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Overview

overview

10

Static

static

10

b1a55c281d...a6.exe

windows7-x64

10

b1a55c281d...a6.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/06/2024, 02:49

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General

  • Target

    b1a55c281d7222c9254e5cfbb6db241bf1c38189a5fff10faa323f39518063a6.exe

  • Size

    2.5MB

  • MD5

    696cd93127a61b0aaa93d5c45d2ca6f5

  • SHA1

    b5434473eed20cbd7611a4de443e6d724c63a3be

  • SHA256

    b1a55c281d7222c9254e5cfbb6db241bf1c38189a5fff10faa323f39518063a6

  • SHA512

    1609e0e835eae923416f491565e5e370cbe95a2de68df5ec4ace48010ae9766e2c53f1f8ffa3fcab2256abd4e25bb4e2150a1a1312bf964bce89c089d714cf75

  • SSDEEP

    49152:MxmvumkQ9lY9sgUXdTPSxdQ8KX75IyuWuCjcCqWOyxn:Mxx9NUFkQx753uWuCyyxn

Score
10/10
evasionpersistencethemidatrojan

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
    evasion
  • Detects executables packed with Themida 18 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 5 IoCs
    evasion
  • Checks BIOS information in registry 2 TTPs 10 IoCs

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

  • Executes dropped EXE 4 IoCs
  • Themida packer 18 IoCs

    Detects Themida, an advanced Windows software protection system.

    themida
  • Adds Run key to start application 2 TTPs 4 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 5 IoCs
    evasiontrojan
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
  • Drops file in Windows directory 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b1a55c281d7222c9254e5cfbb6db241bf1c38189a5fff10faa323f39518063a6.exe
    "C:\Users\Admin\AppData\Local\Temp\b1a55c281d7222c9254e5cfbb6db241bf1c38189a5fff10faa323f39518063a6.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1340
    • \??\c:\windows\resources\themes\explorer.exe
      c:\windows\resources\themes\explorer.exe
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4308
      • \??\c:\windows\resources\spoolsv.exe
        c:\windows\resources\spoolsv.exe SE
        3⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Checks whether UAC is enabled
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Drops file in Windows directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:796
        • \??\c:\windows\resources\svchost.exe
          c:\windows\resources\svchost.exe
          4⤵
          • Modifies visiblity of hidden/system files in Explorer
          • Identifies VirtualBox via ACPI registry values (likely anti-VM)
          • Checks BIOS information in registry
          • Executes dropped EXE
          • Adds Run key to start application
          • Checks whether UAC is enabled
          • Drops file in System32 directory
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2688
          • \??\c:\windows\resources\spoolsv.exe
            c:\windows\resources\spoolsv.exe PR
            5⤵
            • Identifies VirtualBox via ACPI registry values (likely anti-VM)
            • Checks BIOS information in registry
            • Executes dropped EXE
            • Checks whether UAC is enabled
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • Suspicious use of SetWindowsHookEx
            PID:696

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\Resources\Themes\explorer.exe
    Filesize

    2.5MB

    MD5

    4e89ee3b9837d2952cce13a817f49ea7

    SHA1

    36711ba996a06fb5b8a8478b7c1401f9828f1d47

    SHA256

    84a4849ec7116e602734fdb983778fa487203bae18b3b47c0bbbcf835962796c

    SHA512

    8c999002b6b1f308bdca12cc990080c781345c3849c31371798b92581e8f272b1d5ef98a8c8f4e2374a9c28c35960277a04dea9b520494bd4ec8d88e4c73ae87

    Download Submit

  • C:\Windows\Resources\spoolsv.exe
    Filesize

    2.5MB

    MD5

    3b3b2a475df8a63d3bcf295a14c97277

    SHA1

    c59d11eff430d3f7468ddfd0b55dcde56cb68ff7

    SHA256

    30c56bc39d95bf8a0e3dc7d8af1f8f9fcd8c54cc23b08a2762a3bfc71717ee61

    SHA512

    0a033d04986961f389f33b1dac72ed056b55255e25825db0c78bc1de4088a25331824792fffed3f8c5ee2d7cda5884ffd4af41658733fd684865e542cf3766b9

    Download Submit

  • C:\Windows\Resources\svchost.exe
    Filesize

    2.5MB

    MD5

    4434e485c9ae8e8e1f92be609df63c2a

    SHA1

    e1cf16bbc75283d4581100c8665418a287a29f4f

    SHA256

    a25bceecfb46da109ea5ae05b449fe58e3b5d8ec65cc6221fc34202e04c57a63

    SHA512

    7dd41bda94d0d7b7d9adeb0a6b41af6197f362673b4a0f393b3309253c8b77dc720ad641a615dcb394d948cac214a12c5a036b27442e0853fb55e3ccce44f1d2

    Download Submit

  • memory/696-33-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB

    Download

  • memory/696-37-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB

    Download

  • memory/796-39-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB

    Download

  • memory/796-19-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB

    Download

  • memory/1340-1-0x0000000077E14000-0x0000000077E16000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1340-41-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB

    Download

  • memory/1340-0-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB

    Download

  • memory/2688-28-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB

    Download

  • memory/2688-43-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB

    Download

  • memory/2688-48-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB

    Download

  • memory/4308-10-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB

    Download

  • memory/4308-42-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB

    Download

  • memory/4308-44-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB

    Download

  • memory/4308-53-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB

    Download

  • memory/4308-61-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB

    Download

  • memory/4308-63-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB

    Download