30d2488710a4a885c4b798640d6870eb10abf2ae534ec9bfe8ddf166027d4f8c

General

Target

catalog-2002232164.xls
Size

367KB
MD5

740afe8f08e59bc76ddaccba4610faa2
SHA1

ee058b2b1cb7b4a5dc516e0ca3eca388bd95a4a0
SHA256

c0effea729b6b3d23ab4ba70a0c45bf48a6babde269baa3d3ad2587f19006f31
SHA512

f628516016447f9d8425dea67d0cfc6ebadd95d838f52aa1fc5f67861eaad71d7589d14f3480375f40e47f3b99471991b17342e4098fa654bd2d5433dad3f926

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 2 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

rundll32.exerundll32.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	640	2988	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3924	2988	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

2988 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

2988 EXCEL.EXE
2988 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
2988	EXCEL.EXE
2988	EXCEL.EXE
2988	EXCEL.EXE
2988	EXCEL.EXE
2988	EXCEL.EXE
2988	EXCEL.EXE
2988	EXCEL.EXE
2988	EXCEL.EXE
2988	EXCEL.EXE
2988	EXCEL.EXE
2988	EXCEL.EXE
2988	EXCEL.EXE
2988	EXCEL.EXE
2988	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2988 wrote to memory of 640	2988	EXCEL.EXE	rundll32.exe
PID 2988 wrote to memory of 640	2988	EXCEL.EXE	rundll32.exe
PID 2988 wrote to memory of 3924	2988	EXCEL.EXE	rundll32.exe
PID 2988 wrote to memory of 3924	2988	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\catalog-2002232164.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:2988
- C:\Windows\SYSTEM32\rundll32.exe
  rundll32 ..\tuti.rut,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:640
- C:\Windows\SYSTEM32\rundll32.exe
  rundll32 ..\tuti.rut1,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:3924

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

Replay Monitor

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Downloads

memory/640-179-0x0000000000000000-mapping.dmp

Download
memory/2988-114-0x00007FF759B90000-0x00007FF75D146000-memory.dmp

Filesize
53.7MB

Download
memory/2988-115-0x00007FFFBE230000-0x00007FFFBE240000-memory.dmp

Filesize
64KB

Download
memory/2988-116-0x00007FFFBE230000-0x00007FFFBE240000-memory.dmp

Filesize
64KB

Download
memory/2988-117-0x00007FFFBE230000-0x00007FFFBE240000-memory.dmp

Filesize
64KB

Download
memory/2988-118-0x00007FFFBE230000-0x00007FFFBE240000-memory.dmp

Filesize
64KB

Download
memory/2988-121-0x00007FFFBE230000-0x00007FFFBE240000-memory.dmp

Filesize
64KB

Download
memory/2988-122-0x00007FFFDE7B0000-0x00007FFFDF89E000-memory.dmp

Filesize
16.9MB

Download
memory/2988-123-0x00007FFFDC8B0000-0x00007FFFDE7A5000-memory.dmp

Filesize
31.0MB

Download
memory/3924-180-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads