12eefb2e9db0aaebe97ded97ffb7fc192e548f206f857d99e808cdc525d3b7e2

General

Target

catalog-2012680994.xls
Size

367KB
MD5

d9896920b703407e6457a454319eb076
SHA1

ec5ccc2f1e3894d26c15ec251676d187454b1d58
SHA256

544249732ae65649ccbc287050f771e30333a6a47b5f18d848aa96eb7ecadf2e
SHA512

75ec7a2a661f5b2ef0f9009c83bda1d31c967edcf24edfe16632304474c02880cb036c63f33f4e4006794c6e6ced9d5c28e1dd556a77dda5d592502996a61849

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	1828	3896	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1548	3896	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

3896 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
3896	EXCEL.EXE
3896	EXCEL.EXE
3896	EXCEL.EXE
3896	EXCEL.EXE
3896	EXCEL.EXE
3896	EXCEL.EXE
3896	EXCEL.EXE
3896	EXCEL.EXE
3896	EXCEL.EXE
3896	EXCEL.EXE
3896	EXCEL.EXE
3896	EXCEL.EXE
3896	EXCEL.EXE
3896	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3896 wrote to memory of 1828	3896	EXCEL.EXE	rundll32.exe
PID 3896 wrote to memory of 1828	3896	EXCEL.EXE	rundll32.exe
PID 3896 wrote to memory of 1548	3896	EXCEL.EXE	rundll32.exe
PID 3896 wrote to memory of 1548	3896	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-2012680994.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3896

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1828

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1548

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

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Downloads

memory/1548-180-0x0000000000000000-mapping.dmp

Download
memory/1828-179-0x0000000000000000-mapping.dmp

Download
memory/3896-114-0x00007FF70A400000-0x00007FF70D9B6000-memory.dmp

Filesize
53.7MB

Download
memory/3896-115-0x00007FFA08250000-0x00007FFA08260000-memory.dmp

Filesize
64KB

Download
memory/3896-116-0x00007FFA08250000-0x00007FFA08260000-memory.dmp

Filesize
64KB

Download
memory/3896-117-0x00007FFA08250000-0x00007FFA08260000-memory.dmp

Filesize
64KB

Download
memory/3896-118-0x00007FFA08250000-0x00007FFA08260000-memory.dmp

Filesize
64KB

Download
memory/3896-121-0x00007FFA28EA0000-0x00007FFA29F8E000-memory.dmp

Filesize
16.9MB

Download
memory/3896-122-0x00007FFA08250000-0x00007FFA08260000-memory.dmp

Filesize
64KB

Download
memory/3896-123-0x00007FFA26EE0000-0x00007FFA28DD5000-memory.dmp

Filesize
31.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads