Analysis

  • max time kernel
    135s
  • max time network
    25s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    07-07-2020 23:35

General

  • Target

    25c60987a0148c19477196257478f14c584600acd742369cb8859256ff005400.exe

  • Size

    1.9MB

  • MD5

    cd50a4284e86c32cefc000be565f667b

  • SHA1

    cc289817686d98f8bfab0172a12452cf7ede8dc8

  • SHA256

    25c60987a0148c19477196257478f14c584600acd742369cb8859256ff005400

  • SHA512

    cb645274816fb53d11ca0075cbcccb98a32e930ce860a9a9cefa03132adaeb9c7cb7853d36b9418aec2d85dcb2ed428e42493c14e47dc24a7bfaee4a51b8d319

Malware Config

Signatures

  • Suspicious use of WriteProcessMemory 11 IoCs
  • Executes dropped EXE 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Loads dropped DLL 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Checks for installed software on the system 1 TTPs 3 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs

Processes

  • C:\Users\Admin\AppData\Local\Temp\25c60987a0148c19477196257478f14c584600acd742369cb8859256ff005400.exe
    "C:\Users\Admin\AppData\Local\Temp\25c60987a0148c19477196257478f14c584600acd742369cb8859256ff005400.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Loads dropped DLL
    PID:1432
    • C:\Users\Admin\AppData\Local\Temp\is-V76D7.tmp\25c60987a0148c19477196257478f14c584600acd742369cb8859256ff005400.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-V76D7.tmp\25c60987a0148c19477196257478f14c584600acd742369cb8859256ff005400.tmp" /SL5="$70030,1249985,754688,C:\Users\Admin\AppData\Local\Temp\25c60987a0148c19477196257478f14c584600acd742369cb8859256ff005400.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Checks for installed software on the system
      PID:1452
      • C:\Users\Admin\AppData\Local\Temp\pdfreader2019\pdfreader2019.exe
        "C:\Users\Admin\AppData\Local\Temp\pdfreader2019\pdfreader2019.exe" /S /uid=1024
        3⤵
        • Executes dropped EXE
        • Modifies system certificate store
        • Checks for installed software on the system
        PID:756

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\is-V76D7.tmp\25c60987a0148c19477196257478f14c584600acd742369cb8859256ff005400.tmp

  • C:\Users\Admin\AppData\Local\Temp\is-V76D7.tmp\25c60987a0148c19477196257478f14c584600acd742369cb8859256ff005400.tmp

  • C:\Users\Admin\AppData\Local\Temp\pdfreader2019\pdfreader2019.exe

  • \Users\Admin\AppData\Local\Temp\is-V76D7.tmp\25c60987a0148c19477196257478f14c584600acd742369cb8859256ff005400.tmp

  • \Users\Admin\AppData\Local\Temp\pdfreader2019\pdfreader2019.exe

  • memory/756-5-0x0000000000000000-mapping.dmp

  • memory/1452-1-0x0000000000000000-mapping.dmp