Overview

overview

10

Static

static

8

paym_appro...0.xlsm

windows7_x64

10

paym_appro...0.xlsm

windows10_x64

10

Analysis

  • max time kernel
    146s
  • max time network
    141s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    20-07-2021 09:45

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General

  • Target

    paym_approval_8909830.xlsm

  • Size

    118KB

  • MD5

    25740577bfb13e807aa64ac60ba6409d

  • SHA1

    66931af10b3c44062ba9b4be5a4574839db2928d

  • SHA256

    7ba924ed45ba93fc99b5391974ad4735df537ebb86d0da6d043f87ce3f019f38

  • SHA512

    039e501824858fadce4a93baf14ea61fa084183927943b5f741d72ca7c523dff387caf1420cd2c0f093b4793e70a94558fa046214b8edc7f662e5896a9ecf927

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://162.248.225.95/d.php

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • 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\paym_approval_8909830.xlsm"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4048
    • C:\Windows\SYSTEM32\regsvr32.exe
      regsvr32 -slient ..\zvbxnx.dll
      2⤵
      • Process spawned unexpected child process
      PID:640

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/640-263-0x0000000000000000-mapping.dmp
    Download
  • memory/4048-114-0x00007FF72F110000-0x00007FF7326C6000-memory.dmp
    Filesize

    53.7MB

    Download
  • memory/4048-115-0x00007FFDA2790000-0x00007FFDA27A0000-memory.dmp
    Filesize

    64KB

    Download
  • memory/4048-116-0x00007FFDA2790000-0x00007FFDA27A0000-memory.dmp
    Filesize

    64KB

    Download
  • memory/4048-117-0x00007FFDA2790000-0x00007FFDA27A0000-memory.dmp
    Filesize

    64KB

    Download
  • memory/4048-118-0x00007FFDA2790000-0x00007FFDA27A0000-memory.dmp
    Filesize

    64KB

    Download
  • memory/4048-121-0x00007FFDA2790000-0x00007FFDA27A0000-memory.dmp
    Filesize

    64KB

    Download
  • memory/4048-122-0x00007FFDC3180000-0x00007FFDC426E000-memory.dmp
    Filesize

    16.9MB

    Download
  • memory/4048-123-0x00007FFDC1230000-0x00007FFDC3125000-memory.dmp
    Filesize

    31.0MB

    Download