Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c01ce4368690a03…

MALICIOUS

PDF

45.1 KB Created: 2021-06-04 01:08:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: bf65f7297967b889ed3b4a84bc95363f SHA-1: d2156d3ecbbcbff35f5521983b8b7ab82ef5ab72 SHA-256: 0c01ce4368690a03df82d76302a24797826e45760af00785e5bf67b9b8eb0d21
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 0.9865

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-play-coin-master-game-hack PDF link annotation
    • http://perpus.masda.ac.id/repository/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/coin-master-club-hack_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-spin-coin-master-twitter_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/minecraft-mac-free_GM479516143.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/ios-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/download-hack-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/coin-master-hack-spin_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/daily-free-spins-coin-master-heaven_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/free-download-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-spin-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/coin-master-cards-free-cards_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000051c1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51C1 24892 bytes
SHA-256: c1b8ee596b7412f9d44d3b1ec13078b2567bad74794e1f583654d1f56fee4b51
font_01_sfnt_off00008b5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B5A 19028 bytes
SHA-256: 2aa98b70aa1dd28770ae481576ee026732ccb6206283316454f4833fdb68fe0d

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