Malicious PDF — malware analysis report

Static analysis result for SHA-256 35674adbb9eccb32…

MALICIOUS

PDF

33.8 KB Created: 2021-07-06 08:55:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 66279d2bc6e27bd5b44ceab6aea57c3b SHA-1: c86cb1bccfe9ea3f1e0b7fcfdd9c61ab5df60065 SHA-256: 35674adbb9eccb328adf0d97f408f8c30c493f3fd7e31759f98d28cad8661dd4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to free game items, specifically referencing Minecraft and Roblox. It contains multiple links, including one to a known malicious redirector at http://netcdn.tw/app/479516143/minecraft-images-free-game-hack. The document body and heuristics indicate that the primary function is to redirect users to potentially malicious content, likely for credential harvesting or further malware delivery.

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.tw/app/479516143/minecraft-images-free-game-hack In PDF document text
    • http://rsudtenriawarubone.com/perpustakaan/repository/free-robux-now_GM431946152.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan/repository/coin-master-free-spins-and-coins-app_GM406889139.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan/repository/roblox-free-printables_GM431946152.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan/repository/free-t-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan//repository/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan/repository/roblox-cheat-engine-money_GM431946152.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan/repository/minecraft-free_GM479516143.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan//repository/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan/repository/free-robux-quiz_GM431946152.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan//repository/claim-free-robux_GM431946152.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan/repository/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan/repository/how-to-hack-coin-master-cheat-engine_GM406889139.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan//repository/legit-coin-master-hack-october-2021_GM406889139.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan/repository/minecraft-pocket-edition-free-ios_GM479516143.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan//repository/bloxawards-com-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan//repository/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan/repository/free-roblox-gamepasses-script_GM431946152.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan//repository/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan/repository/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • http://rsudtenriawarubone.com/perpustakaan/repository/get-free-spins-coin-master_GM406889139.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_off00003046.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3046 22320 bytes
SHA-256: 38df197e7a29c3b3ba74216c7ce4ed1618df39b1b5016c8bbca226c48113cd90
font_01_sfnt_off0000620c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x620C 18116 bytes
SHA-256: 76604dd5740139514d3fd46c2a9d9c838f52c59b348f00b4ee9f07d20b77a693

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