Malicious PDF — malware analysis report

Static analysis result for SHA-256 2714d5f271d8f096…

MALICIOUS

PDF

47.8 KB Created: 2020-08-06 22:06:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4339eba94cf85cedeab4be37eedbeef3 SHA-1: 139c6a3092044179e1b442ae52d0e504d4a847ee SHA-256: 2714d5f271d8f096692a8b7a7d437b55159364e792680b7a499ab62651e5ae2e
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.cc'. The document body, though heavily obfuscated, contains text related to 'selling on ebay for dummies pdf' and the URL itself, suggesting a lure. The PDF also contains a mass external link farm, with many links pointing to Shopify domains, likely for SEO poisoning or to appear more legitimate. The primary malicious IOC is the 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=selling+on+ebay+for+dummies+pdf In PDF document text
    • http://files.fullspectrumspeech.org/uploads/1/3/1/8/131857758/moxivevibutavemibe.pdfIn PDF document text
    • http://files.touchingchi.com/uploads/1/3/1/8/131856105/sekemidafulawip.pdfIn PDF document text
    • http://files.waubonsiestudent.org/uploads/1/3/0/7/130776416/woxuvegowosamugawon.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/1/0432/3724/5085/files/12283178244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1664/2975/files/62136950499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5407/8883/files/behavioral_finance_introduction.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6780/0736/files/a_b_z_dna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1715/0357/files/37026133149.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3483/7149/files/introductory_chemistry_5th_edition_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4919/5419/files/fernando_pessoa_obra_potica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4754/1146/files/9529168867.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7556/7770/files/muwixasulusarasiwabuviv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4744/3865/files/kelinutodezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3057/6278/files/junazufora.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 2

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_off00007bb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BB8 5704 bytes
SHA-256: 73aa2c3588badbbe32ea1208ec6abf0492a28678546bd4aa139f86e0f8ac9346
font_01_sfnt_off00008f16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F16 10396 bytes
SHA-256: 161f11908dac746154a00cf8392af79e358f70b2bada2cacfe9e17f55c91e58b

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