6f0b821c187d2613139f9b7b96828e436fd2278091dc1e7173f0c5a955b06110

General

Target

catalog-2079036411.xls
Size

367KB
MD5

2e20f15233d0243d2c9f6aab8cc1eefa
SHA1

2105414687e81930b9c6cc76cdb471ac50c6053e
SHA256

59f5b98be9bc536ddcd9823de632f479f2007867794bc6b9b8b88dec74a43e86
SHA512

e1e10d5c244b517b393fb5397a1b4f255a3bed6a9368eab798e2f0358e8b6e1b29fada43b4e7076c01d8462dadaee4988d16efcacf295bfb73624dc37c4a1eea

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	3508	512	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2804	512	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

512 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
512	EXCEL.EXE
512	EXCEL.EXE
512	EXCEL.EXE
512	EXCEL.EXE
512	EXCEL.EXE
512	EXCEL.EXE
512	EXCEL.EXE
512	EXCEL.EXE
512	EXCEL.EXE
512	EXCEL.EXE
512	EXCEL.EXE
512	EXCEL.EXE
512	EXCEL.EXE
512	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 512 wrote to memory of 3508	512	EXCEL.EXE	rundll32.exe
PID 512 wrote to memory of 3508	512	EXCEL.EXE	rundll32.exe
PID 512 wrote to memory of 2804	512	EXCEL.EXE	rundll32.exe
PID 512 wrote to memory of 2804	512	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-2079036411.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:512

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3508

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:2804

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/512-114-0x00007FF629C00000-0x00007FF62D1B6000-memory.dmp

Filesize
53.7MB

Download
memory/512-115-0x00007FF949B80000-0x00007FF949B90000-memory.dmp

Filesize
64KB

Download
memory/512-116-0x00007FF949B80000-0x00007FF949B90000-memory.dmp

Filesize
64KB

Download
memory/512-117-0x00007FF949B80000-0x00007FF949B90000-memory.dmp

Filesize
64KB

Download
memory/512-118-0x00007FF949B80000-0x00007FF949B90000-memory.dmp

Filesize
64KB

Download
memory/512-121-0x00007FF949B80000-0x00007FF949B90000-memory.dmp

Filesize
64KB

Download
memory/512-122-0x00007FF96A340000-0x00007FF96B42E000-memory.dmp

Filesize
16.9MB

Download
memory/512-123-0x000001E730EE0000-0x000001E732DD5000-memory.dmp

Filesize
31.0MB

Download
memory/2804-180-0x0000000000000000-mapping.dmp

Download
memory/3508-179-0x0000000000000000-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