027e355c782feb5a0feec8d6fe004073e0d2f7d0d146fb81c3439f81e09d5aed

Analysis

max time kernel
138s
max time network
147s
platform
windows10_x64
resource
win10
submitted
13/07/2020, 20:00

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General

Target

SecuriteInfo.com.DOC.Kryptik.Q.17206.xls
Size

297KB
MD5

62e26facf7fccf4cd98fb2d8064bbda4
SHA1

6ca90193994b32e20f014b773e984be29cdb415f
SHA256

027e355c782feb5a0feec8d6fe004073e0d2f7d0d146fb81c3439f81e09d5aed
SHA512

aa7f178103bec3e3e2b8091e5a35fc00d68eb5809460fd7a785a1bddf0289d23ed603d82487e543df4a0e1435348f497f537e069574416f87b0416e5c208b4f6

Score

10^/10

Malware Config

Signatures

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
4064	EXCEL.EXE
4064	EXCEL.EXE
4064	EXCEL.EXE
4064	EXCEL.EXE
4064	EXCEL.EXE
4064	EXCEL.EXE
4064	EXCEL.EXE
4064	EXCEL.EXE
4064	EXCEL.EXE
4064	EXCEL.EXE
4064	EXCEL.EXE
4064	EXCEL.EXE
4064	EXCEL.EXE
4064	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4064	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	2960	4064	rundll32.exe	66

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4064 wrote to memory of 2960	4064	EXCEL.EXE	70
PID 4064 wrote to memory of 2960	4064	EXCEL.EXE	70

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

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.17206.xls"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of WriteProcessMemory
- Checks processor information in registry
- Enumerates system info in registry
PID:4064
- C:\Windows\System32\rundll32.exe
  "C:\Windows\System32\rundll32.exe" C:\WbMFNqE\DTXZRqG\fytiOXY.dll,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:2960

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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