Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-03-2024 15:38

General

  • Target

    bc2c52a3f341f8f93622247caf1851c3.exe

  • Size

    317KB

  • MD5

    bc2c52a3f341f8f93622247caf1851c3

  • SHA1

    f5350c12bf2e1efe8e28a47c317824fdf7ae77c4

  • SHA256

    dd1b37482a3895b21c34ce1b2062bd56d590f4e44dc0f61e9ad1e7685afdc405

  • SHA512

    e6e0c12ee3d3480d2ad1da02718ea159c0eebe497d15b47c31ece8206db7b6ffa90cebb41b3e578a7f2dbe1a844af8730fff428fba2b46829f7a82aec98aecc2

  • SSDEEP

    6144:zPWw0xrvZVKKonZoCvUmzC2oYymKcOEqCwvS9ywfnf85w:Cw0hXKKSqBmzCOAcBqCwvS9ywH8y

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\bc2c52a3f341f8f93622247caf1851c3.exe
    "C:\Users\Admin\AppData\Local\Temp\bc2c52a3f341f8f93622247caf1851c3.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2112
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2112 -s 368
      2⤵
      • Program crash
      PID:3476
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2112 -ip 2112
    1⤵
      PID:4020
    • C:\Users\Admin\AppData\Roaming\igdrhhd
      C:\Users\Admin\AppData\Roaming\igdrhhd
      1⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:4652
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4652 -s 368
        2⤵
        • Program crash
        PID:3200
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 4652 -ip 4652
      1⤵
        PID:4424

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

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

        Filesize

        317KB

        MD5

        bc2c52a3f341f8f93622247caf1851c3

        SHA1

        f5350c12bf2e1efe8e28a47c317824fdf7ae77c4

        SHA256

        dd1b37482a3895b21c34ce1b2062bd56d590f4e44dc0f61e9ad1e7685afdc405

        SHA512

        e6e0c12ee3d3480d2ad1da02718ea159c0eebe497d15b47c31ece8206db7b6ffa90cebb41b3e578a7f2dbe1a844af8730fff428fba2b46829f7a82aec98aecc2

      • memory/2112-1-0x0000000000AF0000-0x0000000000BF0000-memory.dmp

        Filesize

        1024KB

      • memory/2112-2-0x00000000001C0000-0x00000000001C9000-memory.dmp

        Filesize

        36KB

      • memory/2112-3-0x0000000000400000-0x0000000000906000-memory.dmp

        Filesize

        5.0MB

      • memory/2112-7-0x0000000000400000-0x0000000000906000-memory.dmp

        Filesize

        5.0MB

      • memory/3536-4-0x0000000002BD0000-0x0000000002BE6000-memory.dmp

        Filesize

        88KB

      • memory/3536-16-0x0000000000C40000-0x0000000000C56000-memory.dmp

        Filesize

        88KB

      • memory/4652-14-0x0000000000960000-0x0000000000A60000-memory.dmp

        Filesize

        1024KB

      • memory/4652-15-0x0000000000400000-0x0000000000906000-memory.dmp

        Filesize

        5.0MB

      • memory/4652-19-0x0000000000400000-0x0000000000906000-memory.dmp

        Filesize

        5.0MB