Resubmissions

29/12/2022, 04:20

221229-eyjk3scc8910

03/12/2022, 20:59

221203-zs4z2sec4510

27/11/2022, 13:32

221127-qszkwsbc35

27/11/2022, 10:11

221127-l798qahd8910

26/11/2022, 11:26

221126-njy7naea9t10

26/11/2022, 11:26

221126-njvjgaea8y10

26/11/2022, 11:25

221126-njsd4sbb9810

26/11/2022, 11:25

221126-njj3qsbb8810

26/11/2022, 11:22

221126-ng1byaea3x10

26/11/2022, 11:17

221126-ndsgxsdg9y10

Analysis

  • max time kernel
    151s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    26/11/2022, 11:25

General

  • Target
    af95f41f73e451c4d1f5fd8acdd0c863.exe
  • Size 1.1MB
  • Sample221126-njsd4sbb98
  • SHA256 2bf85967fb9126459be466a7ecbdbaa32bd1ec69e6cbee24a295852fff807b05
  • MD5 SHA1 SHA512 SSDEEP

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.

  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • XMRig Miner payload 1 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 7 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Loads dropped DLL 5 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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\af95f41f73e451c4d1f5fd8acdd0c863.exe
    "C:\Users\Admin\AppData\Local\Temp\af95f41f73e451c4d1f5fd8acdd0c863.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:940
    • C:\Users\Admin\AppData\Local\Temp\3582-490\af95f41f73e451c4d1f5fd8acdd0c863.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\af95f41f73e451c4d1f5fd8acdd0c863.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1328

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        af95f41f73e451c4d1f5fd8acdd0c863.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3582-490\af95f41f73e451c4d1f5fd8acdd0c863.exe
        • Size 1.1MB
        • SHA256 612aa000654882bbb324a233f7599cb4e1eb6fa74c9c29f8cbcd49f158c0d214
        • MD5 SHA1 SHA512 SSDEEP

        af95f41f73e451c4d1f5fd8acdd0c863.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3582-490\af95f41f73e451c4d1f5fd8acdd0c863.exe
        • Size 1.1MB
        • SHA256 612aa000654882bbb324a233f7599cb4e1eb6fa74c9c29f8cbcd49f158c0d214
        • MD5 SHA1 SHA512 SSDEEP

        LOGTRA~1.EXE

        • Path \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE
        • Size 252KB
        • SHA256 8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043
        • MD5 SHA1 SHA512 SSDEEP

        af95f41f73e451c4d1f5fd8acdd0c863.exe

        • Path \Users\Admin\AppData\Local\Temp\3582-490\af95f41f73e451c4d1f5fd8acdd0c863.exe
        • Size 1.1MB
        • SHA256 612aa000654882bbb324a233f7599cb4e1eb6fa74c9c29f8cbcd49f158c0d214
        • MD5 SHA1 SHA512 SSDEEP

        af95f41f73e451c4d1f5fd8acdd0c863.exe

        • Path \Users\Admin\AppData\Local\Temp\3582-490\af95f41f73e451c4d1f5fd8acdd0c863.exe
        • Size 1.1MB
        • SHA256 612aa000654882bbb324a233f7599cb4e1eb6fa74c9c29f8cbcd49f158c0d214
        • MD5 SHA1 SHA512 SSDEEP

        af95f41f73e451c4d1f5fd8acdd0c863.exe

        • Path \Users\Admin\AppData\Local\Temp\3582-490\af95f41f73e451c4d1f5fd8acdd0c863.exe
        • Size 1.1MB
        • SHA256 612aa000654882bbb324a233f7599cb4e1eb6fa74c9c29f8cbcd49f158c0d214
        • MD5 SHA1 SHA512 SSDEEP

        af95f41f73e451c4d1f5fd8acdd0c863.exe

        • Path \Users\Admin\AppData\Local\Temp\3582-490\af95f41f73e451c4d1f5fd8acdd0c863.exe
        • Size 1.1MB
        • SHA256 612aa000654882bbb324a233f7599cb4e1eb6fa74c9c29f8cbcd49f158c0d214
        • MD5 SHA1 SHA512 SSDEEP

        memory/940-54-0x0000000074DE1000-0x0000000074DE3000-memory.dmp

        memory/940-65-0x0000000002770000-0x0000000002BE1000-memory.dmp

        memory/1328-63-0x0000000000400000-0x0000000000871000-memory.dmp