Overview

overview

10

Static

static

8

Complaint-...20.xls

windows7_x64

10

Complaint-...20.xls

windows10_x64

6

Analysis

  • max time kernel
    20s
  • max time network
    132s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    04-12-2020 16:02

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Report Analysis Logs

General

  • Target

    Complaint-Letter_1492841762_12042020.xls

  • Size

    43KB

  • MD5

    e1bddad335af1cbf14788dfd3b898a59

  • SHA1

    1bbc9138c1f5fbd83c0484b2e00fc7d0ec03bb4d

  • SHA256

    bcc1731e3f2dc4772be5ad445247f717b82ec84eda5f86adc57824241dc77823

  • SHA512

    7aaf789e6fbdea965773046e966ae57d097c8b07fd5ccdf3ed90a380160c56ea105dfe6da48fb7981b618180f22976e9db0d3f6edd46cec23f83ac0d78526e51

Score
6/10

Malware Config

Signatures

  • Process spawned suspicious child process 1 IoCs

    This child process is typically not spawned unless (for example) the parent process crashes. This typically indicates the parent process was unsuccessfully compromised.

  • 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 behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 4 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\Complaint-Letter_1492841762_12042020.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4020
    • C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE
      "C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE" -x -s 4488
      2⤵
      • Process spawned suspicious child process
      • Suspicious use of WriteProcessMemory
      PID:2552
      • C:\Windows\system32\dwwin.exe
        C:\Windows\system32\dwwin.exe -x -s 4488
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:200

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • memory/200-4-0x0000000000000000-mapping.dmp
    Download
  • memory/200-5-0x000001EDC36E0000-0x000001EDC36E1000-memory.dmp
    Filesize

    4KB

    Download
  • memory/200-6-0x000001EDC36E0000-0x000001EDC36E1000-memory.dmp
    Filesize

    4KB

    Download
  • memory/200-8-0x000001EDC3E30000-0x000001EDC3E31000-memory.dmp
    Filesize

    4KB

    Download
  • memory/200-11-0x000001EDC4230000-0x000001EDC4231000-memory.dmp
    Filesize

    4KB

    Download
  • memory/200-13-0x000001EDC4230000-0x000001EDC4231000-memory.dmp
    Filesize

    4KB

    Download
  • memory/200-15-0x000001EDC4080000-0x000001EDC4081000-memory.dmp
    Filesize

    4KB

    Download
  • memory/200-16-0x000001EDC4080000-0x000001EDC4081000-memory.dmp
    Filesize

    4KB

    Download
  • memory/200-17-0x000001EDC4080000-0x000001EDC4081000-memory.dmp
    Filesize

    4KB

    Download
  • memory/2552-3-0x0000000000000000-mapping.dmp
    Download
  • memory/4020-2-0x00007FFE08100000-0x00007FFE08737000-memory.dmp
    Filesize

    6.2MB

    Download