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Analysis

  • max time kernel
    144s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    16/02/2024, 09:24

General

  • Target

    a00578f7146ca07d408809a45a1ef9eb.exe

  • Size

    1.1MB

  • MD5

    a00578f7146ca07d408809a45a1ef9eb

  • SHA1

    3b59cebd2112fd08fe7e128d750eb3876763a3ef

  • SHA256

    57a08a9176c41262cf25a6294d7a1aebf712835eb5d64876846e1aae46d19b0d

  • SHA512

    85764827c35f26a69194fb108e21c28b7a4c69346d74d344b79d6c14061828f390c3e64d94a521fcaa6ccf776723679782807efa211f325f2c1bf20807379445

  • SSDEEP

    24576:4AHnh+eWsN3skA4RV1Hom2KXMmHa97aWtjzjFtuM254:/h+ZkldoPK8Ya971XjFtA4

Score
10/10

Malware Config

Extracted

Family

limerat

Wallets

1JBKLGyE6AnRGvk92A8x3m8qmXfh3fcEty

Attributes
  • aes_key

    nulled

  • antivm

    true

  • c2_url

    https://pastebin.com/raw/cXuQ0V20

  • delay

    3

  • download_payload

    false

  • install

    false

  • install_name

    Winservices.exe

  • main_folder

    AppData

  • pin_spread

    false

  • sub_folder

    \

  • usb_spread

    true

Extracted

Family

limerat

Attributes
  • antivm

    false

  • c2_url

    https://pastebin.com/raw/cXuQ0V20

  • download_payload

    false

  • install

    false

  • pin_spread

    false

  • usb_spread

    false

Signatures

  • LimeRAT

    Simple yet powerful RAT for Windows machines written in .NET.

  • Executes dropped EXE 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 3 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a00578f7146ca07d408809a45a1ef9eb.exe
    "C:\Users\Admin\AppData\Local\Temp\a00578f7146ca07d408809a45a1ef9eb.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2220
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
      2⤵
      • Maps connected drives based on registry
      • Suspicious use of AdjustPrivilegeToken
      PID:1704
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\SysWOW64\schtasks.exe" /create /tn SettingSyncHost /tr "C:\Users\Admin\secinit\sdchange.exe" /sc minute /mo 1 /F
      2⤵
      • Creates scheduled task(s)
      PID:2564
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {D795BE3A-0145-43E2-B89C-2F1F58407521} S-1-5-21-3627615824-4061627003-3019543961-1000:SCFGBRBT\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1576
    • C:\Users\Admin\secinit\sdchange.exe
      C:\Users\Admin\secinit\sdchange.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:2992
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
        3⤵
          PID:2860
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\SysWOW64\schtasks.exe" /create /tn SettingSyncHost /tr "C:\Users\Admin\secinit\sdchange.exe" /sc minute /mo 1 /F
          3⤵
          • Creates scheduled task(s)
          PID:2912
      • C:\Users\Admin\secinit\sdchange.exe
        C:\Users\Admin\secinit\sdchange.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1568
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
          3⤵
            PID:984
          • C:\Windows\SysWOW64\schtasks.exe
            "C:\Windows\SysWOW64\schtasks.exe" /create /tn SettingSyncHost /tr "C:\Users\Admin\secinit\sdchange.exe" /sc minute /mo 1 /F
            3⤵
            • Creates scheduled task(s)
            PID:3024

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

        Filesize

        65KB

        MD5

        ac05d27423a85adc1622c714f2cb6184

        SHA1

        b0fe2b1abddb97837ea0195be70ab2ff14d43198

        SHA256

        c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

        SHA512

        6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

      • C:\Users\Admin\AppData\Local\Temp\Tar373C.tmp

        Filesize

        171KB

        MD5

        9c0c641c06238516f27941aa1166d427

        SHA1

        64cd549fb8cf014fcd9312aa7a5b023847b6c977

        SHA256

        4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

        SHA512

        936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

      • C:\Users\Admin\secinit\sdchange.exe

        Filesize

        1.1MB

        MD5

        bcdc3e907838c94e011e7f3dd5b132d9

        SHA1

        d68c33539f55708672e3694ac570cca11f73c367

        SHA256

        8bc339909b150a7eb98bafa94be78f3702841deaa8fc3ce61085c63ae65d0150

        SHA512

        603b2348775955993004ddf8bdea7c5c5f279fa1ffae94ff747313b4f87793e05196ddc2dbbd4d2a0a363dd1201f424fc15afb9770b00975f392d4573ebb18e5

      • memory/984-73-0x0000000073AE0000-0x000000007408B000-memory.dmp

        Filesize

        5.7MB

      • memory/984-72-0x0000000073AE0000-0x000000007408B000-memory.dmp

        Filesize

        5.7MB

      • memory/1568-71-0x00000000001D0000-0x00000000001D1000-memory.dmp

        Filesize

        4KB

      • memory/1704-8-0x0000000000400000-0x000000000040C000-memory.dmp

        Filesize

        48KB

      • memory/1704-12-0x0000000073AE0000-0x000000007408B000-memory.dmp

        Filesize

        5.7MB

      • memory/1704-9-0x0000000000400000-0x000000000040C000-memory.dmp

        Filesize

        48KB

      • memory/1704-49-0x0000000073AE0000-0x000000007408B000-memory.dmp

        Filesize

        5.7MB

      • memory/1704-0-0x0000000000400000-0x000000000040C000-memory.dmp

        Filesize

        48KB

      • memory/1704-5-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/1704-2-0x0000000000400000-0x000000000040C000-memory.dmp

        Filesize

        48KB

      • memory/2220-7-0x0000000000110000-0x0000000000111000-memory.dmp

        Filesize

        4KB

      • memory/2860-60-0x0000000073AE0000-0x000000007408B000-memory.dmp

        Filesize

        5.7MB

      • memory/2860-61-0x0000000073AE0000-0x000000007408B000-memory.dmp

        Filesize

        5.7MB