Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c9908a5769cefe3…

MALICIOUS

PDF

34.5 KB Created: 2021-05-23 07:08:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 4a558b8755893de6116158b3e4efa1c0 SHA-1: 1f0553a39f15fa680ac8889d61aa1dbda5a51f8a SHA-256: 4c9908a5769cefe3eaaf75b632cf04a1a4f589fbf3cd20e48c4bc4348c887d5e
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and websites offering 'free generators' or 'game hacks'. The document body reinforces this lure, attempting to trick users into clicking these links. The primary malicious URL identified is https://netcdn.xyz/app/835599320/how-to-get-tiktok-famous-free-game-hack, which is repeatedly referenced. The file's structure and content strongly suggest a phishing or scam attempt designed to lead users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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.
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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/835599320/how-to-get-tiktok-famous-free-game-hack In PDF document text
    • http://precisionheavyhaul.com/images/roblox-account-hacker-tool_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/tryrbx-site-free-robux_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/roblox-mobile-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
stream_002_off000030ee.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30EE 23376 bytes
SHA-256: 7939b05d7fc9bf149e803c565488dbba189bcc137d9bc19aa7742e341cfd9c9d
font_01_sfnt_off000065ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65CA 18248 bytes
SHA-256: 9d8c9ff8f23476e9e897d50e05ba1c89fe9a64794c9c08e4c2e4cb1c87253222

Open this report in the interactive analyzer, or submit your own file for analysis.