Analysis

  • max time kernel
    4294195s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20220223-en
  • submitted
    01-03-2022 18:34

General

  • Target

    ramnitdouble-original.vbs

  • Size

    331KB

  • MD5

    8e1cc1e4ccefee63008ff49219345a44

  • SHA1

    73f71bdf3c986caab0482a503700b24150d84b20

  • SHA256

    b41d64df33eff5fe041782eb6b1d54121b35985aaf57ef852dbdf08f4a7abc2e

  • SHA512

    6e8b9cbf03b6df893e9323e7ae70937d7223dc4f217b5b093f0cc831f3b6c58bdc422dd7e27be79037339268949005b0b395f585d50c40acca5869ee1bf6d9d7

Malware Config

Signatures

  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Executes dropped EXE 4 IoCs
  • UPX packed file 10 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Loads dropped DLL 1 IoCs
  • Drops file in Program Files directory 7 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SetWindowsHookEx 14 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\ramnitdouble-original.vbs"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1108
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:1628
      • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
        "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1216
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1064
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1064 CREDAT:275457 /prefetch:2
            5⤵
            • Suspicious use of SetWindowsHookEx
            PID:1068
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:588
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe"
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1416
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1416 CREDAT:275457 /prefetch:2
          4⤵
          • Suspicious use of SetWindowsHookEx
          PID:1524
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2036
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe"
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1376
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1376 CREDAT:275457 /prefetch:2
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:540

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{302D7531-998E-11EC-9BD3-76209A3BB9C1}.dat
    MD5

    6a9ba052dbdd575149c13059a18cbcac

    SHA1

    6d907b9ff3e7bb53e36efdcb4d75a78a2c9e7eb1

    SHA256

    604f8a37de88c9bba5de68699d365ddbd7ba5dd59728e518c3b21a53f97b5c67

    SHA512

    ba03bf6d1361312d8096cdf304708d96afa8e3d4d77e68bfb30ef4e63812bca56fc1b1a4d3c7ee3305dc982b397123bcc9e762ca5eb4076036a62ecf5aeddbe4

  • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{302FAF81-998E-11EC-9BD3-76209A3BB9C1}.dat
    MD5

    58d12a7b0e5f08c309b145f11e65a566

    SHA1

    8779a2e4ebdffbf95d3258527a2c28e9d251046a

    SHA256

    5c77c80134831d1b20abb45dcca04251ea6ce3419cfa248d3108429f21731afb

    SHA512

    3e792010ef5071f1ae7890c7bf70606967ddb0211b58ea9e013313fa5cfdefcb2d19f6214737d76dd286af91cbc810a618f767b913385eec9ed579aba8956b86

  • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{302FAF81-998E-11EC-9BD3-76209A3BB9C1}.dat
    MD5

    ac2c9c32dabe4daf92e6f296b111f4e3

    SHA1

    8949f5ccd5fbd474a416d27251658ce37bcbfd64

    SHA256

    db6a9788a499858c2e53c4b4c65f03de7dfd077652a3f3c8b6e40ded61beec40

    SHA512

    fd13e6be2c03ceeab4720415945cf4c4473d3134a56cee23d7a43aaf572ae489ff624c82ba1236aaa6e20772de58d917204499152352a0a833ed6fcc8a5cff73

  • C:\Users\Admin\AppData\Local\Temp\svchost.exe
    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • C:\Users\Admin\AppData\Local\Temp\svchost.exe
    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • C:\Users\Admin\AppData\Local\Temp\svchost.exe
    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • C:\Users\Admin\AppData\Local\Temp\svchost.exe
    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\5TPFU3BY.txt
    MD5

    cbee6e419ef58c3a3bb1e8bc0d3fff8f

    SHA1

    10491a13ddac2fa792dfcf229ca63d1fdb40e79b

    SHA256

    2c4e195bd5313dfe2e1ea5fdc5dab6929b3bffae584ecf687fb5191a67abf794

    SHA512

    a0b0cf0d8f484254dccda64e0596ac78182019549e0c5646e9b5342e62c41c10cd25042503299b938d4011ea99ddc035d528225c507d9ec13582fd05d46f611c

  • \Program Files (x86)\Microsoft\DesktopLayer.exe
    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • memory/588-71-0x0000000000400000-0x000000000042E000-memory.dmp
    Filesize

    184KB

  • memory/1108-54-0x000007FEFC321000-0x000007FEFC323000-memory.dmp
    Filesize

    8KB

  • memory/1216-70-0x0000000000400000-0x000000000042E000-memory.dmp
    Filesize

    184KB

  • memory/1216-69-0x00000000001D0000-0x00000000001D1000-memory.dmp
    Filesize

    4KB

  • memory/1628-63-0x0000000000400000-0x000000000042E000-memory.dmp
    Filesize

    184KB

  • memory/1628-56-0x0000000076771000-0x0000000076773000-memory.dmp
    Filesize

    8KB

  • memory/2036-67-0x0000000000240000-0x0000000000241000-memory.dmp
    Filesize

    4KB