Malicious PDF — malware analysis report

Static analysis result for SHA-256 afa83c89c6580c1b…

MALICIOUS

PDF

43.8 KB Created: 2020-08-26 13:32:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e6c119c5c6ce6b7412182b88d1846fc6 SHA-1: f40170d3ecb130f3be07108127c76b1669cc6bce SHA-256: afa83c89c6580c1b39fbb17a655c4df1af4cfc8c01628572ec4161c64fd386fc
234 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL and numerous other links, many hosted on Shopify, suggesting a link farm or redirection strategy. The ML classifier strongly indicates maliciousness. The primary attack pattern involves redirecting the user to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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=5e+illusion+wizard+guide In PDF document text
    • http://kigelosog.robertsiteach.org/uploads/1/3/2/6/132682883/nupate-tilazopeb-wadedok.pdfIn PDF document text
    • http://files.windowviper.com/uploads/1/3/1/4/131455903/zuxoxubas.pdfIn PDF document text
    • http://tuvuvu.larchmontmamaroneckfootballclub.com/uploads/1/3/1/4/131408791/680b788e1578.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/1/0429/9119/0167/files/datacion_con_carbono_14.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3749/1357/files/repazekugapepom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8127/7342/files/hello_in_korean_language_informal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9306/5881/files/it_inventory_template_xls.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2564/4192/files/mibitosovetexanotab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9286/0327/files/zakimup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1332/5471/files/togorogolegaxuwap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8790/5446/files/bobovisesute.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3785/9735/files/accounting_golden_rules_with_examples.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F16 5164 bytes
SHA-256: c6cfefc0d4c06932b73141420e386b2c6c3287023968a1e340bc9620998c9f36
font_01_sfnt_off000080cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80CC 10004 bytes
SHA-256: 8297ba21aa9b0fd97b25cfd58b2d40ce1d92bea2b41882686ef42ca3d0249ea2

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