Analysis

  • max time kernel
    139s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-07-2023 20:25

General

  • Target

    NA_NA_35c840955f4be7exeexe_JC.exe

  • Size

    2.2MB

  • MD5

    35c840955f4be789ddc0e252974171ef

  • SHA1

    c96bb00118c2a129bae0da4696e8f31b028e4a43

  • SHA256

    c3c053e4997390d69fbbc2b81b1452b717bfbe23d27df456b79ac63b04d9527e

  • SHA512

    5bf7df799ca903f7a97725c0644533f74d33df42aa8e629fc0a165eb66d27dc1a787cc72fbab3b9f5dfaea6db2a1137d799093a4de8adabe600f34fbc3183da2

  • SSDEEP

    49152:9bYwI4iheW4SkZP4sz9Mb5eW4SkZP4sz9MbQ:yei1fkZcNfkZcQ

Malware Config

Signatures

  • Blackmoon, KrBanker

    Blackmoon also known as KrBanker is banking trojan first discovered in early 2014.

  • Detect Blackmoon payload 4 IoCs
  • UAC bypass 3 TTPs 1 IoCs
  • Adds policy Run key to start application 2 TTPs 1 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops autorun.inf file 1 TTPs 6 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in System32 directory 64 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • System policy modification 1 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NA_NA_35c840955f4be7exeexe_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\NA_NA_35c840955f4be7exeexe_JC.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1596
    • C:\Windows\360\360Safe\deepscan\ZhuDongFangYu.exe
      "C:\Windows\360\360Safe\deepscan\ZhuDongFangYu.exe"
      2⤵
      • UAC bypass
      • Adds policy Run key to start application
      • Disables RegEdit via registry modification
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops autorun.inf file
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • System policy modification
      PID:2072

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\360\360Safe\deepscan\ZhuDongFangYu.exe

    Filesize

    2.2MB

    MD5

    35c840955f4be789ddc0e252974171ef

    SHA1

    c96bb00118c2a129bae0da4696e8f31b028e4a43

    SHA256

    c3c053e4997390d69fbbc2b81b1452b717bfbe23d27df456b79ac63b04d9527e

    SHA512

    5bf7df799ca903f7a97725c0644533f74d33df42aa8e629fc0a165eb66d27dc1a787cc72fbab3b9f5dfaea6db2a1137d799093a4de8adabe600f34fbc3183da2

  • C:\Windows\360\360Safe\deepscan\ZhuDongFangYu.exe

    Filesize

    2.2MB

    MD5

    35c840955f4be789ddc0e252974171ef

    SHA1

    c96bb00118c2a129bae0da4696e8f31b028e4a43

    SHA256

    c3c053e4997390d69fbbc2b81b1452b717bfbe23d27df456b79ac63b04d9527e

    SHA512

    5bf7df799ca903f7a97725c0644533f74d33df42aa8e629fc0a165eb66d27dc1a787cc72fbab3b9f5dfaea6db2a1137d799093a4de8adabe600f34fbc3183da2

  • C:\Windows\360\360Safe\deepscan\ZhuDongFangYu.exe

    Filesize

    2.2MB

    MD5

    35c840955f4be789ddc0e252974171ef

    SHA1

    c96bb00118c2a129bae0da4696e8f31b028e4a43

    SHA256

    c3c053e4997390d69fbbc2b81b1452b717bfbe23d27df456b79ac63b04d9527e

    SHA512

    5bf7df799ca903f7a97725c0644533f74d33df42aa8e629fc0a165eb66d27dc1a787cc72fbab3b9f5dfaea6db2a1137d799093a4de8adabe600f34fbc3183da2

  • memory/1596-133-0x0000000000400000-0x000000000044D000-memory.dmp

    Filesize

    308KB