Analysis

  • max time kernel
    118s
  • max time network
    41s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 23:50

General

  • Target

    ceb8e3b6055c093d73b740ec68aeb2b35688c70ead8d53f9221c677049213905.exe

  • Size

    1018KB

  • MD5

    6ac52086b2353d329f2c6b96dfc4b2bd

  • SHA1

    c9ab0a3a4c3439d15ad30a6ea0ad738296853b24

  • SHA256

    ceb8e3b6055c093d73b740ec68aeb2b35688c70ead8d53f9221c677049213905

  • SHA512

    c86f4ce9c915419fe4f43af577ac930413665e4ae9df7453047abe445a08f3910a2e7929d580ba57ecf694302e4f08949ca24278e5f463cc947f32036979f6ff

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • VMProtect packed file 6 IoCs

    Detects executables packed with VMProtect commercial packer.

  • Drops startup file 2 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ceb8e3b6055c093d73b740ec68aeb2b35688c70ead8d53f9221c677049213905.exe
    "C:\Users\Admin\AppData\Local\Temp\ceb8e3b6055c093d73b740ec68aeb2b35688c70ead8d53f9221c677049213905.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1824
    • C:\ProgramData\Decoder.exe
      "C:\ProgramData\Decoder.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:660
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /sc MINUTE /mo 1 /tn "Windows Services" /tr "\systems32_bit\systems32.exe" /f
        3⤵
        • Creates scheduled task(s)
        PID:688
    • C:\Windows\system32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\.cmd""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1708
      • C:\Windows\system32\timeout.exe
        timeout 4
        3⤵
        • Delays execution with timeout.exe
        PID:1324
    • C:\Windows\system32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp7F00.tmp.cmd""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1032
      • C:\Windows\system32\timeout.exe
        timeout 4
        3⤵
        • Delays execution with timeout.exe
        PID:1584
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {3A18831A-F1DD-4787-916B-63D2FFFBE502} S-1-5-21-790309383-526510583-3802439154-1000:TVHJCWMH\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:137100
    • C:\systems32_bit\systems32.exe
      \systems32_bit\systems32.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:138024
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /sc MINUTE /mo 1 /tn "Windows Services" /tr "\systems32_bit\systems32.exe" /f
        3⤵
        • Creates scheduled task(s)
        PID:138116

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\ProgramData\Decoder.exe

    Filesize

    148KB

    MD5

    21998709466c12a52cbc5aff86744aae

    SHA1

    5cbb11d167af1e1e1d10f920b084e26a89d5441f

    SHA256

    96d5aff39e576f94994c005b9b7db5d41a6f8db9505f4a462d259f2141830c03

    SHA512

    75398142630308dcf5d90f75b5eafab0a182d63522626cff3798973ab098fc80fda1c767aa6c14649951a54130b8ac12bdcfd8d2e09e01b8cbd91b552b8a3862

  • C:\ProgramData\Decoder.exe

    Filesize

    148KB

    MD5

    21998709466c12a52cbc5aff86744aae

    SHA1

    5cbb11d167af1e1e1d10f920b084e26a89d5441f

    SHA256

    96d5aff39e576f94994c005b9b7db5d41a6f8db9505f4a462d259f2141830c03

    SHA512

    75398142630308dcf5d90f75b5eafab0a182d63522626cff3798973ab098fc80fda1c767aa6c14649951a54130b8ac12bdcfd8d2e09e01b8cbd91b552b8a3862

  • C:\Users\Admin\AppData\Local\Temp\.cmd

    Filesize

    28B

    MD5

    217407484aac2673214337def8886072

    SHA1

    0f8c4c94064ce1f7538c43987feb5bb2d7fec0c6

    SHA256

    467c28ed423f513128575b1c8c6674ee5671096ff1b14bc4c32deebd89fc1797

    SHA512

    8466383a1cb71ea8b049548fd5a41aaf01c0423743b886cd3cb5007f66bff87d8d5cfa67344451f4490c8f26e4ebf9e306075d5cfc655dc62f0813a456cf1330

  • C:\Users\Admin\AppData\Local\Temp\tmp7F00.tmp.cmd

    Filesize

    131B

    MD5

    0a15623b4a5b3ba1331220c1d1c465be

    SHA1

    d15a252f01d701bb6665d10265f646fb04193908

    SHA256

    49903886e7b7420ddda3aa394df07711918c92971867f6dd83d0b758360f50e6

    SHA512

    c76d9551f7e1d2704df1a8e73fa5132bed31d22e4a26fd9a7145a6379a78594574934666201e65f68f039fe5f070a0e7afdaadba7c6e955cf10470f990986934

  • C:\systems32_bit\systems32.exe

    Filesize

    148KB

    MD5

    21998709466c12a52cbc5aff86744aae

    SHA1

    5cbb11d167af1e1e1d10f920b084e26a89d5441f

    SHA256

    96d5aff39e576f94994c005b9b7db5d41a6f8db9505f4a462d259f2141830c03

    SHA512

    75398142630308dcf5d90f75b5eafab0a182d63522626cff3798973ab098fc80fda1c767aa6c14649951a54130b8ac12bdcfd8d2e09e01b8cbd91b552b8a3862

  • C:\systems32_bit\systems32.exe

    Filesize

    148KB

    MD5

    21998709466c12a52cbc5aff86744aae

    SHA1

    5cbb11d167af1e1e1d10f920b084e26a89d5441f

    SHA256

    96d5aff39e576f94994c005b9b7db5d41a6f8db9505f4a462d259f2141830c03

    SHA512

    75398142630308dcf5d90f75b5eafab0a182d63522626cff3798973ab098fc80fda1c767aa6c14649951a54130b8ac12bdcfd8d2e09e01b8cbd91b552b8a3862

  • memory/660-57-0x0000000000000000-mapping.dmp

  • memory/660-60-0x0000000000260000-0x0000000000292000-memory.dmp

    Filesize

    200KB

  • memory/688-68-0x0000000000000000-mapping.dmp

  • memory/1032-62-0x0000000000000000-mapping.dmp

  • memory/1324-65-0x0000000000000000-mapping.dmp

  • memory/1584-66-0x0000000000000000-mapping.dmp

  • memory/1708-61-0x0000000000000000-mapping.dmp

  • memory/1824-54-0x0000000000E10000-0x0000000000F14000-memory.dmp

    Filesize

    1.0MB

  • memory/1824-56-0x000007FEFB851000-0x000007FEFB853000-memory.dmp

    Filesize

    8KB

  • memory/1824-55-0x0000000000DA0000-0x0000000000E16000-memory.dmp

    Filesize

    472KB

  • memory/138024-69-0x0000000000000000-mapping.dmp

  • memory/138024-72-0x0000000000C20000-0x0000000000C52000-memory.dmp

    Filesize

    200KB

  • memory/138116-74-0x0000000000000000-mapping.dmp