Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4c0454fe865a361…

MALICIOUS

PDF

35.8 KB Created: 2021-05-21 20:01:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: e66c55416bb18c935b36621918a46dc9 SHA-1: 30fc24d395639894ffdeda21788c873c4c75b401 SHA-256: c4c0454fe865a361adc04d525d06c086be99e09fe648ef4c1ba42dde903a6cb5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one pointing to a known malicious redirector infrastructure associated with 'game hacks' and 'free currency generators'. The document body explicitly mentions 'Get Free Robux Without Doing Anything' and includes a 'CLICK HERE TO ACCESS ROBLOX GENERATOR' call to action, reinforcing the lure. While no scripts were extracted, the presence of malicious links and the deceptive content strongly suggest a phishing or scam attempt designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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/get-free-robux-without-doing-anything-game-hack In PDF document text
    • http://sebastiaanshoeve.nl/images/is-minecraft-vr-free_GM479516143.pdfIn PDF document text
    • http://sebastiaanshoeve.nl/images/hack-roblox-players_GM431946152.pdfIn PDF document text
    • http://sebastiaanshoeve.nl/images/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://sebastiaanshoeve.nl/images/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://sebastiaanshoeve.nl/images/free-roblox-hack_GM431946152.pdfIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003113.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3113 24980 bytes
SHA-256: eb3f2ee732ea754cf00fdbabc7646e6ee357b1729929231d4b0040dbd4dfeb50
font_01_sfnt_off000067c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67C5 19240 bytes
SHA-256: a9e3aa10522a438dd9eef37bb3e7f322f16e38379d063b4a50e22a05dda2bc13

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