dc999f91abf8dc03db424fb8bed91876c06cafa4da8d1d303595328361be9d26

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.21545.xls
Size

311KB
MD5

780c65f9799fabd4b736165bc5785eeb
SHA1

0a510a166031402b2ca98be6c406a9e8914afb43
SHA256

dc999f91abf8dc03db424fb8bed91876c06cafa4da8d1d303595328361be9d26
SHA512

f5721b5353929f231822b9d367e28b6c865b66f93e373cddd23079bdfb2faa1049282c5ec4adfe988a1c8f3992033f3db74665d633915de7336ba9178f83a977

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
344	EXCEL.EXE
344	EXCEL.EXE
344	EXCEL.EXE
344	EXCEL.EXE
344	EXCEL.EXE
344	EXCEL.EXE
344	EXCEL.EXE
344	EXCEL.EXE
344	EXCEL.EXE
344	EXCEL.EXE
344	EXCEL.EXE
344	EXCEL.EXE
344	EXCEL.EXE
344	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
344	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
344	EXCEL.EXE
344	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	3092	344	rundll32.exe	66

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 344 wrote to memory of 3092	344	EXCEL.EXE	71
PID 344 wrote to memory of 3092	344	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.21545.xls"
1⤵
- Checks processor information in registry
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
- Enumerates system info in registry
PID:344
- C:\Windows\System32\rundll32.exe
  "C:\Windows\System32\rundll32.exe" C:\WbMFNqE\DTXZRqG\fytiOXY.dll,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:3092

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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