Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd82569a727fa3cc…

MALICIOUS

PDF

35.3 KB Created: 2021-06-29 06:00:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: fd47a1a404dada1a3a94482264178562 SHA-1: efc35dbaa71f0e9a50f2f8b3a8206575b35263c8 SHA-256: dd82569a727fa3cc8fb9e3ceace90a1c664dc899362f0e8f753c53ca25591de9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating it links to malicious redirectors, specifically targeting users with lures for game hacks and free currency. The primary URL identified, http://netcdn.co/app/431946152/black-panther-roblox-free-game-hack, is flagged as malicious. The document body, though partially corrupted, contains similar URLs, reinforcing the phishing lure.

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/black-panther-roblox-free-game-hack In PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu//repository/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu//repository/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu//repository/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu//repository/free-coin-master-androd-cheats-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu//repository/legit-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu//repository/minecraft-pe-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu/repository/redeem-code-roblox-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu//repository/minecraft-java-edition-free-trial_GM479516143.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu/repository/roblox-grand-blox-auto-cheats_GM431946152.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu/repository/robloxbux-us-generator_GM431946152.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu/repository/coin-master-free-bonus_GM406889139.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu//repository/roblox-login-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu/repository/roblox-got-talent-piano-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu/repository/i-hacked-nubnebs-account-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu/repository/minecraft-xbox-360-free-download-code_GM479516143.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu/repository/cheats-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu/repository/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu/repository/best-way-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu//repository/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.litbang.kemkes.go.id/tawangmangu/repository/free-minecraft-windows-10-account_GM479516143.pdfIn PDF document text
    • https://www.roblox.com/my/tasksIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000324f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x324F 22624 bytes
SHA-256: f6fc74667012f3ca55e9d6b519b643aeab34d9d073719904ca5c88e5fca29e0c
font_01_sfnt_off000064ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64CA 19244 bytes
SHA-256: 46c5023e522fde72c3720710d9c37f799e4bb956d23844d69af7120ad0006700

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