Malicious PDF — malware analysis report

Static analysis result for SHA-256 017673f68dc352a8…

MALICIOUS

PDF

47.7 KB Created: 2020-08-23 14:00:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a737b325f6e7f3e34905036984ba686f SHA-1: c2de03266550a7dec16adeb676d4505260fadda3 SHA-256: 017673f68dc352a86325300330fb62b0b4a6d40a6db498bbaf7df88dfdc4e22c
194 Risk Score

Malware Insights

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

The PDF contains a deceptive lure related to firewall configuration, which redirects users to a malicious URL hosted on ttraff.cc. This URL is identified as a malicious redirector and part of a link farm, suggesting an attempt to distribute further malicious content or phish for information. The ML classifier strongly indicates maliciousness.

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=firewall+types+and+configuration+pdf In PDF document text
    • http://files.morimotodirect.com/uploads/1/3/1/4/131455475/c4442aca8e48.pdfIn PDF document text
    • http://porevowag.twobeinchili.com/uploads/1/3/0/7/130775364/rewesofekokibisu.pdfIn PDF document text
    • http://files.ashma.studio/uploads/1/3/1/4/131408027/gosaveju.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/1/0428/8679/1334/files/wonijeruxaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8704/4515/files/cochise_stronghold_climbing_guides.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1900/9189/files/bohemian_rhapsody_acordes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8737/9097/files/47391516374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8747/0485/files/965551091.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/6518/9019/files/cheque_mate_software_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2795/4853/files/85046086619.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/30553092986.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2174/6847/files/ropefe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2728/1558/files/89348208585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wimuwukewamofese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1083/9960/files/leputexadoj.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_off00007c3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C3F 5472 bytes
SHA-256: c9c6cfad525aa6a153b1a6d92a6bb6aea59f1a1875c01105dd8aef2c836c9750
font_01_sfnt_off00008efd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EFD 10176 bytes
SHA-256: d7172b7141e7f02640d96d736707c7bf6388b41311eeb1cdfcbeb9f8cf0e9026