Analysis

  • max time kernel
    96s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/02/2025, 20:16

General

  • Target

    $PROGRAM_FILES/Baidu/AddressBar.dll

  • Size

    1.1MB

  • MD5

    1650515a849b044871bd0703ebc87ff1

  • SHA1

    fa99046655efcf31bc8df831bfef9ee0c94b070a

  • SHA256

    d0b8a57c604cd89a37fbe6e56412ed9a4bdf04b61d16300f4409167a76206b85

  • SHA512

    3593716fd0c4a56ac0e7ef92803b3553ad94c2abd7d547939004af804f00b60a7bec890aaa51810f6fc42c2b182daf20109a4548c66231d87307321d12a9951c

  • SSDEEP

    24576:MENcJTZKFYkO5EmrWeYGd+9aBzm9PCRUjJ5C/sp5AtTWcTTswxGAk:MENcJTZKFYn59WeHd+q05KTWITswxGAk

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 23 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\$PROGRAM_FILES\Baidu\AddressBar.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1460
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\$PROGRAM_FILES\Baidu\AddressBar.dll
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:1612
      • C:\Users\Admin\appdata\local\temp\$PROGR~1\baidu\{E11E1~1\ASBarBroker.exe
        "C:\Users\Admin\appdata\local\temp\$PROGR~1\baidu\{E11E1~1\ASBarBroker.exe" -RegServer
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:4740

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\$PROGRAM_FILES\Baidu\{E11E187A-43D3-FCD1-29C4-8F05573F5F94}\addressbar.dll

    Filesize

    1.1MB

    MD5

    1650515a849b044871bd0703ebc87ff1

    SHA1

    fa99046655efcf31bc8df831bfef9ee0c94b070a

    SHA256

    d0b8a57c604cd89a37fbe6e56412ed9a4bdf04b61d16300f4409167a76206b85

    SHA512

    3593716fd0c4a56ac0e7ef92803b3553ad94c2abd7d547939004af804f00b60a7bec890aaa51810f6fc42c2b182daf20109a4548c66231d87307321d12a9951c

  • C:\Users\Admin\AppData\Local\Temp\$PROGR~1\Baidu\{E11E1~1\ASBarBroker.exe

    Filesize

    129KB

    MD5

    74f5e70ef8ed469759474c64ac6fd35b

    SHA1

    ff52fa0039c835bf78356dc87ba1390e7e4dafe5

    SHA256

    d7a15f7a7c8e48876aebf99056d212e57c7c1c250be7f61a96e44b0161f27da2

    SHA512

    a528b1d17d1dfe54d46decd7b553f090d1372a30528aa88ce74eb6b4ede20a9f0f247cd1785c956d33dd0c4b7d776b6fc1e052ba3da99db1548ba7f4ba4ade8e

  • memory/1612-6-0x0000000003080000-0x00000000031A6000-memory.dmp

    Filesize

    1.1MB