Overview

overview

10

Static

static

Halkbank_E...62.exe

windows7_x64

10

Halkbank_E...62.exe

windows10_x64

10

Analysis

  • max time kernel
    12s
  • max time network
    111s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    09/11/2020, 19:45

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General

  • Target
    Halkbank_Ekstre_20200410_080918_330462.exe
  • Size 210KB
  • Sample201109-2c654g8vj2
  • SHA256 acacc7f3cc09e7a711e1f7f4f9fc6633b4c48b21f17e793ec9a91c26173c1232
  • MD5 SHA1 SHA512
Score
10/10
coreentityrezer0

Malware Config

Signatures

  • CoreEntity .NET Packer 1 IoCs

    A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

    coreentity
  • rezer0 1 IoCs

    Detects ReZer0, a packer with multiple versions used in various campaigns.

    rezer0
  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

    persistence
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20200410_080918_330462.exe
    "C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20200410_080918_330462.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3988
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\arVIeJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1737.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2340
    • C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20200410_080918_330462.exe
      "{path}"
      2⤵
        PID:2700
      • C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20200410_080918_330462.exe
        "{path}"
        2⤵
          PID:2680
        • C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20200410_080918_330462.exe
          "{path}"
          2⤵
            PID:2708
          • C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20200410_080918_330462.exe
            "{path}"
            2⤵
              PID:2712
            • C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20200410_080918_330462.exe
              "{path}"
              2⤵
                PID:2940

            Network

                  MITRE ATT&CK Enterprise v6

                  Replay Monitor

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                  Downloads

                  memory/3988-0-0x00000000738E0000-0x0000000073FCE000-memory.dmp
                  Download

                  memory/3988-1-0x0000000000BE0000-0x0000000000BE1000-memory.dmp
                  Download

                  memory/3988-3-0x00000000059A0000-0x00000000059A1000-memory.dmp
                  Download

                  memory/3988-4-0x00000000054A0000-0x00000000054A1000-memory.dmp
                  Download

                  memory/3988-5-0x0000000005450000-0x0000000005451000-memory.dmp
                  Download

                  memory/3988-6-0x0000000005470000-0x0000000005473000-memory.dmp
                  Download

                  memory/3988-7-0x0000000005930000-0x0000000005983000-memory.dmp
                  Download

                  memory/3988-8-0x0000000005F40000-0x0000000005F41000-memory.dmp
                  Download