Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0d8a72e05a56bef…

MALICIOUS

PDF

49.0 KB Created: 2021-06-10 13:31:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: daac43634c5916e97ea2deb2d1506641 SHA-1: d7265256f967234e874b9843ede46297b1c680be SHA-256: c0d8a72e05a56bef452b223c8fd8e56a492931188ff550bd0a5e4516a144ba89
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a "free generator / game hack" which redirects to a malicious URL. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or scam attempt to redirect users to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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 https://netcdn.tw/app/431946152/how-to-get-free-robux-in-roblox-wasted-no-time-game-hack PDF link annotation
    • http://pustaka.bbppketindan.info/repository/minecraft-java-free-account_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-robux-site-that-works_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/200-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-cards-free_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/pokemon-go-free-qr-codes-2021_GM1094591345.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/free-coin-spin-daily-link-net_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/blox-pink-robux-free_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-hack-online-link_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/legit-coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-hack-xyz-apk-download_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-minecraft-windows-10-account_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/hackear-coin-master-sin-verificacion_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/tiktok-free-blue-tick_GM835599320.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/minecraft-java-edition-free-download_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005209.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5209 25796 bytes
SHA-256: 8bf93ab49a998de1707245c0f74cdc14f1e146975e8f75b8e413fbbf7bd17113
font_01_sfnt_off00008d32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D32 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off000099da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99DA 19336 bytes
SHA-256: d46daebb12e902508476ab1f7959ac185cb07174a930e780eafc72c0aa90d78f

Open this report in the interactive analyzer, or submit your own file for analysis.