Malicious PDF — malware analysis report

Static analysis result for SHA-256 25df3db99c014369…

MALICIOUS

PDF

37.0 KB Created: 2021-05-20 18:11:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 878a4dd57ebc6a675b39d4c7c4813cd8 SHA-1: 7c07a14852736023cc5fb900a851a674a9dd1e20 SHA-256: 25df3db99c014369e0714fc5a35cbf88bde0020801be86a4d37158e24e66c242
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one identified as a malicious redirector, leading to a 'game hack' lure. The document body explicitly mentions 'How To Hack Someones Roblox Account' and provides a call to action to access a generator. While no scripts were extracted, the presence of malicious links and the lure content strongly suggest an attempt to trick users into downloading malware or visiting further compromised sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/how-to-hack-someones-roblox-account-game-hack In PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/how-to-get-stuff-that-cost-coins-free-mpe-master_GM406889139.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/free-executors-for-roblox_GM431946152.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/coin-master-hack-apk-android-1_GM406889139.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_off00003421.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3421 26460 bytes
SHA-256: 5fda9530802efea756190d9b327ca8426a4baa68c3e54f2dd2fea70d0cc6a7f8
font_01_sfnt_off00006d9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D9E 18852 bytes
SHA-256: 030760a2b9f78489f4f2527f4aa1c5c01c299c9e8e159a1c649dae053cbb598d

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