Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9cc4d8cdb3ac6c1…

MALICIOUS

PDF

34.3 KB Created: 2021-07-06 09:15:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: c3103959b2e58ce9ad8f491688f9121d SHA-1: ee4dbc0734952d249e217f6b4bef31dfd5fa4f9c SHA-256: f9cc4d8cdb3ac6c125b7fec4303835c8d66f155dc7c8eba994da988ced6bb852
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a lure for game hacks and free spins, directing users to a malicious URL. The embedded link and document body content strongly suggest a phishing or scam attempt to redirect users to potentially malicious websites. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/406889139/official-coin-master-free-spins-game-hack PDF link annotation
    • http://pustaka.bbppketindan.info/repository/roblox-bubble-gum-sim-free-pet-giveaway_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/boxing-simulator-2-roblox-free-double-weight-lifting_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/pokemon-brick-bronze-roblox-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/roblox40com-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-to-use-roblox-shirt-new_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-robux-no-hsck_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/tiktok-free-fans-2021_GM835599320.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/robloxian-roblox-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/all-links-for-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-get-free-robux-in-jail-breck_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/hack-coin-master-site-rssingcom_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-cheats-without-verification_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-get-free-robux-no-scam-no-survey_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-fast-card-codes-free_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-coins-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-extra-spins_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-robux-no-reward-zone-or-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-rubux-hack-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-free-spin-link-app_GM406889139.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_off00003121.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3121 22536 bytes
SHA-256: d08678fd1e3de4633cc321884abe30b56753c88230e567dc3c8d453ecfc1419a
font_01_sfnt_off0000639e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x639E 18248 bytes
SHA-256: e2af4311d6ae554e108bc57162be2fbf4f2b9d1fcb74cec0c85fa594686723eb