16a0c2f741a14c423b7abe293e26f711fdb984fc52064982d874bf310c520b12

General

Target

document-1955896638.xls
Size

85KB
MD5

66e5e724f99a77455e36bca858366e5b
SHA1

aad43897bccde3be594cf89863341050b6eed55a
SHA256

16a0c2f741a14c423b7abe293e26f711fdb984fc52064982d874bf310c520b12
SHA512

e96dd67971cd9e55d37278e65f59060a1f708dc2d841d6aae02bc5440a3c99dc5fcfbebc98b68fea928b4df52ca59679d03af1dca06c553a2fe68a884b056571

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	1496	1276	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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

1276 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

1276 EXCEL.EXE
1276 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
1276	EXCEL.EXE
1276	EXCEL.EXE
1276	EXCEL.EXE
1276	EXCEL.EXE
1276	EXCEL.EXE
1276	EXCEL.EXE
1276	EXCEL.EXE
1276	EXCEL.EXE
1276	EXCEL.EXE
1276	EXCEL.EXE
1276	EXCEL.EXE
1276	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1276 wrote to memory of 1496	1276	EXCEL.EXE	rundll32.exe
PID 1276 wrote to memory of 1496	1276	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-1955896638.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:1276
- C:\Windows\SYSTEM32\rundll32.exe
  rundll32 ..\IEUDLK.CJF,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:1496

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/1276-2-0x00007FFC444D0000-0x00007FFC444E0000-memory.dmp

Filesize
64KB

Download
memory/1276-3-0x00007FFC444D0000-0x00007FFC444E0000-memory.dmp

Filesize
64KB

Download
memory/1276-4-0x00007FFC444D0000-0x00007FFC444E0000-memory.dmp

Filesize
64KB

Download
memory/1276-5-0x00007FFC681C0000-0x00007FFC687F7000-memory.dmp

Filesize
6.2MB

Download
memory/1276-6-0x00007FFC444D0000-0x00007FFC444E0000-memory.dmp

Filesize
64KB

Download
memory/1496-7-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads