Malicious PDF — malware analysis report

Static analysis result for SHA-256 395cd30faedc62a3…

MALICIOUS

PDF

54.3 KB Created: 2020-07-29 06:43:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 345054e37af4f0500cb98c4c66573002 SHA-1: 1c0b10c5d55334ca2b60b163a5213868b294d1d0 SHA-256: 395cd30faedc62a3a2f4d7d8f893a24394077cd36ca062e291950b59eee39b16
194 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The embedded URLs, particularly the one pointing to 'ttraff.com', are indicative of a phishing or malware distribution campaign. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the PDF structure itself is the delivery mechanism.

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=affairscloud+weekly+pdf+june+2018 In PDF document text
    • http://files.howdoesitlooklike.com/uploads/1/3/1/4/131438460/438984.pdfIn PDF document text
    • http://files.quaternityoga.com/uploads/1/3/0/9/130969761/7995705.pdfIn PDF document text
    • http://files.beginwithyourskinmedspa.com/uploads/1/3/1/0/131070378/7121771.pdfIn PDF document text
    • http://files.amaefresnomadera.org/uploads/1/3/1/3/131380308/6845636.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/1/0433/8273/5006/files/32461323730.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3802/3592/files/19912194171.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4975/4519/files/pinipenaxumojuvometovado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0223/2983/files/gemiripiraxovi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1596/9688/files/silajatawipitofepukobux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4494/4542/files/95531269146.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8187/6131/files/poxuxorogo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0501/7255/files/23170632223.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5564/3809/files/sufanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0839/3369/files/33606375748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2236/0481/files/rilelozimekorot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6970/9217/files/78787111344.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4852/5208/files/77583768876.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 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_off00009405.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9405 5796 bytes
SHA-256: 2c81530dc301d682489e6c88ea5256f3d51e6a9754ffdca436fd43a15b79bbfc
font_01_sfnt_off0000a7e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA7E2 10580 bytes
SHA-256: 368e5257c33884fca46b374c5d571f79050704fb4e3c888ad0917a8989672404

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