abc62cd45f49e2a363fc97e4a813ea03fa006d4063652b9e06bd41dfb621ddd3

General

Target

catalog-291206972.xls
Size

367KB
MD5

2ace7f812b812a87db109c09ebdb1b58
SHA1

b6240850c6bd9eed17f936d8c4a950e09afe83c5
SHA256

b5ce168b00c7cf58cad2a9b4f21b1025710dd6921d908f40c7cabd77de877e11
SHA512

3fcfcb979ad0306283e59b9d0970d4d1cd3d7f6d31209a8982c0bfe80d483d774438ec7b638b459d273a8a143cbbd6478ae7c426c759e85222748e47b10c06b1

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	856	2204	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1032	2204	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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

2204 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
2204	EXCEL.EXE
2204	EXCEL.EXE
2204	EXCEL.EXE
2204	EXCEL.EXE
2204	EXCEL.EXE
2204	EXCEL.EXE
2204	EXCEL.EXE
2204	EXCEL.EXE
2204	EXCEL.EXE
2204	EXCEL.EXE
2204	EXCEL.EXE
2204	EXCEL.EXE
2204	EXCEL.EXE
2204	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2204 wrote to memory of 856	2204	EXCEL.EXE	rundll32.exe
PID 2204 wrote to memory of 856	2204	EXCEL.EXE	rundll32.exe
PID 2204 wrote to memory of 1032	2204	EXCEL.EXE	rundll32.exe
PID 2204 wrote to memory of 1032	2204	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-291206972.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2204

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:856

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1032

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

Loading Replay Monitor...

Downloads

memory/856-179-0x0000000000000000-mapping.dmp

Download
memory/1032-180-0x0000000000000000-mapping.dmp

Download
memory/2204-114-0x00007FF60F300000-0x00007FF6128B6000-memory.dmp

Filesize
53.7MB

Download
memory/2204-115-0x00007FF800890000-0x00007FF8008A0000-memory.dmp

Filesize
64KB

Download
memory/2204-116-0x00007FF800890000-0x00007FF8008A0000-memory.dmp

Filesize
64KB

Download
memory/2204-117-0x00007FF800890000-0x00007FF8008A0000-memory.dmp

Filesize
64KB

Download
memory/2204-118-0x00007FF800890000-0x00007FF8008A0000-memory.dmp

Filesize
64KB

Download
memory/2204-119-0x00007FF800890000-0x00007FF8008A0000-memory.dmp

Filesize
64KB

Download
memory/2204-122-0x00007FF820F90000-0x00007FF82207E000-memory.dmp

Filesize
16.9MB

Download
memory/2204-123-0x00007FF81EFD0000-0x00007FF820EC5000-memory.dmp

Filesize
31.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads