09f89aadd7c1456cad78be98286b61277b3de6eecefb3169ee1953bcbcac13c2

General

Target

document-1427996815.xls
Size

138KB
MD5

1aa8b3abd339038569d7df4fd8e6dc99
SHA1

7bed8cddc2d7a354618bd4839fec50047a84c9b1
SHA256

09f89aadd7c1456cad78be98286b61277b3de6eecefb3169ee1953bcbcac13c2
SHA512

3e65f15c53bbc1a5e487ed06e396123c79cda5e7903644d6f06d92791f44966d3601fad6e62828029ea559276d5614f5d404931b1814107cbba863c13bfdbeef

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	3928	832	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\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

832 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
832	EXCEL.EXE
832	EXCEL.EXE
832	EXCEL.EXE
832	EXCEL.EXE
832	EXCEL.EXE
832	EXCEL.EXE
832	EXCEL.EXE
832	EXCEL.EXE
832	EXCEL.EXE
832	EXCEL.EXE
832	EXCEL.EXE
832	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description pid process target process

PID 832 wrote to memory of 3928 832 EXCEL.EXE rundll32.exe
PID 832 wrote to memory of 3928 832 EXCEL.EXE rundll32.exe

description	pid	process	target process
PID 832 wrote to memory of 3928	832	EXCEL.EXE	rundll32.exe
PID 832 wrote to memory of 3928	832	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-1427996815.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:832

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\zfbfg.ere,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3928

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

Loading Replay Monitor...

Downloads

memory/832-2-0x00007FFACA7F0000-0x00007FFACA800000-memory.dmp

Filesize
64KB

Download
memory/832-3-0x00007FFACA7F0000-0x00007FFACA800000-memory.dmp

Filesize
64KB

Download
memory/832-4-0x00007FFACA7F0000-0x00007FFACA800000-memory.dmp

Filesize
64KB

Download
memory/832-5-0x00007FFACA7F0000-0x00007FFACA800000-memory.dmp

Filesize
64KB

Download
memory/832-6-0x00007FFAEE3A0000-0x00007FFAEE9D7000-memory.dmp

Filesize
6.2MB

Download
memory/3928-7-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads