fd45756836d92f556fea7afda23a9e39f1f325ae388dd3e89170d8de55937ecc

General

Target

catalog-247243045.xls
Size

367KB
MD5

5a339b13301e1f65ca07773534dc13eb
SHA1

15e6552112a87436b0e849f7c9800e94e8296e33
SHA256

17f0dba4048c1f6809e831e08caed28a75d95eed377ef3855a7a01f740956aa7
SHA512

f68548e4235ced77e3e224b38421955565e602ffed228948c8588398fd111dc381836bef6cf59ed71ea9d255d8c152ef6a1e9f045241ef367c0b80410d3df809

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	3972	3736	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4080	3736	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

3736 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
3736	EXCEL.EXE
3736	EXCEL.EXE
3736	EXCEL.EXE
3736	EXCEL.EXE
3736	EXCEL.EXE
3736	EXCEL.EXE
3736	EXCEL.EXE
3736	EXCEL.EXE
3736	EXCEL.EXE
3736	EXCEL.EXE
3736	EXCEL.EXE
3736	EXCEL.EXE
3736	EXCEL.EXE
3736	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3736 wrote to memory of 3972	3736	EXCEL.EXE	rundll32.exe
PID 3736 wrote to memory of 3972	3736	EXCEL.EXE	rundll32.exe
PID 3736 wrote to memory of 4080	3736	EXCEL.EXE	rundll32.exe
PID 3736 wrote to memory of 4080	3736	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-247243045.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3736

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3972

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:4080

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/3736-114-0x00007FF74FAA0000-0x00007FF753056000-memory.dmp

Filesize
53.7MB

Download
memory/3736-115-0x00007FF9B87B0000-0x00007FF9B87C0000-memory.dmp

Filesize
64KB

Download
memory/3736-116-0x00007FF9B87B0000-0x00007FF9B87C0000-memory.dmp

Filesize
64KB

Download
memory/3736-117-0x00007FF9B87B0000-0x00007FF9B87C0000-memory.dmp

Filesize
64KB

Download
memory/3736-118-0x00007FF9B87B0000-0x00007FF9B87C0000-memory.dmp

Filesize
64KB

Download
memory/3736-120-0x00007FF9B87B0000-0x00007FF9B87C0000-memory.dmp

Filesize
64KB

Download
memory/3736-122-0x00007FF9D92C0000-0x00007FF9DA3AE000-memory.dmp

Filesize
16.9MB

Download
memory/3736-123-0x00007FF9D73C0000-0x00007FF9D92B5000-memory.dmp

Filesize
31.0MB

Download
memory/3972-179-0x0000000000000000-mapping.dmp

Download
memory/4080-180-0x0000000000000000-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