7b88ed5cba5dd03d9541a72b0a94c14ad73621c164ddade4c9b065de03a4df48

General

Target

SecuriteInfo.com.Trojan.Win32.Macro40.11000280.5135.4519.xlsm
Size

149KB
MD5

1279c603a4e9536e23c3de5986105b62
SHA1

0d116a02ce3c69aaade6e158983cd179943f35ef
SHA256

7b88ed5cba5dd03d9541a72b0a94c14ad73621c164ddade4c9b065de03a4df48
SHA512

77094082b3fa6233f558fa37034d4622be9231e0754e9eb20e4e278250366df0170ce4bdf3659b20b387566df332366fb98ac21752183623fefe2f65425c2034

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

rundll32.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	1440	3944	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

3944 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

3944 EXCEL.EXE
3944 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3944	EXCEL.EXE
3944	EXCEL.EXE
3944	EXCEL.EXE
3944	EXCEL.EXE
3944	EXCEL.EXE
3944	EXCEL.EXE
3944	EXCEL.EXE
3944	EXCEL.EXE
3944	EXCEL.EXE
3944	EXCEL.EXE
3944	EXCEL.EXE
3944	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3944 wrote to memory of 1440	3944	EXCEL.EXE	rundll32.exe
PID 3944 wrote to memory of 1440	3944	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\SecuriteInfo.com.Trojan.Win32.Macro40.11000280.5135.4519.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3944

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\Krock.KOD,StartW
2⤵
- Process spawned unexpected child process
PID:1440

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/1440-7-0x0000000000000000-mapping.dmp

Download
memory/3944-2-0x00007FF7FA740000-0x00007FF7FA750000-memory.dmp

Filesize
64KB

Download
memory/3944-3-0x00007FF7FA740000-0x00007FF7FA750000-memory.dmp

Filesize
64KB

Download
memory/3944-4-0x00007FF7FA740000-0x00007FF7FA750000-memory.dmp

Filesize
64KB

Download
memory/3944-5-0x00007FF81E290000-0x00007FF81E8C7000-memory.dmp

Filesize
6.2MB

Download
memory/3944-6-0x00007FF7FA740000-0x00007FF7FA750000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads