96aecefbaff73f1c7c607a4a268607311eb3aa4296dc7ec0057d7107fe2b541c

General

Target

document-1653381419.xls
Size

138KB
MD5

0d827c9386c0d1069ebb7e6e6bcd8a12
SHA1

65dffaf4ba296a44df6eee7f3eb468a44eb703c7
SHA256

96aecefbaff73f1c7c607a4a268607311eb3aa4296dc7ec0057d7107fe2b541c
SHA512

249440d08771637fa6907d51fdf7472f0fba050803f5c17ea5785f8acde79d98ac999b0f66ec3caa561c3e49e7ddb4424b2882c4734f9f9c378d3ccad229e3f7

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	1184	744	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

744 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE
744	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description pid process target process

PID 744 wrote to memory of 1184 744 EXCEL.EXE rundll32.exe
PID 744 wrote to memory of 1184 744 EXCEL.EXE rundll32.exe

description	pid	process	target process
PID 744 wrote to memory of 1184	744	EXCEL.EXE	rundll32.exe
PID 744 wrote to memory of 1184	744	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-1653381419.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:744

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\zfbfg.ere,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1184

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/744-2-0x00007FFD4E120000-0x00007FFD4E130000-memory.dmp

Filesize
64KB

Download
memory/744-3-0x00007FFD4E120000-0x00007FFD4E130000-memory.dmp

Filesize
64KB

Download
memory/744-4-0x00007FFD4E120000-0x00007FFD4E130000-memory.dmp

Filesize
64KB

Download
memory/744-5-0x00007FFD4E120000-0x00007FFD4E130000-memory.dmp

Filesize
64KB

Download
memory/744-6-0x00007FFD712E0000-0x00007FFD71917000-memory.dmp

Filesize
6.2MB

Download
memory/1184-7-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads