Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dd150cb5844e2e0…

MALICIOUS

PDF

42.1 KB Created: 2020-10-30 01:40:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 5b46854b358049b1a80fd2951a192538 SHA-1: 4407a8d696b0ebefff1908f51f47e1ff37347edd SHA-256: 1dd150cb5844e2e0d4941329768325fe594d7c77f8e464c843c5f7b227851952
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ttraff.me/123?keyword=the+scribbling+stage+of+child+art+development In PDF document text
    • https://jarapitoxedomel.weebly.com/uploads/1/3/1/4/131437170/relolebaxexapolef.pdfIn PDF document text
    • https://rabexowubomisuw.weebly.com/uploads/1/3/1/4/131407155/donadej.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/laresisif_kigadebokenub_bajutinerid.pdfIn PDF document text
    • https://vixijusodu.weebly.com/uploads/1/3/0/7/130776714/2155817.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/liguwubore/ayushman_bharat_scheme_details_in_telugu.pdfIn PDF document text
    • https://s3.amazonaws.com/tiluwisulepam/union_budget_2018_gradeup.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/challenger_deep_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0505/1590/2636/files/pokemon_leaf_green_game_download_apkpure.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9a8cca3-ebdd-46fe-aae8-95e3a965563d/71056793428.pdfIn PDF document text
    • https://s3.amazonaws.com/jepinebawo/86063982137.pdfIn PDF document text
    • https://s3.amazonaws.com/damevusom/north_meck_high_school_supply_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/3018/2571/files/kurdish_keyboard_sorani_android.pdfIn PDF document text
    • https://s3.amazonaws.com/dedinavesute/bravo_cucina_nutrition_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0709a4b2-485e-4f2b-9d98-253ba0f17ccb/channing_rodd_porn.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65A8 5716 bytes
SHA-256: 35d5495d4ff353a0dc99ddb2c71240cae15c17dc4448d6f06ddc37adc4957d74
font_01_sfnt_off000078f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78F8 10172 bytes
SHA-256: 82a2d610138922138793e85110dde9806973c0920809826f1c48d09a41a4c6c0

Open this report in the interactive analyzer, or submit your own file for analysis.