Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3afa208a551f2ed…

MALICIOUS

PDF

50.3 KB Created: 2020-08-23 13:56:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bda62efe839dbb4ea4f6a77244884042 SHA-1: 53593721f2f25c45ab66ec57c8a190c9f2888dc0 SHA-256: a3afa208a551f2ed73871af9afa637655853a8ceb38f9386d682feaa1aec1f4b
194 Risk Score

Malware Insights

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

The PDF was flagged for containing a malicious redirector link and a large number of external PDF links, suggesting a link farm or phishing lure. The primary malicious URL identified is https://ttraff.cc/pify?keyword=education+blog+templates+free. While the document body contains garbled text and what appears to be metadata, the presence of the malicious redirector is the strongest indicator of malicious intent. 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=education+blog+templates+free In PDF document text
    • http://files.crescentbaydollfanciers.com/uploads/1/3/2/6/132695492/aad70.pdfIn PDF document text
    • http://files.edtechcoop.com/uploads/1/3/1/3/131398322/susobed-senana.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/1/0428/9835/8432/files/58143530911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3258/4098/files/75854131160.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7249/5519/files/bosapafarafegax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1466/8959/files/67599652355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/0975/3507/files/wound_care_management_clinical_practice_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3293/6605/files/28269924543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8993/6025/files/an_inspector_calls_characters.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9263/0947/files/59011508350.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4209/2694/files/fiwerodoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5557/1353/files/xazovedokalekulojimut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7468/0987/files/negediwo.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
🗂 Part of campaign: crescentbaydollfanciers.com 4 samples

Related samples 5

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_off00007b14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B14 5572 bytes
SHA-256: 2fd44753ed7074fbb5205ffd1e966218142050386f27e2e507d7f0fd161b4ad3
font_01_sfnt_off00008dec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DEC 15056 bytes
SHA-256: efc7239af84ed1bdc835fc4a7e82a0d1c5948a586c6359d163ae905a1f177d0e

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