Malicious PDF — malware analysis report

Static analysis result for SHA-256 d01b2e79354c7c0a…

MALICIOUS

PDF

34.3 KB Created: 2021-06-20 06:43:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 30fb3cd976db808bd58c0b229edd9e8b SHA-1: c89d5b79b3736f23466a3af520fdaa7557eb13ea SHA-256: d01b2e79354c7c0a764c1898ffee3485e1599265417e745edb04eb5c947c312e
220 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links to external websites, many of which are part of a link farm designed to lure users with promises of game hacks and free in-game currency. The primary redirector URL, http://netcdn.co/app/431946152/roblox-phantom-forces-xp-hack-game-hack, is flagged as malicious. The document's structure and content strongly suggest a phishing or scam attempt, likely using a spearphishing attachment vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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 http://netcdn.co/app/431946152/roblox-phantom-forces-xp-hack-game-hack In PDF document text
    • http://apcupschennai.com/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://apcupschennai.com/images/coin-master-free-spin-and-coin-link-app_GM406889139.pdfIn PDF document text
    • http://apcupschennai.com/images/can-you-get-free-robux-without-builders-club_GM431946152.pdfIn PDF document text
    • http://apcupschennai.com/images/best-roblox-cheats-and-hacks_GM431946152.pdfIn PDF document text
    • http://apcupschennai.com/images/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
    • http://apcupschennai.com/images/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • http://apcupschennai.com/images/robux-free-online_GM431946152.pdfIn PDF document text
    • http://apcupschennai.com/images/minecraft-pe-server-hosting-free_GM479516143.pdfIn PDF document text
    • http://apcupschennai.com/images/i-was-hacked-in-roblox_GM431946152.pdfIn PDF document text
    • http://apcupschennai.com/images/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://apcupschennai.com/images/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
    • http://apcupschennai.com/images/free-roblox-school_GM431946152.pdfIn PDF document text
    • http://apcupschennai.com/images/free-promo-codes-for-roblox-2021-not-expired-robux_GM431946152.pdfIn PDF document text
    • http://apcupschennai.com/images/minecraft-login-free_GM479516143.pdfIn PDF document text
    • http://apcupschennai.com/images/free-outfits-roblox_GM431946152.pdfIn PDF document text
    • http://apcupschennai.com/images/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://apcupschennai.com/images/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
    • http://apcupschennai.com/images/free-tiktok-followers-generator_GM835599320.pdfIn PDF document text
    • http://apcupschennai.com/images/minecraft-windows-10-free-with-java_GM479516143.pdfIn PDF document text
    • http://apcupschennai.com/images/roblox-strucid-aimbot-hack-2021-august_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 1

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
font_00_sfnt_off00002fd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FD1 21708 bytes
SHA-256: 44c12ad4c42e69f9b0627e5604d70365aa6ce3448eec27addd3c0942ee1a8ab9
font_01_sfnt_off00005f3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F3D 19680 bytes
SHA-256: 2a20608252e4ba8c89b7a86f334c3b80fec4d7d60d29dd071b59a9c95267972e

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