Analysis

  • max time kernel
    119s
  • max time network
    105s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03-12-2024 22:20

General

  • Target

    edfcaaa04c894eba334c016b931a4c9cd82285e3b29adea40a0b8fcf406016efN.exe

  • Size

    1.6MB

  • MD5

    4aae2dd2e25b83671527274a58ceec80

  • SHA1

    21640f0096596d616a656d9316586d81631da4ad

  • SHA256

    edfcaaa04c894eba334c016b931a4c9cd82285e3b29adea40a0b8fcf406016ef

  • SHA512

    32852917d694589c75a0fe53d86eb510a053dee31d82e0b373ac96ca30ec7f2c261886a5f8316c2020247b4a7a2e60d561b8b7b2296bd8a29c954314ec7e34a6

  • SSDEEP

    49152:5dPQwh6G//OyxCjRW/iHIteZMqbRDENiPw3FTF:j3h6d68gwIteZNiiPwVp

Malware Config

Extracted

Family

xred

C2

xred.mooo.com

Attributes
  • email

    [email protected]

  • payload_url

    http://freedns.afraid.org/api/?action=getdyndns&sha=a30fa98efc092684e8d1c5cff797bcc613562978

    https://docs.google.com/uc?id=0BxsMXGfPIZfSVlVsOGlEVGxuZVk&export=download

    https://www.dropbox.com/s/n1w4p8gc6jzo0sg/SUpdate.ini?dl=1

    http://xred.site50.net/syn/SUpdate.ini

    https://docs.google.com/uc?id=0BxsMXGfPIZfSVzUyaHFYVkQxeFk&export=download

    https://www.dropbox.com/s/zhp1b06imehwylq/Synaptics.rar?dl=1

    http://xred.site50.net/syn/Synaptics.rar

    https://docs.google.com/uc?id=0BxsMXGfPIZfSTmlVYkxhSDg5TzQ&export=download

    https://www.dropbox.com/s/fzj752whr3ontsm/SSLLibrary.dll?dl=1

    http://xred.site50.net/syn/SSLLibrary.dll

Extracted

Family

remcos

Botnet

ABILLION+NAIRA

C2

nzobaku.ddns.net:8081

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-S0L1LJ

  • 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.

  • Remcos family
  • Xred

    Xred is backdoor written in Delphi.

  • Xred family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 6 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 12 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 60 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\edfcaaa04c894eba334c016b931a4c9cd82285e3b29adea40a0b8fcf406016efN.exe
    "C:\Users\Admin\AppData\Local\Temp\edfcaaa04c894eba334c016b931a4c9cd82285e3b29adea40a0b8fcf406016efN.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2348
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\edfcaaa04c894eba334c016b931a4c9cd82285e3b29adea40a0b8fcf406016efN.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2008
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\BLznCuyzwk.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2832
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BLznCuyzwk" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF029.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2876
    • C:\Users\Admin\AppData\Local\Temp\edfcaaa04c894eba334c016b931a4c9cd82285e3b29adea40a0b8fcf406016efN.exe
      "C:\Users\Admin\AppData\Local\Temp\edfcaaa04c894eba334c016b931a4c9cd82285e3b29adea40a0b8fcf406016efN.exe"
      2⤵
      • Loads dropped DLL
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2660
      • C:\Users\Admin\AppData\Local\Temp\._cache_edfcaaa04c894eba334c016b931a4c9cd82285e3b29adea40a0b8fcf406016efN.exe
        "C:\Users\Admin\AppData\Local\Temp\._cache_edfcaaa04c894eba334c016b931a4c9cd82285e3b29adea40a0b8fcf406016efN.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:580
      • C:\ProgramData\Synaptics\Synaptics.exe
        "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2948
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\ProgramData\Synaptics\Synaptics.exe"
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2276
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\BLznCuyzwk.exe"
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2244
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BLznCuyzwk" /XML "C:\Users\Admin\AppData\Local\Temp\tmp420F.tmp"
          4⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:2576
        • C:\ProgramData\Synaptics\Synaptics.exe
          "C:\ProgramData\Synaptics\Synaptics.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1180
          • C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
            "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe"
            5⤵
            • Executes dropped EXE
            PID:1476
  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /automation -Embedding
    1⤵
    • System Location Discovery: System Language Discovery
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:2184

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\Synaptics\Synaptics.exe

    Filesize

    1.6MB

    MD5

    4aae2dd2e25b83671527274a58ceec80

    SHA1

    21640f0096596d616a656d9316586d81631da4ad

    SHA256

    edfcaaa04c894eba334c016b931a4c9cd82285e3b29adea40a0b8fcf406016ef

    SHA512

    32852917d694589c75a0fe53d86eb510a053dee31d82e0b373ac96ca30ec7f2c261886a5f8316c2020247b4a7a2e60d561b8b7b2296bd8a29c954314ec7e34a6

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    2443bfc193a6437af5f80685fc9c2930

    SHA1

    5c8571efa262243a681c914ba82177138a3934ca

    SHA256

    d73ec24c0d4b0a85760795f91bf7cd106f8f199e262facb1397bc567013721ed

    SHA512

    675aee046303cac7e25ee0908682dc92c210e540f35dcd6fc9477474220a5b6cbf30ce9f689b45c07eaa3c33e7863b5b61226cd3511f0b891781591d91327b32

  • C:\Users\Admin\AppData\Local\Temp\3E7Fl4VQ.xlsm

    Filesize

    25KB

    MD5

    99b38dd19a7b1a77fbf49c9cf87003c6

    SHA1

    00caf68d74e2c7b4d1b69dd1d1896b0c63e88d6e

    SHA256

    0b7512f6061645090b183486f8f17bfc6c5f55e75dec53a0f851b493d07c6ef7

    SHA512

    ee9406da98c5d643cf272e4687bfdec9c1b59ec0e0d96ac23ed32b1b256272b87c1a645fd7ff389e13d7b9a09a6fde4c86ea15b8ce90e20960d6bdbb35ac67a8

  • C:\Users\Admin\AppData\Local\Temp\3E7Fl4VQ.xlsm

    Filesize

    17KB

    MD5

    e566fc53051035e1e6fd0ed1823de0f9

    SHA1

    00bc96c48b98676ecd67e81a6f1d7754e4156044

    SHA256

    8e574b4ae6502230c0829e2319a6c146aebd51b7008bf5bbfb731424d7952c15

    SHA512

    a12f56ff30ea35381c2b8f8af2446cf1daa21ee872e98cad4b863db060acd4c33c5760918c277dadb7a490cb4ca2f925d59c70dc5171e16601a11bc4a6542b04

  • C:\Users\Admin\AppData\Local\Temp\tmpF029.tmp

    Filesize

    1KB

    MD5

    1fae72122be7ed51c261cf8648a188c0

    SHA1

    5f29b533b4e04bd9f32e8df410443aad85ba6d66

    SHA256

    89f7ff3be8355ed44610649a04cf412a6c78d35d27d98b83f78d7c80e805fabe

    SHA512

    b88ccc3787fff223cb3af43b25acd802a4f8c1c1fc996404a5e9565c8d25cfd3651a37f06b952d10acc6c26987d11e25de93e315b1d5df976d6a24dc2f3efb3e

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\ZIWIAJ1LMTW744F8LMV3.temp

    Filesize

    7KB

    MD5

    e821e441382d3e40679a8d476bb9129c

    SHA1

    7981528c1e9cb3f833fe85304e4eec2f7f14cc98

    SHA256

    331509d804aebba5e3f3db94290e7f01a1f8a7f446862b83955d2e3525f2dd22

    SHA512

    24edbec33d0370a2d486cb60dd7a294eef007277b491ab6f374a0d116cf184a9c79d5637304957230a69c46cdd25f2bbcb741af99019d9a539f2ffa33b0ce40e

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    78d736e09d1a81dce2247febfcb01e20

    SHA1

    7c96dc0b7f448d8745f28485e15eefdb32bd8e4a

    SHA256

    afdc3bd9316cdd78ed507edd0af88dbbf5dcf3812d3a701da7ed5f46d939c31d

    SHA512

    67485075291aa92db9809b043bee18e29b490d39d9d081bdf1476faf0a2047e51eabf0513dc48e61045ba73210e6b957d7aff67251a56ea55cb08ecf6e6e1e9e

  • \??\PIPE\srvsvc

    MD5

    d41d8cd98f00b204e9800998ecf8427e

    SHA1

    da39a3ee5e6b4b0d3255bfef95601890afd80709

    SHA256

    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

    SHA512

    cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

  • \Users\Admin\AppData\Local\Temp\._cache_edfcaaa04c894eba334c016b931a4c9cd82285e3b29adea40a0b8fcf406016efN.exe

    Filesize

    483KB

    MD5

    f3b57ccad1c0a308635e17aa591e4038

    SHA1

    ca67ad3c74523b844fc23563f7b288f0389fd645

    SHA256

    5ad6b9a917f35be0a1d66c771069c2143ad765737eedd85436acbc0f95a4c0e7

    SHA512

    5ed754a1b254e8a4b03e0445ac0081c94aaf179c2974827ce4ff10b7deb765d819243b2084212d7c91be9ddc07bf94f55e35f85564781b4124b61647a2f0977a

  • memory/1180-93-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB

  • memory/1180-190-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB

  • memory/1180-152-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB

  • memory/1180-90-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1180-149-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB

  • memory/1180-148-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB

  • memory/2184-105-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2348-1-0x0000000000910000-0x0000000000AB6000-memory.dmp

    Filesize

    1.6MB

  • memory/2348-38-0x00000000741A0000-0x000000007488E000-memory.dmp

    Filesize

    6.9MB

  • memory/2348-3-0x0000000000540000-0x0000000000558000-memory.dmp

    Filesize

    96KB

  • memory/2348-2-0x00000000741A0000-0x000000007488E000-memory.dmp

    Filesize

    6.9MB

  • memory/2348-4-0x00000000741AE000-0x00000000741AF000-memory.dmp

    Filesize

    4KB

  • memory/2348-6-0x0000000005200000-0x000000000537E000-memory.dmp

    Filesize

    1.5MB

  • memory/2348-0-0x00000000741AE000-0x00000000741AF000-memory.dmp

    Filesize

    4KB

  • memory/2348-5-0x00000000741A0000-0x000000007488E000-memory.dmp

    Filesize

    6.9MB

  • memory/2660-27-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB

  • memory/2660-26-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB

  • memory/2660-21-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB

  • memory/2660-23-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB

  • memory/2660-19-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB

  • memory/2660-29-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB

  • memory/2660-31-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB

  • memory/2660-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2660-34-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB

  • memory/2660-35-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB

  • memory/2948-58-0x0000000000FD0000-0x0000000001176000-memory.dmp

    Filesize

    1.6MB