53762e0edac9d950447b9c55d53b1aa224e8903f69a6f6fa1fe6eb76c3171365

General

Target

Cancellation-1376764675-03112021.xls
Size

277KB
MD5

40a5aaddd126b30b64265ac529798bd0
SHA1

ca0f058f2aa9cc2038cf62efd14d5eb82feaaebd
SHA256

53762e0edac9d950447b9c55d53b1aa224e8903f69a6f6fa1fe6eb76c3171365
SHA512

fa6ef43ce56147e7f5a64dd0b612884dabc19ecb4c5cca40219e3d80db6da2990f39d778b442b3f55e20ba0d0109eebfbdf439a4826b90e424cfbf376d4a53b4

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	1656	652	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1112	652	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3220	652	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2284	652	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	416	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 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

652 EXCEL.EXE

Suspicious use of SetWindowsHookEx 19 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
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 1656	652	EXCEL.EXE	rundll32.exe
PID 652 wrote to memory of 1656	652	EXCEL.EXE	rundll32.exe
PID 652 wrote to memory of 1112	652	EXCEL.EXE	rundll32.exe
PID 652 wrote to memory of 1112	652	EXCEL.EXE	rundll32.exe
PID 652 wrote to memory of 3220	652	EXCEL.EXE	rundll32.exe
PID 652 wrote to memory of 3220	652	EXCEL.EXE	rundll32.exe
PID 652 wrote to memory of 2284	652	EXCEL.EXE	rundll32.exe
PID 652 wrote to memory of 2284	652	EXCEL.EXE	rundll32.exe
PID 652 wrote to memory of 416	652	EXCEL.EXE	rundll32.exe
PID 652 wrote to memory of 416	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-1376764675-03112021.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:1656

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Runtime.brok1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1112

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Runtime.brok2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3220

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Runtime.brok3,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:2284

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Runtime.brok4,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:416

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

Replay Monitor

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Downloads

memory/416-11-0x0000000000000000-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/652-6-0x00007FFC33D00000-0x00007FFC34337000-memory.dmp

Filesize
6.2MB

Download
memory/1112-8-0x0000000000000000-mapping.dmp

Download
memory/1656-7-0x0000000000000000-mapping.dmp

Download
memory/2284-10-0x0000000000000000-mapping.dmp

Download
memory/3220-9-0x0000000000000000-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