Malicious PDF — malware analysis report

Static analysis result for SHA-256 881053cdf119b11a…

MALICIOUS

PDF

63.5 KB Created: 2020-08-22 17:19:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1dde174c33356d74f3395cca8f487d20 SHA-1: ca46370aa8531aec661b13173a8dc0ea072ac096 SHA-256: 881053cdf119b11aef48f2b8a9664cba75051cc061b6dc1648a372dfe3eb8514
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains multiple embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that matches the redirector found in the heuristics. The primary purpose appears to be directing users to malicious content or phishing sites through a deceptive "free download" lure.

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=ben+10+cartoon+game In PDF document text
    • http://files.maclachlanmeadows.com/uploads/1/3/0/7/130775604/jewojetigimef-puwilipo.pdfIn PDF document text
    • http://files.nevisatnight.com/uploads/1/3/0/7/130775992/4c9e4d4de54.pdfIn PDF document text
    • http://files.sunshinegirlabroad.com/uploads/1/3/0/7/130738956/0a330bd679.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0452/8193/5522/files/bartolome_de_las_casas_obras.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6825/2565/files/41178136859.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7357/5841/files/78263268886.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6845/7122/files/gemikilanodenudimevele.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/93861148098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1014/6983/files/beginner_vocabulary_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7074/8827/files/havering_sixth_form_college_entry_requirements.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6275/3445/files/audacity_lame_windows.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4656/8098/files/vekurajemagizefagafo.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 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000aea8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAEA8 4892 bytes
SHA-256: f49b6fc253d83da838cdd741538a3a8abd47e8071ddc10a19d521767812c1534
font_01_sfnt_off0000bf24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF24 10504 bytes
SHA-256: 9f5f5775bb345672d1c951ed3c567cf14858858121e516e1c8aba7763f72b131
font_02_sfnt_off0000e326.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE326 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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