Malicious PDF — malware analysis report

Static analysis result for SHA-256 aabf2f4ad449540d…

MALICIOUS

PDF

42.3 KB Created: 2020-08-06 02:56:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6acccf41deb49e09ac436c9c69f2771f SHA-1: 335afb16ab8ff22e202f4cd007c131e4652af0e9 SHA-256: aabf2f4ad449540dd40743c5ea49b46e2e79bd15bdf96717a038303324391464
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many pointing to Shopify domains, which is indicative of a link farm. One of the primary links directs to a known malicious redirector, 'ttraff.cc', with a query parameter suggesting a lure for 'antonyms worksheet for grade 3 pdf'. This suggests the document's purpose is to redirect users to malicious sites, likely for further exploitation or phishing. No scripts were extracted, and the document body is heavily obfuscated.

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.cc/pify?keyword=antonyms+worksheet+for+grade+3+pdf In PDF document text
    • http://files.3rdlayertattoo.com/uploads/1/3/0/8/130874110/b933a6a4e.pdfIn PDF document text
    • http://files.kinematicintegration.com/uploads/1/3/1/8/131856160/lijidudat_wigap_jixoruritepa.pdfIn PDF document text
    • http://files.bookbrokers1.com/uploads/1/3/2/8/132816066/vobevoze.pdfIn PDF document text
    • http://files.thecovenantschristandyou.com/uploads/1/3/1/3/131379434/94345039.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4506/8699/files/dutoranupuraporob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3847/4397/files/sunabetovukipukuzezite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5258/9465/files/sefurabolepirob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0923/6374/files/53804769471.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5778/3718/files/53690995264.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5249/9095/files/52707276743.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7276/6631/files/pukavejodulagafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3640/8982/files/jirobemitojujenovovizazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8488/1824/files/2090200773.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1947/6896/files/malukimavapajoxilipo.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

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_off0000649e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x649E 5832 bytes
SHA-256: f86d2901847dea1fc61ff95e5eed46b9ab9a079bfc09f703209844278652e25d
font_01_sfnt_off00007873.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7873 10568 bytes
SHA-256: 11e2ac8f038b213171eca3afc8e9de9728fceebc07dda5ee0ca2769b4971cac5

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