Analysis

  • max time kernel
    65s
  • max time network
    76s
  • platform
    windows11_x64
  • resource
    win11
  • submitted
    25-11-2021 12:25

General

  • Target

    sentence_x64.dat.dll

  • Size

    83KB

  • MD5

    10d53f2baf0cc1321090e01201be84ab

  • SHA1

    153931308c62f6104d7c55c5690ed952833af6ac

  • SHA256

    e9d773366bcb19d4f69a9996c8eab48bdf7fb51097cf1613d8705b9c25dfe263

  • SHA512

    435451c84aba99d9b80c304a37e00eadc7bc11c583bc10c6c45e18a37fc223815218b8877cac1db079983b7ce696a03f487bd501bc7e32815e02335995616e00

Malware Config

Extracted

Family

icedid

Botnet

1217670233

C2

parkerrsberg.site

2sekillo.pw

subdibermarine.pw

zoplasure.top

Attributes
  • auth_var

    2

  • url_path

    /posts/

Signatures

  • IcedID, BokBot

    IcedID is a banking trojan capable of stealing credentials.

  • Sets service image path in registry 2 TTPs
  • Drops file in Windows directory 9 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\sentence_x64.dat.dll,#1
    1⤵
      PID:1300
    • C:\Windows\System32\WaaSMedicAgent.exe
      C:\Windows\System32\WaaSMedicAgent.exe 7b0442dc0a1fd4a119cc2bc641f4a16d AQL+qpu+CUG+hzZYwG6VUA.0.1.0.3.0
      1⤵
      • Modifies data under HKEY_USERS
      PID:2996
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
      1⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:1012
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k netsvcs -p -s UsoSvc
      1⤵
      • Checks processor information in registry
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1848
      • C:\Windows\uus\AMD64\MoUsoCoreWorker.exe
        C:\Windows\uus\AMD64\MoUsoCoreWorker.exe
        2⤵
          PID:2472
      • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.22000.100_none_04da31ff4c67c24a\TiWorker.exe
        C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.22000.100_none_04da31ff4c67c24a\TiWorker.exe -Embedding
        1⤵
        • Drops file in Windows directory
        • Suspicious use of AdjustPrivilegeToken
        PID:2852
      • C:\Windows\System32\WaaSMedicAgent.exe
        C:\Windows\System32\WaaSMedicAgent.exe 7b0442dc0a1fd4a119cc2bc641f4a16d AQL+qpu+CUG+hzZYwG6VUA.0.1.0.3.0
        1⤵
        • Modifies data under HKEY_USERS
        PID:2844
      • C:\Windows\System32\WaaSMedicAgent.exe
        C:\Windows\System32\WaaSMedicAgent.exe 7b0442dc0a1fd4a119cc2bc641f4a16d AQL+qpu+CUG+hzZYwG6VUA.0.1.0.3.0
        1⤵
        • Modifies data under HKEY_USERS
        PID:3720

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Persistence

      Registry Run Keys / Startup Folder

      1
      T1060

      Defense Evasion

      Modify Registry

      1
      T1112

      Discovery

      Query Registry

      1
      T1012

      System Information Discovery

      1
      T1082

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1012-147-0x0000022F81120000-0x0000022F81130000-memory.dmp
        Filesize

        64KB

      • memory/1012-148-0x0000022F811A0000-0x0000022F811B0000-memory.dmp
        Filesize

        64KB

      • memory/1012-149-0x0000022F83890000-0x0000022F83894000-memory.dmp
        Filesize

        16KB

      • memory/1300-146-0x000001C82AFD0000-0x000001C82B007000-memory.dmp
        Filesize

        220KB

      • memory/2472-150-0x0000000000000000-mapping.dmp