Analysis

  • max time kernel
    54s
  • max time network
    137s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    26/04/2021, 10:10

General

  • Target

    6a5c01094af0e68641b205561c8c8abf2d2ef91ca3388fe831daa3d86b21aac2-20210426-055421.exe

  • Size

    357KB

  • MD5

    1923d20759366128905a9c8a20d1bbe6

  • SHA1

    b771808cec57d4c79653c76b999c50f9f2fadffc

  • SHA256

    6a5c01094af0e68641b205561c8c8abf2d2ef91ca3388fe831daa3d86b21aac2

  • SHA512

    80cb2aa2259d60dae88c002f1d963d9cc1415d0c227a94117f6313616684390e1fb9d565ede96228023c4e61a852a783dd0034566b8765dbe9ff752f48c8fa17

Malware Config

Extracted

Family

fickerstealer

C2

gurums.best:80

Signatures

  • fickerstealer

    Ficker is an infostealer written in Rust and ASM.

  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6a5c01094af0e68641b205561c8c8abf2d2ef91ca3388fe831daa3d86b21aac2-20210426-055421.exe
    "C:\Users\Admin\AppData\Local\Temp\6a5c01094af0e68641b205561c8c8abf2d2ef91ca3388fe831daa3d86b21aac2-20210426-055421.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:500
    • C:\Users\Admin\AppData\Local\Temp\6a5c01094af0e68641b205561c8c8abf2d2ef91ca3388fe831daa3d86b21aac2-20210426-055421.exe
      "C:\Users\Admin\AppData\Local\Temp\6a5c01094af0e68641b205561c8c8abf2d2ef91ca3388fe831daa3d86b21aac2-20210426-055421.exe"
      2⤵
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:2704

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/500-114-0x00000000020D0000-0x0000000002114000-memory.dmp

          Filesize

          272KB

        • memory/2704-115-0x0000000000400000-0x0000000000447000-memory.dmp

          Filesize

          284KB

        • memory/2704-117-0x0000000000400000-0x0000000000447000-memory.dmp

          Filesize

          284KB