d5ab86b3c119a19fab929700b85a9283429c24b897cb14bae395899f334371fb

General

Target

catalog-2092578801.xls
Size

367KB
MD5

ddbb7fcf608649aafaf9c1a468093f0b
SHA1

b9ebbf6ac9fb14c2f070fcbc445ad951ed16bb67
SHA256

2952cd1f5f7cdcaedff7b14fd16ee96f4b9a41a1651edc9330a5e4129880cb7e
SHA512

2e07adbc1c743b4e2142a1d82d50f4b1f6e5bbd7dfa85d085835458cd7b0c5520cf021339c3cc68ecdafbed5af85e920edc07c110770d4cce25d25e5efd8d1a6

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	2348	3656	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1908	3656	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

3656 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
3656	EXCEL.EXE
3656	EXCEL.EXE
3656	EXCEL.EXE
3656	EXCEL.EXE
3656	EXCEL.EXE
3656	EXCEL.EXE
3656	EXCEL.EXE
3656	EXCEL.EXE
3656	EXCEL.EXE
3656	EXCEL.EXE
3656	EXCEL.EXE
3656	EXCEL.EXE
3656	EXCEL.EXE
3656	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3656 wrote to memory of 2348	3656	EXCEL.EXE	rundll32.exe
PID 3656 wrote to memory of 2348	3656	EXCEL.EXE	rundll32.exe
PID 3656 wrote to memory of 1908	3656	EXCEL.EXE	rundll32.exe
PID 3656 wrote to memory of 1908	3656	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-2092578801.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3656

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:2348

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1908

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

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Downloads

memory/1908-180-0x0000000000000000-mapping.dmp

Download
memory/2348-179-0x0000000000000000-mapping.dmp

Download
memory/3656-114-0x00007FF711840000-0x00007FF714DF6000-memory.dmp

Filesize
53.7MB

Download
memory/3656-115-0x00007FF85A170000-0x00007FF85A180000-memory.dmp

Filesize
64KB

Download
memory/3656-116-0x00007FF85A170000-0x00007FF85A180000-memory.dmp

Filesize
64KB

Download
memory/3656-117-0x00007FF85A170000-0x00007FF85A180000-memory.dmp

Filesize
64KB

Download
memory/3656-118-0x00007FF85A170000-0x00007FF85A180000-memory.dmp

Filesize
64KB

Download
memory/3656-121-0x00007FF85A170000-0x00007FF85A180000-memory.dmp

Filesize
64KB

Download
memory/3656-122-0x00007FF87ABF0000-0x00007FF87BCDE000-memory.dmp

Filesize
16.9MB

Download
memory/3656-123-0x00007FF878CF0000-0x00007FF87ABE5000-memory.dmp

Filesize
31.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads