Malicious PDF — malware analysis report

Static analysis result for SHA-256 150d993a1fdd8e1d…

MALICIOUS

PDF

40.7 KB Created: 2020-08-25 12:53:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 49f06ac1fe8c463807243e1a067efc3d SHA-1: 58cce871187cd19d3a89c5b18a2e429eb653a08d SHA-256: 150d993a1fdd8e1d8f471bb3b8156c5f309196b44189fc47022f784ddc86df02
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service identified as malicious. The document body text, though heavily obfuscated, contains a URL that appears to be part of this malicious infrastructure. The presence of a large number of external links, including a link farm, suggests a phishing or SEO poisoning campaign aimed at driving traffic to malicious sites.

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=formal+acceptance+certificate In PDF document text
    • http://kufevemag.levihanes.com/uploads/1/3/1/8/131856666/pexixowamazolo-wibukileziz.pdfIn PDF document text
    • http://borumap.viana-motion.com/uploads/1/3/2/6/132683138/livupurikub.pdfIn PDF document text
    • http://kasoxifom.minnesota42.com/uploads/1/3/1/1/131164456/zuzutiko-domuseser-jizomamozibowes-rasikojofidowi.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/1/0427/9376/2975/files/drugged_high_on_alcohol_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6939/0500/files/frederic_delavier.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/5763/5479/files/pajuvemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6394/3074/files/vuvexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9620/2652/files/taresade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4636/1505/files/lenapa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3069/1485/files/vujulipitux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6759/5165/files/applied_maths_3_kumbhojkar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4805/0583/files/bowapavabemifagabo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2411/3049/files/hyphenated_words_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8113/7316/files/fujorifamokizosonurukoti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6164/7262/files/pajetijuduladid.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_off000061eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61EB 4936 bytes
SHA-256: 20ce0673bd4814ff76cf28bc57a590ac8ae91d66bd4f7fd31c16ce6a5afcbc47
font_01_sfnt_off000072a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72A3 10428 bytes
SHA-256: 6c6001f9f81058ba51f1e6ffad377cf904cf169680c06eff2a890bac566b4628

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