fb7cec46dc7438be5a5e9774f1a6e675bfd526cc52ce7af2daebd19f9feae2ed

General

Target

catalog-302819507.xls
Size

367KB
MD5

7cd289674eb32dd66ca11eb987b0ea23
SHA1

75fa773c49265152ee07a41f878ac8a31d232f51
SHA256

741afede521126dd9b5ee2dcf538c0e1ee2feea11c7355ad3c12dd2e464fdcf9
SHA512

244037f410611173d99fd6966b7ddac9dd7c0d223d6dbd82d5c8773d41940bfbae2278e16a88400c796b8c82be7e38aae616610d3473955e105f4412ee07b230

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	2948	2116	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2388	2116	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2116 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
2116	EXCEL.EXE
2116	EXCEL.EXE
2116	EXCEL.EXE
2116	EXCEL.EXE
2116	EXCEL.EXE
2116	EXCEL.EXE
2116	EXCEL.EXE
2116	EXCEL.EXE
2116	EXCEL.EXE
2116	EXCEL.EXE
2116	EXCEL.EXE
2116	EXCEL.EXE
2116	EXCEL.EXE
2116	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2116 wrote to memory of 2948	2116	EXCEL.EXE	rundll32.exe
PID 2116 wrote to memory of 2948	2116	EXCEL.EXE	rundll32.exe
PID 2116 wrote to memory of 2388	2116	EXCEL.EXE	rundll32.exe
PID 2116 wrote to memory of 2388	2116	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-302819507.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2116

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:2948

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:2388

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

Loading Replay Monitor...

Downloads

memory/2116-114-0x00007FF668F00000-0x00007FF66C4B6000-memory.dmp

Filesize
53.7MB

Download
memory/2116-115-0x00007FF8383E0000-0x00007FF8383F0000-memory.dmp

Filesize
64KB

Download
memory/2116-116-0x00007FF8383E0000-0x00007FF8383F0000-memory.dmp

Filesize
64KB

Download
memory/2116-117-0x00007FF8383E0000-0x00007FF8383F0000-memory.dmp

Filesize
64KB

Download
memory/2116-118-0x00007FF8383E0000-0x00007FF8383F0000-memory.dmp

Filesize
64KB

Download
memory/2116-121-0x00007FF858F10000-0x00007FF859FFE000-memory.dmp

Filesize
16.9MB

Download
memory/2116-122-0x00007FF8383E0000-0x00007FF8383F0000-memory.dmp

Filesize
64KB

Download
memory/2116-123-0x0000016496920000-0x0000016498815000-memory.dmp

Filesize
31.0MB

Download
memory/2388-180-0x0000000000000000-mapping.dmp

Download
memory/2948-179-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads