Resubmissions

08/09/2021, 10:24

210908-mfrgzaecf710

05/08/2021, 12:06

210805-cg3fhl5swj10

Analysis

  • max time kernel
    1693s
  • max time network
    1772s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    08/09/2021, 10:24

General

  • Target
    WinHost32.exe_.exe
  • Size 168KB
  • Sample210908-mfrgzaecf7
  • SHA256 16e9388cc66a4e3788be226cffcf16c4440e1b4a14a062099e6cd47f55d88e82
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • hancitor

Botnet
  • exp_12

C2
  • http://gatiallylyb.com/4/forum.php

  • http://sintiellubje.ru/4/forum.php

  • http://divelerencio.ru/4/forum.php

Signatures

  • Hancitor

    Hancitor is downloader used to deliver other malware families.

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Drops file in System32 directory 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 32 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\WinHost32.exe_.exe
    "C:\Users\Admin\AppData\Local\Temp\WinHost32.exe_.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1832
    • C:\Windows\SysWOW64\WinHost32.exe
      C:\Windows\System32\WinHost32.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:200
    • C:\Windows\SysWOW64\cmd.exe
      /c del C:\Users\Admin\AppData\Local\Temp\WinHost32.exe_.exe >> NUL
      2⤵
        PID:2376

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/200-120-0x0000000000900000-0x0000000000A4A000-memory.dmp

          memory/200-121-0x0000000000400000-0x0000000000894000-memory.dmp

          memory/1832-119-0x0000000000400000-0x0000000000894000-memory.dmp

          memory/1832-118-0x00000000009C0000-0x00000000009C8000-memory.dmp