Analysis

  • max time kernel
    300s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    23/09/2023, 00:37

General

  • Target

    d776c69b12a9a00498f9a912cf1d888fe092c3eeb31b9736736607d3b1601c5f.exe

  • Size

    186KB

  • MD5

    f84d9531222b555aad876986d97c897c

  • SHA1

    5819b4fba849f0e021c5f007f911bd3f56b8bc2a

  • SHA256

    d776c69b12a9a00498f9a912cf1d888fe092c3eeb31b9736736607d3b1601c5f

  • SHA512

    4c30058d9ef4fd49880f73ec0a61da5da85640d6b6c6662b1fc4d5c2f9003d42f219bfc54d48eb5d0da30badafc0121f7428a6218104806b923258c3c83ceb31

  • SSDEEP

    3072:IBEm/XJIGXi/lwQ+RwfW3lBniuFGUzA370J0ga5V:liXJIQsB+Rwu3XnPUUM380P

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2022

C2

http://gudintas.at/tmp/

http://pik96.ru/tmp/

http://rosatiauto.com/tmp/

http://kingpirate.ru/tmp/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 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 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 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\d776c69b12a9a00498f9a912cf1d888fe092c3eeb31b9736736607d3b1601c5f.exe
    "C:\Users\Admin\AppData\Local\Temp\d776c69b12a9a00498f9a912cf1d888fe092c3eeb31b9736736607d3b1601c5f.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2408
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {3A6C3C67-931B-4F29-B277-5503DF772455} S-1-5-21-3513876443-2771975297-1923446376-1000:GPFFWLPI\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2516
    • C:\Users\Admin\AppData\Roaming\btdsubi
      C:\Users\Admin\AppData\Roaming\btdsubi
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:2484

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          186KB

          MD5

          f84d9531222b555aad876986d97c897c

          SHA1

          5819b4fba849f0e021c5f007f911bd3f56b8bc2a

          SHA256

          d776c69b12a9a00498f9a912cf1d888fe092c3eeb31b9736736607d3b1601c5f

          SHA512

          4c30058d9ef4fd49880f73ec0a61da5da85640d6b6c6662b1fc4d5c2f9003d42f219bfc54d48eb5d0da30badafc0121f7428a6218104806b923258c3c83ceb31

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

          Filesize

          186KB

          MD5

          f84d9531222b555aad876986d97c897c

          SHA1

          5819b4fba849f0e021c5f007f911bd3f56b8bc2a

          SHA256

          d776c69b12a9a00498f9a912cf1d888fe092c3eeb31b9736736607d3b1601c5f

          SHA512

          4c30058d9ef4fd49880f73ec0a61da5da85640d6b6c6662b1fc4d5c2f9003d42f219bfc54d48eb5d0da30badafc0121f7428a6218104806b923258c3c83ceb31

        • memory/1336-3-0x0000000002730000-0x0000000002746000-memory.dmp

          Filesize

          88KB

        • memory/1336-10-0x000007FEC3380000-0x000007FEC338A000-memory.dmp

          Filesize

          40KB

        • memory/1336-19-0x0000000002C40000-0x0000000002C56000-memory.dmp

          Filesize

          88KB

        • memory/1336-15-0x000007FEC3380000-0x000007FEC338A000-memory.dmp

          Filesize

          40KB

        • memory/1336-14-0x000007FEF6230000-0x000007FEF6373000-memory.dmp

          Filesize

          1.3MB

        • memory/1336-9-0x000007FEF6230000-0x000007FEF6373000-memory.dmp

          Filesize

          1.3MB

        • memory/2408-7-0x0000000000240000-0x0000000000249000-memory.dmp

          Filesize

          36KB

        • memory/2408-4-0x0000000000400000-0x000000000043C000-memory.dmp

          Filesize

          240KB

        • memory/2408-8-0x0000000000220000-0x0000000000235000-memory.dmp

          Filesize

          84KB

        • memory/2408-2-0x0000000000400000-0x000000000043C000-memory.dmp

          Filesize

          240KB

        • memory/2408-1-0x0000000000240000-0x0000000000249000-memory.dmp

          Filesize

          36KB

        • memory/2408-0-0x0000000000220000-0x0000000000235000-memory.dmp

          Filesize

          84KB

        • memory/2484-18-0x0000000000400000-0x000000000043C000-memory.dmp

          Filesize

          240KB

        • memory/2484-20-0x0000000000400000-0x000000000043C000-memory.dmp

          Filesize

          240KB