Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9c549d93f0d4913…

MALICIOUS

PDF

46.3 KB Created: 2020-08-03 12:10:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 320b5ecce2d73a297c7e0f5972539a12 SHA-1: 3013905a32c8d4940ab6342ee914e77f23d16513 SHA-256: a9c549d93f0d4913424624104daf79ddbfd19836553d46baf095fccfe7aa1607
194 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and contains a large number of embedded links, many of which point to external PDF files hosted on various domains, including a known malicious redirector. The primary malicious link is https://ttraff.cc/pify?keyword=things+i+wish+i+knew+before+i+got+married+pdf, which is likely used to redirect users to further malicious content. The document body itself contains garbled text but also includes the malicious URL, suggesting a lure or redirection mechanism.

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=things+i+wish+i+knew+before+i+got+married+pdf In PDF document text
    • http://files.foodloveblog.com/uploads/1/3/1/3/131380868/vosirijofa.pdfIn PDF document text
    • http://files.giorgioceccottidesign.com/uploads/1/3/0/8/130813413/nubazolufox-pewasovujum-wonok-milojekevuzaj.pdfIn PDF document text
    • http://files.freehomehealthaidetraining.com/uploads/1/3/0/9/130969498/7680844.pdfIn PDF document text
    • http://files.oceanlink-inc.com/uploads/1/3/0/7/130739850/4286650.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/1/0435/2468/5975/files/13429766154.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0119/2352/files/93114587625.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4134/2108/files/93269371194.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2620/3302/files/zujalegagabogak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7437/8138/files/16226377724.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9321/3852/files/bagiwusoporibelanav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0306/0128/files/55020526810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/34530012154.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8605/2504/files/30843692786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4228/3432/files/nugazijaduwemuwumu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0944/1953/files/91779881154.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_off00007547.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7547 5668 bytes
SHA-256: 41a724572f01cd30bcfb4cedbc13058d415a9e292a84e6d7b84c2cd91b6202b2
font_01_sfnt_off00008876.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8876 10388 bytes
SHA-256: 16a7f4c2ed444c5ebcb605502daaa85c9809c3d76f5f0a837a6dc79a278c441d

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