1992f327ae291ac03d35c99fac556a6f1d4768a40d85b74c74b6ba470913f963

General

Target

Cancellation-281806389-03112021.xls
Size

277KB
MD5

e4ce78807056e28fc75d9ad01036d0fb
SHA1

b1b83a27b1fab06ad038a560fd2621fa2e34de46
SHA256

1992f327ae291ac03d35c99fac556a6f1d4768a40d85b74c74b6ba470913f963
SHA512

68c208158da964d5d5290fb34aaba33d123b730d6e85437433f745dbb4b41bf57799abbb1fefb68e8f1935c22a0f00784f17f5c61e05be59035533a1e6ceb44f

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	1744	984	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1752	984	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3908	984	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	416	984	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4016	984	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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

984 EXCEL.EXE

Suspicious use of SetWindowsHookEx 18 IoCs

Processes:

EXCEL.EXE

pid	process
984	EXCEL.EXE
984	EXCEL.EXE
984	EXCEL.EXE
984	EXCEL.EXE
984	EXCEL.EXE
984	EXCEL.EXE
984	EXCEL.EXE
984	EXCEL.EXE
984	EXCEL.EXE
984	EXCEL.EXE
984	EXCEL.EXE
984	EXCEL.EXE
984	EXCEL.EXE
984	EXCEL.EXE
984	EXCEL.EXE
984	EXCEL.EXE
984	EXCEL.EXE
984	EXCEL.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 984 wrote to memory of 1744	984	EXCEL.EXE	rundll32.exe
PID 984 wrote to memory of 1744	984	EXCEL.EXE	rundll32.exe
PID 984 wrote to memory of 1752	984	EXCEL.EXE	rundll32.exe
PID 984 wrote to memory of 1752	984	EXCEL.EXE	rundll32.exe
PID 984 wrote to memory of 3908	984	EXCEL.EXE	rundll32.exe
PID 984 wrote to memory of 3908	984	EXCEL.EXE	rundll32.exe
PID 984 wrote to memory of 416	984	EXCEL.EXE	rundll32.exe
PID 984 wrote to memory of 416	984	EXCEL.EXE	rundll32.exe
PID 984 wrote to memory of 4016	984	EXCEL.EXE	rundll32.exe
PID 984 wrote to memory of 4016	984	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-281806389-03112021.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:984

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Runtime.brok,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1744

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Runtime.brok1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1752

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Runtime.brok2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3908

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Runtime.brok3,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:416

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Runtime.brok4,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:4016

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/416-10-0x0000000000000000-mapping.dmp

Download
memory/984-13-0x00007FF8E7720000-0x00007FF8E7730000-memory.dmp

Filesize
64KB

Download
memory/984-3-0x00007FF8E7720000-0x00007FF8E7730000-memory.dmp

Filesize
64KB

Download
memory/984-4-0x00007FF8E7720000-0x00007FF8E7730000-memory.dmp

Filesize
64KB

Download
memory/984-5-0x00007FF90B6B0000-0x00007FF90BCE7000-memory.dmp

Filesize
6.2MB

Download
memory/984-6-0x00007FF8E7720000-0x00007FF8E7730000-memory.dmp

Filesize
64KB

Download
memory/984-2-0x00007FF8E7720000-0x00007FF8E7730000-memory.dmp

Filesize
64KB

Download
memory/984-15-0x00007FF8E7720000-0x00007FF8E7730000-memory.dmp

Filesize
64KB

Download
memory/984-14-0x00007FF8E7720000-0x00007FF8E7730000-memory.dmp

Filesize
64KB

Download
memory/984-12-0x00007FF8E7720000-0x00007FF8E7730000-memory.dmp

Filesize
64KB

Download
memory/1744-7-0x0000000000000000-mapping.dmp

Download
memory/1752-8-0x0000000000000000-mapping.dmp

Download
memory/3908-9-0x0000000000000000-mapping.dmp

Download
memory/4016-11-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads