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Analysis

  • max time kernel
    150s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    17/04/2024, 14:47

General

  • Target

    b4d9bc9471648ef8d072e524b4c6e3f5793e29b663bc85a9809912e7fad320c2.exe

  • Size

    234KB

  • MD5

    ed0c899ce676b4f803a842b58805b16e

  • SHA1

    6de3ccba1d1cfa0a9825787ce860201367980b43

  • SHA256

    b4d9bc9471648ef8d072e524b4c6e3f5793e29b663bc85a9809912e7fad320c2

  • SHA512

    fd997ec5291062aea0c473dbdfe412c150296fc7794b8b9a77d3097726e2a6abc2af87d9d9eb1c12b2cf7f3420eaab49a85b387e8fe103381e310d82969eedf9

  • SSDEEP

    3072:MPh8al1TPcpuOmohvNAJIP1jkxKJoMazKzu2Zoib2LhYt2QeEN4I9jXO9ZJwVQk:Oh11EjhvNPhJo/ezTbrWESIxOTF

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://selebration17io.io/index.php

http://vacantion18ffeu.cc/index.php

http://valarioulinity1.net/index.php

http://buriatiarutuhuob.net/index.php

http://cassiosssionunu.me/index.php

http://sulugilioiu19.net/index.php

http://goodfooggooftool.net/index.php

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 3 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 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b4d9bc9471648ef8d072e524b4c6e3f5793e29b663bc85a9809912e7fad320c2.exe
    "C:\Users\Admin\AppData\Local\Temp\b4d9bc9471648ef8d072e524b4c6e3f5793e29b663bc85a9809912e7fad320c2.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:1632
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {18CC98E3-CA4E-4623-91BB-CA6ABD06D883} S-1-5-21-3627615824-4061627003-3019543961-1000:SCFGBRBT\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2996
    • C:\Users\Admin\AppData\Roaming\fbigcej
      C:\Users\Admin\AppData\Roaming\fbigcej
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:2636
  • C:\Users\Admin\AppData\Local\Temp\C581.exe
    C:\Users\Admin\AppData\Local\Temp\C581.exe
    1⤵
    • Executes dropped EXE
    PID:2600
  • C:\Users\Admin\AppData\Local\Temp\C794.exe
    C:\Users\Admin\AppData\Local\Temp\C794.exe
    1⤵
    • Executes dropped EXE
    PID:2468

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\C581.exe

    Filesize

    5.0MB

    MD5

    4871b0cc9f2c5d9831805ce8dbf3e51c

    SHA1

    15aa462a7ceba6c033064a56fa9984aa7ec15e0a

    SHA256

    e8b3976718b6a4a2c2c8bbe91ef6830876275ccbf78a72e8d1816328e4e627eb

    SHA512

    73532e6febf109aa489858ffc989bb69fdeefe8ade30261ecc9e9635e390714e77a70ca0c8ab3bc836c5318e2ec22dba1a063144fce23cbfd0dbd0b8400d0e6b

  • C:\Users\Admin\AppData\Local\Temp\C794.exe

    Filesize

    513KB

    MD5

    982035bc968af21d8078f6f11d420317

    SHA1

    036d697eb600cc0c2481b112f4475de42ca389c6

    SHA256

    5164258993a4db297eafcd03cadafb054a9fa9bae024ea0e047917a664c5c1b0

    SHA512

    bd3bedd6d1c93cec19257e5bb0b994790f9d08b9f76092cd79a3a558afc884a08c6250ef1889d4eb7a6c1a6f555d00a1a48108a63072007dc9d802b91cc24055

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

    Filesize

    234KB

    MD5

    ed0c899ce676b4f803a842b58805b16e

    SHA1

    6de3ccba1d1cfa0a9825787ce860201367980b43

    SHA256

    b4d9bc9471648ef8d072e524b4c6e3f5793e29b663bc85a9809912e7fad320c2

    SHA512

    fd997ec5291062aea0c473dbdfe412c150296fc7794b8b9a77d3097726e2a6abc2af87d9d9eb1c12b2cf7f3420eaab49a85b387e8fe103381e310d82969eedf9

  • memory/1380-16-0x0000000003CB0000-0x0000000003CC6000-memory.dmp

    Filesize

    88KB

  • memory/1380-4-0x0000000002DE0000-0x0000000002DF6000-memory.dmp

    Filesize

    88KB

  • memory/1632-5-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/1632-1-0x0000000000550000-0x0000000000650000-memory.dmp

    Filesize

    1024KB

  • memory/1632-3-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/1632-2-0x0000000000220000-0x000000000022B000-memory.dmp

    Filesize

    44KB

  • memory/2468-31-0x0000000000010000-0x0000000000096000-memory.dmp

    Filesize

    536KB

  • memory/2468-34-0x0000000000010000-0x0000000000096000-memory.dmp

    Filesize

    536KB

  • memory/2636-14-0x00000000004F0000-0x00000000005F0000-memory.dmp

    Filesize

    1024KB

  • memory/2636-15-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2636-17-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB