Malicious PDF — malware analysis report

Static analysis result for SHA-256 598798f65d97217d…

MALICIOUS

PDF

40.0 KB Created: 2020-09-10 00:15:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7a9db4bc79e1515ff2cd82d62c9a5f07 SHA-1: cf2c58839c5dbec3a6531ce681cfb2aab85e23d4 SHA-256: 598798f65d97217db30812268ef60fa0e38c074bb2c2040c41e20f38953492a0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic match for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. The document body, though partially corrupted, contains text related to 'Annoying insect crossword answers' and includes a URL that appears to be a lure. The PDF also exhibits characteristics of a PDF_SEO_LINK_FARM, suggesting it's part of a larger scheme to distribute malicious links. The primary malicious URL identified is https://ttraff.me/wix?keyword=annoying+insect+crossword+answers, which likely serves as a redirector to further malicious content.

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.me/wix?keyword=annoying+insect+crossword+answers In PDF document text
    • http://files.pcrws.com/uploads/1/3/0/9/130969160/mijejivadukizogipuge.pdfIn PDF document text
    • http://files.325986690869568534.com/uploads/1/3/0/8/130814280/sapeluvapej.pdfIn PDF document text
    • http://files.rochellelucey.com/uploads/1/3/1/0/131070469/8384719.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/1/0427/8039/3639/files/for_loop_php.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5870/8118/files/chez_nous_fourth_edition_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1538/6774/files/bse_odisha_8th_class_book_download.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/5ecadc_4bc92536f91d49db98bcf7a16be927e3.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/cec570_0d168e3fc0e94641a65b07d74f070f2a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_83c94c35d1d04a19bc32a8329cb88f04.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0196/9820/files/wordly_wise_3000_book_5_lesson_6_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/6951/4404/files/analiticka_hemija_knjiga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7176/6695/files/gimamesediriniwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2460/2520/files/2020354527.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4659/8816/files/rubujokusolujetuduz.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 7

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_off00005e52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E52 5260 bytes
SHA-256: db464891e8e1e00e59f500f1e7d0d3013876f303f98cd900c48f805f480e19e8
font_01_sfnt_off00007063.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7063 10140 bytes
SHA-256: ddf990a715be49ede4a8a211505badbba38ac1f91c1e3ca24c88d26f04c80ee6

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