Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4f46f548be630d1…

MALICIOUS

PDF

70.7 KB Created: 2020-08-08 09:22:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a45e1df1d0fbdf4c52a5dcfac1a6a199 SHA-1: f8641354ad567bad46ec7527770796466703046d SHA-256: d4f46f548be630d13bec908c22e00b1aae95c60368ac4f9e0d8dde7c986419db
194 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it links to known malicious redirector infrastructure and functions as a link farm. The embedded URL 'https://ttraff.ru/pify?keyword=beam+column+base+plate+design+lrfd+method.+pdf' is flagged as malicious. The document body, though heavily obfuscated, contains this URL, suggesting the PDF's primary purpose is to redirect users to 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.ru/pify?keyword=beam+column+base+plate+design+lrfd+method.+pdf In PDF document text
    • http://files.maijaranka.com/uploads/1/3/1/4/131437615/robaji_lazuro.pdfIn PDF document text
    • http://xirepew.designauthentic.com/uploads/1/3/0/7/130738837/6791755.pdfIn PDF document text
    • http://files.mackeiganmarketing.com/uploads/1/3/1/4/131452732/sodopafesub.pdfIn PDF document text
    • http://files.elainepolishak.com/uploads/1/3/1/8/131857419/gavov.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/1/0428/9835/8432/files/51108684678.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9309/0714/files/22379642489.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2917/6232/files/20531283661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pekuxiwitijumowiviw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9282/8579/files/jibojajikeravi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7667/2918/files/muxiwurawereredotesutuxid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8857/6661/files/lolawenogejupan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5170/3706/files/bapid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78682713185.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90262961418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/70339383958.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/1911/2345/files/power_electronics_projects.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000abb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xABB9 5788 bytes
SHA-256: 7a986cc67e6e535b2cde3b01a0100c929a5cf1c80531f7908e25bb16b6559777
font_01_sfnt_off0000bf04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF04 6220 bytes
SHA-256: 6545e4e2910701c4535c7debf99b27f9c64b330e5d9e1111502d0386d503ed81
font_02_sfnt_off0000ce1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE1A 11600 bytes
SHA-256: fc50d7857aec140abaedfc7fb5f9f4fd8ddc298a255851e55eb991d1fc222c15
font_03_sfnt_off0000f559.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF559 16656 bytes
SHA-256: 55c8669b4502471142deed13cefc928437432b977e29e2bbc035fe747ccacbeb