Overview

overview

8

Static

static

zloader_1....ir.exe

windows7_x64

8

zloader_1....ir.exe

windows10_x64

8

Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    19-07-2020 19:30

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General

  • Target

    zloader_1.8.0.0.vir.exe

  • Size

    3.3MB

  • MD5

    8211a69a3a068265e8b9ab03e4546581

  • SHA1

    e4e520c3ae68ab2ed566d1f090ef0dc5c8003b0e

  • SHA256

    f6c6a59c54373d9a49e7a5a7aa859d6bda9f5826e4bb652f5898fa78c8748f39

  • SHA512

    5b52482d6de03084fcf06c846f59f6455ab3635b80c100d523f48ae780e4f31675948488f00005806416d76c4e056ca87a96d6db7dae9e80d941c2226dbf2075

Score
8/10
spywareevasiontrojanpersistence

Malware Config

Signatures

  • Suspicious use of WriteProcessMemory 18 IoCs
  • Deletes itself 1 IoCs
  • Suspicious use of UnmapMainImage 8727 IoCs
  • Blacklisted process makes network request 6 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 1414 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spyware
  • Modifies system certificate store 2 TTPs 2 IoCs
    evasionspywaretrojan
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • NTFS ADS 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 5 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1104
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1184
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
        • Suspicious use of WriteProcessMemory
        • Deletes itself
        • Suspicious use of UnmapMainImage
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Checks whether UAC is enabled
        • NTFS ADS
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1256
        • C:\Users\Admin\AppData\Local\Temp\zloader_1.8.0.0.vir.exe
          "C:\Users\Admin\AppData\Local\Temp\zloader_1.8.0.0.vir.exe"
          2⤵
          • Suspicious use of WriteProcessMemory
          • Suspicious behavior: MapViewOfSection
          PID:1612
          • C:\Windows\SysWOW64\explorer.exe
            "C:\Windows\SysWOW64\explorer.exe"
            3⤵
            • Suspicious use of WriteProcessMemory
            • Suspicious behavior: EnumeratesProcesses
            PID:364
        • C:\Windows\system32\msiexec.exe
          C:\Windows\system32\msiexec.exe
          2⤵
          • Blacklisted process makes network request
          • Modifies system certificate store
          PID:1800

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Initial Access

      Execution

      Persistence

      Registry Run Keys / Startup Folder

      1
      T1060

      Privilege Escalation

      Defense Evasion

      Modify Registry

      2
      T1112

      Install Root Certificate

      1
      T1130

      Credential Access

      Credentials in Files

      1
      T1081

      Discovery

      System Information Discovery

      1
      T1082

      Lateral Movement

      Collection

      Data from Local System

      1
      T1005

      Exfiltration

      Command and Control

      Impact

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Roaming\Oral\yzirk.exe
        Download Submit
      • memory/364-0-0x0000000000000000-mapping.dmp
        Download
      • memory/364-1-0x00000000006C0000-0x0000000000941000-memory.dmp
        Filesize

        2.5MB

        Download
      • memory/1104-2-0x0000000001B00000-0x0000000001B01000-memory.dmp
        Filesize

        4KB

        Download
      • memory/1800-5-0x0000000000000000-mapping.dmp
        Download