Overview

overview

10

Static

static

9

Proforma H...df.exe

windows7_x64

10

Proforma H...df.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 12:07

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General

  • Target

    Proforma Haziran 21052020,pdf.exe

  • Size

    395KB

  • MD5

    e8880257995f8f870b97aa0e6395c6fd

  • SHA1

    134c29a50676ce8472ec8b978e056d6444ebaa16

  • SHA256

    0f2679baa996e2944996f4162bfb2beeaff492e1e15a844fc9b66f60d3411793

  • SHA512

    b2e689b15e1c6079a597c5360b4a30b3527138870456b1f4fe927fb386c6a5e4929c7d96445f97f03d73f4c9559d7bdd0367defc077a225a2faff86a26ea1b70

Score
10/10
remcosfrom jahrat

Malware Config

Extracted

Family

remcos

Version

2.5.0 Pro

Botnet

FROM JAH

C2

newdawn4me.ddns.net:7213

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-4F6INU

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

  • take_screenshot_title

    wikipedia;solitaire;

Signatures

  • Remcos

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

    ratremcos
  • CoreCCC Packer 1 IoCs

    Detects CoreCCC packer used to load .NET malware.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Uses the VBS compiler for execution 1 TTPs
  • 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.

    persistence
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Proforma Haziran 21052020,pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Proforma Haziran 21052020,pdf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4100
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\neHBIvjjoyfJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB088.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1248
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "{path}"
      2⤵
        PID:4500

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpB088.tmp
      Filesize

      1KB

      MD5

      a28b62ae6ffac4081431e4d10c34c347

      SHA1

      c786c6aadd5f60f1913d8d14edaa3ae19dddfe30

      SHA256

      4682c02b6c36ab1ae2b68d195b25f126121c7869563fc2b024049efb6a203d36

      SHA512

      18a50ecb15499b4c948e61fb3d7e091819bddc62ae0b7ca22db17591c8ffc06a804c88842f9304fb12efd093a25b8a7b2a32d1833253ea73cbf4de1561849780

      Download Submit

    • memory/1248-135-0x0000000000000000-mapping.dmp

      Download

    • memory/4100-130-0x0000000000F90000-0x0000000000FF8000-memory.dmp

      Filesize

      416KB

      Download

    • memory/4100-131-0x0000000005F70000-0x0000000006514000-memory.dmp

      Filesize

      5.6MB

      Download

    • memory/4100-132-0x00000000059C0000-0x0000000005A52000-memory.dmp

      Filesize

      584KB

      Download

    • memory/4100-133-0x0000000005B50000-0x0000000005B5A000-memory.dmp

      Filesize

      40KB

      Download

    • memory/4100-134-0x0000000007E50000-0x0000000007EEC000-memory.dmp

      Filesize

      624KB

      Download

    • memory/4500-137-0x0000000000000000-mapping.dmp

      Download

    • memory/4500-138-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

      Download

    • memory/4500-140-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

      Download

    • memory/4500-141-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

      Download