Malicious PDF — malware analysis report

Static analysis result for SHA-256 6999736f77a1bfab…

MALICIOUS

PDF

35.2 KB Created: 2021-06-30 11:40:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: f7cf13acca4b6f1bb5eae03e36edec0f SHA-1: 5309e6055c410365265a016f22e99fe21b6e3f80 SHA-256: 6999736f77a1bfab1502c0e014e5927c7300390665195d975a185493618814e7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks. The primary malicious URL identified is http://netcdn.co/app/431946152/account-hacker-roblox-patebin-game-hack. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting potentially harmful websites. No scripts were extracted, but the heuristic firings strongly indicate a malicious redirector workflow.

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/account-hacker-roblox-patebin-game-hack In PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/unlimited-spin-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/infinite-jump-hack-roblox-download-in-discription_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/multiplayer-master-hack-coins_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/minecraft-java-account-free_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/how-to-get-free-clothing-on-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/how-to-use-cheat-engine-to-get-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/roblox-people-girl_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/which-cheat-engine-address-is-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/get-free-robux-in-1-second_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/hack-pour-avoir-des-robux-facilemen-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/how-to-create-a-roblox-hack_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/free-pdf-colouring-page-of-roblox-characters_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/coin-master-free-spins-1-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kotapalu.sch.id/__statics/gudangsoal/files/tiktok-free-credit-card_GM835599320.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_off00003155.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3155 22676 bytes
SHA-256: 78290c220c5b37f784643e9452c98a5581c1f7561640d73df1f91f0c9b97291c
font_01_sfnt_off00006418.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6418 19176 bytes
SHA-256: 05a5394a3613f72ed28c8566aa75166efd09fc75ee8973547d1fd1ad45b373cd

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