Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3e2dca077438eac…

MALICIOUS

PDF

42.8 KB Created: 2020-09-13 03:48:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6e6216e0863969395cf9adcffffd58e5 SHA-1: b0e094854e0ea2fcb768942b65a7fd0a5099f1da SHA-256: f3e2dca077438eacfd8b188385c6dac8f5709b1121a03517257c0cb6c9356ff1
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as legitimate PDF downloads, but one of the primary links redirects to a known malicious redirector. This indicates a phishing or scam attempt to lure users to malicious infrastructure. The document body contains obfuscated text and metadata suggesting it was generated by wkhtmltopdf, a tool often used to create malicious PDFs.

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.link/wix?keyword=how+writing+works+pdf In PDF document text
    • http://sudavut.dctrombone.com/uploads/1/3/2/3/132302921/tanejemoninipotoxegi.pdfIn PDF document text
    • http://files.mnjrc.com/uploads/1/3/1/0/131069978/naluzoke-kadarovet-metinuso-davujawutu.pdfIn PDF document text
    • http://fuletub.trinitywellnesscharleston.com/uploads/1/3/0/9/130969525/mobotumape.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/1/0430/6780/1749/files/659980670.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2174/5822/files/zasonasowelazetozif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4077/5071/files/56544653732.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/cd1d52_05f8f0e0f0f34114817bbe4827e5dbb2.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/dc8a8e_8ebdcec16b3d4dc9a9dbf375a7c5f215.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0360/8216/files/sefabafupesumurat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3165/7638/files/pesiveboxopitan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1311/9905/files/51619563257.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 8

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_off00006abe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ABE 5084 bytes
SHA-256: 02315f5c937c52d52b1751b193601b922e257e58ec49b9af5d37d3489ef3f4bf
font_01_sfnt_off00007c35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C35 10272 bytes
SHA-256: 0ba903de78569cfa6c4aad448f8d353b9b652760cc3ca5a71fefb1c83362d3b2

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