Malicious PDF — malware analysis report

Static analysis result for SHA-256 11e1cf8f2ba46871…

MALICIOUS

PDF

33.6 KB Created: 2020-08-23 00:46:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 78f7fec08da56c85498ce6aa00d8148d SHA-1: 0d63bd8aa40eac3d209ffd0a9a1aec1b0baef604 SHA-256: 11e1cf8f2ba468717d94d97efd72fb1e3db059a4ff502f1683b1896156c5ff1c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, with a primary link identified as a malicious redirector. This redirector, 'ttraff.cc', is associated with SEO link farms and phishing lures, specifically advertising a free movie download. The ML classifier strongly indicated maliciousness, and the presence of numerous external links, including a link farm, supports a phishing or scamming attack pattern. No scripts were extracted, but the embedded links are the primary vector.

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=descendants+2+full+movie+free++mp4 In PDF document text
    • http://files.wakelandchoir.org/uploads/1/3/2/8/132814342/4ce02bacd7952.pdfIn PDF document text
    • http://files.kelseyeliason.com/uploads/1/3/0/7/130775846/1035434.pdfIn PDF document text
    • http://files.nbpeipublichealth.ca/uploads/1/3/1/0/131070633/3f7642a93d5.pdfIn PDF document text
    • http://files.bettycarlsonartist.com/uploads/1/3/1/4/131453015/2848707.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/1/0433/1329/9620/files/baxomopuwigodasegenuzez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2494/9153/files/cow_heart_dissection_worksheet_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/4213/8262/files/best_cv_format_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/6681/3590/files/banting_food_list_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7462/4419/files/javascript_array_push.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3818/7413/files/hornady_10th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7614/8638/files/82171734443.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9948/0473/files/45927913596.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/gakoradoxegenugidel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0084/7781/files/wadum.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 8

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_off00004463.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4463 5580 bytes
SHA-256: 7d50d69ecc40ff1823579bc1c607e491b42e3502906bc34ed1dbeab6052d3642
font_01_sfnt_off00005754.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5754 10012 bytes
SHA-256: ad8765bd59608aba19fa2478afbb875c319aa2b6a250d542ef746873e20898e0

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