Analysis

  • max time kernel
    120s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    17-02-2022 23:39

General

  • Target

    stangs.exe

  • Size

    3.3MB

  • MD5

    aef3dd554664f1c82a56a2e2775fa6d4

  • SHA1

    8456da14bc786bf6ee3fc6ff4ec17665189ea556

  • SHA256

    0ef273d54fe7d444cdcd783faa40bba94bad7a85d58ffd94724a5bb6813f0247

  • SHA512

    511d5bd264a4808342e1d350f1d731399f11d5da89009820601eb9174ac69b44768b333b08fbab8dc552652ba66b51348eee64023198087d5eeea4e18a5f76e3

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Executes dropped EXE 1 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Drops startup file 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Themida packer 10 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\stangs.exe
    "C:\Users\Admin\AppData\Local\Temp\stangs.exe"
    1⤵
    • Checks BIOS information in registry
    • Drops startup file
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of WriteProcessMemory
    PID:1668
    • C:\Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe
      "C:\Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe"
      2⤵
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: AddClipboardFormatListener
      PID:1176

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe

    MD5

    aef3dd554664f1c82a56a2e2775fa6d4

    SHA1

    8456da14bc786bf6ee3fc6ff4ec17665189ea556

    SHA256

    0ef273d54fe7d444cdcd783faa40bba94bad7a85d58ffd94724a5bb6813f0247

    SHA512

    511d5bd264a4808342e1d350f1d731399f11d5da89009820601eb9174ac69b44768b333b08fbab8dc552652ba66b51348eee64023198087d5eeea4e18a5f76e3

  • \Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe

    MD5

    aef3dd554664f1c82a56a2e2775fa6d4

    SHA1

    8456da14bc786bf6ee3fc6ff4ec17665189ea556

    SHA256

    0ef273d54fe7d444cdcd783faa40bba94bad7a85d58ffd94724a5bb6813f0247

    SHA512

    511d5bd264a4808342e1d350f1d731399f11d5da89009820601eb9174ac69b44768b333b08fbab8dc552652ba66b51348eee64023198087d5eeea4e18a5f76e3

  • \Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe

    MD5

    aef3dd554664f1c82a56a2e2775fa6d4

    SHA1

    8456da14bc786bf6ee3fc6ff4ec17665189ea556

    SHA256

    0ef273d54fe7d444cdcd783faa40bba94bad7a85d58ffd94724a5bb6813f0247

    SHA512

    511d5bd264a4808342e1d350f1d731399f11d5da89009820601eb9174ac69b44768b333b08fbab8dc552652ba66b51348eee64023198087d5eeea4e18a5f76e3

  • \Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe

    MD5

    aef3dd554664f1c82a56a2e2775fa6d4

    SHA1

    8456da14bc786bf6ee3fc6ff4ec17665189ea556

    SHA256

    0ef273d54fe7d444cdcd783faa40bba94bad7a85d58ffd94724a5bb6813f0247

    SHA512

    511d5bd264a4808342e1d350f1d731399f11d5da89009820601eb9174ac69b44768b333b08fbab8dc552652ba66b51348eee64023198087d5eeea4e18a5f76e3

  • memory/1176-64-0x000000013F760000-0x000000014006A000-memory.dmp

    Filesize

    9.0MB

  • memory/1176-65-0x000000013F760000-0x000000014006A000-memory.dmp

    Filesize

    9.0MB

  • memory/1176-66-0x000000013F760000-0x000000014006A000-memory.dmp

    Filesize

    9.0MB

  • memory/1668-55-0x0000000077AD0000-0x0000000077AD2000-memory.dmp

    Filesize

    8KB

  • memory/1668-56-0x000000013F8C0000-0x00000001401CA000-memory.dmp

    Filesize

    9.0MB

  • memory/1668-57-0x000000013F8C0000-0x00000001401CA000-memory.dmp

    Filesize

    9.0MB

  • memory/1668-58-0x000000013F8C0000-0x00000001401CA000-memory.dmp

    Filesize

    9.0MB

  • memory/1668-59-0x000007FEFC4A1000-0x000007FEFC4A3000-memory.dmp

    Filesize

    8KB