Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e12186acebd9767…

MALICIOUS

PDF

41.4 KB Created: 2020-08-24 07:22:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c9545771129f05eafd753e30b8f23ee2 SHA-1: 764977ca055adec7ae74ef52fb50b0a7f4f3db1a SHA-256: 5e12186acebd9767058563254103ec666574fcef67337b15ff0f6961f508ab48
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service, suggesting a link farm or phishing lure. The primary redirector URL is identified as malicious. The document body, though heavily obfuscated, contains the malicious URL and a benign-looking Shopify URL, likely intended to appear legitimate. The presence of multiple PDF links and a malicious redirector indicates an attempt to drive traffic to a malicious site, 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=glassless+mirror+sheets In PDF document text
    • http://files.bellabugphotos.com/uploads/1/3/2/7/132710756/ruwiju.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/1/0433/4272/5275/files/xss_game_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9505/5777/files/1918370218.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6460/7398/files/psychology_personality_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8365/3535/files/lopamidogo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7044/5975/files/warhammer_wood_elves.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8674/9600/files/wunupediwolulakumofiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8570/1019/files/nfl_scores_espn_live.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/4858/2550/files/germany_flag_colouring_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9095/8752/files/causas_de_alodinia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1952/3480/files/format_of_experience_certificate_for_teacher.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0151/1077/files/jorge_baradit_libros.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 4

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_off00006441.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6441 4956 bytes
SHA-256: a2a123a1742867043eefdb0db94c0b5df69e9ce9ab7f7ad357af0d92fb7e3db1
font_01_sfnt_off000074fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74FA 10524 bytes
SHA-256: 55f216fe62a98a0f1033386f0f6c27fa9f7125a7a003d2a689400a014411751e

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