Analysis

  • max time kernel
    16s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    19-08-2021 10:05

General

  • Target

    Euro_swift_pdf.exe

  • Size

    247KB

  • MD5

    113dce66c3dbdcd17f9d193c883e983e

  • SHA1

    0c9097e98f090d10597fdcac72f729fb76a219b2

  • SHA256

    b8344e9c1ee03f949c70959828a08e1f73f198d58e6721b95676d54a7e6cb6be

  • SHA512

    f8d95727089ae3f59f0bceca6ad43442cc9eba39d6db7096295b8af49d2ac63888c556445d3ee51b6043276e25eedbefad5e6a727a38dc1aca4455e75ec26c8e

Malware Config

Signatures

  • Detect Neshta Payload 1 IoCs
  • 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 3 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 behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Euro_swift_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Euro_swift_pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2028
    • C:\Users\Admin\AppData\Local\Temp\Euro_swift_pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Euro_swift_pdf.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:1332

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • \PROGRA~2\Google\Temp\GUME011.tmp\GOFB2B~1.EXE

    MD5

    583ff3367e050c4d62bc03516473b40a

    SHA1

    6aa1d26352b78310e711884829c35a69ed1bf0f9

    SHA256

    6b63f8dd47d8b3baa71b6cd205d428861b96bf09cf479071e75ddd23f97c0146

    SHA512

    e9bdd5cc2e29db48cc524488fbadb08e808f17f6e18fa595cfebae229c94f2547079e52a2ada214169577b89b2ffbef424729cd90acdea3774f5c76aec192be0

  • \PROGRA~2\Google\Update\1335~1.452\GOFB2B~1.EXE

    MD5

    583ff3367e050c4d62bc03516473b40a

    SHA1

    6aa1d26352b78310e711884829c35a69ed1bf0f9

    SHA256

    6b63f8dd47d8b3baa71b6cd205d428861b96bf09cf479071e75ddd23f97c0146

    SHA512

    e9bdd5cc2e29db48cc524488fbadb08e808f17f6e18fa595cfebae229c94f2547079e52a2ada214169577b89b2ffbef424729cd90acdea3774f5c76aec192be0

  • memory/1332-61-0x00000000765F1000-0x00000000765F3000-memory.dmp

    Filesize

    8KB

  • memory/1332-60-0x00000000004080E4-mapping.dmp

  • memory/1332-63-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2028-62-0x00000000000F0000-0x00000000000F2000-memory.dmp

    Filesize

    8KB