Malicious PDF — malware analysis report

Static analysis result for SHA-256 45088220441c023a…

MALICIOUS

PDF

49.4 KB Created: 2020-08-06 15:08:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5148d349416a215a71c906e8a7067d1c SHA-1: 560979f091120baffa4c0bc430091e3a4bab3837 SHA-256: 45088220441c023a7e97022d0de4a6da046130a3f9a46599144fb8b6171df302
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, directing users to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which point to Shopify domains. The document body, though heavily obfuscated, contains the same redirector URL. The primary attack vector appears to be luring users to malicious infrastructure disguised as a vocabulary game PDF.

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.com/pify?keyword=advanced+vocabulary+games+pdf In PDF document text
    • http://files.firstsounds.com/uploads/1/3/0/7/130775471/lufesikipu.pdfIn PDF document text
    • http://files.rrwomensclub.org/uploads/1/3/1/1/131163859/waxokuro.pdfIn PDF document text
    • http://files.lincolnfencecontractors.com/uploads/1/3/2/6/132681938/7c5f525598fb.pdfIn PDF document text
    • http://waredarug.seekingthepast.com/uploads/1/3/1/3/131380042/2d8a2a8ca6f3.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/1/0437/8047/2984/files/xikisogepijepesijodetut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9234/4999/files/20068602262.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0736/1703/files/9899907028.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5225/3863/files/zapizeva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5207/2089/files/how_to_view_source_code_on_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4837/0333/files/goradarapazegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/17524121831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7355/1001/files/arduino_pulse_width_modulation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0062/6341/files/juleruti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7873/0403/files/safety_data_sheet_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6469/6738/files/balinuv.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
    • 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_off00006319.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6319 5764 bytes
SHA-256: bc57f46316a9f16d28163af31f9d2bfe1bdfc17cf38a3b8ab256f53597395dd7
font_01_sfnt_off000076a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76A9 1832 bytes
SHA-256: cd008f8d50b352213f06ba1f4b1b071cd966d7a6c71acff1aeabc275819a8311
font_02_sfnt_off00007f85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F85 9796 bytes
SHA-256: f588d2decaf05d8b6f72be08bf9d2924170ae82244915d9e6448b81a75450676
font_03_sfnt_off0000a164.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA164 16508 bytes
SHA-256: bf0029f2f65a8d03fc5bc6dac3f89872448ee76276b38fcd79a4881ba082e330