Analysis

  • max time kernel
    158s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 10:51

General

  • Target

    file-10101231_pdf.exe

  • Size

    510KB

  • MD5

    e07de03d1978041647c10e75b7eb7389

  • SHA1

    87d3a9bdbbf7ef6c0bdd7a81682c7316dfa0d7c8

  • SHA256

    0776457840077a9b6ac113b23ebf60c224c3c7b4807c6698fdfe764531d285be

  • SHA512

    6e9a6d92166328b87e898f320d660f9ee9452756717476fda1f5fbb2b17ab7b4029d9a8621ecb63990ca862f4b35a3a2796b3067c68f6a81b6c96641f46b824c

Malware Config

Signatures

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file-10101231_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\file-10101231_pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:908
    • C:\Users\Admin\AppData\Local\Temp\file-10101231_pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\file-10101231_pdf.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1040

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Replay Monitor

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Downloads

  • memory/908-54-0x0000000075DE1000-0x0000000075DE3000-memory.dmp
    Filesize

    8KB

  • memory/908-56-0x0000000000400000-0x0000000000486000-memory.dmp
    Filesize

    536KB

  • memory/1040-55-0x0000000000442BD0-mapping.dmp
  • memory/1040-57-0x0000000000290000-0x00000000002AC000-memory.dmp
    Filesize

    112KB

  • memory/1040-58-0x0000000000290000-0x00000000002AC000-memory.dmp
    Filesize

    112KB

  • memory/1040-60-0x0000000004B15000-0x0000000004B26000-memory.dmp
    Filesize

    68KB