Malicious PDF — malware analysis report

Static analysis result for SHA-256 41604207103d49b4…

MALICIOUS

PDF

35.5 KB Created: 2021-07-05 15:14:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 838d4d314a439c53beca69d831122b5f SHA-1: ad53ee64a28e9dcc88347336c8b9abf50456fffd SHA-256: 41604207103d49b42309860dbaf3bb12a4934334e9d176856b030e1c5147d043
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URLs that point to known malicious redirectors and lures related to game hacks and free items. The heuristic firings confirm the presence of malicious redirector links and a general lure for game-related exploits. While no scripts were extracted, the document's structure and embedded links strongly suggest it's designed to redirect users to potentially harmful websites for malware distribution or phishing.

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.tw/app/431946152/free-roblox-groups-with-funds-list-game-hack In PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/free-minecraft-hosting_GM479516143.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/coin-master-free-raid-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/free-robux-not-fake_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/free-robux-link_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/how-to-hack-into-drtraybloxs-account-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/free-coin-and-spin-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/free-roblox-games-like-bloxburg_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/luis1-coment-robux-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/rogue-roblox-aimbot-cheat_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/roblox-hack-robux-2021-pastebin_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/free-robux-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/coin-master-link-for-spins_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/free-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/roblox-flame-exploit-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/robux-robux-robux-free-code_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/coin-master-free-spins-link-download-apk_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pa-jember.go.id/repository/roblox-free-robux-hack-without-human-verification_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003019.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3019 23180 bytes
SHA-256: 88440e1f215a77818210a162bba313b2e37300918ece6d3af336a5f67b9314db
font_01_sfnt_off00006453.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6453 19544 bytes
SHA-256: ea43fe8c9d56a4165b182e78eb88bc0ab33d808cd258188602f496d216ea2314

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