Analysis

  • max time kernel
    82s
  • max time network
    84s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    29-03-2021 10:36

General

  • Target

    B7D90C9D14D124A163F5B3476160E1CF.exe

  • Size

    278KB

  • MD5

    b7d90c9d14d124a163f5b3476160e1cf

  • SHA1

    684e0fc52a883091957f65c0d2ff59fe1499bae4

  • SHA256

    10192ceb4aa066216989c2b83dd3b460f0264d6672f64d1dff2addbe07fb1a5a

  • SHA512

    05be8f906ae6f33ec541a951f3230e0ffcd1f17b9da4bf6e60158bc2ac1c915d5bf2050039672f5cb8479d01e7e7948466e711b574915f35fe109915e8c65ad7

Malware Config

Extracted

Family

fickerstealer

C2

deniedfight.com: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 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\B7D90C9D14D124A163F5B3476160E1CF.exe
    "C:\Users\Admin\AppData\Local\Temp\B7D90C9D14D124A163F5B3476160E1CF.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1108
    • C:\Users\Admin\AppData\Local\Temp\B7D90C9D14D124A163F5B3476160E1CF.exe
      "C:\Users\Admin\AppData\Local\Temp\B7D90C9D14D124A163F5B3476160E1CF.exe"
      2⤵
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:1780

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1108-2-0x0000000002180000-0x0000000002191000-memory.dmp
    Filesize

    68KB

  • memory/1108-5-0x0000000000220000-0x0000000000265000-memory.dmp
    Filesize

    276KB

  • memory/1364-8-0x000007FEF7510000-0x000007FEF778A000-memory.dmp
    Filesize

    2MB

  • memory/1780-3-0x0000000000400000-0x0000000000449000-memory.dmp
    Filesize

    292KB

  • memory/1780-4-0x0000000000401480-mapping.dmp
  • memory/1780-6-0x0000000000400000-0x0000000000449000-memory.dmp
    Filesize

    292KB

  • memory/1780-7-0x00000000760D1000-0x00000000760D3000-memory.dmp
    Filesize

    8KB