Overview

overview

10

Static

static

3

rr.exe

windows7-x64

10

rr.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    134s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/05/2024, 11:59

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General

  • Target
    rr.exe
  • Size 5.2MB
  • Sample240506-n5rdyaeb77
  • SHA256 857b9f26409402199916903c1ca9415337ae1e8d415b8f1e588a75036375789c
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
netsupportrat

Malware Config

Signatures

  • NetSupport

    NetSupport is a remote access tool sold as a legitimate system administration software.

    ratnetsupport
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\rr.exe
    "C:\Users\Admin\AppData\Local\Temp\rr.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:5028
    • C:\Users\Admin\AppData\Roaming\star.exe
      "C:\Users\Admin\AppData\Roaming\star.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:1584

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        HTCTL32.DLL
        • Path C:\Users\Admin\AppData\Roaming\HTCTL32.DLL
        • Size 320KB
        • SHA256 edfe2b923bfb5d1088de1611401f5c35ece91581e71503a5631647ac51f7d796
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        NSM.LIC
        • Path C:\Users\Admin\AppData\Roaming\NSM.LIC
        • Size 258B
        • SHA256 432e7638a9d18866a6bac6968ef5aef0da3719cb44dd39b741bfecd5dc9ed7ff
        • MD5 SHA1 SHA512
        Submit Download

        PCICL32.dll
        • Path C:\Users\Admin\AppData\Roaming\PCICL32.dll
        • Size 3.6MB
        • SHA256 63aa18c32af7144156e7ee2d5ba0fa4f5872a7deb56894f6f96505cbc9afe6f8
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        client32.ini
        • Path C:\Users\Admin\AppData\Roaming\client32.ini
        • Size 916B
        • SHA256 bfe89b49f3edd46a452da26039d45618316ef61d24a5b18308616e1a0dedfe98
        • MD5 SHA1 SHA512
        Submit Download

        msvcr100.dll
        • Path C:\Users\Admin\AppData\Roaming\msvcr100.dll
        • Size 755KB
        • SHA256 8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        pcicapi.dll
        • Path C:\Users\Admin\AppData\Roaming\pcicapi.dll
        • Size 32KB
        • SHA256 9074fd40ea6a0caa892e6361a6a4e834c2e51e6e98d1ffcda7a9a537594a6917
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        pcichek.dll
        • Path C:\Users\Admin\AppData\Roaming\pcichek.dll
        • Size 18KB
        • SHA256 313117e723dda6ea3911faacd23f4405003fb651c73de8deff10b9eb5b4a058a
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        star.exe
        • Path C:\Users\Admin\AppData\Roaming\star.exe
        • Size 103KB
        • SHA256 49a568f8ac11173e3a0d76cff6bc1d4b9bdf2c35c6d8570177422f142dcfdbe3
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download