Analysis

  • max time kernel
    300s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    22/09/2023, 04:16

General

  • Target

    3c2672bb3dc91360f4ddeeb7d36db34354eab8624bff04430649d5b794b0afd1.exe

  • Size

    294KB

  • MD5

    a429b1cad13b585f8ed0b211cf58c8b1

  • SHA1

    831989747894654676a451e45caad4087b449d43

  • SHA256

    3c2672bb3dc91360f4ddeeb7d36db34354eab8624bff04430649d5b794b0afd1

  • SHA512

    cff50434ba337280c8d66bb53a3df41499bed74a651fd8d6947fb2c091e25d72df0e10ae4b1a64b604bd30751bd128cdc4d618623dabc7421a30845345093045

  • SSDEEP

    6144:PIcpSUbxJ7vc+lC9BmgXotRTO76Jo3g8Z:PIc4KxJ7vpzptOmWQ8

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 WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3c2672bb3dc91360f4ddeeb7d36db34354eab8624bff04430649d5b794b0afd1.exe
    "C:\Users\Admin\AppData\Local\Temp\3c2672bb3dc91360f4ddeeb7d36db34354eab8624bff04430649d5b794b0afd1.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2404
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {75E7191E-748E-45B1-9D56-113F444C9D15} S-1-5-21-3849525425-30183055-657688904-1000:KGPMNUDG\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2520
    • C:\Users\Admin\AppData\Roaming\sbcvtwh
      C:\Users\Admin\AppData\Roaming\sbcvtwh
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:2108

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          294KB

          MD5

          a429b1cad13b585f8ed0b211cf58c8b1

          SHA1

          831989747894654676a451e45caad4087b449d43

          SHA256

          3c2672bb3dc91360f4ddeeb7d36db34354eab8624bff04430649d5b794b0afd1

          SHA512

          cff50434ba337280c8d66bb53a3df41499bed74a651fd8d6947fb2c091e25d72df0e10ae4b1a64b604bd30751bd128cdc4d618623dabc7421a30845345093045

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

          Filesize

          294KB

          MD5

          a429b1cad13b585f8ed0b211cf58c8b1

          SHA1

          831989747894654676a451e45caad4087b449d43

          SHA256

          3c2672bb3dc91360f4ddeeb7d36db34354eab8624bff04430649d5b794b0afd1

          SHA512

          cff50434ba337280c8d66bb53a3df41499bed74a651fd8d6947fb2c091e25d72df0e10ae4b1a64b604bd30751bd128cdc4d618623dabc7421a30845345093045

        • memory/1236-4-0x0000000002A10000-0x0000000002A26000-memory.dmp

          Filesize

          88KB

        • memory/1236-16-0x0000000002BA0000-0x0000000002BB6000-memory.dmp

          Filesize

          88KB

        • memory/2108-14-0x0000000000800000-0x0000000000900000-memory.dmp

          Filesize

          1024KB

        • memory/2108-15-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/2108-17-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/2404-1-0x0000000000B60000-0x0000000000C60000-memory.dmp

          Filesize

          1024KB

        • memory/2404-2-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB

        • memory/2404-3-0x0000000000220000-0x0000000000229000-memory.dmp

          Filesize

          36KB

        • memory/2404-5-0x0000000000400000-0x0000000000717000-memory.dmp

          Filesize

          3.1MB