8288235075d2f70e4d7a9e2ed121214ec32674ba8dd15c9f6e25ba9396af0cc9

General

Target

catalog-2084872052.xls
Size

367KB
MD5

462b8e4aef06cfea1f858e9d44f111df
SHA1

c963d7d8a19de64cfde44f6dc496e799d1d8e39f
SHA256

a45bc9e83209a1bbd5ff5b69ba1671a537183db2ccdb12572ee711d32404c5a9
SHA512

9dafd489baf4d82e037efde398cb5ed3916e3f6211248b2ade62cb712f4cb631f3c83e74ff7ea3fc0ebb522a98cfc6077bfd4d79d2d724fe44a27c7bed234f59

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	1644	1456	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	604	1456	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

1456 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1456 wrote to memory of 1644	1456	EXCEL.EXE	rundll32.exe
PID 1456 wrote to memory of 1644	1456	EXCEL.EXE	rundll32.exe
PID 1456 wrote to memory of 604	1456	EXCEL.EXE	rundll32.exe
PID 1456 wrote to memory of 604	1456	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-2084872052.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1456

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1644

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:604

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/604-180-0x0000000000000000-mapping.dmp

Download
memory/1456-114-0x00007FF619A50000-0x00007FF61D006000-memory.dmp

Filesize
53.7MB

Download
memory/1456-115-0x00007FF882460000-0x00007FF882470000-memory.dmp

Filesize
64KB

Download
memory/1456-116-0x00007FF882460000-0x00007FF882470000-memory.dmp

Filesize
64KB

Download
memory/1456-117-0x00007FF882460000-0x00007FF882470000-memory.dmp

Filesize
64KB

Download
memory/1456-118-0x00007FF882460000-0x00007FF882470000-memory.dmp

Filesize
64KB

Download
memory/1456-121-0x00007FF882460000-0x00007FF882470000-memory.dmp

Filesize
64KB

Download
memory/1456-122-0x00007FF8A2A50000-0x00007FF8A3B3E000-memory.dmp

Filesize
16.9MB

Download
memory/1456-123-0x00007FF8A0B50000-0x00007FF8A2A45000-memory.dmp

Filesize
31.0MB

Download
memory/1644-179-0x0000000000000000-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