Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/04/2024, 14:39

General

  • Target

    e2c2b464a1d9a3c366c2bcb523b5a20b_JaffaCakes118.exe

  • Size

    150KB

  • MD5

    e2c2b464a1d9a3c366c2bcb523b5a20b

  • SHA1

    273341deb43de67a9274482a2a0397c45c0aff5c

  • SHA256

    8c6e8a02877680a2b503cef0b068b452221f95e68f9131a59421ca95c4339eb2

  • SHA512

    53e56d9190d7c2a3f2125c11d75f163ec2d2c975ead33ce1dd189ae8432494065daa6d01a21bcfda7014903fc4b84995ac667cb82fc7213b24a40386c91a3dd5

  • SSDEEP

    1536:FcbqjNeNMpj0E6pi9e3jHcUYjjf2mqwHwRad/Rt5V6+jE3XzABFnLFBMK48E:wuX9e3TmjjfXfjd/RtCHzgFnLmF

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://readinglistforaugust1.xyz/

http://readinglistforaugust2.xyz/

http://readinglistforaugust3.xyz/

http://readinglistforaugust4.xyz/

http://readinglistforaugust5.xyz/

http://readinglistforaugust6.xyz/

http://readinglistforaugust7.xyz/

http://readinglistforaugust8.xyz/

http://readinglistforaugust9.xyz/

http://readinglistforaugust10.xyz/

http://readinglistforaugust1.site/

http://readinglistforaugust2.site/

http://readinglistforaugust3.site/

http://readinglistforaugust4.site/

http://readinglistforaugust5.site/

http://readinglistforaugust6.site/

http://readinglistforaugust7.site/

http://readinglistforaugust8.site/

http://readinglistforaugust9.site/

http://readinglistforaugust10.site/

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: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of UnmapMainImage 1 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\e2c2b464a1d9a3c366c2bcb523b5a20b_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e2c2b464a1d9a3c366c2bcb523b5a20b_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2948
    • C:\Users\Admin\AppData\Local\Temp\e2c2b464a1d9a3c366c2bcb523b5a20b_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\e2c2b464a1d9a3c366c2bcb523b5a20b_JaffaCakes118.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:4400
  • C:\Users\Admin\AppData\Roaming\cisegsr
    C:\Users\Admin\AppData\Roaming\cisegsr
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3304
    • C:\Users\Admin\AppData\Roaming\cisegsr
      C:\Users\Admin\AppData\Roaming\cisegsr
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:3980

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          150KB

          MD5

          e2c2b464a1d9a3c366c2bcb523b5a20b

          SHA1

          273341deb43de67a9274482a2a0397c45c0aff5c

          SHA256

          8c6e8a02877680a2b503cef0b068b452221f95e68f9131a59421ca95c4339eb2

          SHA512

          53e56d9190d7c2a3f2125c11d75f163ec2d2c975ead33ce1dd189ae8432494065daa6d01a21bcfda7014903fc4b84995ac667cb82fc7213b24a40386c91a3dd5

        • memory/2948-1-0x0000000002E70000-0x0000000002F70000-memory.dmp

          Filesize

          1024KB

        • memory/2948-2-0x0000000002E60000-0x0000000002E6A000-memory.dmp

          Filesize

          40KB

        • memory/3304-16-0x0000000002E40000-0x0000000002F40000-memory.dmp

          Filesize

          1024KB

        • memory/3376-5-0x0000000002910000-0x0000000002926000-memory.dmp

          Filesize

          88KB

        • memory/3376-19-0x0000000002940000-0x0000000002956000-memory.dmp

          Filesize

          88KB

        • memory/3980-22-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/4400-3-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/4400-4-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/4400-6-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB