Malicious PDF — malware analysis report

Static analysis result for SHA-256 446c28907ce79120…

MALICIOUS

PDF

42.6 KB Created: 2020-08-22 11:49:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6e73f3e541b6fdc14550af84df4b4a53 SHA-1: 35a793be0f21da53464e22ea5f8eec627a98a5b2 SHA-256: 446c28907ce79120b7565c9c4729136d717633a5c7e2793a4bc754afb7bd5326
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=certificate+template+publisher', is designed to redirect users to malicious content. The PDF also exhibits characteristics of a link farm, with numerous embedded links, many hosted on Shopify. While most Shopify links are benign, the primary redirector is highly suspicious. No scripts were extracted, and the document body is heavily obfuscated, preventing further analysis of its direct intent beyond the malicious link.

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=certificate+template+publisher In PDF document text
    • http://files.sthomaskensaltown.co.uk/uploads/1/3/1/3/131383837/jofifina-vumiwaxu-pavapimik-kidexebuborelor.pdfIn PDF document text
    • http://files.learningaboutamericanhistory.com/uploads/1/3/0/7/130775197/goketited.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/1/0432/2371/1903/files/nemosafemamukulipanolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7097/9238/files/happy_birthday_wishes_song_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2328/6951/files/base64_encode_file_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5651/2676/files/superlative_adjectives_exercises_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6836/6760/files/anlise_e_interpretao_de_dados.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9400/7191/files/free_music_sheets_for_guitar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7243/8947/files/nununiwopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4157/0466/files/pudetomovijubogelex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4061/3286/files/wakfu_sadida_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8870/6717/files/19607164172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6522/0003/files/85347133648.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

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000630b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x630B 5300 bytes
SHA-256: 5fc67d8228c11476da37847c66740dc96df4ae446813fd17b84aa5044e2d1d24
font_01_sfnt_off000074db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74DB 13392 bytes
SHA-256: 33857eba68110f0ccdb45e8f7dd95c67b2857e094742ab3b25ec80434cbd4e11

Open this report in the interactive analyzer, or submit your own file for analysis.