exe
PID 652 wrote to memory of 3388	652	EXCEL.EXE	rundll32.exe
PID 652 wrote to memory of 396	652	EXCEL.EXE	rundll32.exe
PID 652 wrote to memory of 396	652	EXCEL.EXE	rundll32.exe
PID 652 wrote to memory of 3020	652	EXCEL.EXE	rundll32.exe
PID 652 wrote to memory of 3020	652	EXCEL.EXE	rundll32.exe
PID 652 wrote to memory of 1656	652	EXCEL.EXE	rundll32.exe
PID 652 wrote to memory of 1656	652	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\Cancellation-1331722858-03112021.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:652

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Runtime.brok,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1832

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Runtime.brok1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3388

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Runtime.brok2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:396

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Runtime.brok3,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3020

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Runtime.brok4,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1656

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/396-9-0x0000000000000000-mapping.dmp

Download
memory/652-2-0x00007FFC10600000-0x00007FFC10610000-memory.dmp

Filesize
64KB

Download
memory/652-3-0x00007FFC10600000-0x00007FFC10610000-memory.dmp

Filesize
64KB

Download
memory/652-4-0x00007FFC10600000-0x00007FFC10610000-memory.dmp

Filesize
64KB

Download
memory/652-5-0x00007FFC10600000-0x00007FFC10610000-memory.dmp

Filesize
64KB

Download
memory/652-6-0x00007FFC33CD0000-0x00007FFC34307000-memory.dmp

Filesize
6.2MB

Download
memory/1656-11-0x0000000000000000-mapping.dmp

Download
memory/1832-7-0x0000000000000000-mapping.dmp

Download
memory/3020-10-0x0000000000000000-mapping.dmp

Download
memory/3388-8-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads