Malicious PDF — malware analysis report

Static analysis result for SHA-256 abbb4d19892936fd…

MALICIOUS

PDF

35.0 KB Created: 2020-08-21 01:15:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d07e4ed819c09138aba4ee4dcd263aaa SHA-1: 090843a51a3f23c69509b2fe5a3d179ef250f73a SHA-256: abbb4d19892936fd1d6f0019a8994768736b08f72676d34a04d95e9a7549acd7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains multiple links, with a critical heuristic firing indicating it redirects to known malicious infrastructure. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. The presence of numerous links, including a link farm, suggests an attempt to drive traffic to malicious sites, likely for phishing or malware distribution.

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=can%2527+t+calibrate+compass+android In PDF document text
    • http://vefenu.milliesjumps.com/uploads/1/3/1/3/131383483/febidoz.pdfIn PDF document text
    • http://bilafa.brewednblended.com/uploads/1/3/0/7/130775370/99577d5936dd916.pdfIn PDF document text
    • http://files.lesleymcshea.com/uploads/1/3/0/7/130776776/9334407.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/1/0431/6453/2900/files/moldes_de_letras_grandes_y_bonitas_para_imprimir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1744/4264/files/topographic_map_interpretation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8279/2612/files/l_agriculture_en_algerie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1801/8216/files/rewivijus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1555/1645/files/mufalupewukuvuzububoja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4568/2332/files/1073204073.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2496/5019/files/mcquarrie_statistical_mechanics_solutions_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3295/2477/files/komaletarabuxikuwilejonuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0900/0103/files/crucial_ssd_clone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6091/9462/files/wilozufebojipigawizewif.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 2

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_off00004d9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D9C 5296 bytes
SHA-256: f05bf94bf7704f6c68c161b6c7deee6c6e944bf61a13a58bb302456f72ae25c6
font_01_sfnt_off00005f81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F81 9276 bytes
SHA-256: b4383d1543a827a834f01c410a11c594fa44d5cabc49bb386b7a4073b4786ae6

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