87ff7fe0ce85c32f7c4080714a75c709dd334d7c5f2a0344c108cfb146ed93de

General

Target

catalog-2108526620.xls
Size

367KB
MD5

06c387ee3645fef3c674a6904faf84ba
SHA1

f395ed424c6c27e0f6a892a16d7e5f088202c9a0
SHA256

8626acd732f4ff0d8ac163caf598bb64cba245289c31d7c468cb86ac96ff7fa1
SHA512

2f80fea186e814c0b73daac80484e69ba9c4dbc6a3cd43cf521ed3773498d5af2c35ac76a02b24700859e1d220cfa4e9c80e2e62fdc5f7a91b73cec213ba564f

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	1072	660	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2536	660	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

660 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
660	EXCEL.EXE
660	EXCEL.EXE
660	EXCEL.EXE
660	EXCEL.EXE
660	EXCEL.EXE
660	EXCEL.EXE
660	EXCEL.EXE
660	EXCEL.EXE
660	EXCEL.EXE
660	EXCEL.EXE
660	EXCEL.EXE
660	EXCEL.EXE
660	EXCEL.EXE
660	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 660 wrote to memory of 1072	660	EXCEL.EXE	rundll32.exe
PID 660 wrote to memory of 1072	660	EXCEL.EXE	rundll32.exe
PID 660 wrote to memory of 2536	660	EXCEL.EXE	rundll32.exe
PID 660 wrote to memory of 2536	660	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-2108526620.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:660

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1072

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:2536

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/660-114-0x00007FF62F870000-0x00007FF632E26000-memory.dmp

Filesize
53.7MB

Download
memory/660-115-0x00007FFDB5990000-0x00007FFDB59A0000-memory.dmp

Filesize
64KB

Download
memory/660-116-0x00007FFDB5990000-0x00007FFDB59A0000-memory.dmp

Filesize
64KB

Download
memory/660-117-0x00007FFDB5990000-0x00007FFDB59A0000-memory.dmp

Filesize
64KB

Download
memory/660-118-0x00007FFDB5990000-0x00007FFDB59A0000-memory.dmp

Filesize
64KB

Download
memory/660-121-0x00007FFDB5990000-0x00007FFDB59A0000-memory.dmp

Filesize
64KB

Download
memory/660-122-0x00007FFDD5E60000-0x00007FFDD6F4E000-memory.dmp

Filesize
16.9MB

Download
memory/660-123-0x000002AA8FD40000-0x000002AA91C35000-memory.dmp

Filesize
31.0MB

Download
memory/1072-179-0x0000000000000000-mapping.dmp

Download
memory/2536-180-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads