cceb1943de3fc134601afd9852abedd1395d6969d0c3d77448d1d5ba83f8f7b5

General

Target

CompensationClaim_1458474084_03152021.xls
Size

233KB
MD5

1a9610dd6bbe276109581299f12a8a25
SHA1

8dc20d17ee1e1a8df8ec15f47fdc6989131f3d49
SHA256

8688077ce747fd951e0059760c195bc19ef8a75276a1796645bec13cc76f87e8
SHA512

d2f01cf951cf497940a08f049abc2e51724a358eee3f19015f3464f50eb38083adb4fda92ba9152e9e912a036989a249188a3afbeb584925c92b8681576eb326

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	3828	880	Rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3932	880	Rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3920	880	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

880 EXCEL.EXE

Suspicious use of SetWindowsHookEx 16 IoCs

Processes:

EXCEL.EXE

pid	process
880	EXCEL.EXE
880	EXCEL.EXE
880	EXCEL.EXE
880	EXCEL.EXE
880	EXCEL.EXE
880	EXCEL.EXE
880	EXCEL.EXE
880	EXCEL.EXE
880	EXCEL.EXE
880	EXCEL.EXE
880	EXCEL.EXE
880	EXCEL.EXE
880	EXCEL.EXE
880	EXCEL.EXE
880	EXCEL.EXE
880	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 880 wrote to memory of 3828	880	EXCEL.EXE	Rundll32.exe
PID 880 wrote to memory of 3828	880	EXCEL.EXE	Rundll32.exe
PID 880 wrote to memory of 3932	880	EXCEL.EXE	Rundll32.exe
PID 880 wrote to memory of 3932	880	EXCEL.EXE	Rundll32.exe
PID 880 wrote to memory of 3920	880	EXCEL.EXE	Rundll32.exe
PID 880 wrote to memory of 3920	880	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\CompensationClaim_1458474084_03152021.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:880

C:\Windows\SYSTEM32\Rundll32.exe
Rundll32 ..\SOT.GOT,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3828

C:\Windows\SYSTEM32\Rundll32.exe
Rundll32 ..\SOT.GOT1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3932

C:\Windows\SYSTEM32\Rundll32.exe
Rundll32 ..\SOT.GOT2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3920

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/880-2-0x00007FF920240000-0x00007FF920250000-memory.dmp

Filesize
64KB

Download
memory/880-3-0x00007FF920240000-0x00007FF920250000-memory.dmp

Filesize
64KB

Download
memory/880-4-0x00007FF920240000-0x00007FF920250000-memory.dmp

Filesize
64KB

Download
memory/880-5-0x00007FF920240000-0x00007FF920250000-memory.dmp

Filesize
64KB

Download
memory/880-6-0x00007FF943B30000-0x00007FF944167000-memory.dmp

Filesize
6.2MB

Download
memory/3828-7-0x0000000000000000-mapping.dmp

Download
memory/3920-9-0x0000000000000000-mapping.dmp

Download
memory/3932-8-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads