Analysis

  • max time kernel
    118s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    13-05-2024 12:37

General

  • Target

    SecuriteInfo.com.Trojan.MulDrop27.17979.5143.26276.exe

  • Size

    192KB

  • MD5

    9e8baf127b832943d4fae218ce90191a

  • SHA1

    449e6f1c2c79cb0ee4d43151bcaa6ecfd38efa70

  • SHA256

    fbbb58d64ed3d52ebf0c4442588f4a19e48fd64023188fb750926b13c40df8a0

  • SHA512

    9af9e3e30c34ecad41277c0bb8e27eabaf7fa05249153ffac20262af4ed3680a5a85cc5c192b04b3da3835396ef68e4e4a8b9123c663d8cf2f3a8681db7f8114

  • SSDEEP

    6144:b05H0JNb+gzTy9ZRTbPG9rYxf2hnbSayKTTfq+T/ur:A+uHG9rYxf2hnbSayKTTfq+T/ur

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 2 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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.MulDrop27.17979.5143.26276.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.MulDrop27.17979.5143.26276.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1284
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "yar" /tr "C:\Users\Admin\AppData\Roaming\yar.exe"
      2⤵
      • Creates scheduled task(s)
      PID:2032
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {8FE94FF8-2333-4728-8883-0D1F341CB258} S-1-5-21-330940541-141609230-1670313778-1000:KXIPPCKF\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:588
    • C:\Users\Admin\AppData\Roaming\yar.exe
      C:\Users\Admin\AppData\Roaming\yar.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:532
    • C:\Users\Admin\AppData\Roaming\yar.exe
      C:\Users\Admin\AppData\Roaming\yar.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1496

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\yar.exe

    Filesize

    192KB

    MD5

    9e8baf127b832943d4fae218ce90191a

    SHA1

    449e6f1c2c79cb0ee4d43151bcaa6ecfd38efa70

    SHA256

    fbbb58d64ed3d52ebf0c4442588f4a19e48fd64023188fb750926b13c40df8a0

    SHA512

    9af9e3e30c34ecad41277c0bb8e27eabaf7fa05249153ffac20262af4ed3680a5a85cc5c192b04b3da3835396ef68e4e4a8b9123c663d8cf2f3a8681db7f8114

  • memory/532-10-0x0000000000B50000-0x0000000000B88000-memory.dmp

    Filesize

    224KB

  • memory/1284-0-0x000007FEF5313000-0x000007FEF5314000-memory.dmp

    Filesize

    4KB

  • memory/1284-1-0x0000000000960000-0x0000000000998000-memory.dmp

    Filesize

    224KB

  • memory/1284-2-0x0000000000340000-0x0000000000346000-memory.dmp

    Filesize

    24KB

  • memory/1284-3-0x000007FEF5310000-0x000007FEF5CFC000-memory.dmp

    Filesize

    9.9MB

  • memory/1284-5-0x000007FEF5313000-0x000007FEF5314000-memory.dmp

    Filesize

    4KB

  • memory/1284-6-0x000007FEF5310000-0x000007FEF5CFC000-memory.dmp

    Filesize

    9.9MB

  • memory/1496-12-0x00000000002D0000-0x0000000000308000-memory.dmp

    Filesize

    224KB