Analysis

  • max time kernel
    146s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    27-04-2022 18:57

General

  • Target

    1488eb28612b1110c7062e85a2053f4f4d6ee6eb0260767e9f55189a15f17b2f.exe

  • Size

    204KB

  • MD5

    3f779cbd793bb0b2d61e5925953ef474

  • SHA1

    9102cb5747aaa47fe162714026a21251fe215770

  • SHA256

    1488eb28612b1110c7062e85a2053f4f4d6ee6eb0260767e9f55189a15f17b2f

  • SHA512

    f98e33086f1a94524eff4b5265ec5dc7421e48daccf0220b36abbb960961864cd13dd8cea9a0affb465faba143730926d51328412a5172de3d251c696d0d6158

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Installs/modifies Browser Helper Object 2 TTPs

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

  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 6 IoCs
  • Modifies registry class 60 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1488eb28612b1110c7062e85a2053f4f4d6ee6eb0260767e9f55189a15f17b2f.exe
    "C:\Users\Admin\AppData\Local\Temp\1488eb28612b1110c7062e85a2053f4f4d6ee6eb0260767e9f55189a15f17b2f.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:4464
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\7B3F.bat
      2⤵
        PID:4248

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Browser Extensions

    1
    T1176

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    Query Registry

    1
    T1012

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files (x86)\altcmd\altcmd32.dll
      Filesize

      180KB

      MD5

      7a2fd750427043d5640f82d745759af8

      SHA1

      8ec7c9a1a1277611a3dc3aba2e9430ff4aa0839a

      SHA256

      38c5b2dc0f3eb89a46bc5b7ac8b03f01f656b1bc06d86f5cf1a03a61a4f076b9

      SHA512

      9256820df7291580f397190fc6e53867059a420f40d14e3846833dba4f93d554d6dc0f8f7b79ef4355c64ae447f43cfdb2da0efc4180d9cecc1a5011af510b97

    • C:\Users\Admin\AppData\Local\Temp\7B3F.bat
      Filesize

      295B

      MD5

      921afee8eef401fa7c6aff293aefaf3e

      SHA1

      e7d7d76f7bd202e80cdfe38d419d80a528f9f154

      SHA256

      6bc9936963dc4e98e14c7c968b220e5bf026d44ea7d1d111f58bb7978a23e4af

      SHA512

      00cbc4d838f2b49782dc664dcf10139649440e5bc20d737ab0bd9c138de44b939d26401c5dead78bd2e3602d9de04af84e5c4281446ab90b76d66fc6895ad3ef

    • memory/4248-131-0x0000000000000000-mapping.dmp