Malicious PDF — malware analysis report

Static analysis result for SHA-256 502446762494d7d0…

MALICIOUS

PDF

43.2 KB Created: 2021-05-19 13:32:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fe67a36419d85e40289b1ba45f49580c SHA-1: abe99cb04d585a7c82d7a940c2917f4ab29524d4 SHA-256: 502446762494d7d0bddbcddd0e8c5c030699081d3c67d59805522a44720cfa5d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a malicious redirector link, specifically targeting users with a "free generator / game hack" lure. The embedded URL and document body text reinforce this theme, aiming to trick users into navigating to potentially harmful websites. While no scripts were directly extracted, the PDF structure and embedded links suggest an attempt to redirect users to malicious content, likely as part of a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/406889139/coin-master-heaven-daily-free-spins-link-today-game-hack In PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/coin-master-gift-link_GM406889139.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/minecraft-bedrock-server-hosting-free_GM479516143.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/free-roblox-hair-codes_GM431946152.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/free-coins-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/mcpe-master-free-coins_GM406889139.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/gamehunters-club-coin-master_GM406889139.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/roblox-login-hack_GM431946152.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/tiktok-free-view-iphone-keychain_GM835599320.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/easy-robux-generator_GM431946152.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/coin-master-free-spins-generator_GM406889139.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/roblox-comcom_GM431946152.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • https://mylittlebigthing.com/assets/images/posts/uploads/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b48.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B48 25364 bytes
SHA-256: 585469a1e4cdac83653af346251c4b407d3a577bd52637ea85145bbfd9a3f647
font_01_sfnt_off000084fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84FA 18764 bytes
SHA-256: 9664e6639ec6bfb441d9a629ee391d45b0cdd58efe6a451f6054a3f4b2baebdd