Malicious PDF — malware analysis report

Static analysis result for SHA-256 a082488f156ecb8a…

MALICIOUS

PDF

37.1 KB Created: 2020-08-01 17:30:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: effffac08723c564adbd43d62f94a4af SHA-1: b443d191a7dc7a73be04b70cc2571ecbd2bc5df4 SHA-256: a082488f156ecb8a7bbbb1052bea12d2b3297551524b036e2d8b37e3b7cce2b4
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains hosting other PDFs, and one critical link to a known malicious redirector. This indicates a link farm or redirection attack designed to lead users to malicious content. The ML classifier strongly supports the malicious verdict.

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.ru/pify?keyword=arriba+6th+edition+student+activities+manual+pdf In PDF document text
    • http://files.scatteredsacred.com/uploads/1/3/1/3/131383426/9218559.pdfIn PDF document text
    • http://files.campervangoodies.co.uk/uploads/1/3/1/3/131383747/jiwejoluxe.pdfIn PDF document text
    • http://files.swaptimeusa.com/uploads/1/3/0/7/130739982/190651.pdfIn PDF document text
    • http://files.chromosome3andme.com/uploads/1/3/1/4/131454355/watabijexupo-jagaxepefuj-pezubewajo.pdfIn PDF document text
    • http://files.forgingdreams.com.au/uploads/1/3/2/6/132681452/8c847e5d648dc.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/1/0433/4970/4854/files/98716934324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1891/0870/files/waxazujomifiwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2535/0306/files/75453597588.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/5561128363.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6623/6834/files/61222878476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9350/8771/files/94636810993.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5681/6540/files/77150684981.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/9284441163.pdf?v=1594212706In PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2060/7900/files/29556257880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3926/8774/files/67621244790.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5462/7993/files/nifunixifudevovax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9826/0124/files/bunav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7519/7346/files/11786087355.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_off00004edc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EDC 5736 bytes
SHA-256: 6801b12ab175f71c41050960aee8ec820e9fc7b5ff68b68485e4ab831b38ec74
font_01_sfnt_off0000623a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x623A 10256 bytes
SHA-256: ce0543f14436eff9a8550d2ce9a0f4ca92b44f778909403fa54d462f06ee6353

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