Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d31027d098d34e4…

MALICIOUS

PDF

47.4 KB Created: 2020-08-29 03:40:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bb00e40c43d990f3de3a624cdd2109eb SHA-1: db2ca2bb7623b5cef4cbeb0359b0857eba55353e SHA-256: 5d31027d098d34e409fb036dd511ace083e2eceb8e94cf4a39b71ac869010d8a
194 Risk Score

Malware Insights

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

This PDF file was identified as malicious due to its use of redirector links pointing to known malicious infrastructure, specifically 'ttraff.ru'. The document body, though heavily obfuscated, contains text suggesting an educational topic ('Kimyan1n temel kanunlar1 konu anlat1m1') and includes the malicious URL, indicating a lure to a phishing or malware distribution site. The presence of numerous external PDF links, many pointing to Shopify, further supports the SEO link farm tactic.

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/wix?keyword=kimyan%25C4%25B1n+temel+kanunlar%25C4%25B1+konu+anlat%25C4%25B1m%25C4%25B1 In 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/1/0429/5157/3657/files/kayle_build_s6.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1776/2973/files/55820494581.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7549/3271/files/61312797009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8987/9445/files/ruwepil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/94662163826.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4728/0026/files/46142945476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3663/8360/files/xabateloxeguneluxabawumas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2210/6271/files/88755535567.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_1225a9ef6b364cad995240a823b438a5.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_e21ac01d42b1456f88727182eb37006b.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_ef3ce485d6de47268a4e9a7bbb992ec6.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6055/2089/files/blackberry_10_launcher_for_android_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7230/5817/files/jomopapozulewetadevadupa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8679/7213/files/37809048467.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4066/9849/files/ny_times_crossword_answers_8_23_19.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/1747/2922/files/laryngeal_mask_airway_clinical_guidelines.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

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000642c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x642C 3184 bytes
SHA-256: 97560ea701d480278f5160e3bc33b12ae9d8068c721827351261d2cd488cf2c5
font_01_sfnt_off00006f81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F81 4820 bytes
SHA-256: 7c4782bc0db324736890d94423fa23da52a2e3c55a9cbbaa256843d4dbd2e916
font_02_sfnt_off00007fc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FC6 2252 bytes
SHA-256: fcfb8f0e55ad9df5a1ad0726378e3a06894f11344b8aecece3a66ee94f149217
font_03_sfnt_off0000892c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x892C 11656 bytes
SHA-256: ee5cb58c1a208267140094782eaba080fb59c1e556bdfc62c628c2f206a46dc7