Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3ce5af9091a9961…

MALICIOUS

PDF

46.5 KB Created: 2021-05-15 04:00:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 982b7ef6460135c8a15865ee3a262f6a SHA-1: c8f45a5cc331c026ff529c26c9b15a27a2e2f523 SHA-256: f3ce5af9091a99610acca1683f983e1a6fc7d9d98d9a8ce16eaf1870166822c7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on them, ostensibly for game-related benefits. The primary link redirects to known malicious infrastructure, indicating a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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-get-free-robux-on-roblox-game-hack In PDF document text
    • http://www.pcclawyers.com.au/images/make-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pcclawyers.com.au/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.pcclawyers.com.au/images/roblox-free-play_GM431946152.pdfIn PDF document text
    • http://www.pcclawyers.com.au/images/minecraft-java-hacks_GM479516143.pdfIn PDF document text
    • http://www.pcclawyers.com.au/images/irobux-com-redeem_GM431946152.pdfIn PDF document text
    • http://www.pcclawyers.com.au/images/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://www.pcclawyers.com.au/images/hack-coin-master-apk-download_GM406889139.pdfIn PDF document text
    • http://www.pcclawyers.com.au/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://www.pcclawyers.com.au/images/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://www.pcclawyers.com.au/images/coin-master-gold-cards-hack-english_GM406889139.pdfIn PDF document text
    • http://www.pcclawyers.com.au/images/coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://www.pcclawyers.com.au/images/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • http://www.pcclawyers.com.au/images/free-spins-and-coins-from-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.pcclawyers.com.au/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.pcclawyers.com.au/images/how-to-get-a-lot-of-robux_GM431946152.pdfIn PDF document text
    • http://www.pcclawyers.com.au/images/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • http://www.pcclawyers.com.au/images/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://www.pcclawyers.com.au/images/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pcclawyers.com.au/images/coin-master-email-free-spins_GM406889139.pdfIn PDF document text
    • http://www.pcclawyers.com.au/images/free-promo-codes-for-robux_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_off00004ba6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BA6 25352 bytes
SHA-256: 8c0a3c5651b0eb1257faff7b89ff56e64a516dabbc58efc16b33a283d8de63d0
font_01_sfnt_off00008668.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8668 5596 bytes
SHA-256: 9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5
font_02_sfnt_off0000930f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x930F 18356 bytes
SHA-256: 07f7f5fe088ebb6a81b9aca0d3b7acb37488304f642f9e675d153fcc87cea6c5

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