Overview

overview

10

Static

static

SKM_004202005000.exe

windows7_x64

10

SKM_004202005000.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    142s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 01:11

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General

  • Target

    SKM_004202005000.exe

  • Size

    538KB

  • MD5

    7b29ed387e5ee010639af0fad63d582b

  • SHA1

    b68dfa3f4220665d4c0bb90480305d79948e838e

  • SHA256

    51d5ab8487876cbc9c82c7450affdab67de13f1ff8b126f82fefa4281698ad59

  • SHA512

    d905c44ac09aaece6b72acf53897c273ecd36512f5ac5d054b4217bdd290aa4c4dee6262c4c85f9a1cd67abd7f0c102a4fdfec4deab0c99d813192cbca166b70

Score
10/10
404keyloggercollectionkeyloggerspywarestealer

Malware Config

Extracted

Credentials

  • Protocol:     smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    rDdlJ%h9

Signatures

  • 404 Keylogger

    Information stealer and keylogger first seen in 2019.

    stealerkeylogger404keylogger
  • 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.

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

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

    spywarestealer
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
    collection
  • 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
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SKM_004202005000.exe
    "C:\Users\Admin\AppData\Local\Temp\SKM_004202005000.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:3584
    • C:\Users\Admin\AppData\Local\Temp\SKM_004202005000.exe
      "C:\Users\Admin\AppData\Local\Temp\SKM_004202005000.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2672
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2672 -s 2168
        3⤵
        • Program crash
        PID:8
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2672 -ip 2672
    1⤵
      PID:916

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Privilege Escalation

    Defense Evasion

    Credential Access

    Credentials in Files

    3
    T1081

    Discovery

    Lateral Movement

    Collection

    Data from Local System

    3
    T1005

    Email Collection

    1
    T1114

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • memory/2672-130-0x0000000000000000-mapping.dmp
      Download
    • memory/2672-131-0x0000000000900000-0x0000000000922000-memory.dmp
      Filesize

      136KB

      Download
    • memory/2672-132-0x0000000000900000-0x0000000000922000-memory.dmp
      Filesize

      136KB

      Download
    • memory/2672-134-0x00000000049A0000-0x0000000004F44000-memory.dmp
      Filesize

      5.6MB

      Download
    • memory/2672-135-0x00000000048F0000-0x000000000498C000-memory.dmp
      Filesize

      624KB

      Download
    • memory/2672-136-0x00000000059C0000-0x0000000005A26000-memory.dmp
      Filesize

      408KB

      Download
    • memory/2672-137-0x0000000005F00000-0x00000000060C2000-memory.dmp
      Filesize

      1.8MB

      Download
    • memory/2672-138-0x00000000062D0000-0x0000000006362000-memory.dmp
      Filesize

      584KB

      Download
    • memory/3584-133-0x00000000007D0000-0x00000000007DA000-memory.dmp
      Filesize

      40KB

      Download