Malicious PDF — malware analysis report

Static analysis result for SHA-256 2be45f6df760c70a…

MALICIOUS

PDF

43.7 KB Created: 2020-08-18 14:00:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5c20c3a9c18bce2a976a80585c863973 SHA-1: 6e7f58e975f7defb4e782a96645dc2839b1295a7 SHA-256: 2be45f6df760c70a1a9a764a6e6268496285b3ff15c2f183d2c2a3d3bb1b8ade
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, with a critical heuristic firing for a PDF link farm. One of the primary links directs to a known malicious redirector, ttraff.cc, which is likely used to obscure the final destination or serve malicious content. The document body, though heavily obfuscated, also contains this redirector 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=types+of+joints+in+sheet+metal+work In PDF document text
    • http://files.kathrynemyoung.com/uploads/1/3/1/0/131071076/porewuvofadaxa.pdfIn PDF document text
    • http://files.larissafall.com/uploads/1/3/0/9/130969873/namoralonosufirif.pdfIn PDF document text
    • http://zetejudib.ignaciocarballo.com/uploads/1/3/1/0/131070374/f548a6.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/1/0432/2469/4942/files/mathematics_for_engineers_a_modern_interactive_approach.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/3470/9914/files/ksiki_po_angielsku_dla_dzieci_chomikuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7213/5074/files/65643470138.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9848/1564/files/32543295319.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8451/3440/files/dotuwikebas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0921/1557/files/pekezafupalowix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/9218358057.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7419/0498/files/482959915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3352/5400/files/mafomujoxiratoxalazepaki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7103/6822/files/vefisuvov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8544/6824/files/46529887080.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5550/4795/files/dobajabulopavat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7002/9975/files/pufeligojerolijuvaxotajin.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_off00006dfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DFB 5424 bytes
SHA-256: 2ca996e1bbcaf046f8f68b58e960d4ed0d6a490bdb1016101d276ec9c9392c5c
font_01_sfnt_off0000805e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x805E 9848 bytes
SHA-256: 721e5f72e1fb200645ad0118c27965fd6b4b997e80f132d9aba582c5af78b00b

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