Analysis

  • max time kernel
    91s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-10-2022 23:41

General

  • Target

    4ba007b10190fdae6ab529ead92ac85e.exe

  • Size

    445KB

  • MD5

    4ba007b10190fdae6ab529ead92ac85e

  • SHA1

    12a3b473e99b258dbf3692467d960ab3b421c71c

  • SHA256

    58433f617218ea615f48b5670b6ac8cbbe579e6c71cbb9a4a127f02d8ccb52e6

  • SHA512

    9b9abcfc8ec3b8a13bd33c5f3fccd44290dd8ab319e23e36ae5a9ce6c98fed50c0b8fbabdcd2ebaf1ad2dfff822eb0be6d44a0b5de2ac332bcb6faa55ac613ee

  • SSDEEP

    6144:7h43lPnBElcXJaq5sWMZVuV1DqUPb49Zva5AFTcK4yJB1S949g7ITsqeewVf6XOO:7OB8cXxuWPqR9ZvwAFTB4yJTt9g7RWl

Malware Config

Extracted

Family

fickerstealer

C2

linkappd.link:8080

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\4ba007b10190fdae6ab529ead92ac85e.exe
    "C:\Users\Admin\AppData\Local\Temp\4ba007b10190fdae6ab529ead92ac85e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2028
    • C:\Users\Admin\AppData\Local\Temp\4ba007b10190fdae6ab529ead92ac85e.exe
      "C:\Users\Admin\AppData\Local\Temp\4ba007b10190fdae6ab529ead92ac85e.exe"
      2⤵
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:1372

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1372-134-0x0000000000000000-mapping.dmp

  • memory/1372-135-0x0000000000400000-0x0000000000467000-memory.dmp

    Filesize

    412KB

  • memory/1372-137-0x0000000000400000-0x0000000000467000-memory.dmp

    Filesize

    412KB

  • memory/1372-138-0x0000000000400000-0x0000000000467000-memory.dmp

    Filesize

    412KB

  • memory/1372-139-0x0000000000400000-0x0000000000467000-memory.dmp

    Filesize

    412KB

  • memory/1372-140-0x0000000000400000-0x0000000000467000-memory.dmp

    Filesize

    412KB

  • memory/2028-132-0x00000000006AD000-0x00000000006E3000-memory.dmp

    Filesize

    216KB

  • memory/2028-133-0x0000000002130000-0x0000000002191000-memory.dmp

    Filesize

    388KB