Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/11/2023, 23:49

General

  • Target

    653f628893de874793983dc90b8868c7e56229e28f7eaf79d615c55490179411.exe

  • Size

    360KB

  • MD5

    baa40e739a7b86a71f5ce1cc9ef151b8

  • SHA1

    67c7f0cf57aff173413f0ba17e9ec5052f1aac86

  • SHA256

    653f628893de874793983dc90b8868c7e56229e28f7eaf79d615c55490179411

  • SHA512

    a6bf3aa52d35cc7119bce93b5166dec0f48692db7b394d54d656a1e8c3871dbfaa17391f894a26d2cedad4d09c316525b122f1689941bd92e008b47940436dbc

  • SSDEEP

    6144:wBlL/71aRFGx1f1M/bwy2TtkyVIfjdiYfoRK7pvcHFyXX/Q+dClyOIyS:CJ1GGdcbwy2kyVIblgc1E6XY+dxO7S

Malware Config

Extracted

Family

remcos

Botnet

JOHN-PC

C2

107.175.229.139:8087

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-IN4YDY

  • 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.

  • 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
  • Executes dropped EXE 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • UPX packed file 38 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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).

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\653f628893de874793983dc90b8868c7e56229e28f7eaf79d615c55490179411.exe
    "C:\Users\Admin\AppData\Local\Temp\653f628893de874793983dc90b8868c7e56229e28f7eaf79d615c55490179411.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1428
    • C:\Users\Admin\AppData\Local\Temp\hmgffhl.exe
      "C:\Users\Admin\AppData\Local\Temp\hmgffhl.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1724
      • C:\Users\Admin\AppData\Local\Temp\hmgffhl.exe
        "C:\Users\Admin\AppData\Local\Temp\hmgffhl.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:740
        • C:\Users\Admin\AppData\Local\Temp\hmgffhl.exe
          C:\Users\Admin\AppData\Local\Temp\hmgffhl.exe /stext "C:\Users\Admin\AppData\Local\Temp\guvaroaffmxjxtmndnuibwp"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:2240
        • C:\Users\Admin\AppData\Local\Temp\hmgffhl.exe
          C:\Users\Admin\AppData\Local\Temp\hmgffhl.exe /stext "C:\Users\Admin\AppData\Local\Temp\qpjsrhkztupozhazmxhjebkhhq"
          4⤵
          • Executes dropped EXE
          • Accesses Microsoft Outlook accounts
          PID:1476
        • C:\Users\Admin\AppData\Local\Temp\hmgffhl.exe
          C:\Users\Admin\AppData\Local\Temp\hmgffhl.exe /stext "C:\Users\Admin\AppData\Local\Temp\brodszvapchbjnwdvibdpofqqxrmx"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4980

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    4KB

    MD5

    e4a10383112b65cf1ebe152e69b201e1

    SHA1

    5bd437d88f7e4b7bca224d14ee4997c8ed523696

    SHA256

    298b628b00621049409f66f81960f7faaa38f2c68adf7cf50c315c199c7b4ea9

    SHA512

    bd6e072d08538cf69b35c2157e17b4eae4f6c10ad209dacb5766fc312ef1a5a576e925de8406efac9cb8b6c29d5f5b077371a8fba58b6ff183d0cf8dbb2dae2d

  • C:\Users\Admin\AppData\Local\Temp\hmgffhl.exe

    Filesize

    179KB

    MD5

    af8589ad7b9edf29559886b6c11320c5

    SHA1

    27c66de8bbaa255d5ed3e200119b8f5f443ddf52

    SHA256

    d79d1c50863e99b5d93d3d5f7f6c68a0f7774cd53e329a9cd626123c2d8b4716

    SHA512

    b5203bd31d3bd6047bfd1648b6bd308ec7c46d5566962b695e06209184f24224bf2a9094744330cbb1e037f914d4bdd625165773d992145a8c38b74ab0348ecd

  • C:\Users\Admin\AppData\Local\Temp\hmgffhl.exe

    Filesize

    179KB

    MD5

    af8589ad7b9edf29559886b6c11320c5

    SHA1

    27c66de8bbaa255d5ed3e200119b8f5f443ddf52

    SHA256

    d79d1c50863e99b5d93d3d5f7f6c68a0f7774cd53e329a9cd626123c2d8b4716

    SHA512

    b5203bd31d3bd6047bfd1648b6bd308ec7c46d5566962b695e06209184f24224bf2a9094744330cbb1e037f914d4bdd625165773d992145a8c38b74ab0348ecd

  • C:\Users\Admin\AppData\Local\Temp\hmgffhl.exe

    Filesize

    179KB

    MD5

    af8589ad7b9edf29559886b6c11320c5

    SHA1

    27c66de8bbaa255d5ed3e200119b8f5f443ddf52

    SHA256

    d79d1c50863e99b5d93d3d5f7f6c68a0f7774cd53e329a9cd626123c2d8b4716

    SHA512

    b5203bd31d3bd6047bfd1648b6bd308ec7c46d5566962b695e06209184f24224bf2a9094744330cbb1e037f914d4bdd625165773d992145a8c38b74ab0348ecd

  • C:\Users\Admin\AppData\Local\Temp\hmgffhl.exe

    Filesize

    179KB

    MD5

    af8589ad7b9edf29559886b6c11320c5

    SHA1

    27c66de8bbaa255d5ed3e200119b8f5f443ddf52

    SHA256

    d79d1c50863e99b5d93d3d5f7f6c68a0f7774cd53e329a9cd626123c2d8b4716

    SHA512

    b5203bd31d3bd6047bfd1648b6bd308ec7c46d5566962b695e06209184f24224bf2a9094744330cbb1e037f914d4bdd625165773d992145a8c38b74ab0348ecd

  • C:\Users\Admin\AppData\Local\Temp\hmgffhl.exe

    Filesize

    179KB

    MD5

    af8589ad7b9edf29559886b6c11320c5

    SHA1

    27c66de8bbaa255d5ed3e200119b8f5f443ddf52

    SHA256

    d79d1c50863e99b5d93d3d5f7f6c68a0f7774cd53e329a9cd626123c2d8b4716

    SHA512

    b5203bd31d3bd6047bfd1648b6bd308ec7c46d5566962b695e06209184f24224bf2a9094744330cbb1e037f914d4bdd625165773d992145a8c38b74ab0348ecd

  • C:\Users\Admin\AppData\Local\Temp\hmgffhl.exe

    Filesize

    179KB

    MD5

    af8589ad7b9edf29559886b6c11320c5

    SHA1

    27c66de8bbaa255d5ed3e200119b8f5f443ddf52

    SHA256

    d79d1c50863e99b5d93d3d5f7f6c68a0f7774cd53e329a9cd626123c2d8b4716

    SHA512

    b5203bd31d3bd6047bfd1648b6bd308ec7c46d5566962b695e06209184f24224bf2a9094744330cbb1e037f914d4bdd625165773d992145a8c38b74ab0348ecd

  • C:\Users\Admin\AppData\Local\Temp\qhnlknnvg.a

    Filesize

    252KB

    MD5

    ddbc7a941cc8a41868214bf457414ba3

    SHA1

    9863a26f3e01f83959063b788cd1454363822e01

    SHA256

    3a771752b239f75a7bbef2e0e95d8ba7d74c5f070160e970c15325c1d5502735

    SHA512

    667960b374d7ed49966c37e2fab808176f0d28e2c5fd3afc8c2ccdde0618e0b974cc4393005794cdff63069ce58b68238f4e5f2e94dc754a6c3ada688fd99099

  • memory/740-66-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-70-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-14-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-15-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-17-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-16-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-19-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-18-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-21-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-84-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-13-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-83-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-11-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-82-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-8-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-81-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-80-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-79-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-78-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-77-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-76-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-75-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-74-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-73-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-72-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-10-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-50-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/740-53-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/740-54-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/740-55-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/740-56-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/740-57-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-58-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-59-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-60-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-61-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-62-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-63-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-64-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/740-65-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-71-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-68-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-69-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/740-12-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/1476-33-0x0000000000400000-0x0000000000457000-memory.dmp

    Filesize

    348KB

  • memory/1476-25-0x0000000000400000-0x0000000000457000-memory.dmp

    Filesize

    348KB

  • memory/1476-38-0x0000000000400000-0x0000000000457000-memory.dmp

    Filesize

    348KB

  • memory/1476-40-0x0000000000400000-0x0000000000457000-memory.dmp

    Filesize

    348KB

  • memory/1724-5-0x0000000002180000-0x0000000002183000-memory.dmp

    Filesize

    12KB

  • memory/2240-36-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2240-47-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2240-32-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2240-35-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2240-22-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/4980-39-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/4980-31-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/4980-34-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/4980-28-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB