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Analysis

  • max time kernel
    150s
  • max time network
    52s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/12/2023, 02:45

General

  • Target

    ea755384c6e3558710e6bc8833d51e09aff904c76ecfa751895b9948feff726d_payload.exe

  • Size

    30KB

  • MD5

    109c692ea197cabe6ab720f415ca866f

  • SHA1

    0712a6095b3ade9e5ed763bdd5ad4d4ffa248d93

  • SHA256

    4c60260f51e6cba1b0276210a1f38140d11ed66404f339a672f7814f6e08c66e

  • SHA512

    edb5550c9b160872f8d650cd015ec8d2a95d8119abda2a57b8a435a08f1d2bb0ed0d3898f5e709d6877be6fbcc39de1284c518e74c40c074409624818d08842b

  • SSDEEP

    768:OAUqYpNSIoKpDd1KM02kQhx4hOtFceWzYqvz0bOS:HLo8LKtd1PBkQD4UtFceWnz

Malware Config

Extracted

Family

smokeloader

Botnet

up3

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 1 IoCs
  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 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\ea755384c6e3558710e6bc8833d51e09aff904c76ecfa751895b9948feff726d_payload.exe
    "C:\Users\Admin\AppData\Local\Temp\ea755384c6e3558710e6bc8833d51e09aff904c76ecfa751895b9948feff726d_payload.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:4428
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4428 -s 364
      2⤵
      • Program crash
      PID:2724
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4428 -ip 4428
    1⤵
      PID:3752

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3372-1-0x0000000000B40000-0x0000000000B56000-memory.dmp

      Filesize

      88KB

    • memory/4428-0-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

    • memory/4428-4-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB