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Analysis

  • max time kernel
    236s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    01/12/2022, 03:18

General

  • Target

    738e04fee141ca9a2103a345e267cccb84b10a038e344d0f5b13ebdc9a346080.exe

  • Size

    420KB

  • MD5

    7dda3df33113e1c532e2c4cdbe0af31b

  • SHA1

    9085cf53ff1620974289b6401791cb793c25582b

  • SHA256

    738e04fee141ca9a2103a345e267cccb84b10a038e344d0f5b13ebdc9a346080

  • SHA512

    cda5fc94fc93353bb83c8f2b94fe8ccdbdb7d7d5c87ce719dd94b7b957d7ecddac1259f88f656488f7d0842c9960d03f59914b78efcb8167704ea1b09e5ed974

  • SSDEEP

    6144:a8hbeHNyI7qy0LgPOcVHDnnY8bRZ+eHm+yn8vQ8w9ths+YMNoK2aZ3azO:Zh67q0jnnYUmqvEs+YMZ9Z3uO

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Kills process with taskkill 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 32 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\738e04fee141ca9a2103a345e267cccb84b10a038e344d0f5b13ebdc9a346080.exe
    "C:\Users\Admin\AppData\Local\Temp\738e04fee141ca9a2103a345e267cccb84b10a038e344d0f5b13ebdc9a346080.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:916
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /f /pid 916 & ping -n 3 127.1 & del /f /q "C:\Users\Admin\AppData\Local\Temp\738e04fee141ca9a2103a345e267cccb84b10a038e344d0f5b13ebdc9a346080.exe" & start C:\Users\Admin\AppData\Local\atvhuw.exe -f
      2⤵
      • Deletes itself
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1544
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /pid 916
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1712
      • C:\Windows\SysWOW64\PING.EXE
        ping -n 3 127.1
        3⤵
        • Runs ping.exe
        PID:1164
      • C:\Users\Admin\AppData\Local\atvhuw.exe
        C:\Users\Admin\AppData\Local\atvhuw.exe -f
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1120

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\atvhuw.exe

    Filesize

    420KB

    MD5

    7dda3df33113e1c532e2c4cdbe0af31b

    SHA1

    9085cf53ff1620974289b6401791cb793c25582b

    SHA256

    738e04fee141ca9a2103a345e267cccb84b10a038e344d0f5b13ebdc9a346080

    SHA512

    cda5fc94fc93353bb83c8f2b94fe8ccdbdb7d7d5c87ce719dd94b7b957d7ecddac1259f88f656488f7d0842c9960d03f59914b78efcb8167704ea1b09e5ed974

  • C:\Users\Admin\AppData\Local\atvhuw.exe

    Filesize

    420KB

    MD5

    7dda3df33113e1c532e2c4cdbe0af31b

    SHA1

    9085cf53ff1620974289b6401791cb793c25582b

    SHA256

    738e04fee141ca9a2103a345e267cccb84b10a038e344d0f5b13ebdc9a346080

    SHA512

    cda5fc94fc93353bb83c8f2b94fe8ccdbdb7d7d5c87ce719dd94b7b957d7ecddac1259f88f656488f7d0842c9960d03f59914b78efcb8167704ea1b09e5ed974

  • \Users\Admin\AppData\Local\atvhuw.exe

    Filesize

    420KB

    MD5

    7dda3df33113e1c532e2c4cdbe0af31b

    SHA1

    9085cf53ff1620974289b6401791cb793c25582b

    SHA256

    738e04fee141ca9a2103a345e267cccb84b10a038e344d0f5b13ebdc9a346080

    SHA512

    cda5fc94fc93353bb83c8f2b94fe8ccdbdb7d7d5c87ce719dd94b7b957d7ecddac1259f88f656488f7d0842c9960d03f59914b78efcb8167704ea1b09e5ed974

  • \Users\Admin\AppData\Local\atvhuw.exe

    Filesize

    420KB

    MD5

    7dda3df33113e1c532e2c4cdbe0af31b

    SHA1

    9085cf53ff1620974289b6401791cb793c25582b

    SHA256

    738e04fee141ca9a2103a345e267cccb84b10a038e344d0f5b13ebdc9a346080

    SHA512

    cda5fc94fc93353bb83c8f2b94fe8ccdbdb7d7d5c87ce719dd94b7b957d7ecddac1259f88f656488f7d0842c9960d03f59914b78efcb8167704ea1b09e5ed974

  • \Users\Admin\AppData\Local\atvhuw.exe

    Filesize

    420KB

    MD5

    7dda3df33113e1c532e2c4cdbe0af31b

    SHA1

    9085cf53ff1620974289b6401791cb793c25582b

    SHA256

    738e04fee141ca9a2103a345e267cccb84b10a038e344d0f5b13ebdc9a346080

    SHA512

    cda5fc94fc93353bb83c8f2b94fe8ccdbdb7d7d5c87ce719dd94b7b957d7ecddac1259f88f656488f7d0842c9960d03f59914b78efcb8167704ea1b09e5ed974

  • memory/916-55-0x00000000001B0000-0x00000000001B6000-memory.dmp

    Filesize

    24KB

  • memory/916-56-0x0000000001000000-0x00000000010A6000-memory.dmp

    Filesize

    664KB

  • memory/916-58-0x0000000001000000-0x00000000010A6000-memory.dmp

    Filesize

    664KB

  • memory/916-54-0x0000000076711000-0x0000000076713000-memory.dmp

    Filesize

    8KB

  • memory/1120-69-0x0000000001000000-0x00000000010A6000-memory.dmp

    Filesize

    664KB

  • memory/1120-68-0x0000000001000000-0x00000000010A6000-memory.dmp

    Filesize

    664KB