Analysis

  • max time kernel
    122s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    25-12-2024 02:43

General

  • Target

    a6ybp.exe

  • Size

    133KB

  • MD5

    5052c5edb614bae7449e4fe24466d312

  • SHA1

    ac891f7448c5b5bef1e1b0d66fb6a020245131ab

  • SHA256

    25f38d1847951f8cbf676cd97216c830462bb875c405f781ae053dd8fbfc83f8

  • SHA512

    c67abfee80001aa589cfc823be86a41ce8ca29bcd01baf57ce588c0ace6a918c650699b397a7baf6948b65cc97e899a43eae55cc8478c7057d2696419a2aef38

  • SSDEEP

    1536:h1i/R5w3LS++phVPt/4EPdHfXiZWOhVaXoz3ZGvFRLI4c1H35FwCUe0UgcRGx:inOLWhZPxSZbVaXVvFRL41H353U2NGx

Malware Config

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Smokeloader family
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a6ybp.exe
    "C:\Users\Admin\AppData\Local\Temp\a6ybp.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2400
    • C:\Users\Admin\AppData\Local\Temp\a6ybp.exe
      "C:\Users\Admin\AppData\Local\Temp\a6ybp.exe"
      2⤵
      • Loads dropped DLL
      PID:2772

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\D47F.tmp

    Filesize

    1.2MB

    MD5

    d124f55b9393c976963407dff51ffa79

    SHA1

    2c7bbedd79791bfb866898c85b504186db610b5d

    SHA256

    ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

    SHA512

    278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

  • memory/2400-3-0x0000000000220000-0x000000000022A000-memory.dmp

    Filesize

    40KB

  • memory/2400-10-0x0000000000400000-0x0000000005D5F000-memory.dmp

    Filesize

    89.4MB

  • memory/2772-5-0x0000000000400000-0x000000000040A000-memory.dmp

    Filesize

    40KB

  • memory/2772-2-0x0000000000400000-0x000000000040A000-memory.dmp

    Filesize

    40KB

  • memory/2772-1-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2772-8-0x0000000000400000-0x000000000040A000-memory.dmp

    Filesize

    40KB