Malicious PDF — malware analysis report

Static analysis result for SHA-256 d60dbe6a35a6b30d…

MALICIOUS

PDF

43.1 KB Created: 2021-05-20 23:11:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2d99ab67aba218b53699b8dd73de1e21 SHA-1: d78f1c2a554a91ee43d73657582553156f8648b4 SHA-256: d60dbe6a35a6b30db966d47de487245568926ac8dd9c0e5ed407b8ab787d15c8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links to external websites, including a primary link to 'netcdn.xyz' which is flagged as a malicious redirector. The document body also contains a call to action for a 'ROBLOX GENERATOR' and numerous other PDF links hosted on 'adravietnam.org', suggesting a phishing or malware distribution campaign. The presence of embedded URLs and the nature of the lures indicate a likely attempt to trick users into visiting malicious sites, potentially leading to further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9506

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-make-roblox-clothes-for-free-game-hack In PDF document text
    • http://adravietnam.org/images/how-to-get-minecraft-java-free_GM479516143.pdfIn PDF document text
    • http://adravietnam.org/images/robux-gainer_GM431946152.pdfIn PDF document text
    • http://www.adravietnam.org/images/links-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://adravietnam.org/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://adravietnam.org/images/how-to-get-free-spins-in-coin-master-2021_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
stream_002_off0000310a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x310A 37440 bytes
SHA-256: 5b7bcce2c9337549144d7190178c7ca134d2110669753ef7b409b1112ac3e26b
font_01_sfnt_off000085ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85AD 18976 bytes
SHA-256: 75869b94c2b17b25dac59f0b0f7f9ff270f85e9e7170da1a335b6396ed3bda83

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