Malicious PDF — malware analysis report

Static analysis result for SHA-256 775847b74ca4ff72…

MALICIOUS

PDF

39.3 KB Created: 2021-05-22 09:14:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: d9f3ca5af8a162e379d19a7cb2656eec SHA-1: c268834547805cd5f9409eaac0b624d5b6766b12 SHA-256: 775847b74ca4ff72172cf3cfcd8226368aab155ceae30c8bcc68cb37e16d9bfe
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to a website offering 'free Robux' and 'game hacks', a common lure for phishing or scam operations. The document body explicitly mentions 'Free Robux Redeem Codes' and includes a call to action to access a 'Roblox Generator'. Several URLs associated with the document point to similar scam-related content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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/free-robux-redeem-codes-game-hack In PDF document text
    • http://rose-mari.com.ua/images/moonactive-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://rose-mari.com.ua/images/free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://rose-mari.com.ua/images/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://rose-mari.com.ua/images/how-to-get-daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://rose-mari.com.ua/images/free-minecraft-accounts-reddit_GM479516143.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_off00003082.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3082 26692 bytes
SHA-256: f60b5ecdb216edca547cc3ad29d1e51938bbf8aada44966a0b5e17e00e080fe0
font_01_sfnt_off00006dd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DD4 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off00007782.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7782 18448 bytes
SHA-256: ac1fbd71dc65d7a5013a2beb110170fe519d7ae17df877d161357825f85fd2ae

Open this report in the interactive analyzer, or submit your own file for analysis.