Overview

overview

8

Static

static

tasks_184.vir.exe

windows7_x64

8

tasks_184.vir.exe

windows10_x64

1

Analysis

  • max time kernel
    151s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    19-07-2020 19:46

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General

  • Target

    tasks_184.vir.exe

  • Size

    212KB

  • MD5

    b39e62bc394874ceaa28fcaa1b236ec8

  • SHA1

    bc32d211d743ebf25b1b85aa2b1d064c774d5982

  • SHA256

    e731b927c5495ac3c0255b048dd5c0df742658beaab3051acc077e751cefd024

  • SHA512

    ee509a26a13d4fb7b24182f2ae1dd7b69ac3d8bac99949728a5a1927c0351ccb900402cb6c424f5ad63e570e1f8d307ff23cb54e4b485ff819e5815d4189eac0

Score
8/10
persistenceevasiontrojan

Malware Config

Signatures

  • Suspicious use of WriteProcessMemory 23 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Drops file in Windows directory 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 84 IoCs
  • Adds Run key to start application 2 TTPs 10 IoCs
    persistence
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Executes dropped EXE 3 IoCs
  • Suspicious use of FindShellTrayWindow 5 IoCs
  • Drops file in System32 directory 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Deletes itself 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SendNotifyMessage
    • Adds Run key to start application
    • Suspicious use of FindShellTrayWindow
    • Checks whether UAC is enabled
    PID:1276
    • C:\Users\Admin\AppData\Local\Temp\tasks_184.vir.exe
      "C:\Users\Admin\AppData\Local\Temp\tasks_184.vir.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      • Drops file in Windows directory
      • Drops file in System32 directory
      • Loads dropped DLL
      PID:1144
      • C:\Users\Admin\AppData\Roaming\Xaesqu\usilf.exe
        "C:\Users\Admin\AppData\Roaming\Xaesqu\usilf.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        • Suspicious behavior: EnumeratesProcesses
        • Adds Run key to start application
        • Executes dropped EXE
        PID:1464
        • C:\Users\Admin\AppData\Roaming\Xaesqu\usilf.exe
          "C:\Users\Admin\AppData\Roaming\Xaesqu\usilf.exe" -child
          4⤵
          • Suspicious use of WriteProcessMemory
          • Suspicious use of SetWindowsHookEx
          • Suspicious behavior: EnumeratesProcesses
          • Modifies Internet Explorer settings
          • Executes dropped EXE
          PID:540
          • C:\Windows\SysWOW64\ctfmon.exe
            ctfmon.exe
            5⤵
              PID:1780
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmpf2613ac4.bat"
          3⤵
          • Deletes itself
          PID:784
    • C:\Windows\SysWOW64\winsec32.exe
      "C:\Windows\SysWOW64\winsec32.exe" -service "C:\Users\Admin\AppData\Roaming\Xaesqu\usilf.exe"
      1⤵
      • Adds Run key to start application
      • Executes dropped EXE
      PID:1120

    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

    Credential Access

    Discovery

    System Information Discovery

    1
    T1082

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpf2613ac4.bat
      Download Submit
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\H9ETUR54.txt
      Download Submit
    • C:\Users\Admin\AppData\Roaming\Xaesqu\usilf.exe
      Download Submit
    • C:\Users\Admin\AppData\Roaming\Xaesqu\usilf.exe
      Download Submit
    • C:\Users\Admin\AppData\Roaming\Xaesqu\usilf.exe
      Download Submit
    • C:\Windows\SysWOW64\winsec32.exe
      Download Submit
    • C:\Windows\SysWOW64\winsec32.exe
      Download Submit
    • \Users\Admin\AppData\Roaming\Xaesqu\usilf.exe
      Download Submit
    • memory/540-9-0x0000000000000000-mapping.dmp
      Download
    • memory/784-8-0x0000000000000000-mapping.dmp
      Download
    • memory/1276-6-0x00000000049B0000-0x00000000049B1000-memory.dmp
      Filesize

      4KB

      Download
    • memory/1464-4-0x0000000000000000-mapping.dmp
      Download
    • memory/1780-16-0x0000000000000000-mapping.dmp
      Download