Analysis

  • max time kernel
    158s
  • max time network
    125s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    28-01-2022 18:12

General

  • Target

    33c77f1a6470b895e6531692d7f0656f059078e5e754064414c03af38e03bf53.exe

  • Size

    352KB

  • MD5

    78e1a5228b6f53501616a16a9619e4a5

  • SHA1

    3ae98bd1689eaac92cb2a7432d9b937445184429

  • SHA256

    33c77f1a6470b895e6531692d7f0656f059078e5e754064414c03af38e03bf53

  • SHA512

    f5624e45b8fd6baaac6b3b4abcc2c4128847076b251e143dc639494336ad64e5863d49ebbabb9ca1e23e2c49e536fe3d58b5639b660666d03b5702d3769d1204

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://host-data-coin-11.com/

http://file-coin-host-12.com/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 1 IoCs
  • Suspicious use of SetThreadContext 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: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\33c77f1a6470b895e6531692d7f0656f059078e5e754064414c03af38e03bf53.exe
    "C:\Users\Admin\AppData\Local\Temp\33c77f1a6470b895e6531692d7f0656f059078e5e754064414c03af38e03bf53.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3468
    • C:\Users\Admin\AppData\Local\Temp\33c77f1a6470b895e6531692d7f0656f059078e5e754064414c03af38e03bf53.exe
      "C:\Users\Admin\AppData\Local\Temp\33c77f1a6470b895e6531692d7f0656f059078e5e754064414c03af38e03bf53.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2208

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/2208-116-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2208-117-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2720-118-0x0000000001280000-0x0000000001296000-memory.dmp

    Filesize

    88KB