Malicious PDF — malware analysis report

Static analysis result for SHA-256 806a7eb2d22907fc…

MALICIOUS

PDF

35.5 KB Created: 2021-07-05 22:14:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 23f552ac453c3652c89be12a2763d84c SHA-1: 6ac908012754cf7d537e098ed88e02d8d0ff1fc8 SHA-256: 806a7eb2d22907fc6e29309cc4be74403fe64b022984a20cd955b4efa1d5b050
160 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 known malicious infrastructure. The document body and embedded URLs reinforce this theme, suggesting a phishing attempt to trick users into visiting malicious sites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/431946152/how-much-robux-can-you-get-with-1-million-dollars-game-hack In PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/coin-master-free-spin-27_GM406889139.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/roblox-free-admin-script_GM431946152.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/how-to-get-free-robux-on-apple-ipad-2021_GM431946152.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/blox-pink-robux-free_GM431946152.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/roblox-microsoft-rewards_GM431946152.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/roblox-but_GM431946152.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/coin-free-spin_GM406889139.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/coin-master-unlimited-spin-and-coin-hack_GM406889139.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/free-auto-clicker-roblox-mac_GM431946152.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/play-coin-master-online-free_GM406889139.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/stock-speed-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/coin-master-hack-apk-july-29_GM406889139.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/lazy-blocks-com-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/coin-master-game-hacking-tricks_GM406889139.pdfIn PDF document text
    • http://perpus.janabadra.ac.id/otomasi/repository/coin-master-free-spin-ml_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
font_00_sfnt_off000031fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31FA 22116 bytes
SHA-256: b62eb7c4dbc66495e97d7bf832e46f99939b7984d813162e0076606334673ab6
font_01_sfnt_off000062ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62CA 20008 bytes
SHA-256: 723916b35449ed955ae15cf7f12f067bf8ea2f6a06f44dabbda2bc1e5f6077fd

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