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Analysis

  • max time kernel
    161s
  • max time network
    168s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/03/2024, 17:21

General

  • Target

    dfb302bfe2528e489185cc87b2227de3.exe

  • Size

    123KB

  • MD5

    dfb302bfe2528e489185cc87b2227de3

  • SHA1

    ff7233ad153e909de680ba4ee447f79b440257db

  • SHA256

    50dd0b8abea5688d7633b40d5722909535101cf816bff9b77a65cbb0764ac80d

  • SHA512

    de75d925831a1fff402d1a60342e9126971ad2adb15ff7dcd2d75a82fc6bf4dd060d7e8210de59873fa71e78e9a69c19a231d789c4f41e157fa0c8242e51edf3

  • SSDEEP

    3072:OeSQ41MZrrOwzrq5Ss9eYfphfFQkUcot3EpeBWLLtK:OVYrJrOSsRwcpLK

Score
8/10
upx

Malware Config

Signatures

  • Manipulates Digital Signatures 1 TTPs 1 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 6 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 4 IoCs
  • Modifies data under HKEY_USERS 1 IoCs
  • Modifies registry class 4 IoCs
  • Runs regedit.exe 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dfb302bfe2528e489185cc87b2227de3.exe
    "C:\Users\Admin\AppData\Local\Temp\dfb302bfe2528e489185cc87b2227de3.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3544
    • C:\Windows\iaccess32.exe
      C:\Windows\iaccess32.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies data under HKEY_USERS
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4620
      • C:\Windows\SysWOW64\regedit.exe
        "C:\Windows\System32\regedit.exe" /s C:\Windows\tmlpcert2007
        3⤵
        • Manipulates Digital Signatures
        • Runs regedit.exe
        PID:1476
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32.exe /s "C:\Windows\system32\egaccess4_1071.dll"
        3⤵
        • Loads dropped DLL
        • Modifies registry class
        PID:4876
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p -s TapiSrv
    1⤵
      PID:4928

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\NOCREDITCARD.lnk

      Filesize

      2KB

      MD5

      237ae9e26545d0a7f130cc7c756fe82d

      SHA1

      5548197cbe4ae6d9056230e4a59dd916c026bb1f

      SHA256

      eb6bce9c84a926f5f4881a581eb7fc2568b8e183ea5cc85e808c8f9324a6c5e1

      SHA512

      b3438292945836878e7feefcaf8b423f83dd7d4172e09e53fa7a86308112679ed105c04e0a90100ae33c0a69ccbfdbf05d0323cf629c7304b30929ba4aceae61

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

      Filesize

      2KB

      MD5

      c3746d5e60dd9c93e833a2a234ac2b75

      SHA1

      6899e680929e7b0a8d2bc591b184f19b390be0c9

      SHA256

      3786d48bbafedef6c31d23c229f05352a801ce253c6a99b74e47b0534a333a26

      SHA512

      ed480ee779a5116549c892bffa465ac55ff0e463e41833aff85340b84c5326c3c9360d0a51f27de647e822938aad0f7362b13d4bfc540f7d61daed5732d82d70

    • C:\Windows\SysWOW64\egaccess4_1071.dll

      Filesize

      76KB

      MD5

      b83f652ffa76451ae438954f89c02f62

      SHA1

      b3ba0014dd16cee5f6d4cfe7e28b2d5de79dc6dd

      SHA256

      f601991aa00cbe7001197affc0e3854ab76c51c05b9a6ca3e3f708fed876c32f

      SHA512

      965172a5ecd070ea6707ec9985ee3c135c06534561b90ae233e8049b247d87d529b8280f0faf2b0ed933f59c68844414726fa80c4d3119cffa4fdd1cb60eab83

    • C:\Windows\dialerexe.ini

      Filesize

      587B

      MD5

      92fc8e9fba327cdca54390ada5742ec8

      SHA1

      18e2dce596c32419e094c67ec4279a2b98d8fc69

      SHA256

      2cc87510c8b99bc6ee815b8e721c99503b813e8976eab53f48160f7c04664d2a

      SHA512

      ce193bfa8102bc8f695edf7053799c2f1acca1f16658d9c91cacf7622e1041ea9f7ecf51abdbc0a4e36ee96e04edd96081d5cc0efda5a2070a3c806e7094eb2b

    • C:\Windows\iaccess32.exe

      Filesize

      123KB

      MD5

      e4ac874839b0cd83022fff3a714fa645

      SHA1

      324c680fb411734e1a059007f509134057dbfcdc

      SHA256

      cdd1ff98f0c6a12bf8cec67b59443fdb90f1f93e0ffc271888b663c1f62cc844

      SHA512

      87901dce853e5807f1197f369d0eb35e8248ee05f547ef9db9b48469491e3463f0c6707e5f9d1cf9680494faf7741cfd295a9922da0d497e6aebe057d2a98892

    • C:\Windows\tmlpcert2007

      Filesize

      6KB

      MD5

      b103757bc3c714123b5efa26ff96a915

      SHA1

      991d6694c71736b59b9486339be44ae5e2b66fef

      SHA256

      eef8937445f24c2bcbe101419be42694e0e38628653a755ab29ecba357d81d48

      SHA512

      d04f2ab14ad4d3e06ea357b4c810515d73b32f2650533a5895ebf5d14b4b697752f25c0c371372e00faab661c0b051c33b8c25bf1226f30be5d6b8727dea81e1

    • memory/3544-0-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/3544-5-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/4620-4-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/4620-58-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/4876-28-0x0000000010000000-0x0000000010047000-memory.dmp

      Filesize

      284KB