Malicious PDF — malware analysis report

Static analysis result for SHA-256 c28c5ceb507814d2…

MALICIOUS

PDF

39.3 KB Created: 2021-05-20 23:44:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e79fdc17ed86864914114593d1ca9782 SHA-1: e66e1290ad12b85bf95d8c0e402549ce0322ad47 SHA-256: c28c5ceb507814d252a73e8ba6cebd4d8ab161a94d459b1985d126027f467dba
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links that redirect to a known malicious domain, masquerading as a generator for game currency. The document body and heuristics indicate a lure for free game hacks, which is a common social engineering tactic. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a malicious redirection workflow.

Machine Learning

  • Nyx PDF Classifier clean score 0.0272

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-roblox-game-hack In PDF document text
    • https://pasamatour.com/ckfinder/userfiles/files/claim-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002e9c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2E9C 27536 bytes
SHA-256: 2367c331bc3127b805d043fbe61d81051d991e36b61336f79cf5a3bb247ae411
font_01_sfnt_off00006d84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D84 3120 bytes
SHA-256: 49734f51977507cba6bc8d3ad0cee0363aa119856db094427deb9cf565bb7bca
font_02_sfnt_off00007897.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7897 18216 bytes
SHA-256: 4bd910cbe6e13e3cc1fd56827474962a0b5b839547430a6bf478c6dff96655e9

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