Analysis

  • max time kernel
    43s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    21-11-2022 04:54

General

  • Target

    d12f1a3ff9ae33b493e9631f998535aa7a7517b058ec0ea7205ec6388844fc97.exe

  • Size

    516KB

  • MD5

    22749761f0857949ba098b99470010c9

  • SHA1

    e01926acc8579bef20883fcbde8a6d7bf16c187b

  • SHA256

    d12f1a3ff9ae33b493e9631f998535aa7a7517b058ec0ea7205ec6388844fc97

  • SHA512

    8c82beae0f547478fa5863e2474858770850e4865a5041e754a14efe08f258753e299af832d057975c1dbdbf7c5c15d16d67b9aebeb0190f7e7e65fd32aff09a

  • SSDEEP

    12288:9s/DzxUKJXS6X+BeOi5+McJQjXgXxJX29yqtNYvHWFcVHGfV:qD1DyehI9Qjep28qEWFSUV

Malware Config

Signatures

  • Detect Neshta payload 16 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.

  • 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d12f1a3ff9ae33b493e9631f998535aa7a7517b058ec0ea7205ec6388844fc97.exe
    "C:\Users\Admin\AppData\Local\Temp\d12f1a3ff9ae33b493e9631f998535aa7a7517b058ec0ea7205ec6388844fc97.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2000
    • C:\Users\Admin\AppData\Local\Temp\d12f1a3ff9ae33b493e9631f998535aa7a7517b058ec0ea7205ec6388844fc97.exe
      C:\Users\Admin\AppData\Local\Temp\d12f1a3ff9ae33b493e9631f998535aa7a7517b058ec0ea7205ec6388844fc97.exe
      2⤵
      • Modifies system executable filetype association
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Modifies registry class
      PID:1400

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Change Default File Association

1
T1042

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1400-68-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/1400-77-0x0000000000020000-0x0000000000040000-memory.dmp
    Filesize

    128KB

  • memory/1400-70-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/1400-57-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/1400-62-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/1400-81-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/1400-64-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/1400-66-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/1400-58-0x00000000004080E4-mapping.dmp
  • memory/1400-82-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/1400-74-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/1400-72-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/1400-76-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/1400-59-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/1400-78-0x0000000000020000-0x0000000000040000-memory.dmp
    Filesize

    128KB

  • memory/1400-79-0x0000000000020000-0x0000000000040000-memory.dmp
    Filesize

    128KB

  • memory/1400-80-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/2000-61-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/2000-54-0x0000000074F01000-0x0000000074F03000-memory.dmp
    Filesize

    8KB