Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4e0e878e0a7d9ca…

MALICIOUS

PDF

53.3 KB Created: 2020-08-06 10:08:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e1e837348a9b95ad2344a99ae1e9589a SHA-1: 2e1363eeec7d8bab891f12b3ab8eb682fbef18ae SHA-256: f4e0e878e0a7d9cab7b328557a2792e38ee0ab6bacb790c9a040cd0797e24a5c
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.cc). This suggests a link farm or SEO poisoning tactic to lure users with promises of free downloads, such as 'chronicles of ancient darkness pdf free download'. The ML classifier strongly indicates malicious intent, and the presence of a malicious redirector confirms the delivery of a potentially harmful payload.

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=chronicles+of+ancient+darkness+pdf+free+download In PDF document text
    • http://files.yotakrili.com/uploads/1/3/2/3/132303163/e12b0a1cf3be.pdfIn PDF document text
    • http://files.devinmgill.com/uploads/1/3/2/6/132695492/bcffeb90.pdfIn PDF document text
    • http://files.strawberryflats.com/uploads/1/3/1/4/131406403/62a031a2a.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/1/0433/1402/0505/files/tuworirim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4755/9066/files/oralb_triumph_professional_care.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6164/7262/files/94829239779.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0242/9593/files/62615607961.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7818/9205/files/lobedude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0217/4374/files/61964726274.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4116/8283/files/mesaji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7578/9215/files/wefujuwamozusajewojiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2384/2983/files/goruvadetedi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6415/6582/files/8236602672.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7369/1045/files/79293825657.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_off0000933a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x933A 5304 bytes
SHA-256: 8dfd7caa9b645e7852aa586b9d1e6ffe6e6b10831da003f20314f3e86352a94e
font_01_sfnt_off0000a54a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA54A 10308 bytes
SHA-256: 95d52662a3eb43009c1c2e0b02746b4c6415192749b83bae0e34f21e8dfbcb74

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