Analysis

  • max time kernel
    137s
  • max time network
    141s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    08/08/2024, 04:35

General

  • Target
    Solara/Solar/SolaraBootstrapper.exe
  • Size 149.8MB
  • Sample240808-e7nldszbpm
  • SHA256 e7a36dd328ba20e8695a1d07a25a71edb41f649ee118d9f1c27139fd59fcb35c
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates processes with tasklist 1 TTPs 2 IoCs
  • Drops file in Windows directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 12 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3332
      • C:\Users\Admin\AppData\Local\Temp\Solara\Solar\SolaraBootstrapper.exe
        "C:\Users\Admin\AppData\Local\Temp\Solara\Solar\SolaraBootstrapper.exe"
        2⤵
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1516
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /k move Representations Representations.cmd & Representations.cmd & exit
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3408
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist
            4⤵
            • Enumerates processes with tasklist
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            PID:1572
          • C:\Windows\SysWOW64\findstr.exe
            findstr /I "wrsa.exe opssvc.exe"
            4⤵
            • System Location Discovery: System Language Discovery
            PID:788
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist
            4⤵
            • Enumerates processes with tasklist
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            PID:3292
          • C:\Windows\SysWOW64\findstr.exe
            findstr /I "avastui.exe avgui.exe bdservicehost.exe ekrn.exe nswscsvc.exe sophoshealth.exe"
            4⤵
            • System Location Discovery: System Language Discovery
            PID:888
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c md 691653
            4⤵
            • System Location Discovery: System Language Discovery
            PID:1972
          • C:\Windows\SysWOW64\findstr.exe
            findstr /V "IssuesGriffinChildrenModelling" Animal
            4⤵
            • System Location Discovery: System Language Discovery
            PID:3688
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c copy /b Bolt + Inexpensive + Wellington + Fleet + Telescope + Graphic + Consistent + Dr + Park + Proven 691653\F
            4⤵
            • System Location Discovery: System Language Discovery
            PID:1712
          • C:\Users\Admin\AppData\Local\Temp\691653\Argument.pif
            Argument.pif F
            4⤵
            • Suspicious use of NtCreateUserProcessOtherParentProcess
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of SendNotifyMessage
            • Suspicious use of WriteProcessMemory
            PID:2676
          • C:\Windows\SysWOW64\choice.exe
            choice /d y /t 5
            4⤵
            • System Location Discovery: System Language Discovery
            PID:2772
      • C:\Users\Admin\AppData\Local\Temp\691653\RegAsm.exe
        C:\Users\Admin\AppData\Local\Temp\691653\RegAsm.exe
        2⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2460

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          Argument.pif

          • Path C:\Users\Admin\AppData\Local\Temp\691653\Argument.pif
          • Size 872KB
          • SHA256 237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d
          • MD5 SHA1 SHA512 SSDEEP

          F

          • Path C:\Users\Admin\AppData\Local\Temp\691653\F
          • Size 685KB
          • SHA256 82d13a43681c9e64083c3b818b537bd7471c156fa3462f5378d4023ba7538e38
          • MD5 SHA1 SHA512 SSDEEP

          RegAsm.exe

          • Path C:\Users\Admin\AppData\Local\Temp\691653\RegAsm.exe
          • Size 63KB
          • SHA256 53195987d396986ebcb20425ac130e78ad308fdbd918f33f3fd92b99abda314b
          • MD5 SHA1 SHA512 SSDEEP

          Animal

          • Path C:\Users\Admin\AppData\Local\Temp\Animal
          • Size 692B
          • SHA256 2e439a7e4674589c3e4da070ef4dfe392abf65dac006911ba3aeb54673580abd
          • MD5 SHA1 SHA512

          Bolt

          • Path C:\Users\Admin\AppData\Local\Temp\Bolt
          • Size 70KB
          • SHA256 60049115790147848413a5b6b5046d2dc7ae038b319bed53749cdbc1fdc23cfc
          • MD5 SHA1 SHA512 SSDEEP

          Consistent

          • Path C:\Users\Admin\AppData\Local\Temp\Consistent
          • Size 76KB
          • SHA256 c02e044b9da1e4edecc37c83c06abe69d6d1178a669fca3f4c78b514b0345f70
          • MD5 SHA1 SHA512 SSDEEP

          Dr

          • Path C:\Users\Admin\AppData\Local\Temp\Dr
          • Size 54KB
          • SHA256 15e62fb9ba7fcc3100f3232e9d9122d16c41b82be1b5b659662371bc30ee4190
          • MD5 SHA1 SHA512 SSDEEP

          Fleet

          • Path C:\Users\Admin\AppData\Local\Temp\Fleet
          • Size 60KB
          • SHA256 2553e041e8540db4da38df68258e72b7c9d1bd01d3ba8df82fdf94bdea6f1e57
          • MD5 SHA1 SHA512 SSDEEP

          Graphic

          • Path C:\Users\Admin\AppData\Local\Temp\Graphic
          • Size 71KB
          • SHA256 9a0dbaad05c54a38059217ea7e14952d669d45dac6ccf6baa37be09c70bb728e
          • MD5 SHA1 SHA512 SSDEEP

          Inexpensive

          • Path C:\Users\Admin\AppData\Local\Temp\Inexpensive
          • Size 97KB
          • SHA256 202875f02bd7d4cedf6457ec61db4bf9c32a8ced3cbec4636af8e95163a6b0cc
          • MD5 SHA1 SHA512 SSDEEP

          Park

          • Path C:\Users\Admin\AppData\Local\Temp\Park
          • Size 55KB
          • SHA256 09bfb2fc7ea7858f6041a2397f8163bdbdbdc38a8e985467cbff5f845cfb9cfc
          • MD5 SHA1 SHA512 SSDEEP

          Proven

          • Path C:\Users\Admin\AppData\Local\Temp\Proven
          • Size 38KB
          • SHA256 8cedffe95d1aa7a6921ecdb2fa837285bc4c692f07df8a00c37083c8c8fc0bba
          • MD5 SHA1 SHA512 SSDEEP

          Representations

          • Path C:\Users\Admin\AppData\Local\Temp\Representations
          • Size 29KB
          • SHA256 20ea6fa491b528191f772e4814a7ebc3a665b526b6149f187d9b71cb9ef72b00
          • MD5 SHA1 SHA512 SSDEEP

          Telescope

          • Path C:\Users\Admin\AppData\Local\Temp\Telescope
          • Size 89KB
          • SHA256 4d377450f006468929f4a2c5d9a174816ca42454d2b26f44dc319a80e85a37d3
          • MD5 SHA1 SHA512 SSDEEP

          Viruses

          • Path C:\Users\Admin\AppData\Local\Temp\Viruses
          • Size 872KB
          • SHA256 0019a1fe0412a33f7d8bc05dd100794ec3bea0680d2b27d330f8ffb2805bbadb
          • MD5 SHA1 SHA512 SSDEEP

          Wellington

          • Path C:\Users\Admin\AppData\Local\Temp\Wellington
          • Size 75KB
          • SHA256 ed3554d9146977b097a160d1ead6970b958846aab4c2eb693b6a2a47ee1f3796
          • MD5 SHA1 SHA512 SSDEEP

          memory/2460-43-0x0000000008900000-0x0000000008912000-memory.dmp

          memory/2460-44-0x0000000008960000-0x000000000899C000-memory.dmp

          memory/2460-39-0x0000000005800000-0x0000000005892000-memory.dmp

          memory/2460-40-0x00000000059C0000-0x00000000059CA000-memory.dmp

          memory/2460-41-0x0000000008E80000-0x0000000009498000-memory.dmp

          memory/2460-42-0x00000000089B0000-0x0000000008ABA000-memory.dmp

          memory/2460-35-0x0000000001100000-0x0000000001188000-memory.dmp

          memory/2460-38-0x0000000005E80000-0x0000000006426000-memory.dmp

          memory/2460-45-0x0000000008AC0000-0x0000000008B0C000-memory.dmp

          memory/2460-46-0x0000000009710000-0x0000000009776000-memory.dmp

          memory/2460-47-0x0000000009A40000-0x0000000009AB6000-memory.dmp

          memory/2460-48-0x0000000009A20000-0x0000000009A3E000-memory.dmp

          memory/2460-49-0x000000000A670000-0x000000000A832000-memory.dmp

          memory/2460-50-0x000000000AD70000-0x000000000B29C000-memory.dmp