4e590d2889ad8e5e8baf2fc4f57ce42903141218b28d9a5ebff7db9aa6620bd1

General

Target

document-682448711.xls
Size

85KB
MD5

4bfd284e3081e30bd03f1bcce136620a
SHA1

2597ec2e8ad786504259d6702f8f0bfbc7bf29a0
SHA256

f2922f4bd36c24f3ac4f4a623382babfcd9644c17432364ab4ad42b01618d48e
SHA512

5f9acbcc6656397634da3cb562e52b06170502f857b7a7717a37138c566ab5d7194b6b1491d4af3bf9406d425fcb5263ac9fd200e099718f6d66212f892bc300

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	4184	4632	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

4632 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

4632 EXCEL.EXE
4632 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4632	EXCEL.EXE
4632	EXCEL.EXE
4632	EXCEL.EXE
4632	EXCEL.EXE
4632	EXCEL.EXE
4632	EXCEL.EXE
4632	EXCEL.EXE
4632	EXCEL.EXE
4632	EXCEL.EXE
4632	EXCEL.EXE
4632	EXCEL.EXE
4632	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 4632 wrote to memory of 4184	4632	EXCEL.EXE	rundll32.exe
PID 4632 wrote to memory of 4184	4632	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-682448711.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:4632

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\IEUDLK.CJF,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:4184

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/4184-7-0x0000000000000000-mapping.dmp

Download
memory/4632-2-0x00007FF9A2350000-0x00007FF9A2360000-memory.dmp

Filesize
64KB

Download
memory/4632-3-0x00007FF9A2350000-0x00007FF9A2360000-memory.dmp

Filesize
64KB

Download
memory/4632-4-0x00007FF9A2350000-0x00007FF9A2360000-memory.dmp

Filesize
64KB

Download
memory/4632-5-0x00007FF9C91A0000-0x00007FF9C97D7000-memory.dmp

Filesize
6.2MB

Download
memory/4632-6-0x00007FF9A2350000-0x00007FF9A2360000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads