Malicious PDF — malware analysis report

Static analysis result for SHA-256 b620549cf19d667c…

MALICIOUS

PDF

50.1 KB Created: 2021-06-11 04:11:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 45a93adf1e55ae2a47fd56e2b6b4b2ad SHA-1: e42c6ca64b4816a594779e11ce40063a24bdf6db SHA-256: b620549cf19d667c50c2b74ebd17e36b3766056e047be9f47124ea9a9a1b92fc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains embedded links designed to lure users into clicking on what appears to be a free game hack or generator. The primary link redirects to 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 content or further stages of an attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9789

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.tw/app/431946152/can-you-buy-roblox-accountsu-get-alone-for-free-roblox-game-hack In PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/free-online-games-similar-to-roblox_GM431946152.pdfIn PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/khaos-robux-hack_GM431946152.pdfIn PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/free-roblox-game-card-get-your-code_GM431946152.pdfIn PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/axon-anti-cheat-roblox_GM431946152.pdfIn PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/minecraft-toys-for-free_GM479516143.pdfIn PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/4live-fun-free-robux_GM431946152.pdfIn PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/roblox-make-tshirt-free_GM431946152.pdfIn PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/how-to-hack-roblox-accounts-with-bruteforce_GM431946152.pdfIn PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/roblox-aimbot-using-cheat-engine_GM431946152.pdfIn PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/roblox-guess-that-character-free-robux_GM431946152.pdfIn PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/how-to-hack-onto-someone-elses-account-on-roblox_GM431946152.pdfIn PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/minecraft-font-free_GM479516143.pdfIn PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/crystalsheepyoutube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/how-to-get-free-robux-not-a-hack_GM431946152.pdfIn PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/fort-hood-texas-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/get-robux-for-free-generator_GM431946152.pdfIn PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/free-tiktok-followers_GM835599320.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000053c5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x53C5 26924 bytes
SHA-256: bac2412b72ee6fe4b17e2baaaf18fa1b87c889d11732e7d3eff93143a87b4bc8
font_01_sfnt_off000092b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92B9 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off00009fcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FCB 18764 bytes
SHA-256: 4a893ad0b4f2f45854176f54dbb9621f6fcb55e460c6560e67e7bd095679e964

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