Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-1703_x64
  • resource
    win10-20230915-en
  • resource tags

    arch:x64arch:x86image:win10-20230915-enlocale:en-usos:windows10-1703-x64system
  • submitted
    23/09/2023, 16:48

General

  • Target

    fbf7afb2ded5b12702f92f5c3620486e19b6d3a15b8703d8cf80b8d30a55b691.exe

  • Size

    321KB

  • MD5

    14b3ae8430e975d51a5452484a3bcfb5

  • SHA1

    4b1e785d83d7b3737c59c4ee81f7ae006792596d

  • SHA256

    fbf7afb2ded5b12702f92f5c3620486e19b6d3a15b8703d8cf80b8d30a55b691

  • SHA512

    7e0ae58ea2b6f5261823930b973e8855dfab7c226484dd03da0a1604a39cc2e05df98624df4cc6dbc533df191af59510a0f2804986cb909f32e62b5d5db71068

  • SSDEEP

    3072:SJHz/qhJ3Xkbm2RfN90YZSOcM3PwFF2SC4K+7LXoUSgfkfLcrtJ4B:oHzSh9XkbjfX0YEm4FvC4K27oUtkD

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

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
  • Executes dropped EXE 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 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\fbf7afb2ded5b12702f92f5c3620486e19b6d3a15b8703d8cf80b8d30a55b691.exe
    "C:\Users\Admin\AppData\Local\Temp\fbf7afb2ded5b12702f92f5c3620486e19b6d3a15b8703d8cf80b8d30a55b691.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:916
    • C:\Users\Admin\AppData\Local\Temp\fbf7afb2ded5b12702f92f5c3620486e19b6d3a15b8703d8cf80b8d30a55b691.exe
      "C:\Users\Admin\AppData\Local\Temp\fbf7afb2ded5b12702f92f5c3620486e19b6d3a15b8703d8cf80b8d30a55b691.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2636
  • C:\Users\Admin\AppData\Roaming\sdecveg
    C:\Users\Admin\AppData\Roaming\sdecveg
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3952
    • C:\Users\Admin\AppData\Roaming\sdecveg
      C:\Users\Admin\AppData\Roaming\sdecveg
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:4436

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Roaming\sdecveg

          Filesize

          321KB

          MD5

          14b3ae8430e975d51a5452484a3bcfb5

          SHA1

          4b1e785d83d7b3737c59c4ee81f7ae006792596d

          SHA256

          fbf7afb2ded5b12702f92f5c3620486e19b6d3a15b8703d8cf80b8d30a55b691

          SHA512

          7e0ae58ea2b6f5261823930b973e8855dfab7c226484dd03da0a1604a39cc2e05df98624df4cc6dbc533df191af59510a0f2804986cb909f32e62b5d5db71068

        • C:\Users\Admin\AppData\Roaming\sdecveg

          Filesize

          321KB

          MD5

          14b3ae8430e975d51a5452484a3bcfb5

          SHA1

          4b1e785d83d7b3737c59c4ee81f7ae006792596d

          SHA256

          fbf7afb2ded5b12702f92f5c3620486e19b6d3a15b8703d8cf80b8d30a55b691

          SHA512

          7e0ae58ea2b6f5261823930b973e8855dfab7c226484dd03da0a1604a39cc2e05df98624df4cc6dbc533df191af59510a0f2804986cb909f32e62b5d5db71068

        • C:\Users\Admin\AppData\Roaming\sdecveg

          Filesize

          321KB

          MD5

          14b3ae8430e975d51a5452484a3bcfb5

          SHA1

          4b1e785d83d7b3737c59c4ee81f7ae006792596d

          SHA256

          fbf7afb2ded5b12702f92f5c3620486e19b6d3a15b8703d8cf80b8d30a55b691

          SHA512

          7e0ae58ea2b6f5261823930b973e8855dfab7c226484dd03da0a1604a39cc2e05df98624df4cc6dbc533df191af59510a0f2804986cb909f32e62b5d5db71068

        • memory/916-2-0x00000000026F0000-0x00000000026F9000-memory.dmp

          Filesize

          36KB

        • memory/916-1-0x0000000002750000-0x0000000002850000-memory.dmp

          Filesize

          1024KB

        • memory/2636-4-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/2636-6-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/2636-3-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/3296-5-0x0000000001450000-0x0000000001466000-memory.dmp

          Filesize

          88KB

        • memory/3296-20-0x0000000001720000-0x0000000001736000-memory.dmp

          Filesize

          88KB

        • memory/3952-16-0x0000000002700000-0x0000000002800000-memory.dmp

          Filesize

          1024KB

        • memory/3952-25-0x0000000002700000-0x0000000002800000-memory.dmp

          Filesize

          1024KB

        • memory/4436-19-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/4436-23-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB