Overview

overview

9

Static

static

3

7a5e813ec4...9f.exe

windows7-x64

9

7a5e813ec4...9f.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    27/02/2024, 17:45

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General

  • Target

    7a5e813ec451cde49346d7e18aca31065846cafe52d88d08918a297196a6a49f.exe

  • Size

    151KB

  • MD5

    31ed39e13ae9da7fa610f85b56838dde

  • SHA1

    ff602997ce7bdd695a282bd373daf57bea7a051f

  • SHA256

    7a5e813ec451cde49346d7e18aca31065846cafe52d88d08918a297196a6a49f

  • SHA512

    199d70b70636555fbe753e83662cc672b5b06428050229856e9912488037cb4dae34a0766c3fcc560afd8fb07a4dcb5cfd8435a0fe3db86484a7929218cab5ee

  • SSDEEP

    3072:lAMP+TYgJWo6QD6ivAFvvYknplbZVaX6TEQZwRNfysqdoTPwum3n:OZNMnQFvM/lbbHTFZw/fLm3n

Score
9/10
ransomwarespywarestealer

Malware Config

Signatures

  • Renames multiple (7791) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Enumerates connected drives 3 TTPs 25 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

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

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

    persistence
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\7a5e813ec451cde49346d7e18aca31065846cafe52d88d08918a297196a6a49f.exe
    "C:\Users\Admin\AppData\Local\Temp\7a5e813ec451cde49346d7e18aca31065846cafe52d88d08918a297196a6a49f.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1700
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c SCHTASKS.exe /Create /RU "NT AUTHORITY\SYSTEM" /sc onstart /TN "Windows Update BETA" /TR "C:\Users\Admin\AppData\Local\Temp\7a5e813ec451cde49346d7e18aca31065846cafe52d88d08918a297196a6a49f.exe" /F
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2176
      • C:\Windows\SysWOW64\schtasks.exe
        SCHTASKS.exe /Create /RU "NT AUTHORITY\SYSTEM" /sc onstart /TN "Windows Update BETA" /TR "C:\Users\Admin\AppData\Local\Temp\7a5e813ec451cde49346d7e18aca31065846cafe52d88d08918a297196a6a49f.exe" /F
        3⤵
        • Creates scheduled task(s)
        PID:2640
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c "C:\ProgramData\LPW4.tmp"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1812
      • C:\ProgramData\LPW4.tmp
        C:\ProgramData\LPW4.tmp
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:332
        • C:\Windows\SysWOW64\cmd.exe
          cmd.exe /c ping 127.0.0.1 -n 5 > nul & del "C:\ProgramData\LPW4.tmp"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:576
          • C:\Windows\SysWOW64\PING.EXE
            ping 127.0.0.1 -n 5
            5⤵
            • Runs ping.exe
            PID:1488
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c SCHTASKS.exe /Delete /TN "Windows Update BETA" /F
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2340
      • C:\Windows\SysWOW64\schtasks.exe
        SCHTASKS.exe /Delete /TN "Windows Update BETA" /F
        3⤵
          PID:1824
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2656

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\ProgramData\CYLANCE_README.txt
      Filesize

      1KB

      MD5

      61348b179cef64a54515a52655438f3c

      SHA1

      9a8ba7251b8a3df3e70b9d979c115d5daafa0be9

      SHA256

      c20e8f0ee899a3ade4307cb34e9119ed428a290fab7b54e6bb7a88c0113131a7

      SHA512

      6b8e84adb8d50b7ff8751f6040f838e55ee94fb4a3e3cde084fdcf6b41e9af045d58f296f642f5794cda805f62bd00e546af38c33e132311d022a22300c0703a

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    • C:\ProgramData\LPW4.tmp
      Filesize

      5KB

      MD5

      ab65af4349e7c5b0872c8b808d036980

      SHA1

      414b2a2748b7ea6176c1d2453f89fdc8a2d349d0

      SHA256

      a6c41f368f42a7c57c307a48ce2440a60a744226b6414fadb6517a80a5d160a2

      SHA512

      2c61c56e8c299677bad4ce223e3187200c341aa4dd4503fac1217aa8e15687af03544a6d160bb2b1b131a56ea9df2967e00359aa622f12d1b82605c40cca6679

      Download Submit