1250c05520d45f775c7ca6301db3181c40db77a800ba82c6bac659740ee6122b

General

Target

catalog-2080064519.xls
Size

367KB
MD5

9dfabbf6638dd1532e5041e6e37bc900
SHA1

b959cc30028b9a0c4a1b5d60b865ed0801bd6c80
SHA256

778d9e7a4e6dbe6a82fe73e02ea0d5c54ddb5881929f19a2e832b57b4c6634eb
SHA512

ce7f420b7c930b467f20940e96cdcae590e62db84d8b1948cd29589f4667780ae6d543f40ba0f1b33dc40f31c36f9e59d6e8e8447ab2ec04033d82076356667a

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	3164	4068	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3964	4068	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

4068 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
4068	EXCEL.EXE
4068	EXCEL.EXE
4068	EXCEL.EXE
4068	EXCEL.EXE
4068	EXCEL.EXE
4068	EXCEL.EXE
4068	EXCEL.EXE
4068	EXCEL.EXE
4068	EXCEL.EXE
4068	EXCEL.EXE
4068	EXCEL.EXE
4068	EXCEL.EXE
4068	EXCEL.EXE
4068	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 4068 wrote to memory of 3164	4068	EXCEL.EXE	rundll32.exe
PID 4068 wrote to memory of 3164	4068	EXCEL.EXE	rundll32.exe
PID 4068 wrote to memory of 3964	4068	EXCEL.EXE	rundll32.exe
PID 4068 wrote to memory of 3964	4068	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-2080064519.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4068

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3164

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3964

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/3164-179-0x0000000000000000-mapping.dmp

Download
memory/3964-180-0x0000000000000000-mapping.dmp

Download
memory/4068-114-0x00007FF719CF0000-0x00007FF71D2A6000-memory.dmp

Filesize
53.7MB

Download
memory/4068-115-0x00007FFDA2790000-0x00007FFDA27A0000-memory.dmp

Filesize
64KB

Download
memory/4068-116-0x00007FFDA2790000-0x00007FFDA27A0000-memory.dmp

Filesize
64KB

Download
memory/4068-117-0x00007FFDA2790000-0x00007FFDA27A0000-memory.dmp

Filesize
64KB

Download
memory/4068-118-0x00007FFDA2790000-0x00007FFDA27A0000-memory.dmp

Filesize
64KB

Download
memory/4068-121-0x00007FFDC32D0000-0x00007FFDC43BE000-memory.dmp

Filesize
16.9MB

Download
memory/4068-123-0x00007FFDA2790000-0x00007FFDA27A0000-memory.dmp

Filesize
64KB

Download
memory/4068-122-0x00007FFDC11F0000-0x00007FFDC30E5000-memory.dmp

Filesize
31.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads