Malicious PDF — malware analysis report

Static analysis result for SHA-256 192feaaa959ec103…

MALICIOUS

PDF

40.2 KB Created: 2020-08-08 20:33:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 668bd1a27d624577e24e24ec7ac852d2 SHA-1: 466756b2cd05dc49f2b2cb92a9babe8914382330 SHA-256: 192feaaa959ec103f166f3020bca89ddc59ac7329032b5992d4ef4ce7c3319c0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically `https://ttraff.cc/wb?keyword=proyecto%20arquitectonico%20de%20una%20casa%20pdf`. This technique is often used in phishing campaigns to obscure the final malicious destination. The ML classifier also strongly indicated 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/wb?keyword=proyecto%20arquitectonico%20de%20una%20casa%20pdf In PDF document text
    • http://files.freemeditationnz.com/uploads/1/3/1/6/131606073/2917448.pdfIn PDF document text
    • http://doxesenev.tenthstreetmiscellany.com/uploads/1/3/0/7/130738720/5dd963180.pdfIn PDF document text
    • http://files.dyw-edinmideast.com/uploads/1/3/1/4/131454270/bc8986b.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/1/0430/6727/7469/files/85966492648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2668/5858/files/resegenivusoruzobomo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6499/0632/files/76189782100.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/83390791822.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1915/8183/files/lededuzi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3699/9831/files/pesogakamuwaxetoduluduli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3461/5706/files/55856042816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6038/8252/files/76281072876.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2750/4031/files/42154503964.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7202/7814/files/pifukepaloramoxokapu.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 6

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_off00005d1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D1E 5344 bytes
SHA-256: 12b7e4a92181327cdb6798cede63941574f25b4e8d7fe1014b5b278182e9c515
font_01_sfnt_off00006f61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F61 10740 bytes
SHA-256: 189a010e5610da622ce448cf0c731733bce96e8618573a6f2e070a9415ad58cc

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