Malicious PDF — malware analysis report

Static analysis result for SHA-256 308e8ecb724e98bc…

MALICIOUS

PDF

43.3 KB Created: 2020-08-15 03:21:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d16115b667d7d53aad925710f8e0a762 SHA-1: 2e877cd5f6e4c66457b0e91ec384563a8dea981e SHA-256: 308e8ecb724e98bced797a73a4e53fdc9f31a6e1cddeccef368d2d9f0e8f1580
202 Risk Score

Malware Insights

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

The PDF document contains a lure for a 'management summary excel template' and includes multiple embedded links. One of these links, https://ttraff.cc/pify?keyword=management+summary+excel+template, is identified as a malicious redirector. The document also contains a large number of other PDF links, suggesting a link farm or SEO manipulation tactic. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=management+summary+excel+template In PDF document text
    • http://niwuk.emilyannhill.com/uploads/1/3/1/3/131379362/4207554.pdfIn PDF document text
    • http://files.skateteamindy.com/uploads/1/3/1/4/131406412/zodem.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/1/0430/7560/0535/files/retidewepobutiture.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5018/0503/files/prozac_nation_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4314/1270/files/asking_and_giving_directions_dialogue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9954/6009/files/clothes_and_appearance_vocabulary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4315/1272/files/6538410098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1488/0405/files/nolumenonixenupojape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5054/7870/files/warhammer_40k_deathwatch_codex_vk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7027/5237/files/fasisezedir.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C67 5428 bytes
SHA-256: 73558e5c756b8697f15e2b51a78add0eeafde9cc230c9d82083b926624b15c32
font_01_sfnt_off00007eda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EDA 9976 bytes
SHA-256: a96ae34cff2c2f6176a1b6061902f91cc69f9479d7222b99ddeb207e4afb8b81