Analysis

  • max time kernel
    147s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-07-2024 16:42

General

  • Target

    1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe

  • Size

    1.0MB

  • MD5

    995e20db533a2ae4f14b8ccc7a94a17b

  • SHA1

    b4dd9fbacd892b7c69cec499969399343a484205

  • SHA256

    1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787

  • SHA512

    e9357fac407375c08fe0885a8ed94bf63b53f1d7dc42c60a04bc9bd490d9964667c6e249b2d33f6f303cf3e69ae33af45ddf541f2104226438287632cc5f0936

  • SSDEEP

    24576:d+1bAypcqgS7drlUPc5xCAHFEihtVachK9HhzO:EVOtSJbCAvGBzO

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

104.250.180.178:7902

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    Adobe.exe

  • copy_folder

    Adobe

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Adobe-OTOIRK

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe
    "C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4584
    • C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe
      "C:\Users\Admin\AppData\Local\Temp\1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1544
      • C:\ProgramData\Adobe\Adobe.exe
        "C:\ProgramData\Adobe\Adobe.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4332
        • C:\ProgramData\Adobe\Adobe.exe
          "C:\ProgramData\Adobe\Adobe.exe"
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          PID:2784

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\Adobe\Adobe.exe

    Filesize

    1.0MB

    MD5

    995e20db533a2ae4f14b8ccc7a94a17b

    SHA1

    b4dd9fbacd892b7c69cec499969399343a484205

    SHA256

    1b754a8b7d0c1d3be17f751d327b38961c3d6ea3b8769c9c8edb1f318dfd0787

    SHA512

    e9357fac407375c08fe0885a8ed94bf63b53f1d7dc42c60a04bc9bd490d9964667c6e249b2d33f6f303cf3e69ae33af45ddf541f2104226438287632cc5f0936

  • memory/1544-11-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1544-27-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1544-16-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1544-14-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1544-12-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2784-45-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2784-42-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2784-41-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2784-40-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2784-39-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2784-43-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2784-44-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2784-36-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2784-46-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2784-37-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2784-47-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2784-48-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2784-35-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4332-38-0x00000000748C0000-0x0000000075070000-memory.dmp

    Filesize

    7.7MB

  • memory/4332-31-0x00000000748C0000-0x0000000075070000-memory.dmp

    Filesize

    7.7MB

  • memory/4332-30-0x0000000005830000-0x0000000005B84000-memory.dmp

    Filesize

    3.3MB

  • memory/4332-29-0x00000000748CE000-0x00000000748CF000-memory.dmp

    Filesize

    4KB

  • memory/4584-17-0x0000000074F00000-0x00000000756B0000-memory.dmp

    Filesize

    7.7MB

  • memory/4584-0-0x0000000074F0E000-0x0000000074F0F000-memory.dmp

    Filesize

    4KB

  • memory/4584-10-0x000000000AE30000-0x000000000AECC000-memory.dmp

    Filesize

    624KB

  • memory/4584-9-0x0000000006DE0000-0x0000000006EA0000-memory.dmp

    Filesize

    768KB

  • memory/4584-8-0x0000000006C30000-0x0000000006C3E000-memory.dmp

    Filesize

    56KB

  • memory/4584-7-0x0000000008870000-0x000000000888A000-memory.dmp

    Filesize

    104KB

  • memory/4584-6-0x00000000057B0000-0x00000000057BA000-memory.dmp

    Filesize

    40KB

  • memory/4584-5-0x0000000074F00000-0x00000000756B0000-memory.dmp

    Filesize

    7.7MB

  • memory/4584-4-0x0000000005870000-0x0000000005BC4000-memory.dmp

    Filesize

    3.3MB

  • memory/4584-3-0x0000000005660000-0x00000000056F2000-memory.dmp

    Filesize

    584KB

  • memory/4584-2-0x0000000005C10000-0x00000000061B4000-memory.dmp

    Filesize

    5.6MB

  • memory/4584-1-0x0000000000B10000-0x0000000000C1A000-memory.dmp

    Filesize

    1.0MB