Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdba146cc74c15d1…

MALICIOUS

PDF

43.5 KB Created: 2021-05-24 05:43:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 882aa0804c3b3465cb7246d5af881304 SHA-1: 110b51920514c923b05abef8f8c65660327f7e47 SHA-256: bdba146cc74c15d11ab732f52e550530be498aeb7baaf77f169e5167b528436c
130 Risk Score

Malware Insights

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

The PDF document contains multiple embedded links that redirect to a known malicious URL, masquerading as a 'free generator' for game currency. The document body and heuristic firings indicate a lure for users to click these links, likely to download further malware or redirect to phishing sites. No scripts were extracted, but the presence of malicious redirectors and the lure suggest a common phishing or malware distribution tactic.

Machine Learning

  • Nyx PDF Classifier clean score 0.0125

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-get-free-robux-without-verifying-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002e68.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2E68 28972 bytes
SHA-256: 89362263d3eca301b337742d6f3b68bbc9e4285e4797cd4566e7b77a7e7eb5bc
font_01_sfnt_off00006ebd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EBD 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off00007866.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7866 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_03_sfnt_off00008578.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8578 19368 bytes
SHA-256: 63de63cfc252acdf530e8b3b2390dbc20d855d9653817057ed506b48c41b68ab

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