Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e2751a01b95adbf…

MALICIOUS

PDF

34.6 KB Created: 2021-07-05 05:05:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 3fa001e95221d73cde6cc723f54d18fd SHA-1: 8cceb5267c6d9e04eec68018ff4702021c1dd5de SHA-256: 4e2751a01b95adbf8bbe0dcefa59fbf8a0687c211119826dde7a1538c2572abb
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/431946152/get-me-free-robux-game-hack PDF link annotation
    • http://library.persadabunda.ac.id/repository/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/pastebincom-roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/pokemon-go-free-key_GM1094591345.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/get-free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/how-to-change-roblox-username-for-free_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-bc-for-roblox-codes_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-roblox-codes-june_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-roblox-items-catalog_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/coin-master-free-spins-cash_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/roblox-bux-free_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-commands-for-roblox-without-admin_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/roblox-hacks-com_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/static-moonactive-net-free-spins_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/comment-installer-un-cheat-sur-cbro-roblox-franais_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/moonactive-free-spins_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-account-roblox-2021_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
font_00_sfnt_off000030d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30D8 22212 bytes
SHA-256: 482a84ee3ed32773f14def7c949076394065646536241beedbef35ea1ff3e739
font_01_sfnt_off00006216.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6216 19016 bytes
SHA-256: 347cbacabdd051a32e8ff1370d494dce2d8b96fd8278a713b029cdf2c24af4e4

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