Analysis

  • max time kernel
    150s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    04/03/2024, 04:13

General

  • Target

    b1319199a0b2ffbce63d2733f9e1553a.exe

  • Size

    328KB

  • MD5

    b1319199a0b2ffbce63d2733f9e1553a

  • SHA1

    a5be805f7ad6cbb4330a5c63b5621af667060fe0

  • SHA256

    703cd697f305a6d7568d3cdc517fede7c6a8947c9304cf812a133ed53753dff4

  • SHA512

    eb42cb690b2c18580170a5d66d10510f7c282d317d0752d0177d6c0cd1ac40e44c1349544e778bc78f5b1dcc34d26a9b86e8ccf38e4355f4ac505e6038e55527

  • SSDEEP

    6144:MIxvu15nsVFKlDg24H0qRZL0MdJydHmr1NEDmGFUs6Hdk72Rq:zG5niwDSHtZgMT0Ha1BGFA9m2R

Malware Config

Extracted

Family

smokeloader

Botnet

0108

Extracted

Family

smokeloader

Version

2020

C2

http://readinglistforjuly1.xyz/

http://readinglistforjuly2.xyz/

http://readinglistforjuly3.xyz/

http://readinglistforjuly4.xyz/

http://readinglistforjuly5.xyz/

http://readinglistforjuly6.xyz/

http://readinglistforjuly7.xyz/

http://readinglistforjuly8.xyz/

http://readinglistforjuly9.xyz/

http://readinglistforjuly10.xyz/

http://readinglistforjuly1.site/

http://readinglistforjuly2.site/

http://readinglistforjuly3.site/

http://readinglistforjuly4.site/

http://readinglistforjuly5.site/

http://readinglistforjuly6.site/

http://readinglistforjuly7.site/

http://readinglistforjuly8.site/

http://readinglistforjuly9.site/

http://readinglistforjuly10.site/

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: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 7 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\b1319199a0b2ffbce63d2733f9e1553a.exe
    "C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1280
    • C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe
      "C:\Users\Admin\AppData\Local\Temp\b1319199a0b2ffbce63d2733f9e1553a.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2700

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1272-7-0x0000000001DA0000-0x0000000001DB6000-memory.dmp

          Filesize

          88KB

        • memory/1280-2-0x0000000000600000-0x0000000000700000-memory.dmp

          Filesize

          1024KB

        • memory/1280-4-0x0000000000220000-0x000000000022A000-memory.dmp

          Filesize

          40KB

        • memory/2700-1-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2700-5-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/2700-6-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/2700-8-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB