Malicious PDF — malware analysis report

Static analysis result for SHA-256 aebb2f677282d87f…

MALICIOUS

PDF

44.4 KB Created: 2021-06-03 09:11:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b7623962acdbcf9064fb7433b0646408 SHA-1: a97f201c7d8f9d965222fc91b9d701d549823469 SHA-256: aebb2f677282d87fb3a5a26e3a82386be8bc8930f4bdde8e9abd6dbee43606d9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to websites that are flagged as malicious redirectors, specifically promoting game hacks and free currency. The document body and embedded links suggest a lure for users interested in such topics, likely to lead them to a compromised site or a phishing page. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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/406889139/coin-master-free-spins-link-today-haktuts-game-hack In PDF document text
    • http://perpustakaan.idia.ac.id/repository/admin-command-hack-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/pokemon-go-free-youtube_GM1094591345.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/coin-master-links-that-don-t-expire_GM406889139.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/free-robux-videos_GM431946152.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/how-to-get-roebucks_GM431946152.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/roblox-com-redeem_GM431946152.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/how-to-make-a-cool-roblox-character-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/coin-master-hack-android_GM406889139.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/coin-master-daily-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/coin-master-free-coins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/coin-master-hack-online-without-human-verification_GM406889139.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/hex-code-hacks-not-working-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/coin-master-level-3_GM406889139.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/how-to-get-infinite-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005144.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5144 25512 bytes
SHA-256: b8c2669a594fffadbd5479e1a14873c3e65dfabbddaab7fc66b765e89d38d590
font_01_sfnt_off000089f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89F3 18548 bytes
SHA-256: d63f97ab71a7fda87216791db27ddfa8a8bd2f02a4bbb91e250eacad7cd73035

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