2bea5641e716e91b2d158a476513001851456c57b855204397f7cac85e834251

General

Target

catalog-2002069022.xls
Size

367KB
MD5

8067b47ed46d73edffb43a227bfe6505
SHA1

9970f06b1f7a870143260f37f73ba165caa1ee9f
SHA256

290eb3b5b1c07d56e466212d7078f2e858edfb85bddb72891e841a5e6d8acbb2
SHA512

7ceb35763cb35fdfed083daceef3a7bb474112b6f2c7e8031f50c50e18e46d6fc472cf288198ef50a5e9610f4e9b4bc8831584129a56cb5e2495b24a496ca2d3

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	2360	4660	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2616	4660	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

4660 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
4660	EXCEL.EXE
4660	EXCEL.EXE
4660	EXCEL.EXE
4660	EXCEL.EXE
4660	EXCEL.EXE
4660	EXCEL.EXE
4660	EXCEL.EXE
4660	EXCEL.EXE
4660	EXCEL.EXE
4660	EXCEL.EXE
4660	EXCEL.EXE
4660	EXCEL.EXE
4660	EXCEL.EXE
4660	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 4660 wrote to memory of 2360	4660	EXCEL.EXE	rundll32.exe
PID 4660 wrote to memory of 2360	4660	EXCEL.EXE	rundll32.exe
PID 4660 wrote to memory of 2616	4660	EXCEL.EXE	rundll32.exe
PID 4660 wrote to memory of 2616	4660	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-2002069022.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4660

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:2360

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:2616

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

Loading Replay Monitor...

Downloads

memory/2360-179-0x0000000000000000-mapping.dmp

Download
memory/2616-180-0x0000000000000000-mapping.dmp

Download
memory/4660-114-0x00007FF66A490000-0x00007FF66DA46000-memory.dmp

Filesize
53.7MB

Download
memory/4660-115-0x00007FFA38500000-0x00007FFA38510000-memory.dmp

Filesize
64KB

Download
memory/4660-116-0x00007FFA38500000-0x00007FFA38510000-memory.dmp

Filesize
64KB

Download
memory/4660-117-0x00007FFA38500000-0x00007FFA38510000-memory.dmp

Filesize
64KB

Download
memory/4660-118-0x00007FFA38500000-0x00007FFA38510000-memory.dmp

Filesize
64KB

Download
memory/4660-119-0x00007FFA38500000-0x00007FFA38510000-memory.dmp

Filesize
64KB

Download
memory/4660-122-0x00007FFA58E30000-0x00007FFA59F1E000-memory.dmp

Filesize
16.9MB

Download
memory/4660-123-0x00000146057B0000-0x00000146076A5000-memory.dmp

Filesize
31.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads