Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeef5abbe5144ae8…

MALICIOUS

PDF

57.5 KB Created: 2020-08-10 20:40:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b912ee2f8af6113c230ed6614930b059 SHA-1: 708751c7a4c3dee290dea30c69667c40608779ce SHA-256: eeef5abbe5144ae897d68e78172c84cdee64bef5f70bb08d3603172182ce0bd0
194 Risk Score

Malware Insights

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

The PDF contains numerous links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.cc/pify?keyword=convert+base64+string+to+pdf+javascript'. This redirector is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, contains references to base64 string conversion and PDF JavaScript, aligning with the redirector's keyword. The presence of a large number of external links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to increase visibility.

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.cc/pify?keyword=convert+base64+string+to+pdf+javascript In PDF document text
    • http://files.innerjourneycanada.com/uploads/1/3/0/8/130813524/6eb5a836e19.pdfIn PDF document text
    • http://files.developass.com/uploads/1/3/1/3/131383483/9914529.pdfIn PDF document text
    • http://files.macsnapshot.com/uploads/1/3/1/8/131856498/nakunexedod-xafovowovivu.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/1/0431/3320/6690/files/44301920492.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9833/3599/files/zip_code_to_lat_long.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4933/7500/files/23350430961.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4016/2467/files/2779350039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3436/9438/files/the_kite_runner.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7240/6179/files/persona_4_max_social_link_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2865/9880/files/mitevokorugito.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8983/6697/files/19334175954.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/92835403356.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3882/6918/files/kilisigobazidijarova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3736/6174/files/alienasi_karl_marx.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4722/3458/files/tesezuwarumovezisuxugik.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_off00006b0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B0A 5716 bytes
SHA-256: e5a9a2721ac2254513b4976645d8262caab78938add62174d41e642597b3f37c
font_01_sfnt_off00007e97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E97 4064 bytes
SHA-256: 7ef4102b71f3d9d5404aa0ddfc9d589a9f0a05f41c66934d062ec4b237e0e730
font_02_sfnt_off00008e2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E2A 15896 bytes
SHA-256: 2cbae015f6810cafacaa7e275895985729ae947a76c088f16063dcfedfd7a000
font_03_sfnt_off0000c0a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0A9 16756 bytes
SHA-256: 2660e3f19262e0c1c514f7a0045fa503cee1831b49ccf21a997877b0058606e8