Analysis

  • max time kernel
    151s
  • max time network
    124s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    26-01-2022 11:36

General

  • Target

    dd3f8b4b7cb85319017857db47816c5d.exe

  • Size

    333KB

  • MD5

    dd3f8b4b7cb85319017857db47816c5d

  • SHA1

    7ec8db38063c3f5e2e3091308f07a17ffce6ce1f

  • SHA256

    9ffb9893be116d0f629ed1df9a842600ac186839a75d200a56b3171150278f1a

  • SHA512

    1107d298618d8821aadae110dc187ebec8177dedfe750c597179e6d9ef7f24e626aba80495be50b00cc08cf939ca9569a6c814f67b6ad7e9337a2fad38f7eae6

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\dd3f8b4b7cb85319017857db47816c5d.exe
    "C:\Users\Admin\AppData\Local\Temp\dd3f8b4b7cb85319017857db47816c5d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1384
    • C:\Users\Admin\AppData\Local\Temp\dd3f8b4b7cb85319017857db47816c5d.exe
      "C:\Users\Admin\AppData\Local\Temp\dd3f8b4b7cb85319017857db47816c5d.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1028

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1028-116-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1028-117-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1384-115-0x0000000000790000-0x00000000007B9000-memory.dmp

    Filesize

    164KB

  • memory/3056-118-0x0000000000610000-0x0000000000626000-memory.dmp

    Filesize

    88KB