Analysis

  • max time kernel
    108s
  • max time network
    108s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    27-02-2021 11:08

General

  • Target

    c346d3a0a6b975f4d663c2640bd6bd8fe0f0028b31420b68b5a585fec69eafc9.exe

  • Size

    505KB

  • MD5

    ebb6953b42064816c172bf1384bff891

  • SHA1

    83874ac89ffc018f26f7f0b4ec8dcbb67803b5ad

  • SHA256

    c346d3a0a6b975f4d663c2640bd6bd8fe0f0028b31420b68b5a585fec69eafc9

  • SHA512

    43a2d0ef1f434aea5d7da25fd6ed35d1a23e4ad2696b924f96a30237e21923832576d85877e1cad01fda796946dd021699ad5cf4aa415c30ba0dcfa8c75d1d1f

Malware Config

Signatures

  • 404 Keylogger

    Information stealer and keylogger first seen in 2019.

  • 404 Keylogger Main Executable 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • 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
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c346d3a0a6b975f4d663c2640bd6bd8fe0f0028b31420b68b5a585fec69eafc9.exe
    "C:\Users\Admin\AppData\Local\Temp\c346d3a0a6b975f4d663c2640bd6bd8fe0f0028b31420b68b5a585fec69eafc9.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1316
    • C:\Users\Admin\AppData\Local\Temp\c346d3a0a6b975f4d663c2640bd6bd8fe0f0028b31420b68b5a585fec69eafc9.exe
      "C:\Users\Admin\AppData\Local\Temp\c346d3a0a6b975f4d663c2640bd6bd8fe0f0028b31420b68b5a585fec69eafc9.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:812

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\c346d3a0a6b975f4d663c2640bd6bd8fe0f0028b31420b68b5a585fec69eafc9.exe.log

    MD5

    90acfd72f14a512712b1a7380c0faf60

    SHA1

    40ba4accb8faa75887e84fb8e38d598dc8cf0f12

    SHA256

    20806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86

    SHA512

    29dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9

  • memory/812-13-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/812-23-0x00000000053F0000-0x00000000053F1000-memory.dmp

    Filesize

    4KB

  • memory/812-22-0x0000000006970000-0x0000000006971000-memory.dmp

    Filesize

    4KB

  • memory/812-21-0x00000000063D0000-0x00000000063D1000-memory.dmp

    Filesize

    4KB

  • memory/812-16-0x0000000073C50000-0x000000007433E000-memory.dmp

    Filesize

    6.9MB

  • memory/812-14-0x000000000041CB9E-mapping.dmp

  • memory/1316-7-0x0000000005030000-0x0000000005031000-memory.dmp

    Filesize

    4KB

  • memory/1316-11-0x0000000008580000-0x0000000008583000-memory.dmp

    Filesize

    12KB

  • memory/1316-12-0x0000000006EB0000-0x0000000006EF3000-memory.dmp

    Filesize

    268KB

  • memory/1316-10-0x0000000005230000-0x0000000005231000-memory.dmp

    Filesize

    4KB

  • memory/1316-9-0x0000000005190000-0x0000000005191000-memory.dmp

    Filesize

    4KB

  • memory/1316-8-0x00000000029E0000-0x00000000029E1000-memory.dmp

    Filesize

    4KB

  • memory/1316-2-0x0000000073C50000-0x000000007433E000-memory.dmp

    Filesize

    6.9MB

  • memory/1316-6-0x0000000005530000-0x0000000005531000-memory.dmp

    Filesize

    4KB

  • memory/1316-5-0x0000000004F90000-0x0000000004F91000-memory.dmp

    Filesize

    4KB

  • memory/1316-3-0x0000000000630000-0x0000000000631000-memory.dmp

    Filesize

    4KB