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Analysis

  • max time kernel
    150s
  • max time network
    54s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    29/09/2021, 03:16

General

  • Target

    f8c9d11a8316183bc3c137f9e1d452c7.exe

  • Size

    233KB

  • MD5

    f8c9d11a8316183bc3c137f9e1d452c7

  • SHA1

    a32a7b8ca21bc1da2ccd397e88fcb589b41a81e4

  • SHA256

    897bb67dac34904d72e20fb6b62feb31c86575107563db56535c38d81eec56aa

  • SHA512

    0e5435387b765b38f3f3198b1a1a13c66cecb791129becb7187a1b3bfa98d603b3923f92e8ff1bb26ca69151c1fcb9ea4c1ea0d95492f14d552861fcb8102ae8

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://naghenrietti1.top/

http://kimballiett2.top/

http://xadriettany3.top/

http://jebeccallis4.top/

http://nityanneron5.top/

http://umayaniela6.top/

http://lynettaram7.top/

http://sadineyalas8.top/

http://geenaldencia9.top/

http://aradysiusep10.top/

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 FindShellTrayWindow 6 IoCs
  • Suspicious use of SendNotifyMessage 6 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f8c9d11a8316183bc3c137f9e1d452c7.exe
    "C:\Users\Admin\AppData\Local\Temp\f8c9d11a8316183bc3c137f9e1d452c7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1272
    • C:\Users\Admin\AppData\Local\Temp\f8c9d11a8316183bc3c137f9e1d452c7.exe
      "C:\Users\Admin\AppData\Local\Temp\f8c9d11a8316183bc3c137f9e1d452c7.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1328

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1216-57-0x00000000029D0000-0x00000000029E6000-memory.dmp

    Filesize

    88KB

  • memory/1272-56-0x0000000000020000-0x0000000000029000-memory.dmp

    Filesize

    36KB

  • memory/1328-53-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1328-55-0x0000000075331000-0x0000000075333000-memory.dmp

    Filesize

    8KB