Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c576944ba9804c3…

MALICIOUS

PDF

46.3 KB Created: 2021-06-11 03:05:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 64d523d838540416e7ee60886d768ab1 SHA-1: 69f9c07ec185f04de568e7179a4c843c68230bca SHA-256: 5c576944ba9804c353133ed6f782a7ab064eeff4a13e45a4a6e62b808b36ded2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as game hacks and cheats. The heuristic firings indicate that the document is designed to lure users into clicking these links, likely leading to further malicious downloads or exploits. Although no scripts were explicitly extracted, the PDF structure itself facilitates the redirection, aligning with common social engineering tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9748

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/roblox-infinite-health-cheat-engine-game-hack In PDF document text
    • http://library.apsidoarjo.ac.id//repository/minecraft-wurst_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/www-coin-master-hack-tk_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/gain-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/free-to-play-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-free-spins-link-hack_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/real-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-roblox-dominus_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-roblox-money_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/hack-coin-master-app_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-face-err-free_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-hack-client_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-views-on-tiktok_GM835599320.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-free-spins-hack-download_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/what-is-coin-master-app_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-club-hack_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-online-hack-for-free_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
font_00_sfnt_off00004ee8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EE8 24764 bytes
SHA-256: 7e8ce46a18a91611530fde962ce67c819cc48fe6610ac49750b1a3a7ba59861d
font_01_sfnt_off0000871c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x871C 2832 bytes
SHA-256: 77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2
font_02_sfnt_off000090cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90CD 18688 bytes
SHA-256: 4d3d2c1252660c37d6976d27d512964fc9dde0ad385438ae147b1744ba66d507

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