Malicious PDF — malware analysis report

Static analysis result for SHA-256 30f99a6b74e1f756…

MALICIOUS

PDF

41.9 KB Created: 2021-05-24 10:08:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3b43d6073e349dec0fa14f31460781f9 SHA-1: 0b482bf2998dbe72bc69713da52641b68ecc0356 SHA-256: 30f99a6b74e1f7564afcac487f8a75731d2acb2adf2663a83400eec51e267c39
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to malicious redirectors, masquerading as 'free generators' for popular games. The document body explicitly mentions 'Roblox Hack 2021' and includes a call to action to access a generator. The presence of these links and the lure indicate an attempt to redirect users to potentially malicious websites, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7527

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/roblox-hack-2021-game-hack In PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/how-to-get-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/coin-master-free-spins-and-coins-link-today_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/coin-master-apk-hack-35-8_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003419.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3419 28608 bytes
SHA-256: 6839f8dc6bb5d471b84d4c7ca60c2f9c0276f2e75cd60cba03221706aacb76b2
font_01_sfnt_off0000744a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x744A 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off0000815c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x815C 18584 bytes
SHA-256: 2941163c9806e22b58ea5552aa71059231a9f2c3bbffbca0ecd460ca17501cff

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