12d3e0fcfc1a918e3dfecc00f306387735af877396974359e36236c78fea6137

General

Target

catalog-278882111.xls
Size

367KB
MD5

0ff6abd132e201c61675b446982cb4d9
SHA1

d56105e9c3a03eb1a7235d219270b251344ad892
SHA256

c4e0273f94893712ddd941d8060f0d26fa222922df40cd4fcc0cbc4d92888b94
SHA512

60b2b7641c6d00a7e21a72ae2e1cabd688dbc2f13c5e91264ace4b4de96f38a6afeb6980190428359cfffedde8b4d93a35eb7409d9c9879c75a0e1cbd7cd211a

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	1060	4024	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3832	4024	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\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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

4024 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
4024	EXCEL.EXE
4024	EXCEL.EXE
4024	EXCEL.EXE
4024	EXCEL.EXE
4024	EXCEL.EXE
4024	EXCEL.EXE
4024	EXCEL.EXE
4024	EXCEL.EXE
4024	EXCEL.EXE
4024	EXCEL.EXE
4024	EXCEL.EXE
4024	EXCEL.EXE
4024	EXCEL.EXE
4024	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 4024 wrote to memory of 1060	4024	EXCEL.EXE	rundll32.exe
PID 4024 wrote to memory of 1060	4024	EXCEL.EXE	rundll32.exe
PID 4024 wrote to memory of 3832	4024	EXCEL.EXE	rundll32.exe
PID 4024 wrote to memory of 3832	4024	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-278882111.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4024

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1060

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3832

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/1060-179-0x0000000000000000-mapping.dmp

Download
memory/3832-180-0x0000000000000000-mapping.dmp

Download
memory/4024-114-0x00007FF75EC70000-0x00007FF762226000-memory.dmp

Filesize
53.7MB

Download
memory/4024-115-0x00007FFA892C0000-0x00007FFA892D0000-memory.dmp

Filesize
64KB

Download
memory/4024-116-0x00007FFA892C0000-0x00007FFA892D0000-memory.dmp

Filesize
64KB

Download
memory/4024-117-0x00007FFA892C0000-0x00007FFA892D0000-memory.dmp

Filesize
64KB

Download
memory/4024-118-0x00007FFA892C0000-0x00007FFA892D0000-memory.dmp

Filesize
64KB

Download
memory/4024-121-0x00007FFA892C0000-0x00007FFA892D0000-memory.dmp

Filesize
64KB

Download
memory/4024-122-0x00007FFAA9D20000-0x00007FFAAAE0E000-memory.dmp

Filesize
16.9MB

Download
memory/4024-123-0x000002BC258F0000-0x000002BC277E5000-memory.dmp

Filesize
31.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads