Analysis

  • max time kernel
    154s
  • max time network
    162s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-07-2022 16:55

General

  • Target

    5d97621e71741cf4e2b90ebd16281ddb2c1fe806b3c4e6be5aef738cdf79089b.exe

  • Size

    480KB

  • MD5

    4841f41452ae6adfbfdcaa30e253261f

  • SHA1

    5a51f6bddb0e890a710fe8c13017e8902e7123fd

  • SHA256

    5d97621e71741cf4e2b90ebd16281ddb2c1fe806b3c4e6be5aef738cdf79089b

  • SHA512

    220bca133859810728fc6d2df5ad8f789e4e1138ca76d51c809474ca721259863cbb9b81435fd9e9379a61f615816607eaa9414349625762a02ce60271444e1d

Malware Config

Extracted

Family

remcos

Botnet

06192022

C2

nikahuve.ac.ug:6968

kalskala.ac.ug:6968

tuekisaa.ac.ug:6968

parthaha.ac.ug:6968

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

    true

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    scxs.dat

  • keylog_flag

    false

  • keylog_folder

    forbas

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    cvxyttydfsgbghfgfhtd-RXTSAM

  • 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

    notepad;solitaire;

Signatures

  • Remcos

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5d97621e71741cf4e2b90ebd16281ddb2c1fe806b3c4e6be5aef738cdf79089b.exe
    "C:\Users\Admin\AppData\Local\Temp\5d97621e71741cf4e2b90ebd16281ddb2c1fe806b3c4e6be5aef738cdf79089b.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:792
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:116

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/116-135-0x0000000000400000-0x000000000047B000-memory.dmp
    Filesize

    492KB

  • memory/116-134-0x0000000000000000-mapping.dmp
  • memory/116-136-0x0000000000400000-0x000000000047B000-memory.dmp
    Filesize

    492KB

  • memory/116-137-0x0000000000400000-0x000000000047B000-memory.dmp
    Filesize

    492KB

  • memory/116-138-0x0000000000400000-0x000000000047B000-memory.dmp
    Filesize

    492KB

  • memory/116-139-0x0000000000400000-0x000000000047B000-memory.dmp
    Filesize

    492KB

  • memory/792-130-0x0000000000F10000-0x0000000000F8E000-memory.dmp
    Filesize

    504KB

  • memory/792-131-0x0000000005E90000-0x0000000006434000-memory.dmp
    Filesize

    5.6MB

  • memory/792-132-0x0000000005980000-0x0000000005A12000-memory.dmp
    Filesize

    584KB

  • memory/792-133-0x0000000005930000-0x000000000593A000-memory.dmp
    Filesize

    40KB