Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad4ccd1f2f23c1ee…

MALICIOUS

PDF

45.9 KB Created: 2021-06-13 16:00:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: d3e330a89b040fa2d7b30a1e001dd8e0 SHA-1: cc99d14d588e92694560b3d5eaaa03a2427bbf68 SHA-256: ad4ccd1f2f23c1eef75e596d74e19af7969f0ccb2446a4611d667971ed607ed5
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of offering game hacks and free currency for popular games like Roblox and Coin Master. It contains numerous links to external websites that likely host further malicious content or phishing pages. The ML classifier strongly indicated maliciousness, and the presence of game hack lures is a known tactic for distributing malware or conducting scams.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.co/app/431946152/how-to-hack-peoples-roblox-accounts-game-hack PDF link annotation
    • http://per-bittner.de/images/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://per-bittner.de/images/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://per-bittner.de/images/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://per-bittner.de/images/free-robux-giver-no-survey_GM431946152.pdfIn PDF document text
    • http://per-bittner.de/images/como-hackear-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://per-bittner.de/images/coin-master-daily-bonus-hack_GM406889139.pdfIn PDF document text
    • http://per-bittner.de/images/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • http://per-bittner.de/images/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://per-bittner.de/images/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • http://per-bittner.de/images/roblox-free-download_GM431946152.pdfIn PDF document text
    • http://per-bittner.de/images/mc-update_GM479516143.pdfIn PDF document text
    • http://per-bittner.de/images/password-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://per-bittner.de/images/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • http://per-bittner.de/images/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • http://per-bittner.de/images/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://per-bittner.de/images/cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • http://per-bittner.de/images/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://per-bittner.de/images/roblox-free-online-game_GM431946152.pdfIn PDF document text
    • http://per-bittner.de/images/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • http://per-bittner.de/images/free-minecraft-bedrock-server-hosting_GM479516143.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_off0000503b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x503B 27268 bytes
SHA-256: 94bc6a06b01713eb798561cc51dca942a14504cebc096d4f9040025744a69835
font_01_sfnt_off00008f03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F03 18920 bytes
SHA-256: cd7407ef9aef6c4c50b1fdf01e763fd2e22944ade267215dee183f168e7b87f5

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