ab6d039ca151b2fb61dd458284ecaee5230ae39f1932d398ae2610a8ef333a27

General

Target

catalog-1997266566.xls
Size

367KB
MD5

8e03e6294a7d1e52e03a59d832b3deb2
SHA1

2cc1e1a0d0e6469cf32052b8126bba5d303abf51
SHA256

2e39fa64a512c09374036965a91f1849967e499f8a390901e4ceb7a9484f2305
SHA512

7285fade26bf02b3a07a9e6abb64ace9ba4eba4ecbde55594609f681309f8111787b0ca881282cb4baab79b64b42ca59d024d80136e04e4d92dc9f8b33665b5b

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	3464	2232	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	424	2232	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

2232 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
2232	EXCEL.EXE
2232	EXCEL.EXE
2232	EXCEL.EXE
2232	EXCEL.EXE
2232	EXCEL.EXE
2232	EXCEL.EXE
2232	EXCEL.EXE
2232	EXCEL.EXE
2232	EXCEL.EXE
2232	EXCEL.EXE
2232	EXCEL.EXE
2232	EXCEL.EXE
2232	EXCEL.EXE
2232	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2232 wrote to memory of 3464	2232	EXCEL.EXE	rundll32.exe
PID 2232 wrote to memory of 3464	2232	EXCEL.EXE	rundll32.exe
PID 2232 wrote to memory of 424	2232	EXCEL.EXE	rundll32.exe
PID 2232 wrote to memory of 424	2232	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-1997266566.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2232

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3464

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:424

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/424-180-0x0000000000000000-mapping.dmp

Download
memory/2232-114-0x00007FF669730000-0x00007FF66CCE6000-memory.dmp

Filesize
53.7MB

Download
memory/2232-115-0x00007FFF77040000-0x00007FFF77050000-memory.dmp

Filesize
64KB

Download
memory/2232-116-0x00007FFF77040000-0x00007FFF77050000-memory.dmp

Filesize
64KB

Download
memory/2232-118-0x00007FFF77040000-0x00007FFF77050000-memory.dmp

Filesize
64KB

Download
memory/2232-117-0x00007FFF77040000-0x00007FFF77050000-memory.dmp

Filesize
64KB

Download
memory/2232-121-0x00007FFF77040000-0x00007FFF77050000-memory.dmp

Filesize
64KB

Download
memory/2232-122-0x00007FFF975E0000-0x00007FFF986CE000-memory.dmp

Filesize
16.9MB

Download
memory/2232-123-0x0000024D55280000-0x0000024D57175000-memory.dmp

Filesize
31.0MB

Download
memory/3464-179-0x0000000000000000-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