Analysis

  • max time kernel
    149s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    20-11-2022 11:51

General

  • Target

    40521a0b3d2354de2333822e7130a243eed0b1a0b60c55730571b84a5d3ad61c.exe

  • Size

    720KB

  • MD5

    497d0f9a206302613958832907c63cb0

  • SHA1

    c51b1aa28b969bf1ac8318fa9f5b99831548d985

  • SHA256

    40521a0b3d2354de2333822e7130a243eed0b1a0b60c55730571b84a5d3ad61c

  • SHA512

    b267f9ecf133fbb93bebc3adbf2fe12abc7b7d6638e9a268dac24b8262b09eeed318f47d347cdad17fccaeefd4646d78b39e384a0d5781cec951078371b5e42d

  • SSDEEP

    12288:cvksLWtSNrPi37NzHDA6Y1gbl5d7Ifoz4mrNNpRpzqjxyR5:cvksLWtkrPi37NzHDA6Yg5dsfoTzsxyv

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 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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.

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\40521a0b3d2354de2333822e7130a243eed0b1a0b60c55730571b84a5d3ad61c.exe
    "C:\Users\Admin\AppData\Local\Temp\40521a0b3d2354de2333822e7130a243eed0b1a0b60c55730571b84a5d3ad61c.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:940
    • C:\Users\Admin\AppData\Local\Temp\3582-490\40521a0b3d2354de2333822e7130a243eed0b1a0b60c55730571b84a5d3ad61c.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\40521a0b3d2354de2333822e7130a243eed0b1a0b60c55730571b84a5d3ad61c.exe"
      2⤵
      • Executes dropped EXE
      PID:2036

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\40521a0b3d2354de2333822e7130a243eed0b1a0b60c55730571b84a5d3ad61c.exe

    Filesize

    679KB

    MD5

    da6cbb935bea3b3298eba6873eb33f62

    SHA1

    427e1a118c119727b54376bd20255b2adcc3ad8b

    SHA256

    10a581089a59c45a1a855ef33a0d1f85268c87dfbd2cd02f53ea53e69b35cad2

    SHA512

    caae400ed68dac1d3e97594a57eb4999a5b330a1f100d7c57174f998b9f535839965629307e77bc3802b9515e36a0b13f8a2f0a3420547bfb26b93161dda241d

  • C:\Users\Admin\AppData\Local\Temp\3582-490\40521a0b3d2354de2333822e7130a243eed0b1a0b60c55730571b84a5d3ad61c.exe

    Filesize

    679KB

    MD5

    da6cbb935bea3b3298eba6873eb33f62

    SHA1

    427e1a118c119727b54376bd20255b2adcc3ad8b

    SHA256

    10a581089a59c45a1a855ef33a0d1f85268c87dfbd2cd02f53ea53e69b35cad2

    SHA512

    caae400ed68dac1d3e97594a57eb4999a5b330a1f100d7c57174f998b9f535839965629307e77bc3802b9515e36a0b13f8a2f0a3420547bfb26b93161dda241d

  • \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\40521a0b3d2354de2333822e7130a243eed0b1a0b60c55730571b84a5d3ad61c.exe

    Filesize

    679KB

    MD5

    da6cbb935bea3b3298eba6873eb33f62

    SHA1

    427e1a118c119727b54376bd20255b2adcc3ad8b

    SHA256

    10a581089a59c45a1a855ef33a0d1f85268c87dfbd2cd02f53ea53e69b35cad2

    SHA512

    caae400ed68dac1d3e97594a57eb4999a5b330a1f100d7c57174f998b9f535839965629307e77bc3802b9515e36a0b13f8a2f0a3420547bfb26b93161dda241d

  • memory/940-54-0x0000000076941000-0x0000000076943000-memory.dmp

    Filesize

    8KB

  • memory/2036-56-0x0000000000000000-mapping.dmp