8a976336e807b03cf0209c424171dcb9b21e57b15618a81577212bfa13c9d921

General

Target

document-61746150.xls
Size

139KB
MD5

5de27c2f774acc114538fd872b44ebf5
SHA1

db674003241ed8a426aa7c3538f8423dae0d9751
SHA256

8a976336e807b03cf0209c424171dcb9b21e57b15618a81577212bfa13c9d921
SHA512

61abd2f0a1ffe5f33deb3315e405f6668ccc2e85162b2e62b6111324ffff200799e64eba64f17572639f4af3b4233b3d4eb4a7e39bd54269c32311488d3acae6

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

rundll32.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	1532	496	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

496 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

496 EXCEL.EXE
496 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE
496	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description pid process target process

PID 496 wrote to memory of 1532 496 EXCEL.EXE rundll32.exe
PID 496 wrote to memory of 1532 496 EXCEL.EXE rundll32.exe

description	pid	process	target process
PID 496 wrote to memory of 1532	496	EXCEL.EXE	rundll32.exe
PID 496 wrote to memory of 1532	496	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\document-61746150.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:496

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\zfbfg.ere,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1532

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/496-2-0x00007FF7DFCE0000-0x00007FF7DFCF0000-memory.dmp

Filesize
64KB

Download
memory/496-3-0x00007FF7DFCE0000-0x00007FF7DFCF0000-memory.dmp

Filesize
64KB

Download
memory/496-4-0x00007FF7DFCE0000-0x00007FF7DFCF0000-memory.dmp

Filesize
64KB

Download
memory/496-6-0x00007FF7DFCE0000-0x00007FF7DFCF0000-memory.dmp

Filesize
64KB

Download
memory/496-5-0x00007FF803060000-0x00007FF803697000-memory.dmp

Filesize
6.2MB

Download
memory/1532-7-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads