Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    04/09/2024, 10:07

General

  • Target

    396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe

  • Size

    5.1MB

  • MD5

    aa1c1ce4915e430238dd1579fe0ee320

  • SHA1

    6df35550b84eb4b2648a09ff2be348ee326e7e78

  • SHA256

    396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53

  • SHA512

    04d46c3d8f73941b017b8c64302eebffe7a77a39d63c83dfbc5f71e45d1824557ea174dcc36c9ec82a4a176ae72ef840457855a11724314d255775b548f19d2e

  • SSDEEP

    98304:xXZvnKYEUwMXKCEXZvnKYEUwMXKC6XZvnKYEUwMXKC:xtnf3rXJEtnf3rXJ6tnf3rXJ

Malware Config

Extracted

Family

remcos

Botnet

Rain

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-OVTDA2

  • 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.

  • 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 18 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\396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
    "C:\Users\Admin\AppData\Local\Temp\396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2372
    • 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\396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2204
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\SBYYcyqg.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1932
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SBYYcyqg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp147A.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2244
    • C:\Users\Admin\AppData\Local\Temp\396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
      "C:\Users\Admin\AppData\Local\Temp\396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe"
      2⤵
      • Loads dropped DLL
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2092
      • C:\Users\Admin\AppData\Local\Temp\._cache_396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe
        "C:\Users\Admin\AppData\Local\Temp\._cache_396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2740
      • 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:1640
        • 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:3040
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\SBYYcyqg.exe"
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2392
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SBYYcyqg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6B51.tmp"
          4⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:1848
        • 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:2540
          • C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
            "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe"
            5⤵
            • Executes dropped EXE
            PID:1964
  • 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:2448

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\Synaptics\Synaptics.exe

    Filesize

    5.1MB

    MD5

    aa1c1ce4915e430238dd1579fe0ee320

    SHA1

    6df35550b84eb4b2648a09ff2be348ee326e7e78

    SHA256

    396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53

    SHA512

    04d46c3d8f73941b017b8c64302eebffe7a77a39d63c83dfbc5f71e45d1824557ea174dcc36c9ec82a4a176ae72ef840457855a11724314d255775b548f19d2e

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    475d53e6b451b961b67d879caaf6bc4d

    SHA1

    cbe15724193e152cdcab438f237dec1b5bb9c86f

    SHA256

    d3d5dedbe53519dbf5173948ba5ffdeab598f4c6a63c1310e65a50f11a099b46

    SHA512

    98255082d11670316f0a646c6e5de2f04f6533f483cb40a68c0cf3760999e6d4dd53ee5e68df788f05c84877f1b807cc9e61006d58858d819982aaea1a6b5890

  • C:\Users\Admin\AppData\Local\Temp\oXAL8a7a.xlsm

    Filesize

    20KB

    MD5

    05665ff21e383a7c0bb791823378f643

    SHA1

    f4e0e53f57092059dbc27fa37e22a5e1d084fec5

    SHA256

    04ce36993de319106d03565f25921580477f3a508940d57ffa53dccd278acd86

    SHA512

    f44a004904f9471375a33a6be2e8b377eecd1b4c76af8550523b7a85c3c2532e7b556f96a6df2a0b211cf39f3338f32611b2e43d35eb1cb4692640663bf12061

  • C:\Users\Admin\AppData\Local\Temp\oXAL8a7a.xlsm

    Filesize

    17KB

    MD5

    e566fc53051035e1e6fd0ed1823de0f9

    SHA1

    00bc96c48b98676ecd67e81a6f1d7754e4156044

    SHA256

    8e574b4ae6502230c0829e2319a6c146aebd51b7008bf5bbfb731424d7952c15

    SHA512

    a12f56ff30ea35381c2b8f8af2446cf1daa21ee872e98cad4b863db060acd4c33c5760918c277dadb7a490cb4ca2f925d59c70dc5171e16601a11bc4a6542b04

  • C:\Users\Admin\AppData\Local\Temp\oXAL8a7a.xlsm

    Filesize

    28KB

    MD5

    a8b3feeb58bd6c9dd2cbc5226a894881

    SHA1

    5db711ce62e37158b8f02b4ae549866c862d3cf8

    SHA256

    10f9429ce5c20c567441c55a0e7c906a7fbeec8cc7ed9e62f3333f2a9a898410

    SHA512

    137924cf7b31719a0bef5631a3b7ff230b4eb92edf8703cd230dbb9342442c4c023aa3b99fd310b2d2d64b23279288027393480bf5b73456a595d73ee3f2891e

  • C:\Users\Admin\AppData\Local\Temp\oXAL8a7a.xlsm

    Filesize

    21KB

    MD5

    33708c5dd436e099b2a041b6371b4b9e

    SHA1

    9f244ecae39dd60cbf37be5fd264bb3c33734306

    SHA256

    b069d2de682ccb7b7070697875093e4c7fc12dc24ca016da75cdf740fc721f1f

    SHA512

    a845f78fbe5a07e570fe63022ebff375b2ceec4e5e29abb8451bf5b0235a2250e9915bf1aaa1ef922c2882328d27fbbcedc748f70ae9c492c9ebb30656212d72

  • C:\Users\Admin\AppData\Local\Temp\oXAL8a7a.xlsm

    Filesize

    22KB

    MD5

    c51a964d02546ec596faa08b1874de32

    SHA1

    c36e072abb842ba960acbf224276a98efd8a9341

    SHA256

    f781880c672b1493847201dd6844e438a53bc64679d0ad7ab395c1b24f434752

    SHA512

    517a89ca20b5cf16562eab5faea13c8401befad5cfa052ef2c18cab4218f37535cd53ea37097b486d57047eb17ef443d2ce0c63c21a081a25ed8786d086e2574

  • C:\Users\Admin\AppData\Local\Temp\tmp147A.tmp

    Filesize

    1KB

    MD5

    d5af2ab182709f5e5505cfdb0ca7c4b6

    SHA1

    a5bb9cae260e00f64bc3c6d66968ff0fac6f6580

    SHA256

    cc1d98debf3da3e6922db2f9500eb4f8fbc1ce6762173705aed731d8f1b08c77

    SHA512

    b3cefc740c27c8d56d2288460cc9a9a5241e3e6c2020084070bee919b5742efd7585603f762e77b074cee5b75e5c05dce14af15d26717a4496231d5a74c81244

  • C:\Users\Admin\AppData\Local\Temp\~$oXAL8a7a.xlsm

    Filesize

    165B

    MD5

    ff09371174f7c701e75f357a187c06e8

    SHA1

    57f9a638fd652922d7eb23236c80055a91724503

    SHA256

    e4ba04959837c27019a2349015543802439e152ddc4baf4e8c7b9d2b483362a8

    SHA512

    e4d01e5908e9f80b7732473ec6807bb7faa5425e3154d5642350f44d7220af3cffd277e0b67bcf03f1433ac26a26edb3ddd3707715b61d054b979fbb4b453882

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

    Filesize

    7KB

    MD5

    8ff7e5a301686f72b0660538129c1a67

    SHA1

    64bad093a145a1d53681125354ea71184f07c429

    SHA256

    228834d96159cf445aeeccae72aae7127c4e80833e7b38de73c0592cc5fd8812

    SHA512

    ac56f4c3741b252cb82c3188fb34d89ddeb8791b36d6d17c33e3bfca348b29af42a4722e3f61a3c7865b192d481858058252a81c7ac1510de39d05f802e2a166

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

    Filesize

    7KB

    MD5

    830743b4c463c52bca09c158f0cebb13

    SHA1

    c9efc638bf3f56288019a83b7a663fb08684d30e

    SHA256

    f659ac98c2c20b35120c5ed4e0e7a7c340c4c54b2ff8213c215789fec71beb8b

    SHA512

    3765107f97d913af005d38d0ca1839ef72d958e98100eddb968c078c64fcebb952a8d8f9d900d5d641d80af3869c3b2075451f2e11791e5f1ee66f849e926bc7

  • \Users\Admin\AppData\Local\Temp\._cache_396b9c091d6328765df31c29d2e6e5e28f2472d63052ec39447d4325b8f3bf53.exe

    Filesize

    483KB

    MD5

    13e2266694c6d450ed6320e775ea6ca0

    SHA1

    2a700c9c8179aec8c1f3b5e51adf064655694202

    SHA256

    14fafc8d570493d28077c853810754b4f5f7c803a58bf05456d4d197862191b4

    SHA512

    121f24d2433bd3c0b60126259e12ce2c990aef48635f5297ec37db9ce3337301408b6b2f4562936d803341c40e4f68ed51ccc05319920c8d7b0300b007d8600e

  • memory/1640-67-0x0000000000260000-0x0000000000276000-memory.dmp

    Filesize

    88KB

  • memory/1640-63-0x0000000000AE0000-0x0000000000FF6000-memory.dmp

    Filesize

    5.1MB

  • memory/2092-21-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB

  • memory/2092-24-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB

  • memory/2092-35-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB

  • memory/2092-34-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2092-32-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB

  • memory/2092-31-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB

  • memory/2092-36-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB

  • memory/2092-28-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB

  • memory/2092-26-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB

  • memory/2092-23-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB

  • memory/2372-3-0x00000000003F0000-0x000000000040E000-memory.dmp

    Filesize

    120KB

  • memory/2372-39-0x0000000074D60000-0x000000007544E000-memory.dmp

    Filesize

    6.9MB

  • memory/2372-1-0x0000000000CA0000-0x00000000011B6000-memory.dmp

    Filesize

    5.1MB

  • memory/2372-2-0x0000000074D60000-0x000000007544E000-memory.dmp

    Filesize

    6.9MB

  • memory/2372-7-0x0000000005F60000-0x00000000060DE000-memory.dmp

    Filesize

    1.5MB

  • memory/2372-0-0x0000000074D6E000-0x0000000074D6F000-memory.dmp

    Filesize

    4KB

  • memory/2372-6-0x0000000000350000-0x0000000000366000-memory.dmp

    Filesize

    88KB

  • memory/2372-5-0x0000000074D60000-0x000000007544E000-memory.dmp

    Filesize

    6.9MB

  • memory/2372-4-0x0000000074D6E000-0x0000000074D6F000-memory.dmp

    Filesize

    4KB

  • memory/2448-112-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2448-190-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2540-99-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB

  • memory/2540-93-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2540-188-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB

  • memory/2540-189-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB

  • memory/2540-193-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB

  • memory/2540-232-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB