802bf6f32b0cb1a3fa205a2d41e40302074c18b029b5e86337bf8a8282ba2d83

General

Target

catalog-2130173166.xls
Size

367KB
MD5

53d62280b4357ddc1fd58b0f66201b47
SHA1

c77b029d908a68b23598633f1fe873e28facadab
SHA256

14eb4a357260e2433942963faaccb8fac37ca7bf2c215ffb1b77774da51ce592
SHA512

3f29a42ec44598b0bab7cf7b00c0d71600cedfca6e2ff223ea79bfc066051e46d5ddabb9583d06191a43adb2137072ba576481d2335eaa1448c65092af7758ad

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	368	1852	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3944	1852	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

1852 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE
1852	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1852 wrote to memory of 368	1852	EXCEL.EXE	rundll32.exe
PID 1852 wrote to memory of 368	1852	EXCEL.EXE	rundll32.exe
PID 1852 wrote to memory of 3944	1852	EXCEL.EXE	rundll32.exe
PID 1852 wrote to memory of 3944	1852	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-2130173166.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1852

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:368

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3944

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

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Downloads

memory/368-179-0x0000000000000000-mapping.dmp

Download
memory/1852-114-0x00007FF6EB030000-0x00007FF6EE5E6000-memory.dmp

Filesize
53.7MB

Download
memory/1852-115-0x00007FF9A14A0000-0x00007FF9A14B0000-memory.dmp

Filesize
64KB

Download
memory/1852-116-0x00007FF9A14A0000-0x00007FF9A14B0000-memory.dmp

Filesize
64KB

Download
memory/1852-117-0x00007FF9A14A0000-0x00007FF9A14B0000-memory.dmp

Filesize
64KB

Download
memory/1852-118-0x00007FF9A14A0000-0x00007FF9A14B0000-memory.dmp

Filesize
64KB

Download
memory/1852-121-0x00007FF9C1D20000-0x00007FF9C2E0E000-memory.dmp

Filesize
16.9MB

Download
memory/1852-122-0x00007FF9A14A0000-0x00007FF9A14B0000-memory.dmp

Filesize
64KB

Download
memory/1852-123-0x00007FF9BFE20000-0x00007FF9C1D15000-memory.dmp

Filesize
31.0MB

Download
memory/3944-180-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads