Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2ded8cad52bf15c…

MALICIOUS

PDF

34.8 KB Created: 2021-07-05 18:40:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: edc43d1aff37882d418d2d261e0ff995 SHA-1: 3ea76dec1bbfc8c6863e8d71004b984655987b75 SHA-256: b2ded8cad52bf15c8f472c6f6aa86a597256e8d6c163b1800503daf02930f4f3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure for free game currency and hacks, directing users to a known malicious redirector. The document body and embedded URLs strongly suggest a phishing or scam attempt to trick users into visiting potentially harmful sites. While no scripts were explicitly extracted, the nature of the lures and the presence of multiple redirector links indicate a high likelihood of further malicious activity.

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/406889139/coin-master-apk-free-download-game-hack In PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-get-free-robux-2021-youtube_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/coin-master-free-spin-2912-2021_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-teleport-yourself-in-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/minecraft-launcher-free_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-robux-accounts_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/minecraft_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/download-free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/apk-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/how-to-earn-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/hack-the-game-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/coin-master-free-spin-today-2021_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/make-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-hack-roblox-and-get-infinite-health-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-get-free-builders-club-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-hack-days_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-new-shoot-through-walls-hack-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/strawberry-roblox-hack_GM431946152.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
font_00_sfnt_off000031f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31F3 22328 bytes
SHA-256: bafa6dbb9fd2124fa91667cff2bda7685ccc5f80493914f1a2540a2600f4d677
font_01_sfnt_off0000638a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x638A 18924 bytes
SHA-256: 80f479f2842c7b63956049059bb64ea40ae3b1cb380eebc5b1a49b0c67b59a51