Malicious PDF — malware analysis report

Static analysis result for SHA-256 caf68eff4e2ff264…

MALICIOUS

PDF

42.3 KB Created: 2020-08-16 20:04:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e415fe5df6e0b511967851bc58d06656 SHA-1: 5faf52391f4eaa7e3848a22026755dc1338f92e7 SHA-256: caf68eff4e2ff264b7ca22a6294a75c7c0e18977338016b9afd83942f46781c9
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, disguised with a seemingly benign topic about fashion careers. The ML classifier strongly indicates maliciousness. The PDF also contains a large number of external links, many hosted on Shopify, suggesting a link farm for SEO poisoning or to obscure the final malicious destination. No scripts were extracted, but the primary attack vector is the malicious URL.

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=information+about+career+in+fashion+designing In PDF document text
    • http://kurapez.davaocityproperties.com/uploads/1/3/2/8/132814930/7b45369db.pdfIn PDF document text
    • http://files.emhager.com/uploads/1/3/0/8/130874110/zilusujumerilavile.pdfIn PDF document text
    • http://files.grassroots-institute.org/uploads/1/3/1/6/131637419/94a680aed.pdfIn PDF document text
    • http://dipituxop.rusticchalkdecorshop.com/uploads/1/3/0/7/130775085/binomenitotuwobe.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/1/0434/5505/3989/files/98552070558.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2925/0719/files/ziwafivali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/22271122494.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8955/8680/files/10917598724.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37237973095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2122/2567/files/adrenal_gland_hormones.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4937/7174/files/55361823734.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9221/3911/files/24165951322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0564/8807/files/accounting_and_financial_management_notes_for_mca.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/7878/2869/files/tomuwototidaweruvelotag.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_off00006571.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6571 5480 bytes
SHA-256: 7f6c0486aa8b959e2e688714963268f12687ceb3d51fd1e98479bfe3e85b1a62
font_01_sfnt_off000077da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77DA 10692 bytes
SHA-256: 7f1b87ce144a5c201c5fd38612640017fbad48cb64dedaaca7d55417dd87aeab

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