Resubmissions

03-08-2021 07:41

210803-qwfhgtkjv6 10

26-07-2021 12:41

210726-dxe6lafqxn 10

Analysis

  • max time kernel
    134s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    26-07-2021 12:41

General

  • Target

    fd945e2cc6d1b3a453135d5df04eeccbfd16f76e0744dd27b99e0eccaa9053bd.sample.exe

  • Size

    207KB

  • MD5

    900c456cbcd61ed2bf91378112e93eb0

  • SHA1

    c227ca088a4f80729b83396cafa0152d9778254e

  • SHA256

    fd945e2cc6d1b3a453135d5df04eeccbfd16f76e0744dd27b99e0eccaa9053bd

  • SHA512

    e9e71efbe7e70ece0d5022c401d6cb8c808237946b6a30fcfe18d8d43ea93460c04977015daf05a7baa5a9f1467c5ffdcf499a52706c27a0055529a3f38f0ba7

Malware Config

Signatures

  • HiddenTear Ransomware

    Open-Source ransomware available on Github since 2015, with many versions in the wild.

  • suricata: ET MALWARE Observed Reimageplus Ransomware Domain in TLS SNI
  • suricata: ET MALWARE Reimageplus Ransomware Checkin
  • Modifies extensions of user files 1 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Modifies system certificate store 2 TTPs 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fd945e2cc6d1b3a453135d5df04eeccbfd16f76e0744dd27b99e0eccaa9053bd.sample.exe
    "C:\Users\Admin\AppData\Local\Temp\fd945e2cc6d1b3a453135d5df04eeccbfd16f76e0744dd27b99e0eccaa9053bd.sample.exe"
    1⤵
    • Modifies extensions of user files
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    PID:1920

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1920-60-0x00000000000B0000-0x00000000000B1000-memory.dmp

    Filesize

    4KB

  • memory/1920-62-0x00000000006A0000-0x00000000006A1000-memory.dmp

    Filesize

    4KB