Analysis

  • max time kernel
    118s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    23-05-2022 23:55

General

  • Target

    78df678b2af8f1d4cf0f8ccc8423398cc2bafac6ad8056f3c4072bd59470c61c.exe

  • Size

    630KB

  • MD5

    dd0ebd1e425cfa550e044cf7af8a2bd6

  • SHA1

    4f1c6d4f967c4b6b37a2631649c0b3226cf2590e

  • SHA256

    78df678b2af8f1d4cf0f8ccc8423398cc2bafac6ad8056f3c4072bd59470c61c

  • SHA512

    cd4424e2c50bb5a453715828af47ba8e40276f5d9284463ce89b637bbd4caaef91df60e356bf94ece1ffed9107468e9e49118f877cd69e62f538208b590e8d6c

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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\78df678b2af8f1d4cf0f8ccc8423398cc2bafac6ad8056f3c4072bd59470c61c.exe
    "C:\Users\Admin\AppData\Local\Temp\78df678b2af8f1d4cf0f8ccc8423398cc2bafac6ad8056f3c4072bd59470c61c.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:2004
    • C:\Users\Admin\AppData\Local\Temp\3582-490\78df678b2af8f1d4cf0f8ccc8423398cc2bafac6ad8056f3c4072bd59470c61c.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\78df678b2af8f1d4cf0f8ccc8423398cc2bafac6ad8056f3c4072bd59470c61c.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:944
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 944 -s 572
        3⤵
        • Program crash
        PID:1364

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\78df678b2af8f1d4cf0f8ccc8423398cc2bafac6ad8056f3c4072bd59470c61c.exe

    Filesize

    589KB

    MD5

    97f09cdc26d5d74cf7f63e4223809f46

    SHA1

    f5a9455cb15886ea112f520bbdd9fb052d840c2d

    SHA256

    8381d7e7c7f0d1bff3d18fcb6b8dfc63d6a8943887e4bc105c8f225513eed832

    SHA512

    d111c1ae9161a63140a6ca2e378f74a173134a5161f2101c18dc879296a4a532e1b97bc5908d0d59bdf01a0c4d55867c65b6bca75cddaa4782456d2beafe785d

  • C:\Users\Admin\AppData\Local\Temp\3582-490\78df678b2af8f1d4cf0f8ccc8423398cc2bafac6ad8056f3c4072bd59470c61c.exe

    Filesize

    589KB

    MD5

    97f09cdc26d5d74cf7f63e4223809f46

    SHA1

    f5a9455cb15886ea112f520bbdd9fb052d840c2d

    SHA256

    8381d7e7c7f0d1bff3d18fcb6b8dfc63d6a8943887e4bc105c8f225513eed832

    SHA512

    d111c1ae9161a63140a6ca2e378f74a173134a5161f2101c18dc879296a4a532e1b97bc5908d0d59bdf01a0c4d55867c65b6bca75cddaa4782456d2beafe785d

  • \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\78df678b2af8f1d4cf0f8ccc8423398cc2bafac6ad8056f3c4072bd59470c61c.exe

    Filesize

    589KB

    MD5

    97f09cdc26d5d74cf7f63e4223809f46

    SHA1

    f5a9455cb15886ea112f520bbdd9fb052d840c2d

    SHA256

    8381d7e7c7f0d1bff3d18fcb6b8dfc63d6a8943887e4bc105c8f225513eed832

    SHA512

    d111c1ae9161a63140a6ca2e378f74a173134a5161f2101c18dc879296a4a532e1b97bc5908d0d59bdf01a0c4d55867c65b6bca75cddaa4782456d2beafe785d

  • memory/944-56-0x0000000000000000-mapping.dmp

  • memory/944-59-0x0000000000C30000-0x0000000000CC8000-memory.dmp

    Filesize

    608KB

  • memory/944-60-0x00000000007D0000-0x000000000088A000-memory.dmp

    Filesize

    744KB

  • memory/1364-62-0x0000000000000000-mapping.dmp

  • memory/2004-54-0x0000000076191000-0x0000000076193000-memory.dmp

    Filesize

    8KB