Analysis

  • max time kernel
    95s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-02-2023 04:41

General

  • Target

    a983f92e01f896658e290d072fc82e72.exe

  • Size

    617KB

  • MD5

    a983f92e01f896658e290d072fc82e72

  • SHA1

    8e531921442d1e8d2a264b825009e06d829a037d

  • SHA256

    d79a1f94e5bd55d0ac6b65c55984801b876fd27236a7e458ccba4e49e2a9bd85

  • SHA512

    b28309374c275ff42573aadb4e7b2ce0c85618c1b7dda9d43c3f58acdac722ae974e19d3fd4e006229afe3bf9f2bfd2124fdaf642011afb9f982b4529fe0120f

  • SSDEEP

    12288:6o+8M9y1CuNt7DDYm+za1dwjk/Zf0sOveMTrPuAyBZ7:6o8VuNRMfza/wgxd6hH67

Malware Config

Extracted

Family

fickerstealer

C2

91.228.224.98:8080

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.

  • Uses the VBS compiler for execution 1 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • 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 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a983f92e01f896658e290d072fc82e72.exe
    "C:\Users\Admin\AppData\Local\Temp\a983f92e01f896658e290d072fc82e72.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:812
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:3616

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\wqddd.txt

    Filesize

    12B

    MD5

    71d587e911373f62d72a158eceb6e0e7

    SHA1

    68d81a1a4fb19c609288a94f10d1bbb92d972a68

    SHA256

    acce61361a3dee677653fa2909f29530202335835c71031ba4dff50682ae5de8

    SHA512

    a0010c487c8b1eeae82ae82896bf5f48b7ec5573197bbe149b6803093a32b3b470ef0b122278e404cd5df296376bb0629438609997d52c14757ff1c3e6756060

  • memory/812-133-0x0000000000680000-0x0000000000700000-memory.dmp

    Filesize

    512KB

  • memory/812-137-0x0000000005040000-0x0000000005050000-memory.dmp

    Filesize

    64KB

  • memory/812-145-0x0000000005040000-0x0000000005050000-memory.dmp

    Filesize

    64KB

  • memory/3616-134-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/3616-136-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/3616-138-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/3616-144-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB