fdda71198f187373f0ce4ee0da393ff09c1efd566fd43d6a29be653b176cf38b

General

Target

catalog-2144681670.xls
Size

367KB
MD5

6e960dae73245ebca349f9c731b3c31d
SHA1

ba6eefa2b94aa93fc339a7a82387c98868c7dfd2
SHA256

909e36e5cb85d6175de3897595fef42d7f507179eaf7262a3b7056f08231e3bf
SHA512

19dcde2a7a0644aadf7067ab6bf66b1f08542ce564ae407d3f0101d4de2967b04d65a515fe3e2c78dac4665919243b836dcb42c04b6d9732444794600c11016f

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	2164	1892	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2080	1892	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

1892 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1892 wrote to memory of 2164	1892	EXCEL.EXE	rundll32.exe
PID 1892 wrote to memory of 2164	1892	EXCEL.EXE	rundll32.exe
PID 1892 wrote to memory of 2080	1892	EXCEL.EXE	rundll32.exe
PID 1892 wrote to memory of 2080	1892	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-2144681670.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1892

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:2164

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:2080

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/1892-114-0x00007FF7FC300000-0x00007FF7FF8B6000-memory.dmp

Filesize
53.7MB

Download
memory/1892-115-0x00007FF8CDBE0000-0x00007FF8CDBF0000-memory.dmp

Filesize
64KB

Download
memory/1892-116-0x00007FF8CDBE0000-0x00007FF8CDBF0000-memory.dmp

Filesize
64KB

Download
memory/1892-117-0x00007FF8CDBE0000-0x00007FF8CDBF0000-memory.dmp

Filesize
64KB

Download
memory/1892-118-0x00007FF8CDBE0000-0x00007FF8CDBF0000-memory.dmp

Filesize
64KB

Download
memory/1892-121-0x00007FF8EE730000-0x00007FF8EF81E000-memory.dmp

Filesize
16.9MB

Download
memory/1892-122-0x00007FF8CDBE0000-0x00007FF8CDBF0000-memory.dmp

Filesize
64KB

Download
memory/1892-123-0x000001EB66FC0000-0x000001EB68EB5000-memory.dmp

Filesize
31.0MB

Download
memory/2080-180-0x0000000000000000-mapping.dmp

Download
memory/2164-179-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads