fd8aec0158da8e2d9e0d3bbc78c9bf73e72613e09bf385d728438a3dd89dd665

Analysis

max time kernel
146s
max time network
143s
platform
windows10_x64
resource
win10v200430
submitted
13/07/2020, 20:00

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General

Target

SecuriteInfo.com.DOC.Kryptik.Q.17780.xls
Size

295KB
MD5

405bb15c0a415c57b9dab50a6091c9ff
SHA1

ac32a14b6e71c6db7947b02554ef82986157c98a
SHA256

fd8aec0158da8e2d9e0d3bbc78c9bf73e72613e09bf385d728438a3dd89dd665
SHA512

6590a4176a7f934af417ff12ecb39d8806bee8757e50a27a4b6e9a517896461d0536c56956878fb71b61bf216d785a11323a8f1a5ae5afa4f9fb19a6e28fb68e

Score

10^/10

Malware Config

Signatures

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
3812	EXCEL.EXE
3812	EXCEL.EXE
3812	EXCEL.EXE
3812	EXCEL.EXE
3812	EXCEL.EXE
3812	EXCEL.EXE
3812	EXCEL.EXE
3812	EXCEL.EXE
3812	EXCEL.EXE
3812	EXCEL.EXE
3812	EXCEL.EXE
3812	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3812	EXCEL.EXE

Process spawned unexpected child process 1 IoCs

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

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3864	3812	rundll32.exe	65

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3812 wrote to memory of 3864	3812	EXCEL.EXE	74
PID 3812 wrote to memory of 3864	3812	EXCEL.EXE	74

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

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

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

Enumerates connected drives 3 TTPs

Query Registry
T1012

Peripheral Device Discovery
T1120

System Information Discovery
T1082

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.DOC.Kryptik.Q.17780.xls"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of WriteProcessMemory
- Checks processor information in registry
- Enumerates system info in registry
PID:3812
- C:\Windows\System32\rundll32.exe
  "C:\Windows\System32\rundll32.exe" C:\WbMFNqE\DTXZRqG\fytiOXY.dll,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:3864

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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