Analysis

  • max time kernel
    131s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/03/2024, 04:21

General

  • Target
    SecuriteInfo.com.Heur.22743.1556.exe
  • Size 748KB
  • Sample240325-eynj2aga26
  • SHA256 425f76eb82d3accf2865ff9f455a49675c2ca3f273ade57fd865c8fec5163f1e
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detect Neshta payload 5 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Modifies system executable filetype association 2 TTPs 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).

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Heur.22743.1556.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Heur.22743.1556.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4324
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Heur.22743.1556.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Heur.22743.1556.exe"
      2⤵
        PID:1604
      • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Heur.22743.1556.exe
        "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Heur.22743.1556.exe"
        2⤵
        • Checks computer location settings
        • Modifies system executable filetype association
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Modifies registry class
        PID:3452

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          AcroRd32.exe

          • Path C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe
          • Size 2.4MB
          • SHA256 63847998baf8bd563140a51772cc2301cb1c4cc77b8cf6599095efb29d6ed3e5
          • MD5 SHA1 SHA512 SSDEEP

          SecuriteInfo.com.Heur.22743.1556.exe

          • Path C:\Users\Admin\AppData\Local\Temp\3582-490\SecuriteInfo.com.Heur.22743.1556.exe
          • Size 707KB
          • SHA256 16c5e3b2ebbb4de515bb20baeced17d04513eaf14c0bb1638f897247625df698
          • MD5 SHA1 SHA512 SSDEEP

          memory/3452-10-0x0000000000400000-0x000000000041B000-memory.dmp

          memory/3452-113-0x0000000000400000-0x000000000041B000-memory.dmp

          memory/3452-15-0x0000000000400000-0x000000000041B000-memory.dmp

          memory/3452-13-0x0000000000400000-0x000000000041B000-memory.dmp

          memory/3452-11-0x0000000000400000-0x000000000041B000-memory.dmp

          memory/4324-4-0x00000000059B0000-0x00000000059C0000-memory.dmp

          memory/4324-8-0x0000000005A50000-0x0000000005A5C000-memory.dmp

          memory/4324-9-0x0000000006D80000-0x0000000006E0C000-memory.dmp

          memory/4324-7-0x00000000059A0000-0x00000000059B2000-memory.dmp

          memory/4324-6-0x0000000005A60000-0x0000000005AFC000-memory.dmp

          memory/4324-5-0x0000000005720000-0x000000000572A000-memory.dmp

          memory/4324-0-0x0000000000C90000-0x0000000000D50000-memory.dmp

          memory/4324-16-0x0000000074580000-0x0000000074D30000-memory.dmp

          memory/4324-3-0x0000000005740000-0x00000000057D2000-memory.dmp

          memory/4324-2-0x0000000005CF0000-0x0000000006294000-memory.dmp

          memory/4324-1-0x0000000074580000-0x0000000074D30000-memory.dmp