Malicious PDF — malware analysis report

Static analysis result for SHA-256 32c821417faab129…

MALICIOUS

PDF

42.8 KB Created: 2021-06-04 03:07:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 11149cbaca856bc2b8daf597dfc0585b SHA-1: 4da22339822f59930187804a2b910ee524030e26 SHA-256: 32c821417faab1295a89c8fde8dd93e2642744c90959765c4d93edc4ec09288d
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 0.9874

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.online/app/406889139/how-to-get-free-coins-on-coin-master-game-hack PDF link annotation
    • http://digilib.akbid-alsuaibah.ac.id/repository/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://digilib.akbid-alsuaibah.ac.id/repository/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • http://digilib.akbid-alsuaibah.ac.id/repository/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://digilib.akbid-alsuaibah.ac.id/repository/coin-master-free-spins-no-verification_GM406889139.pdfIn PDF document text
    • http://digilib.akbid-alsuaibah.ac.id/repository/coin-master-free-2021_GM406889139.pdfIn PDF document text
    • http://digilib.akbid-alsuaibah.ac.id/repository/coin-master-free-pin_GM406889139.pdfIn PDF document text
    • http://digilib.akbid-alsuaibah.ac.id/repository/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.akbid-alsuaibah.ac.id/repository/free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://digilib.akbid-alsuaibah.ac.id/repository/how-to-earn-free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.akbid-alsuaibah.ac.id/repository/coinmasterfree_GM406889139.pdfIn PDF document text
    • http://digilib.akbid-alsuaibah.ac.id/repository/real-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://digilib.akbid-alsuaibah.ac.id/repository/free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://digilib.akbid-alsuaibah.ac.id/repository/coin-master-free-spins-link-31-march-2021_GM406889139.pdfIn PDF document text
    • http://digilib.akbid-alsuaibah.ac.id/repository/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://digilib.akbid-alsuaibah.ac.id/repository/coin-master-hack-game-download_GM406889139.pdfIn PDF document text
    • http://digilib.akbid-alsuaibah.ac.id/repository/coin-master-heaven-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://digilib.akbid-alsuaibah.ac.id/repository/clean-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://digilib.akbid-alsuaibah.ac.id/repository/freespinandcoin-blogspot_GM406889139.pdfIn PDF document text
    • http://digilib.akbid-alsuaibah.ac.id/repository/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://digilib.akbid-alsuaibah.ac.id/repository/coin-master-free-spins-link-2021-hack_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
stream_004_off00004df4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DF4 24492 bytes
SHA-256: cb9f8e4307f5d9195133b600804c8c368550556ff315a38827688503550da177
font_01_sfnt_off000085f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85F5 17872 bytes
SHA-256: 51f02da227d0679d4a4cca1b372203100e5a9ff6587b3c267ccf786d3222cbcf

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