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Analysis

  • max time kernel
    141s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    25/01/2024, 13:02

General

  • Target

    74c404214425909795400cec52229681.exe

  • Size

    99KB

  • MD5

    74c404214425909795400cec52229681

  • SHA1

    fdd4a7d5a668afeb3504134ad66b6dc6b468691b

  • SHA256

    908171e6cd48f30bc8c9af2f5f74d1eed90e1999943b1e8411c0f6caed0c706d

  • SHA512

    d6213ba9447783fdd05b2a0ed07399b21ab25675b7de5503227f24f5d684742f6d0985f35b11731b026de10a02fdc087b8e0de0ea41dcdec641358573a22d913

  • SSDEEP

    3072:sr3KcWmjRrzSGvgaaZ1RoI965Wma51YzJfck0:/WlE1RX968bTYzJfck0

Malware Config

Signatures

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

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

  • UPX packed file 5 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\74c404214425909795400cec52229681.exe
    "C:\Users\Admin\AppData\Local\Temp\74c404214425909795400cec52229681.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1080
    • C:\Users\Admin\AppData\Local\Temp\TfucnG0PNaoWSaF.exe
      C:\Users\Admin\AppData\Local\Temp\TfucnG0PNaoWSaF.exe
      2⤵
      • Executes dropped EXE
      PID:2044
    • C:\Windows\CTS.exe
      "C:\Windows\CTS.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:2360

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\TfucnG0PNaoWSaF.exe

    Filesize

    99KB

    MD5

    0f5536d2dc8b733b4bf077bd274b327e

    SHA1

    e87472d3bafbdb8c0d9e163ac87dd1f4b38dbac7

    SHA256

    d325bb58422b9172c290da19c7accad7ee22ad5ccbb947bfb932f591f5b7ac8d

    SHA512

    8a7bde33ee1d47a3be3a1edb7984c61e81aa08d634144cf96c545ec7ff8dd79c9d9d694d6a80c2aeb19a2f186385427ab61ec840d6ee4ebb01d60624adf95787

  • C:\Windows\CTS.exe

    Filesize

    35KB

    MD5

    93e5f18caebd8d4a2c893e40e5f38232

    SHA1

    fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6

    SHA256

    a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8

    SHA512

    986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54

  • \Users\Admin\AppData\Local\Temp\TfucnG0PNaoWSaF.exe

    Filesize

    64KB

    MD5

    a32a382b8a5a906e03a83b4f3e5b7a9b

    SHA1

    11e2bdd0798761f93cce363329996af6c17ed796

    SHA256

    75f12ea2f30d9c0d872dade345f30f562e6d93847b6a509ba53beec6d0b2c346

    SHA512

    ec87dd957be21b135212454646dcabdd7ef9442cf714e2c1f6b42b81f0c3fa3b1875bde9a8b538e8a0aa2190225649c29e9ed0f25176e7659e55e422dd4efe4c

  • memory/1080-0-0x0000000000FF0000-0x0000000001007000-memory.dmp

    Filesize

    92KB

  • memory/1080-15-0x0000000000FF0000-0x0000000001007000-memory.dmp

    Filesize

    92KB

  • memory/1080-17-0x0000000000EA0000-0x0000000000EB7000-memory.dmp

    Filesize

    92KB

  • memory/1080-24-0x0000000000EA0000-0x0000000000EB7000-memory.dmp

    Filesize

    92KB

  • memory/2360-18-0x0000000000EA0000-0x0000000000EB7000-memory.dmp

    Filesize

    92KB