3c7c1245a4074e8b743e196f3395c435d7f77d395bd9a860c45f05f331629a24

General

Target

catalog-2005820118.xls
Size

367KB
MD5

29705062863dfd8816d9ea578aab78fd
SHA1

40c270973f51fbba0b4bf1b54b0fe2a5512d2954
SHA256

447579b3f72198ff1cdb35da46c870a10997f4719d7f92bc943cad5018abc5c8
SHA512

9cc415d854b445782da55d18080e8d21e06ae9d74236bfe1993b0417a9fb7eac9d3fa7e1add44dbec3ecb4e76b96df6188f11857d94b826fde9b138b2212c92c

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	540	808	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3180	808	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\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

808 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
808	EXCEL.EXE
808	EXCEL.EXE
808	EXCEL.EXE
808	EXCEL.EXE
808	EXCEL.EXE
808	EXCEL.EXE
808	EXCEL.EXE
808	EXCEL.EXE
808	EXCEL.EXE
808	EXCEL.EXE
808	EXCEL.EXE
808	EXCEL.EXE
808	EXCEL.EXE
808	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 808 wrote to memory of 540	808	EXCEL.EXE	rundll32.exe
PID 808 wrote to memory of 540	808	EXCEL.EXE	rundll32.exe
PID 808 wrote to memory of 3180	808	EXCEL.EXE	rundll32.exe
PID 808 wrote to memory of 3180	808	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-2005820118.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:808

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:540

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3180

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

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Downloads

memory/540-179-0x0000000000000000-mapping.dmp

Download
memory/808-114-0x00007FF6EC200000-0x00007FF6EF7B6000-memory.dmp

Filesize
53.7MB

Download
memory/808-115-0x00007FF999990000-0x00007FF9999A0000-memory.dmp

Filesize
64KB

Download
memory/808-116-0x00007FF999990000-0x00007FF9999A0000-memory.dmp

Filesize
64KB

Download
memory/808-117-0x00007FF999990000-0x00007FF9999A0000-memory.dmp

Filesize
64KB

Download
memory/808-118-0x00007FF999990000-0x00007FF9999A0000-memory.dmp

Filesize
64KB

Download
memory/808-121-0x00007FF9BA4C0000-0x00007FF9BB5AE000-memory.dmp

Filesize
16.9MB

Download
memory/808-122-0x00007FF999990000-0x00007FF9999A0000-memory.dmp

Filesize
64KB

Download
memory/808-123-0x00007FF9B85C0000-0x00007FF9BA4B5000-memory.dmp

Filesize
31.0MB

Download
memory/3180-180-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads