Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d129338f481c60c…

MALICIOUS

PDF

37.1 KB Created: 2021-05-21 13:35:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 48c92a39309afb521e3401a4d22444d5 SHA-1: 77dc32d364d568c501efd9ef8302f290921464a3 SHA-256: 6d129338f481c60c3becdc31fb584f850da48b08ce8335218dfc5cf6696cfd9a
160 Risk Score

Malware Insights

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

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as 'game hacks' or 'generators'. The document body explicitly mentions 'How To Hack Roblox For Robux' and includes a call to action to access a generator, indicating a phishing or scam attempt. The ML classifier also flagged this PDF with high confidence.

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-roblox-for-robux-game-hack In PDF document text
    • http://malichy.pl/images/coin-master-golden-cards-hack_GM406889139.pdfIn PDF document text
    • http://malichy.pl/images/roblox-shirt-template-free_GM431946152.pdfIn PDF document text
    • http://malichy.pl/images/roblox-redeem-card-codes-free_GM431946152.pdfIn PDF document text
    • http://malichy.pl/images/minecraft-pe-mod-menu_GM479516143.pdfIn PDF document text
    • http://malichy.pl/images/free-robux-giveaway-live_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_off000032cf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32CF 25632 bytes
SHA-256: 801e3c1dce01a77c6185ea804f53da6f5a13108d9562a7789674cc995cc20853
font_01_sfnt_off00006e86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E86 18648 bytes
SHA-256: 7689b6731d47fc176aef925fc5194a10a34d162e90d7014a3ccea13949bcaf7e

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