Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fa383b007841e71…

MALICIOUS

PDF

34.6 KB Created: 2021-06-28 06:32:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: f69d4bc5819fb3c283112da536bfec5c SHA-1: 1b4cbeb0345f87c6ef7342e1d19ee8ab737c5659 SHA-256: 9fa383b007841e711d1527c48f72997bb72a110b4dca20e9d46252ef31cf10e2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically promoting a "free generator / game hack" lure. The document body and heuristics indicate a social engineering attempt to trick users into visiting these links. Although no scripts were explicitly extracted, the PDF structure and malicious links suggest an attempt to lead the user to a site that may host further malicious content or exploit.

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/how-to-earn-robux-in-roblox-for-free-game-hack In PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-roblox-accounts-2021-bugmenot_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-hack-no-scam-robloxian_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-oin-1-sec_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/114-4-hacks_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/gold-card-coin-master-free_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/ninja-animation-roblox-free_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-roblox-exploits-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/moonactive-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/haktuts-coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/tiktok-for-free_GM835599320.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-hoodie-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-minecraft-capes-no-mods_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-spins-coin-master-facebook_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-obc-on-roblox-on-ipad_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hacking-ryrylol3-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-32-android-mod-hack-apk-download_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-roblox-backdoor-to-earn-robux-v3rmillion_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hacked-client-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/wahoo-gaming-co-free-robux_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fa8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FA8 22700 bytes
SHA-256: 574095ac6b61e270ae54430a4c700df562f00c0e2d8f7de9db4b4ed20d6e5ae0
font_01_sfnt_off0000625f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x625F 18956 bytes
SHA-256: e47b10822f7e1eb292e96103079a920508c7ee755ad7328f7d213bdb27f531a8

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