Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ca4b84a617af6c7…

MALICIOUS

PDF

43.8 KB Created: 2020-08-01 23:53:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 59fe36a59d4d2d7103dd8aa7a2ffc931 SHA-1: 7e23f00a972e3506dbe0ca0a19b70adf755725d2 SHA-256: 1ca4b84a617af6c71f476cfd5000830c17cc7b2bdf95e0eb8dee8c7cb8f2ace4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, forming a link farm. One critical heuristic firing indicates a direct link to a known malicious redirector, ttraff.cc, which is likely the primary malicious payload delivery mechanism. The document body, though heavily obfuscated, also contains the malicious redirector URL and several Shopify URLs, reinforcing the link farm and redirection attack pattern. No scripts were extracted from this sample.

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=lord+of+the+flies+litcharts In PDF document text
    • http://files.tarajanellephotography.com/uploads/1/3/1/6/131637211/gumatoligela.pdfIn PDF document text
    • http://files.burnsdayschool.com/uploads/1/3/0/7/130775772/4810633.pdfIn PDF document text
    • http://files.suderve.com/uploads/1/3/2/7/132740445/30210e.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/1/0437/6353/1933/files/gedidoxelepudusiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3909/6986/files/67725458794.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3571/3958/files/gebodozidilesupudepoxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8382/4294/files/bekorutolifipup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0462/4021/files/fejekape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3420/4568/files/bugipapewazepavu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6903/7982/files/38840113890.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27621352833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3015/1330/files/46766937156.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/88782157838.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/70339383958.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9452/2518/files/43273125431.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 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62EE 4732 bytes
SHA-256: c545f672077d0efb9687475af9d798fd82730c964b1e3697fff2cde59db7f101
font_01_sfnt_off00007314.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7314 9768 bytes
SHA-256: 8fccc7d9075339b7ece2dc3aaf5b2ef2400234c9c4668889eef340bc1f00d62d
font_02_sfnt_off00009480.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9480 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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