Malicious PDF — malware analysis report

Static analysis result for SHA-256 522b12ef884411ac…

MALICIOUS

PDF

51.6 KB Created: 2021-05-31 22:39:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 993908b227a8151d5361dc88d33bfb56 SHA-1: 0e177d637a387f68c3eceeb912ba21fd66894c6e SHA-256: 522b12ef884411ac5134cefaf1665d3c042857bdd6830001ffa3a4ccb869ff10
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a lure for game hacking and free generators, directing users to a known malicious redirector URL. The document body, though partially corrupted, contains text related to 'Hacking Codes For Robux' and the malicious URL. The presence of a malicious redirector link strongly suggests an attempt to lead the user to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9657

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/hacking-codes-for-robux-game-hack In PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/how-to-start-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/minecraft-account-hacked_GM479516143.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/free-tiktok-followers-generator_GM835599320.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/someone-hacked-me-on-roblox_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/minecraft-free-app_GM479516143.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/instant-robux-free_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/free-minecraft-printables_GM479516143.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/roblox-crashes-every-time-i-run-cheat-engine_GM431946152.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/how-to-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/freer-pro-tiktok_GM835599320.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/free-tiktok-views_GM835599320.pdfIn PDF document text
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000051cc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51CC 25364 bytes
SHA-256: 27bd15fe12ef6c2438e861ee661e204a16cd241c183816f612ad933610ac57f7
font_01_sfnt_off00008b6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B6F 3964 bytes
SHA-256: f6b9a386ee4e0aff622a98b2230905da71eab0ca98398cb52018fda3528d3e2a
font_02_sfnt_off000098cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98CC 3396 bytes
SHA-256: e59bc53cd4c0ee65dc1533becad2866f345dcb060e6c68bb8187d21cb9f973ee
font_03_sfnt_off0000a4be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA4BE 18996 bytes
SHA-256: 236ab2d90f0edfbf71e641db83196b6c5af8ea5f977fe7587ba189129f8857bb

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