Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-01-2023 07:21

General

  • Target

    7034c12131cc2e28fcf9235850a36b08e9983dce.exe

  • Size

    7KB

  • MD5

    1c72fb093ace75fffb093c6541ff4940

  • SHA1

    7034c12131cc2e28fcf9235850a36b08e9983dce

  • SHA256

    f00982603a693995cf32649df28ac390ce839638751f04d11517454466061785

  • SHA512

    4d713c85e2b5a818e3f5db4c7b59a820bb309c911825670b540597c9faa9d931f5648d054e19a01a48f7c97bae6dfe67b02148fb3ad58ddafdd11bb06f8a59ed

  • SSDEEP

    96:lTlsnKYgr+QLZCMqm18WQ2juY+wq+Df/8tEkajtR/zNt:lpQELZCMqmXjuZ+z8zaj7p

Malware Config

Extracted

Family

remcos

Botnet

28282

C2

194.180.49.17:28282

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

    gqhwjekrltlu-TOU33Q

  • 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
  • Checks computer location settings 2 TTPs 1 IoCs

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

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

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
    "C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1144
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:384
    • C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
      C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:5020
      • C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
        C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe /stext "C:\Users\Admin\AppData\Local\Temp\zjzbcilgkuqpzkvwzlyfavvkxqdro"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:1260
      • C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
        C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe /stext "C:\Users\Admin\AppData\Local\Temp\klftdawhyciujrjaqwkgdzpbyfnahedw"
        3⤵
        • Accesses Microsoft Outlook accounts
        PID:4400
      • C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe
        C:\Users\Admin\AppData\Local\Temp\7034c12131cc2e28fcf9235850a36b08e9983dce.exe /stext "C:\Users\Admin\AppData\Local\Temp\ufkm"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4084

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\zjzbcilgkuqpzkvwzlyfavvkxqdro

    Filesize

    4KB

    MD5

    d06ebab8b0513f602e535079a9ebbeea

    SHA1

    d29472e6eb5a72f0353d70b97a33337b255b487e

    SHA256

    0c9e16830ccc6495def187adde2137ac07a566e1534e5714f626dcd68d28094c

    SHA512

    002df6f401950fd24d5976a47c58e9e2c58cef7d4fdec69f815fb6a00fb1e1a8963a4a7bf52056e61d6f6875edec393c466742c3031dd5f88802b45ddadca209

  • memory/384-140-0x0000000007F70000-0x00000000085EA000-memory.dmp

    Filesize

    6.5MB

  • memory/384-135-0x0000000003220000-0x0000000003256000-memory.dmp

    Filesize

    216KB

  • memory/384-141-0x0000000006D80000-0x0000000006D9A000-memory.dmp

    Filesize

    104KB

  • memory/384-136-0x00000000059D0000-0x0000000005FF8000-memory.dmp

    Filesize

    6.2MB

  • memory/384-137-0x0000000006000000-0x0000000006066000-memory.dmp

    Filesize

    408KB

  • memory/384-138-0x00000000060F0000-0x0000000006156000-memory.dmp

    Filesize

    408KB

  • memory/384-139-0x0000000005590000-0x00000000055AE000-memory.dmp

    Filesize

    120KB

  • memory/384-134-0x0000000000000000-mapping.dmp

  • memory/1144-143-0x0000000006F90000-0x0000000007534000-memory.dmp

    Filesize

    5.6MB

  • memory/1144-133-0x0000000006040000-0x0000000006062000-memory.dmp

    Filesize

    136KB

  • memory/1144-132-0x0000000000110000-0x0000000000118000-memory.dmp

    Filesize

    32KB

  • memory/1144-142-0x00000000054C0000-0x0000000005552000-memory.dmp

    Filesize

    584KB

  • memory/1260-160-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1260-154-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1260-149-0x0000000000000000-mapping.dmp

  • memory/4084-153-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/4084-151-0x0000000000000000-mapping.dmp

  • memory/4084-155-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/4400-156-0x0000000000400000-0x0000000000457000-memory.dmp

    Filesize

    348KB

  • memory/4400-152-0x0000000000400000-0x0000000000457000-memory.dmp

    Filesize

    348KB

  • memory/4400-150-0x0000000000000000-mapping.dmp

  • memory/5020-148-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/5020-147-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/5020-146-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/5020-145-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/5020-158-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/5020-144-0x0000000000000000-mapping.dmp

  • memory/5020-163-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/5020-162-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/5020-164-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/5020-165-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB