a7fcf4db18ca60e8cf3db3a2c3e1525e4cf4f2dbee71e24eeb454e95af2d28cb

General

Target

document-352528369.xls
Size

88KB
MD5

bc2c7b5000c97d90fb90ca2ee4b42484
SHA1

7c70c29f8454d23690c4a305c35da5939b2f21da
SHA256

559fd631dce1aaf66ea3ba6590a583c749c92fc95c5eb2e10ef8eeb1ef9f27a0
SHA512

86083eb10ad4cf01fcc556920b4e7cb94741f970d52640977a78efec5ce9f073a4a6acf8303acec42356ec141e6d6f35304b1b14c6daab3c75551b800667bc53

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	516	4776	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

4776 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4776	EXCEL.EXE
4776	EXCEL.EXE
4776	EXCEL.EXE
4776	EXCEL.EXE
4776	EXCEL.EXE
4776	EXCEL.EXE
4776	EXCEL.EXE
4776	EXCEL.EXE
4776	EXCEL.EXE
4776	EXCEL.EXE
4776	EXCEL.EXE
4776	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description pid process target process

PID 4776 wrote to memory of 516 4776 EXCEL.EXE rundll32.exe
PID 4776 wrote to memory of 516 4776 EXCEL.EXE rundll32.exe

description	pid	process	target process
PID 4776 wrote to memory of 516	4776	EXCEL.EXE	rundll32.exe
PID 4776 wrote to memory of 516	4776	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-352528369.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4776

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\idefje.ekfd,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:516

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/516-7-0x0000000000000000-mapping.dmp

Download
memory/4776-2-0x00007FFF21F30000-0x00007FFF21F40000-memory.dmp

Filesize
64KB

Download
memory/4776-3-0x00007FFF21F30000-0x00007FFF21F40000-memory.dmp

Filesize
64KB

Download
memory/4776-4-0x00007FFF21F30000-0x00007FFF21F40000-memory.dmp

Filesize
64KB

Download
memory/4776-5-0x00007FFF46210000-0x00007FFF46847000-memory.dmp

Filesize
6.2MB

Download
memory/4776-6-0x00007FFF21F30000-0x00007FFF21F40000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads