Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b49ab0cb7685f85…

MALICIOUS

PDF

31.9 KB Created: 2021-07-19 11:33:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: d1a47df54059a873ffac41b4f1360b54 SHA-1: 4949a511f2abb5f460739d01ba367a31fd91cbf1 SHA-256: 6b49ab0cb7685f85fe722c30be486bb521c91ddf26c9b3566b5b1557a6bfd69e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/479516143/minecraft-hacks-game-hack PDF link annotation
    • https://domoticaaplicada.com/images/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • https://domoticaaplicada.com/images/minecraft-realms-free-trial_GM479516143.pdfIn PDF document text
    • https://domoticaaplicada.com/images/robux-free-online_GM431946152.pdfIn PDF document text
    • https://domoticaaplicada.com/images/minecraft-pe-free-download-ios-no-jailbreak_GM479516143.pdfIn PDF document text
    • https://domoticaaplicada.com/images/free-modded-minecraft-server_GM479516143.pdfIn PDF document text
    • https://domoticaaplicada.com/images/free-tiktok-fans-no-human-verification-or-downloading-apps_GM835599320.pdfIn PDF document text
    • https://domoticaaplicada.com/images/how-to-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://domoticaaplicada.com/images/free-tiktok-fans-no-verification_GM835599320.pdfIn PDF document text
    • https://domoticaaplicada.com/images/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • https://domoticaaplicada.com/images/freer-tiktok_GM835599320.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ad0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AD0 22356 bytes
SHA-256: e3a0a4249202ebba5d49f91e6e29f87c7c15fd32c12ae341ce4841aadea92430
font_01_sfnt_off00005c70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C70 17740 bytes
SHA-256: 0307ae1fdf286ae380d36e270ef5c992f348f7a5470d5d5ce449782a5f21d577

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