Malicious PDF — malware analysis report

Static analysis result for SHA-256 a17293e0e5037ebd…

MALICIOUS

PDF

91.5 KB Created: 2020-08-02 09:54:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1e14c33be338d2f2642049c86edee24e SHA-1: 921df6548e88682e6d4dfd7b20e1c7afdf09e2c5 SHA-256: a17293e0e5037ebd2636e704786133ad25a0632e3837a8d4e3811ce9839b9a85
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL. The ML classifier also flagged this PDF with high confidence. The primary attack vector appears to be a social engineering lure to entice users to click the malicious link.

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.com/pify?keyword=super+mario+bros+1 In PDF document text
    • http://files.colescountyanimalshelter.org/uploads/1/3/0/9/130969298/6e78395.pdfIn PDF document text
    • http://files.leslieslanguage.com/uploads/1/3/2/7/132740595/sexuviteru_wovilolewoz_sitelekoxiz.pdfIn PDF document text
    • http://files.qsime.com/uploads/1/3/1/4/131437670/4769251.pdfIn PDF document text
    • http://files.haleygarrett.com/uploads/1/3/1/8/131872178/5045211.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/1/0434/2631/6455/files/77102998711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2425/9992/files/dixanagesufero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1449/6161/files/74508805620.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9606/3652/files/95056543287.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9875/0629/files/fefezemowapujitalixixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5625/1555/files/joxitomisoxureze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3353/4357/files/xupatalotikuliwuxowatojat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9565/4554/files/rigeji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4096/4759/files/34244653434.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 7

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_off0001172c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1172C 5512 bytes
SHA-256: dd01f081210ef784f77c591e25badd43fd44368e1c4919275605d4a0beabd3db
font_01_sfnt_off00012a06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A06 5228 bytes
SHA-256: 7cf188d9196f59ccd39c27b69bdd015b26d8e92921d0ef4406b7852299a0f4fa
font_02_sfnt_off00013bb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13BB0 10876 bytes
SHA-256: 3000187f4f13bb3e6e4a8005e67e34041f46ac934a22689509974c132417e757

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