Malicious PDF — malware analysis report

Static analysis result for SHA-256 5270210bc2527f85…

MALICIOUS

PDF

45.7 KB Created: 2020-08-22 02:30:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c70a88a4f7cd8abca8fb9a504347f082 SHA-1: 0ae4cdf6c4bffb7a489d381e5a005a88acdc7854 SHA-256: 5270210bc2527f85ae9604b5fbf4e3c4a06dbed7a19f45c5955534d2c433849f
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary link directs to 'ttraff.com', which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains the same URL, suggesting an attempt to lure the user to a malicious site. The ML classifier also strongly indicated maliciousness.

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=genotype+phenotype+worksheet+middle+school In PDF document text
    • http://files.laspinashouses.com/uploads/1/3/0/8/130814605/92f7d97.pdfIn PDF document text
    • http://ludavo.twincityphotography.com/uploads/1/3/0/8/130814328/2783753e704d5.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/1/0428/3233/0908/files/mogufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8234/2815/files/bella_bestia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8544/7833/files/wozenajaderol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1737/9745/files/sajewasog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9748/9572/files/97765586400.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8664/2338/files/horse_drawn_carriage_crossword_answer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0496/0676/files/83440459303.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/6372/5480/files/candis_cayne_as_brendan_mcdaniels.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3549/9418/files/60804247542.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4971/1781/files/black_australorp_chickens.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: twincityphotography.com 3 samples

Related samples 6

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_off0000737d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x737D 5392 bytes
SHA-256: fce55e592e9ce97293264dabfab5eaa3256830bfdc2259a7e34f19f5a322e37f
font_01_sfnt_off000085c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85C5 10592 bytes
SHA-256: 6e06c9be5c6575bd1429486e2ef23f2476b411b7414cc78bb447f547d3b20b38

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