Analysis

  • max time kernel
    29s
  • max time network
    32s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-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 1 IoCs
  • Suspicious use of WriteProcessMemory 13 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:1484
    • 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:1436

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\wqddd.txt

    Filesize

    12B

    MD5

    0146b97f1bf748301734071d33706ba1

    SHA1

    4fe8ed756a2e7d09499d962cb3ffd9a7d3e20495

    SHA256

    c3af235b5b9c8f8c0657cab7c8c85f85d97100c7d13cb4fb6626c667e06b697f

    SHA512

    34e2df58d22ddbc3b5d4355394232e71b8ec68c389d2a21d99981200ba80e3f90e4af3c56aef2d50b5042796d658e6ac9007450d4e32f0d8db43d167a59f0cfb

  • memory/1436-60-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1436-61-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1436-57-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1436-59-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1436-63-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

    Filesize

    4KB

  • memory/1436-62-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1436-56-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1436-74-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1436-58-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1436-64-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1436-55-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1436-66-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1436-68-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1484-67-0x0000000000FA0000-0x0000000000FE0000-memory.dmp

    Filesize

    256KB

  • memory/1484-54-0x0000000001020000-0x00000000010A0000-memory.dmp

    Filesize

    512KB

  • memory/1484-75-0x0000000000FA0000-0x0000000000FE0000-memory.dmp

    Filesize

    256KB