Analysis

  • max time kernel
    155s
  • max time network
    41s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    24-05-2022 03:17

General

  • Target

    2a06a8fe962bde4303a91b7e97c866e9eeee7b5791447b1f3aa454bc85ca1d0b.exe

  • Size

    1.4MB

  • MD5

    5bea547d481e34579ed99c98c10fe9ca

  • SHA1

    173da3d03c8553976950f99d2d5424cb54bec13a

  • SHA256

    2a06a8fe962bde4303a91b7e97c866e9eeee7b5791447b1f3aa454bc85ca1d0b

  • SHA512

    66576e7e9bd403d111851403981d9fc846e3c28e82e9698909b5acbd2bd12ce4aef1dec8a8bd93380316ad8691e601ce560736d4045581ab19cbeb4646634dd1

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\2a06a8fe962bde4303a91b7e97c866e9eeee7b5791447b1f3aa454bc85ca1d0b.exe
    "C:\Users\Admin\AppData\Local\Temp\2a06a8fe962bde4303a91b7e97c866e9eeee7b5791447b1f3aa454bc85ca1d0b.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:304
    • C:\Users\Admin\AppData\Local\Temp\3582-490\2a06a8fe962bde4303a91b7e97c866e9eeee7b5791447b1f3aa454bc85ca1d0b.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\2a06a8fe962bde4303a91b7e97c866e9eeee7b5791447b1f3aa454bc85ca1d0b.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:948
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 948 -s 656
        3⤵
        • Program crash
        PID:1996

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\2a06a8fe962bde4303a91b7e97c866e9eeee7b5791447b1f3aa454bc85ca1d0b.exe
    Filesize

    1.4MB

    MD5

    febbf9df69ebe3d276a7f36b9a072685

    SHA1

    ab97d8e5149fff7a23ae801da6cfed6e2a3300d3

    SHA256

    8019c6f2d3b9b541097c958b9642ddce07c598abb421cd3675b159a91d486e51

    SHA512

    5cf028bd6d53b2658f84c82b491101cdd248c1850dc89461a5752707ee3c8b3f8a9ef10a948164341bc1c02ad8a0b91880c68f1015d7f3d23c5504e6771b8239

  • C:\Users\Admin\AppData\Local\Temp\3582-490\2a06a8fe962bde4303a91b7e97c866e9eeee7b5791447b1f3aa454bc85ca1d0b.exe
    Filesize

    1.4MB

    MD5

    febbf9df69ebe3d276a7f36b9a072685

    SHA1

    ab97d8e5149fff7a23ae801da6cfed6e2a3300d3

    SHA256

    8019c6f2d3b9b541097c958b9642ddce07c598abb421cd3675b159a91d486e51

    SHA512

    5cf028bd6d53b2658f84c82b491101cdd248c1850dc89461a5752707ee3c8b3f8a9ef10a948164341bc1c02ad8a0b91880c68f1015d7f3d23c5504e6771b8239

  • \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\2a06a8fe962bde4303a91b7e97c866e9eeee7b5791447b1f3aa454bc85ca1d0b.exe
    Filesize

    1.4MB

    MD5

    febbf9df69ebe3d276a7f36b9a072685

    SHA1

    ab97d8e5149fff7a23ae801da6cfed6e2a3300d3

    SHA256

    8019c6f2d3b9b541097c958b9642ddce07c598abb421cd3675b159a91d486e51

    SHA512

    5cf028bd6d53b2658f84c82b491101cdd248c1850dc89461a5752707ee3c8b3f8a9ef10a948164341bc1c02ad8a0b91880c68f1015d7f3d23c5504e6771b8239

  • memory/304-54-0x0000000075DB1000-0x0000000075DB3000-memory.dmp
    Filesize

    8KB

  • memory/948-56-0x0000000000000000-mapping.dmp
  • memory/948-59-0x0000000000B50000-0x0000000000CBA000-memory.dmp
    Filesize

    1.4MB

  • memory/1996-61-0x0000000000000000-mapping.dmp