Malicious PDF — malware analysis report

Static analysis result for SHA-256 61a9389a073baa48…

MALICIOUS

PDF

51.8 KB Created: 2021-05-13 10:35:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d6134e290b5166c6cd720fa6c580e35e SHA-1: 3c218a79abf577936b7ae8d0e1dd700c8eb467ee SHA-256: 61a9389a073baa4854b2f230e1695475b3de6965ab184092994851a798604e89
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and generators, directing users to a known malicious redirector. The embedded links and the document's content strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites. While no scripts were explicitly extracted, the PDF structure and heuristics indicate malicious redirection is the primary goal.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8646

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/roblox-play-as-guest-free-game-hack In PDF document text
    • https://perpustakaan.stieppi.ac.id/repository/freerobux-hack-us_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stieppi.ac.id/repository/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stieppi.ac.id/repository/como-hackear-coin-master-en-espaol_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stieppi.ac.id/repository/roblox-com-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stieppi.ac.id/repository/minecraft-pocket-apk_GM479516143.pdfIn PDF document text
    • https://perpustakaan.stieppi.ac.id/repository/roblox-cheat-codes_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stieppi.ac.id/repository/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stieppi.ac.id/repository/adopt-me-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stieppi.ac.id/repository/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stieppi.ac.id/repository/coin-master-daily-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stieppi.ac.id/repository/coin-master-daily-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stieppi.ac.id/repository/coin-master-hack-cheat-generator-coins-and-spins-unlimited_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stieppi.ac.id/repository/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stieppi.ac.id/repository/how-to-get-minecraft-bedrock-edition-on-pc-for-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.stieppi.ac.id/repository/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stieppi.ac.id/repository/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stieppi.ac.id/repository/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stieppi.ac.id/repository/coin-master-2021_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stieppi.ac.id/repository/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.stieppi.ac.id/repository/coin-master-free-spins-link-2021-iphone_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004949.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4949 31172 bytes
SHA-256: c4dc18ba29f0ab8dc5881af07808e054324a522822a9b3586dae40fabd2e2d96
font_01_sfnt_off00008fb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FB9 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off00009962.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9962 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_03_sfnt_off0000a673.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA673 18756 bytes
SHA-256: 536746ef029180016b10674303df9b70bf6b2620163374f544b37f1543ff13dc

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