Overview

overview

8

Static

static

Purchase O... .xlsx

windows7_x64

8

Purchase O... .xlsx

windows10_x64

1

Analysis

  • max time kernel
    141s
  • max time network
    21s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    09-07-2020 04:22

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General

  • Target

    Purchase Order 24432 .xlsx

  • Size

    14KB

  • MD5

    d31859fb69340e3d8aee9d8bc98dfed5

  • SHA1

    6b31e11e8c43a222bd07cd79273d9013b2137001

  • SHA256

    59f1f955f073e2a326d914a15fff168d9c304795270b26bdfb5e1d68d1f96742

  • SHA512

    94ac7f4d94f7c78d1e4a3a16f90d251bd7a815949039294b340375b0da5d2515444dc97e2319dbe6849267ee77f73470ff960db599ad6dae67c80e8e84052f00

Score
8/10
spywarepersistence

Malware Config

Signatures

  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spyware
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

    spyware
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Adds Run entry to start application 2 TTPs 1 IoCs
    persistence
  • Blacklisted process makes network request 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

    exploit
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence

Processes

  • C:\Program Files\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Office14\EXCEL.EXE" /dde "C:\Users\Admin\AppData\Local\Temp\Purchase Order 24432 .xlsx"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious behavior: AddClipboardFormatListener
    PID:828
  • C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
    "C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
    1⤵
    • Suspicious use of WriteProcessMemory
    • Blacklisted process makes network request
    • Loads dropped DLL
    • Launches Equation Editor
    PID:1524
    • C:\Users\Admin\AppData\Roaming\regasms.exe
      C:\Users\Admin\AppData\Roaming\regasms.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:1740
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jlTYJmXxtezeDi" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFE6A.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:1916
      • C:\Users\Admin\AppData\Roaming\regasms.exe
        "{path}"
        3⤵
        • Executes dropped EXE
        PID:1972
      • C:\Users\Admin\AppData\Roaming\regasms.exe
        "{path}"
        3⤵
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of AdjustPrivilegeToken
        • Adds Run entry to start application
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:1952

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1952-7-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

    Download

  • memory/1952-10-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

    Download

  • memory/1952-11-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

    Download