Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff7941591af34b45…

MALICIOUS

PDF

35.7 KB Created: 2021-06-28 18:04:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 0e16ca098678710c27223c516300d50f SHA-1: 6a5b67fe5252c3df40de4b74ecea9d7ac6ff0eb4 SHA-256: ff7941591af34b455443ded185dfa7695239cad314f171619a962746a9bae7c9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector, that lure users into downloading game hacks or generators. The document body and embedded URLs suggest a phishing attempt related to game exploits. While no scripts were explicitly extracted, the PDF structure and embedded URLs indicate a malicious redirection workflow, likely intended to deliver a second-stage payload.

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.co/app/431946152/free-morph-gui-roblox-game-hack In PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-money-cheat-codes-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-girl-shirts-free_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/fly-roblox-lauc-script-hack-pastebin_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-music-id-young-wild-and-free_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-gift-card-codes-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-robux-without-human-verification-2021-september_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-sell-items-for-robux-for-free_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/minecraft-pe-mod-menu_GM479516143.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-card-hack-2021_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-make-your-own-minecraft-pe-server-for-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-royale-high-diamond-hack-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/best-free-roam-roblox-games_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-high-school-money-hack-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/hack-de-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/minecraft-mobile-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-free-spins-and-coins-app-download_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-hack-fly-in-roblox-pet-ranch-simulater_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
font_00_sfnt_off000032bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32BC 22720 bytes
SHA-256: c89c14b470f7d2af98d7614ec102c98c78b27efc4988e2d6c28d7913da1a773a
font_01_sfnt_off000065cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65CD 19448 bytes
SHA-256: cfe1fbe24be161dae7e788625b90bc67c653c4d1c9cb296c6a779cfc3a880bdc

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