Malicious PDF — malware analysis report

Static analysis result for SHA-256 63d143be56587ce8…

MALICIOUS

PDF

39.0 KB Created: 2021-05-21 21:14:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 1ea7e04bc1011d8e8e89603f1c432e95 SHA-1: be2af84e73ec813ad4a444681762120ffa6f6b97 SHA-256: 63d143be56587ce8bccc1d36a353b9ee742eb6c6f351050b5b58dd4533e8be97
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as free game hacks and generators for popular games like Minecraft and Roblox. The document body explicitly contains phrases like 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', reinforcing the lure. The embedded URLs are designed to lead the user to download potentially malicious content or visit further compromised sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8068

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/479516143/minecraft-java-edition-free-trial-game-hack In PDF document text
    • http://zinicrom.com/images/mcpe-com_GM479516143.pdfIn PDF document text
    • http://zinicrom.com/images/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://zinicrom.com/images/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://zinicrom.com/images/roblox-troll-outfits-free_GM431946152.pdfIn PDF document text
    • http://zinicrom.com/images/how-to-become-a-hacker-in-roblox_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000034fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34FA 24580 bytes
SHA-256: f17e9e5cfefb6b3e9b98aa3950069be5beb9902192663e1127ab3a9ba98248c5
font_01_sfnt_off00006d07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D07 2856 bytes
SHA-256: 8c5d9bcb386d88c7f99323d8d482e46ea21dea038a5b842744dd5d39b26b2c44
font_02_sfnt_off000076de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76DE 18240 bytes
SHA-256: 1be29b22a500e2a60a7236cc7f3818504a778037c129f908a3826a58d12b939a

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