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Analysis

  • max time kernel
    142s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    05/01/2024, 03:32

General

  • Target

    42a5f085cb986c0b7687afc3b050e168.exe

  • Size

    123KB

  • MD5

    42a5f085cb986c0b7687afc3b050e168

  • SHA1

    7538dcb9489b66b34ac5fe9d537c4bf0b1550700

  • SHA256

    7e85c66482d4209bbf5706d1e1954549cc45ed4133b992abbcf36c27c1a5b9af

  • SHA512

    4e39bb2e7af019788e5ce78d6d9f92ef6e550ad5312ce8a480f0635430e2affed3af886c6b15b6249f687445622dcad9b95d248d3980d9b5b4d3cb5cd5704ef5

  • SSDEEP

    3072:OeSQ41MZrrOwzrq5Ss9eYfphfFQkUcot3EpeBWLLM8M:OVYrJrOSsRwcpY

Score
8/10
upx

Malware Config

Signatures

  • Manipulates Digital Signatures 1 TTPs 2 IoCs

    Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.

  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • UPX packed file 22 IoCs

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

  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 13 IoCs
  • Drops file in Windows directory 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 3 IoCs
  • Modifies registry class 4 IoCs
  • Runs regedit.exe 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\42a5f085cb986c0b7687afc3b050e168.exe
    "C:\Users\Admin\AppData\Local\Temp\42a5f085cb986c0b7687afc3b050e168.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2256
    • C:\Windows\iaccess32.exe
      C:\Windows\iaccess32.exe
      2⤵
      • Manipulates Digital Signatures
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2756
      • C:\Windows\SysWOW64\regedit.exe
        "C:\Windows\System32\regedit.exe" /s C:\Windows\tmlpcert2007
        3⤵
        • Manipulates Digital Signatures
        • Runs regedit.exe
        PID:2788
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32.exe /s "C:\Windows\system32\egaccess4_1071.dll"
        3⤵
        • Loads dropped DLL
        • Modifies registry class
        PID:2708

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Instant Access\Multi\20100712210726\dialerexe.ini

    Filesize

    587B

    MD5

    5a6fa2e12af778d3239158db7a6ecdbe

    SHA1

    c75735bb1a9441558f1948390df57c7915bebca8

    SHA256

    98e1331eb2dd3ed03479c5d8bef8feac5efaa1f55f7cb26c0d21372161e6c397

    SHA512

    a178380f00e63a69cb21f61a9ce5c74d4fd677a503c95970f28ab9b5195ec3753fe5dd67cd0fc462bd45bf8294fabdb0f5581874c3cded76c4f22d0e6ee73656

  • C:\Users\Public\Desktop\NOCREDITCARD.lnk

    Filesize

    2KB

    MD5

    5a54a7616a2b1ed09e6b9261bbbec271

    SHA1

    1eee0f24c70a588d1703873616403682ca9d0490

    SHA256

    8b3a5f651d52cdb774f88a58c065e4483226169ebd5b2a05f2759429ff6c9b86

    SHA512

    a288e64d64ecdf75674fca036a6ee7c472574855e626898aec6fd631ae6f6f91b9b1c5826e916c6065b8fd76591efa4ead95e7798d22403861f293af5561c301

  • C:\Windows\SysWOW64\egaccess4_1071.dll

    Filesize

    76KB

    MD5

    b83f652ffa76451ae438954f89c02f62

    SHA1

    b3ba0014dd16cee5f6d4cfe7e28b2d5de79dc6dd

    SHA256

    f601991aa00cbe7001197affc0e3854ab76c51c05b9a6ca3e3f708fed876c32f

    SHA512

    965172a5ecd070ea6707ec9985ee3c135c06534561b90ae233e8049b247d87d529b8280f0faf2b0ed933f59c68844414726fa80c4d3119cffa4fdd1cb60eab83

  • C:\Windows\iaccess32.exe

    Filesize

    123KB

    MD5

    cd92dc9ce9371640f4db85851f23b073

    SHA1

    2d531e44aeaeb2b3eedc8ea7929644bfd406164b

    SHA256

    bef5ebcf822e6010fb495dfdca8bc0e551ff38e93682750d26f53865148d4032

    SHA512

    c2c134a94c2a45bd9b242230c558c164929a85e1830f4af611687977e48c776d8762a6173cd58d26a9af21321f96e9421f65e419e147d5342f947c5154b33170

  • C:\Windows\tmlpcert2007

    Filesize

    6KB

    MD5

    b103757bc3c714123b5efa26ff96a915

    SHA1

    991d6694c71736b59b9486339be44ae5e2b66fef

    SHA256

    eef8937445f24c2bcbe101419be42694e0e38628653a755ab29ecba357d81d48

    SHA512

    d04f2ab14ad4d3e06ea357b4c810515d73b32f2650533a5895ebf5d14b4b697752f25c0c371372e00faab661c0b051c33b8c25bf1226f30be5d6b8727dea81e1

  • memory/2256-80-0x0000000000370000-0x000000000039E000-memory.dmp

    Filesize

    184KB

  • memory/2256-7-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2256-3-0x0000000000370000-0x000000000039E000-memory.dmp

    Filesize

    184KB

  • memory/2256-0-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2708-83-0x0000000010000000-0x0000000010047000-memory.dmp

    Filesize

    284KB

  • memory/2708-32-0x0000000010000000-0x0000000010047000-memory.dmp

    Filesize

    284KB

  • memory/2756-82-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2756-88-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2756-81-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2756-45-0x0000000003180000-0x0000000003190000-memory.dmp

    Filesize

    64KB

  • memory/2756-9-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2756-84-0x0000000003180000-0x0000000003190000-memory.dmp

    Filesize

    64KB

  • memory/2756-85-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2756-86-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2756-87-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2756-79-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2756-90-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2756-91-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2756-92-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2756-93-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2756-94-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2756-95-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2756-96-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2756-97-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB