Malicious PDF — malware analysis report

Static analysis result for SHA-256 63cb7ae222d125d0…

MALICIOUS

PDF

69.3 KB Created: 2020-08-11 21:04:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b7b4375dbebbccb4b604960e3209e6bc SHA-1: a0d5532b4017d4a28c9418c76507c5822f0ff0e3 SHA-256: 63cb7ae222d125d08a3f814438f14a3ce58e560c11056964881e2bdd1d45166a
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external PDFs, many of which are hosted on Shopify and appear to be part of an SEO link farm. One prominent link redirects through 'ttraff.cc', a known malicious redirector, to a page suggesting 'egglettes recipes pdf'. This indicates a phishing or scam attempt using a lure of free content to drive traffic to malicious infrastructure. No scripts were extracted, but the embedded links and redirector usage are strong indicators of malicious intent.

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=egglettes+recipes+pdf In PDF document text
    • http://files.odnws.com/uploads/1/3/1/8/131871799/pewotudaf.pdfIn PDF document text
    • http://files.davidcopher.com/uploads/1/3/0/7/130739225/xevanonotu-wiwifis-gojidul.pdfIn PDF document text
    • http://files.singularinsight.com/uploads/1/3/0/8/130874015/tifuxagadobaku_titiferemi_xipisufulit.pdfIn PDF document text
    • http://files.ineslampreia.com/uploads/1/3/2/7/132712326/0a2a2aa.pdfIn PDF document text
    • http://files.jonathanlipnick.com/uploads/1/3/0/7/130775009/7a45cae4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/24413790208.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/dofipemojujafadujif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6997/2384/files/category_theory_awodey.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4104/6171/files/27560730039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7836/6885/files/36931059393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8920/6174/files/pamudutasefewe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87932640634.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7922/0891/files/juparefowani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3030/5175/files/can_you_eat_sand_crabs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7437/8142/files/reassembly_ship_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4897/6027/files/admonitions_of_ipuwer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7245/4810/files/wufijekasikovibabowibib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3477/1610/files/wutefiman.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ee3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EE3 26760 bytes
SHA-256: e8ea80da0e9649baa017bfe5b87a8c0e20f7b5749341f027662e7c98dfebc5c4
font_01_sfnt_off0000c17f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC17F 4644 bytes
SHA-256: 2f62022cab600af2e7fc7e8012b0c5e4e2ca4e0064691c33e3d1bd7ad4c08397
font_02_sfnt_off0000d167.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD167 12568 bytes
SHA-256: 61a299b0ff85e3cd051b598fbc35ad8be6a62ce5901952c708384ecc463a7f1d
font_03_sfnt_off0000f9ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9CE 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f