Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c1c24281c617fec…

MALICIOUS

PDF

47.1 KB Created: 2021-06-03 09:30:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 49e05e98ff48473a125efb6e8803b837 SHA-1: c4adf7613a993564c3d7eaa9014dc786d72c763f SHA-256: 2c1c24281c617fecba42208896a869d92d5f2f6c3a8b31a25aee513ee1125c78
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, masquerading as free game hacks and generators. The document body and heuristics indicate a lure to a URL hosted on 'netcdn.online', which is associated with malicious redirector infrastructure. No scripts were extracted, but the presence of multiple malicious links strongly suggests an attempt to redirect the user to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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.online/app/431946152/free-roblox-clothes-for-your-avatar-game-hack In PDF document text
    • http://www.myresidence.lu/userfiles/files/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/how-to-get-free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/how-to-get-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/coin-master-hack-spins-and-coins-unlimited-free-download_GM406889139.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/how-to-hack-coin-master-ios-2021_GM406889139.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/coin-master-gold-cards-free-link_GM406889139.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/coin-master-cheats-free-spins_GM406889139.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/i-robux_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/pokemon-go-free-99_GM1094591345.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/free-minecraft-maps_GM479516143.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/cool-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/free-tiktok-followers-no-human-verification-or-survey-2021_GM835599320.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/free-minecraft-codes_GM479516143.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/free-robux-no-human-verification-and-no-survey_GM431946152.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005003.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5003 24740 bytes
SHA-256: 7db10b9c00fac0c9f3c1aa18069cbb29cd47124584bef85eb80c9b0a1a44672c
font_01_sfnt_off00008906.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8906 3028 bytes
SHA-256: 4dadeffa4122c518e4e4700e1abdbb7ef24399326b32f965a4584292b36bf533
font_02_sfnt_off00009363.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9363 18860 bytes
SHA-256: 1761c8fbdaafa52a42c2d9c8dd0fbea25e5bec314d4deea8139da4bd569234ce

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