Malicious PDF — malware analysis report

Static analysis result for SHA-256 bee83431d12bc98c…

MALICIOUS

PDF

39.5 KB Created: 2021-05-20 17:09:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 198fa91fc7f76506105ad92c1330d9ff SHA-1: a24cc092eca2f41f41c32cde44a0b9efb4203fa6 SHA-256: bee83431d12bc98c105d5f0deaf3d6fc4248e453567f563637b6efe9115132b2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generators' and 'game hacks' for popular games. The document body and heuristics indicate a lure to a malicious redirector, likely to download further malware or phish for credentials. No scripts were extracted, but the embedded URLs and redirector heuristics strongly suggest a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8068

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/free-shirt-templates-roblox-game-hack In PDF document text
    • http://e-learning.mtsn7kediri.sch.id/__statics/gudangsoal/files/coins-master_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn7kediri.sch.id/__statics/gudangsoal/files/coinmaster-blogspot_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn7kediri.sch.id/__statics/gudangsoal/files/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn7kediri.sch.id/__statics/gudangsoal/files/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn7kediri.sch.id/__statics/gudangsoal/files/roblox-sexually-abused_GM431946152.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_off00003270.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3270 24444 bytes
SHA-256: b9497715f4748c48c3c02c956a0bbb783a5c57921cd888555e4cbc37b8e2880a
font_01_sfnt_off00006a2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A2E 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off000076d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76D5 19000 bytes
SHA-256: 1d157663e44f707a78bf4c363a5a8b50c98b0fefede0b35a380be154b48f2d79

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