Analysis

  • max time kernel
    4s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    24-05-2022 00:57

General

  • Target

    7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe

  • Size

    337KB

  • MD5

    568be84c39c75c4a28ee54a13ceefdf0

  • SHA1

    f6ba126a47da320de1a4c132c4e84fffbd68b73f

  • SHA256

    7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8

  • SHA512

    18937b8913c4919152b4d4ecf2d6dfaf1a6cca88a488786bba0f68c84a0f13786b5a9e3e101c9414181194ad281a6b3056f617f66c5117f94cd720765cd9a741

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 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe
    "C:\Users\Admin\AppData\Local\Temp\7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.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:1216
    • C:\Users\Admin\AppData\Local\Temp\3582-490\7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1756
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 1756 -s 540
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:2036

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe

    Filesize

    296KB

    MD5

    a4e003f658d6fa9f98384a61798361fa

    SHA1

    79ab5e9674d770ebe0c83d50ce2a9e0bead5f448

    SHA256

    14b67ef494f13acee87b465b33e66c343f4edd3cd3f58475c28bd8d92eaca7ad

    SHA512

    2b95d09b3f00f0669fb1d41976319ba65074b9148d067563ae07cb9c4cc4b55107a5c574bd0d5304df9ebbafe8b4950f7c337be7a663ed17caa8f90dfaf7e65c

  • C:\Users\Admin\AppData\Local\Temp\3582-490\7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe

    Filesize

    296KB

    MD5

    a4e003f658d6fa9f98384a61798361fa

    SHA1

    79ab5e9674d770ebe0c83d50ce2a9e0bead5f448

    SHA256

    14b67ef494f13acee87b465b33e66c343f4edd3cd3f58475c28bd8d92eaca7ad

    SHA512

    2b95d09b3f00f0669fb1d41976319ba65074b9148d067563ae07cb9c4cc4b55107a5c574bd0d5304df9ebbafe8b4950f7c337be7a663ed17caa8f90dfaf7e65c

  • \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\7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe

    Filesize

    296KB

    MD5

    a4e003f658d6fa9f98384a61798361fa

    SHA1

    79ab5e9674d770ebe0c83d50ce2a9e0bead5f448

    SHA256

    14b67ef494f13acee87b465b33e66c343f4edd3cd3f58475c28bd8d92eaca7ad

    SHA512

    2b95d09b3f00f0669fb1d41976319ba65074b9148d067563ae07cb9c4cc4b55107a5c574bd0d5304df9ebbafe8b4950f7c337be7a663ed17caa8f90dfaf7e65c

  • \Users\Admin\AppData\Local\Temp\3582-490\7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe

    Filesize

    296KB

    MD5

    a4e003f658d6fa9f98384a61798361fa

    SHA1

    79ab5e9674d770ebe0c83d50ce2a9e0bead5f448

    SHA256

    14b67ef494f13acee87b465b33e66c343f4edd3cd3f58475c28bd8d92eaca7ad

    SHA512

    2b95d09b3f00f0669fb1d41976319ba65074b9148d067563ae07cb9c4cc4b55107a5c574bd0d5304df9ebbafe8b4950f7c337be7a663ed17caa8f90dfaf7e65c

  • \Users\Admin\AppData\Local\Temp\3582-490\7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe

    Filesize

    296KB

    MD5

    a4e003f658d6fa9f98384a61798361fa

    SHA1

    79ab5e9674d770ebe0c83d50ce2a9e0bead5f448

    SHA256

    14b67ef494f13acee87b465b33e66c343f4edd3cd3f58475c28bd8d92eaca7ad

    SHA512

    2b95d09b3f00f0669fb1d41976319ba65074b9148d067563ae07cb9c4cc4b55107a5c574bd0d5304df9ebbafe8b4950f7c337be7a663ed17caa8f90dfaf7e65c

  • \Users\Admin\AppData\Local\Temp\3582-490\7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe

    Filesize

    296KB

    MD5

    a4e003f658d6fa9f98384a61798361fa

    SHA1

    79ab5e9674d770ebe0c83d50ce2a9e0bead5f448

    SHA256

    14b67ef494f13acee87b465b33e66c343f4edd3cd3f58475c28bd8d92eaca7ad

    SHA512

    2b95d09b3f00f0669fb1d41976319ba65074b9148d067563ae07cb9c4cc4b55107a5c574bd0d5304df9ebbafe8b4950f7c337be7a663ed17caa8f90dfaf7e65c

  • \Users\Admin\AppData\Local\Temp\3582-490\7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe

    Filesize

    296KB

    MD5

    a4e003f658d6fa9f98384a61798361fa

    SHA1

    79ab5e9674d770ebe0c83d50ce2a9e0bead5f448

    SHA256

    14b67ef494f13acee87b465b33e66c343f4edd3cd3f58475c28bd8d92eaca7ad

    SHA512

    2b95d09b3f00f0669fb1d41976319ba65074b9148d067563ae07cb9c4cc4b55107a5c574bd0d5304df9ebbafe8b4950f7c337be7a663ed17caa8f90dfaf7e65c

  • \Users\Admin\AppData\Local\Temp\3582-490\7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe

    Filesize

    296KB

    MD5

    a4e003f658d6fa9f98384a61798361fa

    SHA1

    79ab5e9674d770ebe0c83d50ce2a9e0bead5f448

    SHA256

    14b67ef494f13acee87b465b33e66c343f4edd3cd3f58475c28bd8d92eaca7ad

    SHA512

    2b95d09b3f00f0669fb1d41976319ba65074b9148d067563ae07cb9c4cc4b55107a5c574bd0d5304df9ebbafe8b4950f7c337be7a663ed17caa8f90dfaf7e65c

  • memory/1216-54-0x0000000075951000-0x0000000075953000-memory.dmp

    Filesize

    8KB

  • memory/1756-59-0x000000013F470000-0x000000013F4BE000-memory.dmp

    Filesize

    312KB

  • memory/1756-56-0x0000000000000000-mapping.dmp

  • memory/2036-60-0x0000000000000000-mapping.dmp