27ef9f658173804df9512e93698abdd1eb924a493cfe4945c7011fc936f5af12

Analysis

max time kernel
135s
max time network
133s
platform
windows10_x64
resource
win10
submitted
13/07/2020, 20:00

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General

Target

SecuriteInfo.com.DOC.Kryptik.Q.19369.xls
Size

309KB
MD5

303c9e48d826ba7aecf04663d9c317cb
SHA1

3394d30bb16ba4c31f1340b65cf8df4147119d27
SHA256

27ef9f658173804df9512e93698abdd1eb924a493cfe4945c7011fc936f5af12
SHA512

77cde6d6c7399e14e650bcf4a82448fef842e3c1d61a9b724728deb86acaeab9fa534a4df4f67bd427e6f385775655ff6d5220953dbbba517cd9ba57d9e9140f

Score

10^/10

Malware Config

Signatures

Enumerates connected drives 3 TTPs

Query Registry
T1012

Peripheral Device Discovery
T1120

System Information Discovery
T1082

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

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
3544	EXCEL.EXE
3544	EXCEL.EXE
3544	EXCEL.EXE
3544	EXCEL.EXE
3544	EXCEL.EXE
3544	EXCEL.EXE
3544	EXCEL.EXE
3544	EXCEL.EXE
3544	EXCEL.EXE
3544	EXCEL.EXE
3544	EXCEL.EXE
3544	EXCEL.EXE
3544	EXCEL.EXE
3544	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3544	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	3696	3544	rundll32.exe	66

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3544 wrote to memory of 3696	3544	EXCEL.EXE	71
PID 3544 wrote to memory of 3696	3544	EXCEL.EXE	71

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

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.19369.xls"
1⤵
- Checks processor information in registry
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of WriteProcessMemory
- Enumerates system info in registry
PID:3544
- C:\Windows\System32\rundll32.exe
  "C:\Windows\System32\rundll32.exe" C:\WbMFNqE\DTXZRqG\fytiOXY.dll,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:3696

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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