Analysis

  • max time kernel
    150s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    07-03-2024 18:38

General

  • Target

    2c23e348735e23bfa0c31760dadae7045a43fb5997e5b93e8bb155663e4652f9.exe

  • Size

    187KB

  • MD5

    4c8da92ecf868d4042cc5252d659925a

  • SHA1

    589db861e7216d9dad95c217cd09375066229da9

  • SHA256

    2c23e348735e23bfa0c31760dadae7045a43fb5997e5b93e8bb155663e4652f9

  • SHA512

    e9640761edff7ae479fc922f8dfa141daebc69244870ae5ef322c839e1fb5a893cc6d5c5ccdd189c4f2a34227e636d9c53658f740a48ff88f0794a0919b080ef

  • SSDEEP

    3072:rfIuzUdiSUSCu1TzRL1Cj1ZtQ52xu/zf1MXe74v+fiv9JzpX3:UugdigCuBz6ZtQ5guBMuFgJ

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2022

C2

http://kamsmad.com/tmp/index.php

http://souzhensil.ru/tmp/index.php

http://teplokub.com.ua/tmp/index.php

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: MapViewOfSection 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2c23e348735e23bfa0c31760dadae7045a43fb5997e5b93e8bb155663e4652f9.exe
    "C:\Users\Admin\AppData\Local\Temp\2c23e348735e23bfa0c31760dadae7045a43fb5997e5b93e8bb155663e4652f9.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:1312
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {2DE0CAA3-873E-4E5B-94E0-2B022EA1D50D} S-1-5-21-2297530677-1229052932-2803917579-1000:HKULBIBU\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2536
    • C:\Users\Admin\AppData\Roaming\wwvjcuv
      C:\Users\Admin\AppData\Roaming\wwvjcuv
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:2876

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    187KB

    MD5

    4c8da92ecf868d4042cc5252d659925a

    SHA1

    589db861e7216d9dad95c217cd09375066229da9

    SHA256

    2c23e348735e23bfa0c31760dadae7045a43fb5997e5b93e8bb155663e4652f9

    SHA512

    e9640761edff7ae479fc922f8dfa141daebc69244870ae5ef322c839e1fb5a893cc6d5c5ccdd189c4f2a34227e636d9c53658f740a48ff88f0794a0919b080ef

  • memory/1212-4-0x0000000003E40000-0x0000000003E56000-memory.dmp

    Filesize

    88KB

  • memory/1212-16-0x0000000002DC0000-0x0000000002DD6000-memory.dmp

    Filesize

    88KB

  • memory/1312-1-0x0000000002350000-0x0000000002450000-memory.dmp

    Filesize

    1024KB

  • memory/1312-2-0x0000000000220000-0x000000000022B000-memory.dmp

    Filesize

    44KB

  • memory/1312-3-0x0000000000400000-0x0000000001F06000-memory.dmp

    Filesize

    27.0MB

  • memory/1312-5-0x0000000000400000-0x0000000001F06000-memory.dmp

    Filesize

    27.0MB

  • memory/2876-14-0x00000000002B0000-0x00000000003B0000-memory.dmp

    Filesize

    1024KB

  • memory/2876-15-0x0000000000400000-0x0000000001F06000-memory.dmp

    Filesize

    27.0MB

  • memory/2876-17-0x0000000000400000-0x0000000001F06000-memory.dmp

    Filesize

    27.0MB