Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b344e5f4fd50494…

MALICIOUS

PDF

45.7 KB Created: 2020-08-02 21:05:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a1b82e0f112325d6b2f2e9aa47ad5d9b SHA-1: a0e68a146929382766ac160791de425e228f9136 SHA-256: 8b344e5f4fd50494bd0b7ae6d07a7cf200f9293b5ff5db0f5b3f2a3cdc2d8a70
194 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The document body contains obfuscated text and embedded URLs, including a primary malicious redirector at 'https://ttraff.ru/pify?keyword=boomerang+michael+lewis+pdf'. This indicates the document's purpose is to lure users to malicious sites. No scripts were extracted, limiting the analysis to the PDF structure and embedded links.

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=boomerang+michael+lewis+pdf In PDF document text
    • http://files.hautebeads.com/uploads/1/3/2/8/132814972/4909615.pdfIn PDF document text
    • http://files.goldeneardigital.com/uploads/1/3/1/4/131437276/bipiraferalu.pdfIn PDF document text
    • http://files.bitmathedu.com/uploads/1/3/1/0/131071035/wovewo_noropotuji.pdfIn PDF document text
    • http://files.brisbaneartclasses.com/uploads/1/3/0/8/130874210/dd9d11863f2e.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/1/0431/9579/3557/files/lagavexexexedajanekosaxut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3057/6285/files/13069459389.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9941/3925/files/45359641241.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/golizikedakumeru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2986/3320/files/74058801130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9365/5716/files/54967541306.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5309/5844/files/78670455912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6885/8280/files/volazewadijuvogejin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7141/4173/files/85572570538.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0661/3912/files/46610194837.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5679/8615/files/93156542000.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000669d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x669D 5416 bytes
SHA-256: 62adc2574b1713b47ae493ef4ca6de584d2327fc4626af7e6135919cfc75f045
font_01_sfnt_off000078db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78DB 10288 bytes
SHA-256: c55b67256ecc269a4e6fba1b25c8d659ab4c66aa0aa1e6476f68a39f1ceb7611
font_02_sfnt_off00009bf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BF5 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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