Analysis

  • max time kernel
    156s
  • max time network
    177s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    06-11-2022 19:01

General

  • Target

    HJCB_AGJ.exe

  • Size

    400.0MB

  • MD5

    826397fd173b32f46014457cf54e3d96

  • SHA1

    b9dfa605d72120670b3c765d1d025eb30dcba5d1

  • SHA256

    fcbf9204afb907fb4318b5929291b9a52a4ad4ed3961d4061d7e295755b97b9f

  • SHA512

    f75832d67f2520ae9511c1ed77529c52e72e50a3241baf911a5852c4d5d0fa7b592fed8c0acab702db557cbcf0491232288cab4da387c6a7e4592d88b7e34e80

  • SSDEEP

    12288:bRc09qQ3pq+FCOq/tygI/Fbrqbg8M4wSoRrNuNVE0qPRjK:tV9F3pdFhNxW08MJzoVE7PRO

Malware Config

Extracted

Family

remcos

Botnet

manup

C2

91.193.75.188:60005

Attributes
  • audio_folder

    MicRecords

  • 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

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-Y6KFVO

  • 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

Signatures

  • Remcos

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

  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 2 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 6 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\HJCB_AGJ.exe
    "C:\Users\Admin\AppData\Local\Temp\HJCB_AGJ.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1516
    • C:\Users\Admin\AppData\Local\Temp\HJCB_AGJ.exe
      "C:\Users\Admin\AppData\Local\Temp\HJCB_AGJ.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2036
      • C:\Users\Admin\AppData\Local\Temp\HJCB_AGJ.exe
        C:\Users\Admin\AppData\Local\Temp\HJCB_AGJ.exe /stext "C:\Users\Admin\AppData\Local\Temp\pjoonrbrjyrlzdwwzirdljmr"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:1156
      • C:\Users\Admin\AppData\Local\Temp\HJCB_AGJ.exe
        C:\Users\Admin\AppData\Local\Temp\HJCB_AGJ.exe /stext "C:\Users\Admin\AppData\Local\Temp\zdtgfkmkxgjqjjlaiteewwgidujl"
        3⤵
        • Accesses Microsoft Outlook accounts
        PID:1028
      • C:\Users\Admin\AppData\Local\Temp\HJCB_AGJ.exe
        C:\Users\Admin\AppData\Local\Temp\HJCB_AGJ.exe /stext "C:\Users\Admin\AppData\Local\Temp\cghrgcxmtobvmphmzdyyzabrljtuuoj"
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1088

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

1
T1081

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\pjoonrbrjyrlzdwwzirdljmr
    Filesize

    2B

    MD5

    f3b25701fe362ec84616a93a45ce9998

    SHA1

    d62636d8caec13f04e28442a0a6fa1afeb024bbb

    SHA256

    b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

    SHA512

    98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

  • memory/1028-86-0x0000000000400000-0x0000000000457000-memory.dmp
    Filesize

    348KB

  • memory/1028-81-0x0000000000400000-0x0000000000457000-memory.dmp
    Filesize

    348KB

  • memory/1028-75-0x0000000000455238-mapping.dmp
  • memory/1088-83-0x0000000000400000-0x0000000000424000-memory.dmp
    Filesize

    144KB

  • memory/1088-80-0x0000000000400000-0x0000000000424000-memory.dmp
    Filesize

    144KB

  • memory/1088-76-0x0000000000422206-mapping.dmp
  • memory/1156-74-0x0000000000476274-mapping.dmp
  • memory/1156-84-0x0000000000400000-0x0000000000478000-memory.dmp
    Filesize

    480KB

  • memory/1156-82-0x0000000000400000-0x0000000000478000-memory.dmp
    Filesize

    480KB

  • memory/1516-55-0x0000000075BD1000-0x0000000075BD3000-memory.dmp
    Filesize

    8KB

  • memory/1516-54-0x0000000000C80000-0x0000000000D44000-memory.dmp
    Filesize

    784KB

  • memory/2036-62-0x0000000000400000-0x000000000047F000-memory.dmp
    Filesize

    508KB

  • memory/2036-73-0x0000000000400000-0x000000000047F000-memory.dmp
    Filesize

    508KB

  • memory/2036-72-0x0000000000400000-0x000000000047F000-memory.dmp
    Filesize

    508KB

  • memory/2036-69-0x00000000004327A4-mapping.dmp
  • memory/2036-68-0x0000000000400000-0x000000000047F000-memory.dmp
    Filesize

    508KB

  • memory/2036-66-0x0000000000400000-0x000000000047F000-memory.dmp
    Filesize

    508KB

  • memory/2036-64-0x0000000000400000-0x000000000047F000-memory.dmp
    Filesize

    508KB

  • memory/2036-63-0x0000000000400000-0x000000000047F000-memory.dmp
    Filesize

    508KB

  • memory/2036-61-0x0000000000400000-0x000000000047F000-memory.dmp
    Filesize

    508KB

  • memory/2036-59-0x0000000000400000-0x000000000047F000-memory.dmp
    Filesize

    508KB

  • memory/2036-57-0x0000000000400000-0x000000000047F000-memory.dmp
    Filesize

    508KB

  • memory/2036-56-0x0000000000400000-0x000000000047F000-memory.dmp
    Filesize

    508KB

  • memory/2036-87-0x0000000000400000-0x000000000047F000-memory.dmp
    Filesize

    508KB