Malicious PDF — malware analysis report

Static analysis result for SHA-256 bedc4b51500dc8ec…

MALICIOUS

PDF

40.1 KB Created: 2020-08-02 00:49:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 517e77b768231921f7276706cd3a284a SHA-1: 2f59262415385e3e31537873cc7d5eb56c8a4216 SHA-256: bedc4b51500dc8ecb632a44e32f7dfec943d7e25c8d9de407d30b31303ffc132
234 Risk Score

Malware Insights

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

The PDF file contains a link farm designed to redirect users to malicious infrastructure. The primary malicious URL identified is 'https://ttraff.ru/pify?keyword=it-+201+2017', which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other PDF links hosted on Shopify, suggesting a lure to external content. No scripts were extracted, limiting the analysis of direct execution capabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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=it-+201+2017 In PDF document text
    • http://files.fanaticalyankeenfldraftscoutingreports.com/uploads/1/3/2/7/132740804/piluwi.pdfIn PDF document text
    • http://files.thenafd.com/uploads/1/3/1/6/131637308/melijeborite.pdfIn PDF document text
    • http://files.taffycorbettdesign.com/uploads/1/3/2/8/132815960/1d2acd6.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/1/0433/5150/7094/files/14190331231.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3588/5725/files/lusapekonisuvuwezuzibediw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2936/3878/files/madoribonigiride.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5555/3432/files/zokojibinarulogakujejif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5548/7905/files/88339290402.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4923/8178/files/curso_economia_politica_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8000/0423/files/56648957042.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1214/5823/files/jenunupukojexozazezited.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2222/9397/files/natevibepoxubijixefuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2521/1298/files/1311923012.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/6860/8927/files/cc_dumps_track_1_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5507/0880/files/59230882438.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005fcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FCB 4536 bytes
SHA-256: e86ab9d3d51d71f360f6a7743efeb762bdd3288a4232f189e7183e51f4a0a86e
font_01_sfnt_off00006f64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F64 10676 bytes
SHA-256: c720e2360d129db0b4be56ea79b1d89c95f04df061796b201ea7dcebff0dc888