Malicious PDF — malware analysis report

Static analysis result for SHA-256 a12a3774d34a6654…

MALICIOUS

PDF

47.1 KB Created: 2020-08-05 14:26:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 37d2d0e132ea6b442d3bbbb8d733c31f SHA-1: 38035b8c287013a08912d578900d1621e0fa53c8 SHA-256: a12a3774d34a66548091a6435c3cfeedce0a045f6a2b7011036e1177ae8d3f7b
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.com). This suggests a link farm or SEO poisoning tactic to lure victims. The ML classifier strongly flagged this PDF as malicious. The primary attack pattern involves a deceptive lure to a malicious redirector.

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.com/pify?keyword=different+types+of+phobias+psychology+pdf In PDF document text
    • http://files.abdullah-francis.com/uploads/1/3/0/7/130740536/73527fd0901.pdfIn PDF document text
    • http://dunijude.muskegostars.com/uploads/1/3/2/8/132816202/dcc8efc4a6.pdfIn PDF document text
    • http://files.beyondseattleeats.com/uploads/1/3/0/7/130776096/fonaliwalanu.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/1/0434/0006/9285/files/nibs_college_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4542/8122/files/78597020778.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0665/6666/files/rodevakitij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rabilividobakomitunaxizug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7424/7069/files/64216318046.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1246/4550/files/understanding_augmented_reality_concepts_and_applications.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8424/2337/files/sybex_ccna_200_125_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0154/4863/files/giratekolara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3738/5123/files/jurnal_gymnospermae.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3519/7602/files/wudulezilumegidixokaxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6542/5570/files/xuxateselujiniwuwuxom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3817/8470/files/41603469819.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5793/8581/files/timemimuxunozowusamebo.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 4

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_off0000773c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x773C 5660 bytes
SHA-256: 07119b700b666c334bcace6177370843f7d5d7380a8e6d7812507106d105357b
font_01_sfnt_off00008a82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A82 10896 bytes
SHA-256: c54318312a6bb4444cfea2b951c4b11f1b60319f044ab3ec0666e31abb95d185

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