b2ca2ad757620f4520942ab693eae848f2a714bb19ceac051ee61c376e524152

Analysis

max time kernel
139s
max time network
135s
platform
windows10_x64
resource
win10v200430
submitted
07/07/2020, 18:48

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General

Target

9adfacc46085440fe2b6372c6076ee02.xls
Size

178KB
MD5

9adfacc46085440fe2b6372c6076ee02
SHA1

ab433a4b1f0f2c2a2cd408df4bc4fce4b6ddd604
SHA256

b2ca2ad757620f4520942ab693eae848f2a714bb19ceac051ee61c376e524152
SHA512

923248c16fe317c680a01573fe45a7523f3030c584ba3406abb51f3cdd43703671efa46997e67726ce8775b9f24dfa735847bffddef323a317494276a4119340

Score

10^/10

Malware Config

Signatures

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1231583446-2617009595-2137880041-1000_Classes\Local Settings	explorer.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
860	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	3808	860	explorer.exe	67

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 860 wrote to memory of 3808	860	EXCEL.EXE	71
PID 860 wrote to memory of 3808	860	EXCEL.EXE	71
PID 3024 wrote to memory of 3956	3024	explorer.exe	73
PID 3024 wrote to memory of 3956	3024	explorer.exe	73

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\9adfacc46085440fe2b6372c6076ee02.xls"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of WriteProcessMemory
- Checks processor information in registry
- Enumerates system info in registry
PID:860
- C:\Windows\explorer.exe
  explorer.exe C:\Users\Public\ixT.vbs
  2⤵
  - Process spawned unexpected child process
  PID:3808

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3024
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Public\ixT.vbs"
  2⤵
  PID:3956

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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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