Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d0866484543d0f5…

MALICIOUS

PDF

44.7 KB Created: 2020-08-08 03:50:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6f1e60370da95f68fe4490d0ce0c99da SHA-1: 0a5d02e0c57897bcf826cbab098e01a1d2b9944f SHA-256: 3d0866484543d0f576ed1b9da79e70e42aa4d90b33fc166b3183754db30633d3
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links pointing to other PDF files hosted on various domains, including Shopify. One of these links, 'https://ttraff.cc/wb?keyword=karakteristik%20peserta%20didik%20sekolah%20dasar%20pdf', is flagged as a malicious redirector. This suggests the document is part of a link farm or SEO poisoning campaign, likely intended to distribute malware or lead users to malicious websites.

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/wb?keyword=karakteristik%20peserta%20didik%20sekolah%20dasar%20pdf In PDF document text
    • http://files.valleyrootsfoodhub.com/uploads/1/3/1/6/131636843/zodefoxodolobe.pdfIn PDF document text
    • http://files.sabatinomangini.com/uploads/1/3/1/4/131438180/87fff37fef0ba.pdfIn PDF document text
    • http://files.inspiredhouseplans.shop/uploads/1/3/0/7/130775180/6816222.pdfIn PDF document text
    • http://files.magdalenevii.com/uploads/1/3/0/9/130969003/tefofazo.pdfIn PDF document text
    • http://files.mizzodcast.com/uploads/1/3/1/0/131070845/6094242.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/1/0432/7591/1321/files/xokixokosiwudekoxoxire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2906/7938/files/kevexerewid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3953/8851/files/bose_av3-_2-_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8976/5276/files/dudasubuzov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2883/0625/files/41501835795.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3713/0914/files/mobojijuduwitepi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/45560821546.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3140/2395/files/12482466803.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5736/5670/files/c_singleton_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7298/8071/files/pibararokelaxetidasututij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6661/2130/files/82910383372.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7378/8321/files/dupijoribobuwag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1651/0873/files/self_awareness_theory.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_off000072ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72FF 5160 bytes
SHA-256: a3430dfe470e1feb72c8ca57ed2b17e8b85591eee4c4bd1bea0196c7ea9542ea
font_01_sfnt_off00008484.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8484 9652 bytes
SHA-256: 791334f94c7f8a8d619e9ec535634486061cac4b15da167270cf73c78997fa73

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