Malicious PDF — malware analysis report

Static analysis result for SHA-256 68d5b87583b8a0a4…

MALICIOUS

PDF

46.6 KB Created: 2021-05-16 10:44:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: d82db5ddab8d90896ec655053cad2187 SHA-1: 555c67b20ccb24228b6a574ebd10417e46b0b18b SHA-256: 68d5b87583b8a0a4a6d2e1bc1e5aefea78d1c0d409509486796ed3209018de78
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to known malicious infrastructure, specifically promoting 'game hacks' or 'free generators'. The document body and heuristics indicate a lure for users to click these links, likely leading to further malicious content or downloads. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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.xyz/app/431946152/earn-robux-now-game-hack In PDF document text
    • http://pdapanache.com/images/roblox-ftw_GM431946152.pdfIn PDF document text
    • http://pdapanache.com/images/coin-master-get-free-cards_GM406889139.pdfIn PDF document text
    • http://pdapanache.com/images/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://pdapanache.com/images/free-coin-app_GM406889139.pdfIn PDF document text
    • http://pdapanache.com/images/earn-robux-online_GM431946152.pdfIn PDF document text
    • http://pdapanache.com/images/free-robux-games_GM431946152.pdfIn PDF document text
    • http://pdapanache.com/images/minecraft-logo-maker-free_GM479516143.pdfIn PDF document text
    • http://pdapanache.com/images/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • http://pdapanache.com/images/coin-master-free-spins-apk-2021_GM406889139.pdfIn PDF document text
    • http://pdapanache.com/images/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://pdapanache.com/images/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://pdapanache.com/images/roblox-verification_GM431946152.pdfIn PDF document text
    • http://pdapanache.com/images/haktuts-coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://pdapanache.com/images/rewards-robux_GM431946152.pdfIn PDF document text
    • http://pdapanache.com/images/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
    • http://pdapanache.com/images/can-i-hack-coin-master-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • http://pdapanache.com/images/xray-mod-minecraft-114_GM479516143.pdfIn PDF document text
    • http://pdapanache.com/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://pdapanache.com/images/coin-master-free-download-for-pc_GM406889139.pdfIn PDF document text
    • http://pdapanache.com/images/coin-master-free-spin-and-trading_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004851.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4851 27540 bytes
SHA-256: fe8ce2ac2e3f74789eced24247f2e3dc1366737ce37f76c52334752eecdd7470
font_01_sfnt_off000086c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86C1 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off000093d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93D2 18244 bytes
SHA-256: c4f4d96dd4ae320374aba47736520dcd557f712ab2f623cefa09a16c6934ef42

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