Resubmissions

04-12-2024 17:57

241204-wjtk6stnbv 10

04-12-2024 17:56

241204-wh7fmstmhv 10

Analysis

  • max time kernel
    150s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    04-12-2024 17:57

General

  • Target

    infected.zip

  • Size

    150KB

  • MD5

    4d2bbf72163ad6780dce566d7d4697fb

  • SHA1

    e7740524b3e1f3b2fa286a785d50f8e79e0d3a74

  • SHA256

    a843d7d2ee7568c099ad7b0170528cc60d925c3803968dcb24c5c4c9294ae7d5

  • SHA512

    b0c252b3b28070f8cb971e312dc18e2fe6fad4d1b9997a526e9b071187bdaf1ba7e2994e12f4fa88dbb73d1b4af5ff53c5424578ddb0c802c34c56c2cba1e0d1

  • SSDEEP

    3072:kTs9XqFJSl5nxGRv70FtS+WFHfVNYk/294S5FgsuSdwoSygdYYOULr:kAXeMlhDS+Wlfb2qjIwo76P

Malware Config

Signatures

  • Wannacry

    WannaCry is a ransomware cryptoworm.

  • Wannacry family
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 1 IoCs
  • Modifies file permissions 1 TTPs 3 IoCs
  • File and Directory Permissions Modification: Windows File and Directory Permissions Modification 1 TTPs
  • Drops file in System32 directory 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 11 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies data under HKEY_USERS 24 IoCs
  • Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs
  • Views/modifies file attributes 1 TTPs 3 IoCs

Processes

  • C:\Program Files\7-Zip\7zFM.exe
    "C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\infected.zip"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:388
  • C:\Users\Admin\Desktop\ce2194c96ebab334f8484a7a3e45e2c3bb74296fc5eddd335abf3f5c65f34967.exe
    "C:\Users\Admin\Desktop\ce2194c96ebab334f8484a7a3e45e2c3bb74296fc5eddd335abf3f5c65f34967.exe"
    1⤵
    • Executes dropped EXE
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2752
    • C:\WINDOWS\tasksche.exe
      C:\WINDOWS\tasksche.exe /i
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2784
      • C:\ProgramData\lxejlrdtqen920\tasksche.exe
        C:\ProgramData\lxejlrdtqen920\tasksche.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2052
        • C:\Windows\SysWOW64\attrib.exe
          attrib +h .
          4⤵
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:2508
        • C:\Windows\SysWOW64\icacls.exe
          icacls . /grant Everyone:F /T /C /Q
          4⤵
          • Modifies file permissions
          • System Location Discovery: System Language Discovery
          PID:1964
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h .
        3⤵
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:620
      • C:\Windows\SysWOW64\icacls.exe
        icacls . /grant Everyone:F /T /C /Q
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:2976
  • C:\Users\Admin\Desktop\ce2194c96ebab334f8484a7a3e45e2c3bb74296fc5eddd335abf3f5c65f34967.exe
    C:\Users\Admin\Desktop\ce2194c96ebab334f8484a7a3e45e2c3bb74296fc5eddd335abf3f5c65f34967.exe -m security
    1⤵
    • Executes dropped EXE
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Modifies data under HKEY_USERS
    PID:2756
  • C:\Windows\system32\cmd.exe
    cmd.exe /c "C:\ProgramData\lxejlrdtqen920\tasksche.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2624
    • C:\ProgramData\lxejlrdtqen920\tasksche.exe
      C:\ProgramData\lxejlrdtqen920\tasksche.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: CmdExeWriteProcessMemorySpam
      • Suspicious use of WriteProcessMemory
      PID:2632
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h .
        3⤵
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:2676
      • C:\Windows\SysWOW64\icacls.exe
        icacls . /grant Everyone:F /T /C /Q
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:2228
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:272

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\Desktop\ce2194c96ebab334f8484a7a3e45e2c3bb74296fc5eddd335abf3f5c65f34967.exe

    Filesize

    6.4MB

    MD5

    8a016c4ee71532f20b892bb35eb954f4

    SHA1

    204c97ab720d12e6fa04cd8bea6da019c1d4317e

    SHA256

    ce2194c96ebab334f8484a7a3e45e2c3bb74296fc5eddd335abf3f5c65f34967

    SHA512

    a0ecffce2b724287e8ab01d23d95839d7e522bc27dc14be26b5089bf8704a46c176a87f02648f6ba646938217afb1b33c6e6557ff3dce528497d9b321310c9bd

  • C:\Windows\tasksche.exe

    Filesize

    3.4MB

    MD5

    a27cfbfad728fa5ec8e701a6f93cab26

    SHA1

    deba582c9c8f059590132395f987c2acf54e7a7f

    SHA256

    c0057fd3141966017014beb71fa2e31d84d3ddd2a9f20e3e6ee26df8165a531f

    SHA512

    8c095ccb3367903bc5498d0222ee537ef2bbd4f4204fe9a9a9babe2426d8a377240a15892e248e6e252bf3b229eecc8b1c960136988bf3398941e20a1e542b5d

  • memory/272-18-0x0000000140000000-0x00000001405E8000-memory.dmp

    Filesize

    5.9MB

  • memory/272-19-0x0000000140000000-0x00000001405E8000-memory.dmp

    Filesize

    5.9MB

  • memory/272-20-0x0000000140000000-0x00000001405E8000-memory.dmp

    Filesize

    5.9MB

  • memory/272-21-0x0000000140000000-0x00000001405E8000-memory.dmp

    Filesize

    5.9MB

  • memory/2752-3-0x0000000000400000-0x0000000000A73000-memory.dmp

    Filesize

    6.4MB

  • memory/2752-12-0x0000000000400000-0x0000000000A73000-memory.dmp

    Filesize

    6.4MB

  • memory/2756-17-0x0000000000400000-0x0000000000A73000-memory.dmp

    Filesize

    6.4MB