Malicious PDF — malware analysis report

Static analysis result for SHA-256 201dd1d2ae6ee59d…

MALICIOUS

PDF

45.0 KB Created: 2020-08-16 02:20:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f121376a4d877d0963514f7a1cb866e5 SHA-1: ca8afd181ffc78c3b497e06fbd6d94006fa522cb SHA-256: 201dd1d2ae6ee59d6803020d78639ea61f8061eba08f598dcfed6ae25ef969eb
194 Risk Score

Malware Insights

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

The PDF contains a prominent link to 'ttraff.com', which is flagged as a malicious redirector. The document body and heuristics indicate a lure to click this link, likely to download further malware or redirect to a phishing site. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute the malicious content.

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/wb?keyword=install%20lcov%20manually In PDF document text
    • http://files.landusesustainabilityjournal.org/uploads/1/3/2/7/132712185/2232703.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/1/0437/8787/8549/files/super_mario_63_unblocked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9581/8397/files/jaloregozasifesimanazep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0623/8613/files/practical_reliability_engineering_o_connor_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8090/8951/files/rukefowuvefesaxiniro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6372/1637/files/88798701840.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5847/0810/files/20130615481.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2362/8450/files/padisivifegozesoruvusoxop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6655/5557/files/38018108165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6107/4337/files/android_app_store_developer_login.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1297/9869/files/16642635411.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6006/0567/files/rusavidodimotawep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7706/5121/files/tascam_us-_144mkii.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 1

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_off00007258.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7258 4948 bytes
SHA-256: 76979843dbeeb059d798470526ac5ebf9feeb26dfee2df258523b436f3258120
font_01_sfnt_off0000831e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x831E 10628 bytes
SHA-256: 69aa07bc3c9b3f5508c12a1b1aa7262c0a40c7f10e578efd7f7cfadfb0feec04

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