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Analysis

  • max time kernel
    149s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    19/09/2022, 06:58

General

  • Target

    7b98601cdf3dc125e18217e24207a1631f3f4aa9c0c10e1c101e98801d75f595.exe

  • Size

    128KB

  • MD5

    a4b06792bbb73e3a1a302517f7eeba6d

  • SHA1

    f3c01fee3204bf8d2010bc92bdd1301d7e9f0d73

  • SHA256

    7b98601cdf3dc125e18217e24207a1631f3f4aa9c0c10e1c101e98801d75f595

  • SHA512

    593725354388af2e13fada0701c2b0343e2d0944434c0376c8fad3910a8cfbe6881b372a103ba9208b4786aadfb2114c70a33d7f53f33b8b265d9c9bb422255d

  • SSDEEP

    3072:B0d4nDbfagCqKZk5yY/NdknZpepjBW/aWVPLQ7TjTgUtnRMr:yd4nDWgRAkPOZI/GrVPswUrA

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7b98601cdf3dc125e18217e24207a1631f3f4aa9c0c10e1c101e98801d75f595.exe
    "C:\Users\Admin\AppData\Local\Temp\7b98601cdf3dc125e18217e24207a1631f3f4aa9c0c10e1c101e98801d75f595.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1896
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\7B9860~1.EXE > nul
      2⤵
      • Deletes itself
      PID:1460
  • C:\Windows\SysWOW64\caycwq.exe
    C:\Windows\SysWOW64\caycwq.exe
    1⤵
    • Executes dropped EXE
    • Checks processor information in registry
    PID:1920

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\caycwq.exe

    Filesize

    128KB

    MD5

    a4b06792bbb73e3a1a302517f7eeba6d

    SHA1

    f3c01fee3204bf8d2010bc92bdd1301d7e9f0d73

    SHA256

    7b98601cdf3dc125e18217e24207a1631f3f4aa9c0c10e1c101e98801d75f595

    SHA512

    593725354388af2e13fada0701c2b0343e2d0944434c0376c8fad3910a8cfbe6881b372a103ba9208b4786aadfb2114c70a33d7f53f33b8b265d9c9bb422255d

  • C:\Windows\SysWOW64\caycwq.exe

    Filesize

    128KB

    MD5

    a4b06792bbb73e3a1a302517f7eeba6d

    SHA1

    f3c01fee3204bf8d2010bc92bdd1301d7e9f0d73

    SHA256

    7b98601cdf3dc125e18217e24207a1631f3f4aa9c0c10e1c101e98801d75f595

    SHA512

    593725354388af2e13fada0701c2b0343e2d0944434c0376c8fad3910a8cfbe6881b372a103ba9208b4786aadfb2114c70a33d7f53f33b8b265d9c9bb422255d

  • memory/1896-54-0x0000000076181000-0x0000000076183000-memory.dmp

    Filesize

    8KB

  • memory/1896-55-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1896-56-0x0000000000430000-0x0000000000454000-memory.dmp

    Filesize

    144KB

  • memory/1896-61-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1896-62-0x0000000000430000-0x0000000000454000-memory.dmp

    Filesize

    144KB

  • memory/1920-63-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1920-64-0x00000000003A0000-0x00000000003C4000-memory.dmp

    Filesize

    144KB

  • memory/1920-65-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1920-66-0x00000000003A0000-0x00000000003C4000-memory.dmp

    Filesize

    144KB