Overview

overview

10

Static

static

8

1606bb5862...e.xlsm

windows7_x64

10

1606bb5862...e.xlsm

windows10_x64

10

Analysis

  • max time kernel
    142s
  • max time network
    138s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    22-01-2021 13:46

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General

  • Target

    1606bb5862b141d62f6029f51bfa63731edf851977c7f9e5610edb6f0d94849e.xlsm

  • Size

    25KB

  • MD5

    17b9ffb54e11d01b0f64151c0f44cabe

  • SHA1

    c9e52f252a5756325b068af4aec9b4a29842dce5

  • SHA256

    1606bb5862b141d62f6029f51bfa63731edf851977c7f9e5610edb6f0d94849e

  • SHA512

    337c2d43cf45d3b345cb4b3635f3fd233baa536d37fee18467cba017e5b4c8818bb70c9b7404b17cb21a90ff73fcb1c1a27c0c2af17a622009e19a19c2e413f9

Score
10/10
ransomware

Malware Config

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

    ransomware
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\1606bb5862b141d62f6029f51bfa63731edf851977c7f9e5610edb6f0d94849e.xlsm"
    1⤵
    • Enumerates connected drives
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:812
    • C:\Windows\SYSTEM32\rundll32.exe
      rundll32 ..\Flopers.GGRRDDFF,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:2132

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

3
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

4
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • memory/812-2-0x00007FFB60CA0000-0x00007FFB60CB0000-memory.dmp
    Filesize

    64KB

    Download
  • memory/812-3-0x00007FFB60CA0000-0x00007FFB60CB0000-memory.dmp
    Filesize

    64KB

    Download
  • memory/812-4-0x00007FFB60CA0000-0x00007FFB60CB0000-memory.dmp
    Filesize

    64KB

    Download
  • memory/812-5-0x00007FFB60CA0000-0x00007FFB60CB0000-memory.dmp
    Filesize

    64KB

    Download
  • memory/812-6-0x00007FFB84D00000-0x00007FFB85337000-memory.dmp
    Filesize

    6.2MB

    Download
  • memory/2132-7-0x0000000000000000-mapping.dmp
    Download