Overview

overview

8

Static

static

tasks_194.vir.exe

windows7_x64

8

tasks_194.vir.exe

windows10_x64

8

Analysis

  • max time kernel
    151s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    19-07-2020 19:48

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General

  • Target

    tasks_194.vir.exe

  • Size

    381KB

  • MD5

    10bc0e7d6e0bd17fb7c9bee0ec008867

  • SHA1

    2f16c00055dae0cf5354cc0105c77f3b48921355

  • SHA256

    3247c294343dd15fa29bf6c3c421081381572c8e4503e334414f9db49eaad880

  • SHA512

    a5de4555e9093ac7f4fabd09ee7a3044e7e94819604fb84c8e5e2f407966c816c8085a59fd1cd66f6a667e66f414d14913148f1b317499509583e29a7e8e4bcf

Score
8/10
persistenceevasiontrojan

Malware Config

Signatures

  • Drops file in System32 directory 2 IoCs
  • Adds Run key to start application 2 TTPs 10 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Loads dropped DLL 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 83 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of FindShellTrayWindow 5 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Drops file in Windows directory 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs
  • Deletes itself 1 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Suspicious use of SendNotifyMessage
    • Suspicious use of FindShellTrayWindow
    PID:1312
    • C:\Users\Admin\AppData\Local\Temp\tasks_194.vir.exe
      "C:\Users\Admin\AppData\Local\Temp\tasks_194.vir.exe"
      2⤵
      • Drops file in System32 directory
      • Loads dropped DLL
      • Drops file in Windows directory
      • Suspicious use of WriteProcessMemory
      PID:1324
      • C:\Users\Admin\AppData\Roaming\Boguyz\tavyso.exe
        "C:\Users\Admin\AppData\Roaming\Boguyz\tavyso.exe"
        3⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:900
        • C:\Users\Admin\AppData\Roaming\Boguyz\tavyso.exe
          "C:\Users\Admin\AppData\Roaming\Boguyz\tavyso.exe" -child
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetWindowsHookEx
          • Modifies Internet Explorer settings
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:1644
          • C:\Windows\SysWOW64\ctfmon.exe
            ctfmon.exe
            5⤵
              PID:1848
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmpbf3ce74f.bat"
          3⤵
          • Deletes itself
          PID:1064
    • C:\Windows\SysWOW64\winsec32.exe
      "C:\Windows\SysWOW64\winsec32.exe" -service "C:\Users\Admin\AppData\Roaming\Boguyz\tavyso.exe"
      1⤵
      • Adds Run key to start application
      • Executes dropped EXE
      PID:1416

    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\tmpbf3ce74f.bat
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    • C:\Users\Admin\AppData\Roaming\Boguyz\tavyso.exe
      Download Submit
    • C:\Users\Admin\AppData\Roaming\Boguyz\tavyso.exe
      Download Submit
    • C:\Users\Admin\AppData\Roaming\Boguyz\tavyso.exe
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    • C:\Windows\SysWOW64\winsec32.exe
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    • C:\Windows\SysWOW64\winsec32.exe
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    • \Users\Admin\AppData\Roaming\Boguyz\tavyso.exe
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    • memory/900-4-0x0000000000000000-mapping.dmp
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    • memory/1064-8-0x0000000000000000-mapping.dmp
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    • memory/1312-6-0x00000000063B0000-0x00000000063B1000-memory.dmp
      Filesize

      4KB

      Download
    • memory/1644-7-0x0000000000000000-mapping.dmp
      Download
    • memory/1848-16-0x0000000000000000-mapping.dmp
      Download