Analysis

  • max time kernel
    125s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-08-2023 10:33

General

  • Target

    806d3146bce1861ac480e347406d288b_cryptolocker_JC.exe

  • Size

    87KB

  • MD5

    806d3146bce1861ac480e347406d288b

  • SHA1

    9a07cb56f7e39dc00f1bfb51b9ca6c99bcd9fe2f

  • SHA256

    7b3088125ea9481771648824d5109182445fdacc01a7a3640d561f3a11b19556

  • SHA512

    689988a2f19837bf25ccf18d8283d842b942c3c3460f9bc3f3482c1ba45870123beee1517aa65c87b0cd08aebe3fee26be47db51e5ffb8d277f70f6e3d01d968

  • SSDEEP

    1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDjK:zCsanOtEvwDpjD

Score
7/10
upx

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • UPX packed file 6 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\806d3146bce1861ac480e347406d288b_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\806d3146bce1861ac480e347406d288b_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2852
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:1904

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    88KB

    MD5

    14d7bce7d65973eddef3992fc00307c0

    SHA1

    57fd1cb7e36ba818ec5323c93bf3ddf825805de2

    SHA256

    49e3ad3a1e90623f80167e43e449d3e3d0da518258ed6cb32c2b09153f8ae55e

    SHA512

    ce85948c768f2cc439e03c22f4ad7194d4c4d50a9661accfb975a1df874cf38bcca55243da059ca18eb3b2064911bd83a6bb12ca1819c4f9d2ef45febef99664

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

    Filesize

    88KB

    MD5

    14d7bce7d65973eddef3992fc00307c0

    SHA1

    57fd1cb7e36ba818ec5323c93bf3ddf825805de2

    SHA256

    49e3ad3a1e90623f80167e43e449d3e3d0da518258ed6cb32c2b09153f8ae55e

    SHA512

    ce85948c768f2cc439e03c22f4ad7194d4c4d50a9661accfb975a1df874cf38bcca55243da059ca18eb3b2064911bd83a6bb12ca1819c4f9d2ef45febef99664

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

    Filesize

    88KB

    MD5

    14d7bce7d65973eddef3992fc00307c0

    SHA1

    57fd1cb7e36ba818ec5323c93bf3ddf825805de2

    SHA256

    49e3ad3a1e90623f80167e43e449d3e3d0da518258ed6cb32c2b09153f8ae55e

    SHA512

    ce85948c768f2cc439e03c22f4ad7194d4c4d50a9661accfb975a1df874cf38bcca55243da059ca18eb3b2064911bd83a6bb12ca1819c4f9d2ef45febef99664

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1904-152-0x0000000000760000-0x0000000000766000-memory.dmp

    Filesize

    24KB

  • memory/1904-153-0x0000000000740000-0x0000000000746000-memory.dmp

    Filesize

    24KB

  • memory/1904-181-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2852-133-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2852-134-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/2852-135-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/2852-136-0x0000000002080000-0x0000000002086000-memory.dmp

    Filesize

    24KB

  • memory/2852-150-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB