Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20220718-en
  • resource tags

    arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
  • submitted
    29-07-2022 14:45

General

  • Target

    cde0aa36b80beafa74e258c5384ab684.exe

  • Size

    140KB

  • MD5

    cde0aa36b80beafa74e258c5384ab684

  • SHA1

    0678a1ca625aebb6e88d38e3dc0796be573b5c06

  • SHA256

    a3eaed42c0457e69736b65abc55639deba7e6bfb94948dd3ed8b5f6ca968a979

  • SHA512

    373d420c21dfff931396416781011930701544c5a241097044f402079f3dcd2a35b982fe3eac66899692071222f047fdf4bff0a5e0466fb2aa88244d6a20e4d7

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

President

C2

winam.ddns.net:2401

dropy2.ddns.net:2400

dropy1.ddns.net:2404

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    svchost.exe

  • copy_folder

    updates

  • delete_file

    true

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    windows

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    remcos_bvmobmufbe

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    Logs

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Remcos

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 6 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cde0aa36b80beafa74e258c5384ab684.exe
    "C:\Users\Admin\AppData\Local\Temp\cde0aa36b80beafa74e258c5384ab684.exe"
    1⤵
    • Modifies system executable filetype association
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1124
    • C:\Users\Admin\AppData\Local\Temp\3582-490\cde0aa36b80beafa74e258c5384ab684.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\cde0aa36b80beafa74e258c5384ab684.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1440
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\install.bat" "
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2020
        • C:\Windows\SysWOW64\PING.EXE
          PING 127.0.0.1 -n 2
          4⤵
          • Runs ping.exe
          PID:1904
        • C:\Users\Admin\AppData\Roaming\updates\svchost.exe
          "C:\Users\Admin\AppData\Roaming\updates\svchost.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:1760

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\cde0aa36b80beafa74e258c5384ab684.exe

    Filesize

    100KB

    MD5

    a693cb1e220a688311032a45f34e42cc

    SHA1

    8f99519487ee96ef05c4d5f94a06080173b05d9c

    SHA256

    29eeb8781216adf0c1a47bedab9f2eb5315a9888ceae6ba1525e7d5ecce1eeee

    SHA512

    50c2c6f62912a4c965d3dad4e4ebb9c18b00028a0763dbecc15e2f5da46f7d63dd83b9c21f76f3029530b3feb59a28fa4b95b30438fefb14a5341338ca604a7c

  • C:\Users\Admin\AppData\Local\Temp\3582-490\cde0aa36b80beafa74e258c5384ab684.exe

    Filesize

    100KB

    MD5

    a693cb1e220a688311032a45f34e42cc

    SHA1

    8f99519487ee96ef05c4d5f94a06080173b05d9c

    SHA256

    29eeb8781216adf0c1a47bedab9f2eb5315a9888ceae6ba1525e7d5ecce1eeee

    SHA512

    50c2c6f62912a4c965d3dad4e4ebb9c18b00028a0763dbecc15e2f5da46f7d63dd83b9c21f76f3029530b3feb59a28fa4b95b30438fefb14a5341338ca604a7c

  • C:\Users\Admin\AppData\Local\Temp\install.bat

    Filesize

    188B

    MD5

    f4a1542081e4960f27e3e790013f05aa

    SHA1

    81b256715055b9cb3beb5f834c59f1b5c6b84937

    SHA256

    83b2bebe94fd411a7f6d8be9f170adc32eff0350bbeda624768c218a91851c30

    SHA512

    a6edbb80bd028eb4e51551a4f84b512587af713becdd25be1839a68c8481403603f1fccdd13d39eca06d6f31e54425ba42d4da5586eb52a38e2db2207613c8d9

  • C:\Users\Admin\AppData\Roaming\updates\svchost.exe

    Filesize

    100KB

    MD5

    a693cb1e220a688311032a45f34e42cc

    SHA1

    8f99519487ee96ef05c4d5f94a06080173b05d9c

    SHA256

    29eeb8781216adf0c1a47bedab9f2eb5315a9888ceae6ba1525e7d5ecce1eeee

    SHA512

    50c2c6f62912a4c965d3dad4e4ebb9c18b00028a0763dbecc15e2f5da46f7d63dd83b9c21f76f3029530b3feb59a28fa4b95b30438fefb14a5341338ca604a7c

  • C:\Users\Admin\AppData\Roaming\updates\svchost.exe

    Filesize

    100KB

    MD5

    a693cb1e220a688311032a45f34e42cc

    SHA1

    8f99519487ee96ef05c4d5f94a06080173b05d9c

    SHA256

    29eeb8781216adf0c1a47bedab9f2eb5315a9888ceae6ba1525e7d5ecce1eeee

    SHA512

    50c2c6f62912a4c965d3dad4e4ebb9c18b00028a0763dbecc15e2f5da46f7d63dd83b9c21f76f3029530b3feb59a28fa4b95b30438fefb14a5341338ca604a7c

  • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • \Users\Admin\AppData\Local\Temp\3582-490\cde0aa36b80beafa74e258c5384ab684.exe

    Filesize

    100KB

    MD5

    a693cb1e220a688311032a45f34e42cc

    SHA1

    8f99519487ee96ef05c4d5f94a06080173b05d9c

    SHA256

    29eeb8781216adf0c1a47bedab9f2eb5315a9888ceae6ba1525e7d5ecce1eeee

    SHA512

    50c2c6f62912a4c965d3dad4e4ebb9c18b00028a0763dbecc15e2f5da46f7d63dd83b9c21f76f3029530b3feb59a28fa4b95b30438fefb14a5341338ca604a7c

  • \Users\Admin\AppData\Local\Temp\3582-490\cde0aa36b80beafa74e258c5384ab684.exe

    Filesize

    100KB

    MD5

    a693cb1e220a688311032a45f34e42cc

    SHA1

    8f99519487ee96ef05c4d5f94a06080173b05d9c

    SHA256

    29eeb8781216adf0c1a47bedab9f2eb5315a9888ceae6ba1525e7d5ecce1eeee

    SHA512

    50c2c6f62912a4c965d3dad4e4ebb9c18b00028a0763dbecc15e2f5da46f7d63dd83b9c21f76f3029530b3feb59a28fa4b95b30438fefb14a5341338ca604a7c

  • \Users\Admin\AppData\Roaming\updates\svchost.exe

    Filesize

    100KB

    MD5

    a693cb1e220a688311032a45f34e42cc

    SHA1

    8f99519487ee96ef05c4d5f94a06080173b05d9c

    SHA256

    29eeb8781216adf0c1a47bedab9f2eb5315a9888ceae6ba1525e7d5ecce1eeee

    SHA512

    50c2c6f62912a4c965d3dad4e4ebb9c18b00028a0763dbecc15e2f5da46f7d63dd83b9c21f76f3029530b3feb59a28fa4b95b30438fefb14a5341338ca604a7c

  • \Users\Admin\AppData\Roaming\updates\svchost.exe

    Filesize

    100KB

    MD5

    a693cb1e220a688311032a45f34e42cc

    SHA1

    8f99519487ee96ef05c4d5f94a06080173b05d9c

    SHA256

    29eeb8781216adf0c1a47bedab9f2eb5315a9888ceae6ba1525e7d5ecce1eeee

    SHA512

    50c2c6f62912a4c965d3dad4e4ebb9c18b00028a0763dbecc15e2f5da46f7d63dd83b9c21f76f3029530b3feb59a28fa4b95b30438fefb14a5341338ca604a7c

  • \Users\Admin\AppData\Roaming\updates\svchost.exe

    Filesize

    100KB

    MD5

    a693cb1e220a688311032a45f34e42cc

    SHA1

    8f99519487ee96ef05c4d5f94a06080173b05d9c

    SHA256

    29eeb8781216adf0c1a47bedab9f2eb5315a9888ceae6ba1525e7d5ecce1eeee

    SHA512

    50c2c6f62912a4c965d3dad4e4ebb9c18b00028a0763dbecc15e2f5da46f7d63dd83b9c21f76f3029530b3feb59a28fa4b95b30438fefb14a5341338ca604a7c

  • memory/1124-54-0x0000000075871000-0x0000000075873000-memory.dmp

    Filesize

    8KB

  • memory/1440-57-0x0000000000000000-mapping.dmp

  • memory/1760-68-0x0000000000000000-mapping.dmp

  • memory/1904-63-0x0000000000000000-mapping.dmp

  • memory/2020-61-0x0000000000000000-mapping.dmp