Malicious PDF — malware analysis report

Static analysis result for SHA-256 a19d2f5f143e35cb…

MALICIOUS

PDF

34.1 KB Created: 2021-06-18 19:21:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e0506578d2cc234a09e652981b4e9c6e SHA-1: 784b1d4e336087f0405d3551259f7d91337cb79b SHA-256: a19d2f5f143e35cb6754593fd65ed943626180c3660ccd2270be5ff34665d0dc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to a known malicious infrastructure, specifically advertising free game hacks and currency. The document body and heuristics confirm the lure is related to 'Free Robux' and game generators. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or scam attempt, likely leading to further malware download or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/free-robux-eu5-game-hack In PDF document text
    • https://irelandindia.ie/wp-content/uploads/fsqm-files/criminal-vs-swat-money-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://irelandindia.ie/wp-content/uploads/fsqm-files/roblox-1m-robux-hack_GM431946152.pdfIn PDF document text
    • https://irelandindia.ie/wp-content/uploads/fsqm-files/download-for-roblox-free_GM431946152.pdfIn PDF document text
    • https://irelandindia.ie/wp-content/uploads/fsqm-files/free-halloween-costumes-for-roblox_GM431946152.pdfIn PDF document text
    • https://irelandindia.ie/wp-content/uploads/fsqm-files/robux-for-free-codes_GM431946152.pdfIn PDF document text
    • https://irelandindia.ie/wp-content/uploads/fsqm-files/how-to-get-free-spider-man-mask-roblox_GM431946152.pdfIn PDF document text
    • https://irelandindia.ie/wp-content/uploads/fsqm-files/youtube-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • https://irelandindia.ie/wp-content/uploads/fsqm-files/roblox-the-scary-elevator-red-keys-locations-cheat-sheet_GM431946152.pdfIn PDF document text
    • https://irelandindia.ie/wp-content/uploads/fsqm-files/roblox-code-card-free_GM431946152.pdfIn PDF document text
    • https://irelandindia.ie/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free-on-ps4_GM479516143.pdfIn PDF document text
    • https://irelandindia.ie/wp-content/uploads/fsqm-files/free-robux-hack-october-2021_GM431946152.pdfIn PDF document text
    • https://irelandindia.ie/wp-content/uploads/fsqm-files/coin-master-free-link_GM406889139.pdfIn PDF document text
    • https://irelandindia.ie/wp-content/uploads/fsqm-files/robux-money-cheat_GM431946152.pdfIn PDF document text
    • https://irelandindia.ie/wp-content/uploads/fsqm-files/free-roblox-gift-card-codes-2021-giveaway_GM431946152.pdfIn PDF document text
    • https://irelandindia.ie/wp-content/uploads/fsqm-files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://irelandindia.ie/wp-content/uploads/fsqm-files/how-to-hack-filtering-enabled-games-roblox_GM431946152.pdfIn PDF document text
    • https://irelandindia.ie/wp-content/uploads/fsqm-files/roblox-hacks-for-phone_GM431946152.pdfIn PDF document text
    • https://irelandindia.ie/wp-content/uploads/fsqm-files/roblox-money-cheat-codes-2021_GM431946152.pdfIn PDF document text
    • https://irelandindia.ie/wp-content/uploads/fsqm-files/free-robux-new-logo-roblox_GM431946152.pdfIn PDF document text
    • https://irelandindia.ie/wp-content/uploads/fsqm-files/how-do-u-get-free-robux-on-ipad_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
font_00_sfnt_off000030ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30EE 21996 bytes
SHA-256: 9139d0a4fffa8149bc3dd2086fb31b472067af513c099a5019608d30ca6b67dd
font_01_sfnt_off00006148.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6148 18664 bytes
SHA-256: 4815fc60e1ef8d716606ac7f5acd1ee6acc456c9bae4110c453738d190735814

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