Analysis

  • max time kernel
    35s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    24-05-2022 03:39

General

  • Target

    1c4352f1951006a2a462a900532af9d2f2a45deb200c03feae5202c975bc36b4.exe

  • Size

    1.5MB

  • MD5

    ccbb3310fa1c3c16526a500a5ee50dee

  • SHA1

    eee28f907444a635f84063c2bc39038c4405cf5e

  • SHA256

    1c4352f1951006a2a462a900532af9d2f2a45deb200c03feae5202c975bc36b4

  • SHA512

    fb5099b1ce172cbcec95303f3ca12b16784debae995d429155af638548b7d2cea3ac8959f6bdd989a37c1c0494f99db1b962a973d04accaf7be955b7ac9acf49

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 7 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1c4352f1951006a2a462a900532af9d2f2a45deb200c03feae5202c975bc36b4.exe
    "C:\Users\Admin\AppData\Local\Temp\1c4352f1951006a2a462a900532af9d2f2a45deb200c03feae5202c975bc36b4.exe"
    1⤵
    • Modifies system executable filetype association
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1940
    • C:\Users\Admin\AppData\Local\Temp\3582-490\1c4352f1951006a2a462a900532af9d2f2a45deb200c03feae5202c975bc36b4.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\1c4352f1951006a2a462a900532af9d2f2a45deb200c03feae5202c975bc36b4.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1556
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1556 -s 536
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:1536

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\1c4352f1951006a2a462a900532af9d2f2a45deb200c03feae5202c975bc36b4.exe
    Filesize

    1.1MB

    MD5

    99c7deaaabd8f0e1e8ef736a293995b2

    SHA1

    1c66939844f8dda93cb3af2c0425f62b88e7fb24

    SHA256

    6ddf4d972efbd9e9f75728c29dbc465cf39b57c5adbc3646318dfb3529fe58cd

    SHA512

    2a8bde488b6cc7d0546147ffff0a68c8210bdc89042f345d85d90bd75837c12ecc358239ab907d573b6ff9291838b4b1016bdec8877f241e7ee56b10bc83efd0

  • C:\Users\Admin\AppData\Local\Temp\3582-490\1c4352f1951006a2a462a900532af9d2f2a45deb200c03feae5202c975bc36b4.exe
    Filesize

    883KB

    MD5

    7216c071f31b82590568311bc8287f34

    SHA1

    6f6a62aa0cc47164f04c4e55da14bc831556b9a8

    SHA256

    a36887c449a82d0f1064fecc20bc3c4bed06de6a6bb86939597368359c60edd1

    SHA512

    2c22eef5c9ee43ca7512076e650c2fc84afac134c81c6998ba357d6e23ca70ba860dc86b0670fde4d202067370c770e8842d41428eebea93d345654db0d95e11

  • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE
    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • \Users\Admin\AppData\Local\Temp\3582-490\1c4352f1951006a2a462a900532af9d2f2a45deb200c03feae5202c975bc36b4.exe
    Filesize

    1.0MB

    MD5

    f212e6f71704d7c1abaff8f5829248fa

    SHA1

    224e31482843ce3b6b5a7873dcb804367c754364

    SHA256

    a538910f03ea09687e33d9e996abbd26601b75722fec5baaf8457daaa3b263e4

    SHA512

    aee98ad17b7e54e5df21878f83868854f82bbbaab8cd2769a08481ad86867c20d9ebe1f4cae51d42f0684b3b09de86ebf70f5e3931bdad04d5accb9e79bcca33

  • \Users\Admin\AppData\Local\Temp\3582-490\1c4352f1951006a2a462a900532af9d2f2a45deb200c03feae5202c975bc36b4.exe
    Filesize

    1.1MB

    MD5

    99cc3a63a4a986af27c2a53123e89f41

    SHA1

    490f50eb895f5515b35593c83018dd665f061e6f

    SHA256

    27970295b2b090018d7c086965254509aa7bf0ffe0ab8c5d14a13962db436668

    SHA512

    6e97a0688313a3ac3d7b6f4bb3b96a9f1c924fc7b5dba488d8ffc9bb5c7690bc712ec70ae90df8aaadb79b72f3b1ea860b37333971bcc7bd64c0a07b01202acd

  • \Users\Admin\AppData\Local\Temp\3582-490\1c4352f1951006a2a462a900532af9d2f2a45deb200c03feae5202c975bc36b4.exe
    Filesize

    864KB

    MD5

    7d4df7d8abdb310bb93403ec73088cfe

    SHA1

    db0779a1d95efe12028bed559b1cce294c469192

    SHA256

    06ecb0a8ec7f63489b591d85cbd702491daf91dfacf8cf9a637c65649e6ed2f2

    SHA512

    9cc8fe6541552c1bf8faf145a4104f9690a604e56bfb0bf2acfaec6d1b9f87035520292b75ed4bfeafb2f986119268ee308db9055b5bc71543676a54aa8554cf

  • \Users\Admin\AppData\Local\Temp\3582-490\1c4352f1951006a2a462a900532af9d2f2a45deb200c03feae5202c975bc36b4.exe
    Filesize

    915KB

    MD5

    375f9632d5068035b2760b15fba78d14

    SHA1

    2c3acdcacad406495f54c79fefd45b453fe3605a

    SHA256

    b9b7d6c33ba7db57bbf824538eff0f5445efeb0e4ba20e55506358cbaff8644d

    SHA512

    e630f5fa154b1b269c418890e035f92d4a1bc3baa478cae9ca8d855df607fc06f8943e8cde54699dc65afdee0a19cb774ec656e31362f93d31f2b47f1e65cbde

  • \Users\Admin\AppData\Local\Temp\3582-490\1c4352f1951006a2a462a900532af9d2f2a45deb200c03feae5202c975bc36b4.exe
    Filesize

    897KB

    MD5

    51a2f6214be41ae680c19ce3f924a05b

    SHA1

    a7a71d1bac325ee7d7243650ff3363a618c3cddf

    SHA256

    e3824024eff471fc937d95d76878967f0e56fec81ad1a3733e260cf4ad70a910

    SHA512

    92e44318f3539c804aa8134301a5daee18186510156607ea14085535c622b52e1a0f60a0ac6fef5961138c84fbc7de34eb4f7d71adb905a6ec10a59d3c147413

  • \Users\Admin\AppData\Local\Temp\3582-490\1c4352f1951006a2a462a900532af9d2f2a45deb200c03feae5202c975bc36b4.exe
    Filesize

    871KB

    MD5

    48fb9cac5f0f81a5ca6f9658b27ff591

    SHA1

    ec01f624a3236e501d5551a1e1cefca9cf9694d9

    SHA256

    bf29d70455bb20336c666baf01b182d1f3cf6a67f084850f903982e0618d7f39

    SHA512

    6ed7a002fdc0853cc341b6b6ea21f31dde8f48bd38fc8654085f9825f311595832f66fcdb6afd241fb9cda8f094a41a8cec522ad362063eec29a00762c05b75e

  • memory/1536-61-0x0000000000000000-mapping.dmp
  • memory/1556-59-0x0000000000DF0000-0x0000000000F72000-memory.dmp
    Filesize

    1.5MB

  • memory/1556-56-0x0000000000000000-mapping.dmp
  • memory/1940-54-0x00000000759F1000-0x00000000759F3000-memory.dmp
    Filesize

    8KB