Analysis

  • max time kernel
    143s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    06-07-2022 16:48

General

  • Target

    SecuriteInfo.com.W32.AIDetectNet.01.14971.exe

  • Size

    517KB

  • MD5

    dd1c8fbeb5ccb5431ce8c6111a3dac1a

  • SHA1

    995027f1597164742533cc899095ebaa8b8b407d

  • SHA256

    15b8325df5457903aa6a8f86ddd64b7ea2fca232231e2e63044a1a0f9cc3f73b

  • SHA512

    27f22c5805909f57c96cd669d0469449215417ae099e57e3341271e05a654bbd904307f680b7af527f00f56d426f3f5ac716869dbb793b222e6bb2e89ed112e3

Malware Config

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger Payload 8 IoCs
  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 1 IoCs
  • XpertRAT

    XpertRAT is a remote access trojan with various capabilities.

  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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.

  • Windows security modification 2 TTPs 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 5 IoCs
  • Checks whether UAC is enabled 1 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.

  • Program crash 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs
  • System policy modification 1 TTPs 1 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.14971.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.14971.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4236
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3904
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4512
      • C:\Users\Admin\AppData\Local\Temp\EGGM.EXE
        "C:\Users\Admin\AppData\Local\Temp\EGGM.EXE"
        3⤵
        • Executes dropped EXE
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:2268
      • C:\Users\Admin\AppData\Local\Temp\SERVER.EXE
        "C:\Users\Admin\AppData\Local\Temp\SERVER.EXE"
        3⤵
        • UAC bypass
        • Windows security bypass
        • Executes dropped EXE
        • Windows security modification
        • Checks whether UAC is enabled
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        • System policy modification
        PID:3844
        • C:\Program Files (x86)\Internet Explorer\iexplore.exe
          C:\Users\Admin\AppData\Local\Temp\SERVER.EXE
          4⤵
            PID:3736
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 3736 -s 84
              5⤵
              • Program crash
              PID:3480
          • C:\Program Files (x86)\Internet Explorer\iexplore.exe
            C:\Users\Admin\AppData\Local\Temp\SERVER.EXE
            4⤵
            • Adds policy Run key to start application
            • Adds Run key to start application
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            PID:3048
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3736 -ip 3736
      1⤵
        PID:3688

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Persistence

      Registry Run Keys / Startup Folder

      2
      T1060

      Privilege Escalation

      Bypass User Account Control

      1
      T1088

      Defense Evasion

      Bypass User Account Control

      1
      T1088

      Disabling Security Tools

      3
      T1089

      Modify Registry

      6
      T1112

      Credential Access

      Credentials in Files

      3
      T1081

      Discovery

      Query Registry

      1
      T1012

      System Information Discovery

      3
      T1082

      Collection

      Data from Local System

      3
      T1005

      Email Collection

      1
      T1114

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\EGGM.EXE
        Filesize

        126KB

        MD5

        350dfc66657d2d9b2231bf8bfe33497b

        SHA1

        0fb28b28c416d21f1db2d54355e89fa8ec3e3324

        SHA256

        a2bb808321745ce0239b5a84c78a801644d903ce8a6ab87193337aaf2d01fc31

        SHA512

        635132ff935ea13048839d2c535d5abbae53c77d332df7c7628dbbb5db94ffc3b5be7820bb116da94433d6c814b5b4b6811bcc32b22cae3adffb086664e010e5

      • C:\Users\Admin\AppData\Local\Temp\EGGM.EXE
        Filesize

        126KB

        MD5

        350dfc66657d2d9b2231bf8bfe33497b

        SHA1

        0fb28b28c416d21f1db2d54355e89fa8ec3e3324

        SHA256

        a2bb808321745ce0239b5a84c78a801644d903ce8a6ab87193337aaf2d01fc31

        SHA512

        635132ff935ea13048839d2c535d5abbae53c77d332df7c7628dbbb5db94ffc3b5be7820bb116da94433d6c814b5b4b6811bcc32b22cae3adffb086664e010e5

      • C:\Users\Admin\AppData\Local\Temp\SERVER.EXE
        Filesize

        172KB

        MD5

        81912e3dd162ce7c96114a84d0d58b29

        SHA1

        2def8b1c48c9e550f57c9dab915c5232a7113d57

        SHA256

        f91cf396d6cc0e3803aa25fd0770e9a252196ae616e032e4880668c8ded74dc0

        SHA512

        893b3c4483d0a307cad24c73fce27bc4e02438439fc5b07d596146bdb92767e53e60642ff6264ce80891b10c0a7f2a3f5b397560a47ee6e1244d6e5e9a80f341

      • C:\Users\Admin\AppData\Local\Temp\SERVER.EXE
        Filesize

        172KB

        MD5

        81912e3dd162ce7c96114a84d0d58b29

        SHA1

        2def8b1c48c9e550f57c9dab915c5232a7113d57

        SHA256

        f91cf396d6cc0e3803aa25fd0770e9a252196ae616e032e4880668c8ded74dc0

        SHA512

        893b3c4483d0a307cad24c73fce27bc4e02438439fc5b07d596146bdb92767e53e60642ff6264ce80891b10c0a7f2a3f5b397560a47ee6e1244d6e5e9a80f341

      • memory/2268-159-0x0000000005F80000-0x0000000005F8A000-memory.dmp
        Filesize

        40KB

      • memory/2268-158-0x00000000061C0000-0x0000000006252000-memory.dmp
        Filesize

        584KB

      • memory/2268-155-0x00000000053B0000-0x0000000005954000-memory.dmp
        Filesize

        5.6MB

      • memory/2268-151-0x0000000000420000-0x0000000000446000-memory.dmp
        Filesize

        152KB

      • memory/2268-144-0x0000000000000000-mapping.dmp
      • memory/2268-156-0x0000000004CB0000-0x0000000004D4C000-memory.dmp
        Filesize

        624KB

      • memory/2268-157-0x0000000005FF0000-0x00000000061B2000-memory.dmp
        Filesize

        1.8MB

      • memory/3844-148-0x0000000000000000-mapping.dmp
      • memory/3904-134-0x0000000005FF0000-0x0000000006012000-memory.dmp
        Filesize

        136KB

      • memory/3904-139-0x0000000006D70000-0x0000000006D8A000-memory.dmp
        Filesize

        104KB

      • memory/3904-133-0x0000000005980000-0x0000000005FA8000-memory.dmp
        Filesize

        6.2MB

      • memory/3904-132-0x00000000052A0000-0x00000000052D6000-memory.dmp
        Filesize

        216KB

      • memory/3904-135-0x0000000006110000-0x0000000006176000-memory.dmp
        Filesize

        408KB

      • memory/3904-138-0x0000000007EB0000-0x000000000852A000-memory.dmp
        Filesize

        6.5MB

      • memory/3904-131-0x0000000000000000-mapping.dmp
      • memory/3904-137-0x0000000006870000-0x000000000688E000-memory.dmp
        Filesize

        120KB

      • memory/3904-136-0x0000000006230000-0x0000000006296000-memory.dmp
        Filesize

        408KB

      • memory/4236-130-0x0000000000420000-0x00000000004A6000-memory.dmp
        Filesize

        536KB

      • memory/4512-145-0x0000000000400000-0x000000000045C000-memory.dmp
        Filesize

        368KB

      • memory/4512-152-0x0000000000400000-0x000000000045C000-memory.dmp
        Filesize

        368KB

      • memory/4512-143-0x0000000000400000-0x000000000045C000-memory.dmp
        Filesize

        368KB

      • memory/4512-142-0x0000000000400000-0x000000000045C000-memory.dmp
        Filesize

        368KB

      • memory/4512-141-0x0000000000400000-0x000000000045C000-memory.dmp
        Filesize

        368KB

      • memory/4512-140-0x0000000000000000-mapping.dmp