Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb6f01799c7dc5d6…

MALICIOUS

PDF

40.4 KB Created: 2021-05-23 23:51:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 68f7aea451028ac740a4fa22b0796de3 SHA-1: e8387fcf2cdf50b7471357cf7cfb440194e245c8 SHA-256: eb6f01799c7dc5d6dfa0c0cb36c31dedbb496dd1703af712732c5a1a2adc018e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'free Robux' and links to external URLs that are likely part of a scam or malware distribution. The document body explicitly mentions 'How To Get Free Robux No Scam' and includes a call to action to 'CLICK HERE TO ACCESS ROBLOX GENERATOR', directing users to a suspicious URL. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7768

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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-no-scam-game-hack PDF link annotation
    • http://regnataudio.com/images/coin-master-free-gift-cards_GM406889139.pdfIn PDF document text
    • http://regnataudio.com/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://regnataudio.com/images/minecraft-free-download-pc_GM479516143.pdfIn PDF document text
    • http://regnataudio.com/images/free-minecraft-worlds_GM479516143.pdfIn PDF document text
    • http://regnataudio.com/images/2021-free-spins-coin-master-link_GM406889139.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
font_00_sfnt_off000032e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32E1 26840 bytes
SHA-256: 37c480d310467c6f7ecf02599835a05dc0486a184fe6a043578da4c32e450ba2
font_01_sfnt_off00007128.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7128 2820 bytes
SHA-256: 972979c3a46100cf5f8fd289bc6fbd2496ff75fec0e3f6753648c72ec6eba714
font_02_sfnt_off00007ac8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AC8 18768 bytes
SHA-256: d1f42346170e568709c452458a32d8325f9466b63e26828f6615071549d089d8

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