Analysis

  • max time kernel
    108s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2022 19:45

General

  • Target

    7fb0346eb8ce7d98a79084eeff1ddcd115ecfd1150a26bb52b39989b16267689.exe

  • Size

    1.6MB

  • MD5

    086843be3574888c82076e12756a2d4d

  • SHA1

    39df0a6268554f87b6a0937fec8ad116c0cc70d1

  • SHA256

    7fb0346eb8ce7d98a79084eeff1ddcd115ecfd1150a26bb52b39989b16267689

  • SHA512

    a8e19d6dcc277fec6350f967676798142497f7b44ca1f26296fc50e070f96191848021a912bd073c56a560b55ca963230ee6a50d1efb82fc0ef311b6bf7bd765

  • SSDEEP

    49152:1Vg5tQ7aOcbf5tIs5LkIO3k9dCwh69R3jfm:7g56CbksLkLkrCq6z3jfm

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.

  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of SetThreadContext 1 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.

  • Modifies registry class 1 IoCs
  • Suspicious use of FindShellTrayWindow 18 IoCs
  • Suspicious use of SendNotifyMessage 18 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7fb0346eb8ce7d98a79084eeff1ddcd115ecfd1150a26bb52b39989b16267689.exe
    "C:\Users\Admin\AppData\Local\Temp\7fb0346eb8ce7d98a79084eeff1ddcd115ecfd1150a26bb52b39989b16267689.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1088
    • C:\Users\Admin\AppData\Local\Temp\7fb0346eb8ce7d98a79084eeff1ddcd115ecfd1150a26bb52b39989b16267689.exe
      "C:\Users\Admin\AppData\Local\Temp\7fb0346eb8ce7d98a79084eeff1ddcd115ecfd1150a26bb52b39989b16267689.exe"
      2⤵
      • Modifies system executable filetype association
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Modifies registry class
      PID:112

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • memory/112-61-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/112-64-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/112-58-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/112-59-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/112-60-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/112-55-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/112-62-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/112-56-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/112-65-0x00000000004080E4-mapping.dmp

  • memory/112-66-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/112-68-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/112-69-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/112-70-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/1088-54-0x0000000076681000-0x0000000076683000-memory.dmp

    Filesize

    8KB