Analysis

  • max time kernel
    110s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/01/2024, 04:19

General

  • Target

    716e808961c26085303b90cedec7ae17.exe

  • Size

    147KB

  • MD5

    716e808961c26085303b90cedec7ae17

  • SHA1

    9d4c5dc49c0d24e244090f38a87af186163fcd14

  • SHA256

    4564475353ab3f0d5e9200009b3e8f0ab950dd140720a8ac3ecd054b80b9cf8f

  • SHA512

    57f0ae8d7dba69f0464e92cd206098a55c31e271204fdf6fd812c90fcbadb116df79b2ca26add306208ffbff768871c659e28d81b79f8a26d5220d5a86dc05f1

  • SSDEEP

    3072:HpHSh0hXk6HfgLp+1iReblGYeazgFnLmx:1ShP6H4d+5JeYgFnL

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2020

C2

http://aucmoney.com/upload/

http://thegymmum.com/upload/

http://atvcampingtrips.com/upload/

http://kuapakualaman.com/upload/

http://renatazarazua.com/upload/

http://nasufmutlu.com/upload/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Program crash 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 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\716e808961c26085303b90cedec7ae17.exe
    "C:\Users\Admin\AppData\Local\Temp\716e808961c26085303b90cedec7ae17.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2304
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2304 -s 368
      2⤵
      • Program crash
      PID:4412
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2304 -ip 2304
    1⤵
      PID:3044
    • C:\Users\Admin\AppData\Roaming\bjjggas
      C:\Users\Admin\AppData\Roaming\bjjggas
      1⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:3624
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3624 -s 372
        2⤵
        • Program crash
        PID:736
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 3624 -ip 3624
      1⤵
        PID:1096

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

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

              Filesize

              147KB

              MD5

              716e808961c26085303b90cedec7ae17

              SHA1

              9d4c5dc49c0d24e244090f38a87af186163fcd14

              SHA256

              4564475353ab3f0d5e9200009b3e8f0ab950dd140720a8ac3ecd054b80b9cf8f

              SHA512

              57f0ae8d7dba69f0464e92cd206098a55c31e271204fdf6fd812c90fcbadb116df79b2ca26add306208ffbff768871c659e28d81b79f8a26d5220d5a86dc05f1

            • memory/2304-2-0x0000000002F60000-0x0000000002F69000-memory.dmp

              Filesize

              36KB

            • memory/2304-1-0x0000000002F90000-0x0000000003090000-memory.dmp

              Filesize

              1024KB

            • memory/2304-3-0x0000000000400000-0x0000000002CB4000-memory.dmp

              Filesize

              40.7MB

            • memory/2304-7-0x0000000000400000-0x0000000002CB4000-memory.dmp

              Filesize

              40.7MB

            • memory/3432-4-0x0000000000830000-0x0000000000846000-memory.dmp

              Filesize

              88KB

            • memory/3432-16-0x0000000002920000-0x0000000002936000-memory.dmp

              Filesize

              88KB

            • memory/3624-14-0x0000000003000000-0x0000000003100000-memory.dmp

              Filesize

              1024KB

            • memory/3624-15-0x0000000000400000-0x0000000002CB4000-memory.dmp

              Filesize

              40.7MB

            • memory/3624-19-0x0000000000400000-0x0000000002CB4000-memory.dmp

              Filesize

              40.7MB