Analysis

  • max time kernel
    144s
  • max time network
    145s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    30-04-2021 09:02

General

  • Target

    Due Invoices.exe

  • Size

    410KB

  • MD5

    98a8aeb1ab92c13aa646d3ca22d91286

  • SHA1

    d9d1985d9d6dc8e1af4894ff2716e758fe5d5f29

  • SHA256

    96e975e9e509e40c6b069f4fe4ef338ddaa76472a30e3115374d5ae3b25c7616

  • SHA512

    0a1565ca50782184fb4b106b9c119881260618969b5942bb33eef1dbb18a6960866c756720768af5ef2cf4c19f02597866ce17f4d93d58344130f405877c4934

Score
5/10

Malware Config

Signatures

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Due Invoices.exe
    "C:\Users\Admin\AppData\Local\Temp\Due Invoices.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3152
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zzCorc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB75A.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:972
    • C:\Users\Admin\AppData\Local\Temp\Due Invoices.exe
      "C:\Users\Admin\AppData\Local\Temp\Due Invoices.exe"
      2⤵
        PID:1320
      • C:\Users\Admin\AppData\Local\Temp\Due Invoices.exe
        "C:\Users\Admin\AppData\Local\Temp\Due Invoices.exe"
        2⤵
        • Suspicious use of SetWindowsHookEx
        PID:1296

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpB75A.tmp
      MD5

      10fc7d651f9d616183d377e119af4e66

      SHA1

      52d90db53be96f3f178d74db5c48677c9cc2b324

      SHA256

      55a843d3a25ae2638ba3215b58a65b8f0d57d0370f15cfed6626b7f15a566972

      SHA512

      62dd8e4b6ad77559d216ceeb5583615de3fc6ce303c51029a952e1cc70d8e868b3876f2d6a3868541b66001229776a67693a871dac5d46d97487ab93af256f67

    • memory/972-116-0x0000000000000000-mapping.dmp
    • memory/1296-118-0x0000000000400000-0x0000000000419000-memory.dmp
      Filesize

      100KB

    • memory/1296-119-0x00000000004172EC-mapping.dmp
    • memory/1296-120-0x0000000000400000-0x0000000000419000-memory.dmp
      Filesize

      100KB

    • memory/3152-114-0x0000000000500000-0x00000000005AE000-memory.dmp
      Filesize

      696KB

    • memory/3152-115-0x000000007F740000-0x000000007F741000-memory.dmp
      Filesize

      4KB