Analysis

  • max time kernel
    129s
  • max time network
    176s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    16-05-2022 05:17

General

  • Target

    e6967a3e28cc938341c5ca21332c84ec700e33ae632cd0c08dc6bbf16b212f28.exe

  • Size

    361KB

  • MD5

    e2eb762d6d248fec5b8af8ab437cfdc2

  • SHA1

    c6be1c85d65136e6ce2cc098db499837d2c5ea9e

  • SHA256

    e6967a3e28cc938341c5ca21332c84ec700e33ae632cd0c08dc6bbf16b212f28

  • SHA512

    0c85ede00a5ae7d0fe5aabfb9b662c6329922e6278bc80b59384234891a1383fe53d7931b9ca7d52ac95a355cd10840a4886a268238e347077d91fb0ba7d3a33

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs
  • Executes dropped EXE 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs
  • Checks BIOS information in registry 2 TTPs 1 IoCs

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

  • Identifies Wine through registry keys 2 TTPs 2 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e6967a3e28cc938341c5ca21332c84ec700e33ae632cd0c08dc6bbf16b212f28.exe
    "C:\Users\Admin\AppData\Local\Temp\e6967a3e28cc938341c5ca21332c84ec700e33ae632cd0c08dc6bbf16b212f28.exe"
    1⤵
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4124
    • C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\DC\Security\UnprotectRequest.exe
      "C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\DC\Security\UnprotectRequest.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1892
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\SysWOW64\svchost.exe -k netsvcs
        3⤵
          PID:984
        • C:\Windows\SysWOW64\svchost.exe
          C:\Windows\SysWOW64\svchost.exe -k netsvcs
          3⤵
            PID:2316
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\upda7fa0452.bat"
          2⤵
            PID:2576

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Defense Evasion

        Virtualization/Sandbox Evasion

        4
        T1497

        Credential Access

        Credentials in Files

        1
        T1081

        Discovery

        Query Registry

        5
        T1012

        Virtualization/Sandbox Evasion

        4
        T1497

        System Information Discovery

        1
        T1082

        Collection

        Data from Local System

        1
        T1005

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\upda7fa0452.bat
          Filesize

          313B

          MD5

          b80a6eb7e04a056bdc95ec58fb57a8e1

          SHA1

          3cd4edce447ffa5c13c1cd1620f5aa8a00aa4b20

          SHA256

          a04be7479c907a9892d8092febd4c7fdd77569eab7e3e63aec75b533239212f7

          SHA512

          94a56edc71c0d4ddacb17e9573a03f1ea89cc954f62468ae1aeda8d4a3ccdbaef21abf1d27004582a4219ce0ca35ebc90de0c7378d55c2a2632f268833d548f7

        • C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\DC\Security\UnprotectRequest.exe
          Filesize

          361KB

          MD5

          e2eb762d6d248fec5b8af8ab437cfdc2

          SHA1

          c6be1c85d65136e6ce2cc098db499837d2c5ea9e

          SHA256

          e6967a3e28cc938341c5ca21332c84ec700e33ae632cd0c08dc6bbf16b212f28

          SHA512

          0c85ede00a5ae7d0fe5aabfb9b662c6329922e6278bc80b59384234891a1383fe53d7931b9ca7d52ac95a355cd10840a4886a268238e347077d91fb0ba7d3a33

        • C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\DC\Security\UnprotectRequest.exe
          Filesize

          361KB

          MD5

          e2eb762d6d248fec5b8af8ab437cfdc2

          SHA1

          c6be1c85d65136e6ce2cc098db499837d2c5ea9e

          SHA256

          e6967a3e28cc938341c5ca21332c84ec700e33ae632cd0c08dc6bbf16b212f28

          SHA512

          0c85ede00a5ae7d0fe5aabfb9b662c6329922e6278bc80b59384234891a1383fe53d7931b9ca7d52ac95a355cd10840a4886a268238e347077d91fb0ba7d3a33

        • memory/984-137-0x0000000000000000-mapping.dmp
        • memory/984-138-0x0000000000790000-0x00000000007B4000-memory.dmp
          Filesize

          144KB

        • memory/1892-136-0x0000000000400000-0x000000000045F000-memory.dmp
          Filesize

          380KB

        • memory/1892-135-0x0000000002710000-0x000000000273A000-memory.dmp
          Filesize

          168KB

        • memory/1892-132-0x0000000000000000-mapping.dmp
        • memory/2316-139-0x0000000000000000-mapping.dmp
        • memory/2316-140-0x0000000000880000-0x00000000008A4000-memory.dmp
          Filesize

          144KB

        • memory/2576-141-0x0000000000000000-mapping.dmp
        • memory/4124-130-0x00000000027C0000-0x00000000027EA000-memory.dmp
          Filesize

          168KB

        • memory/4124-131-0x0000000000400000-0x000000000045F000-memory.dmp
          Filesize

          380KB