Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cd39982b35181b1…

MALICIOUS

PDF

34.4 KB Created: 2020-08-28 03:11:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e5eb8b604d028c04b5795c50eda4a2a0 SHA-1: 2a9b6327eb815147d69fb29c1a5514f035958d93 SHA-256: 3cd39982b35181b15e27dc5f3790d55a7b0ef0a63eca5bd8a13095dd1cb20acd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains numerous links, many pointing to a redirector service that is associated with malicious activity. The document body, though partially garbled, includes a URL that appears to be a lure for downloading content, likely a malicious payload. The presence of a redirector and a link farm suggests an attempt to distribute malware or phish for credentials.

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=descargar+tainted+love+soft+cell+mp3 In PDF document text
    • http://files.mayidesign.co.uk/uploads/1/3/1/6/131637177/nazinagusum-pifogit-pixosisib.pdfIn PDF document text
    • http://mutitosi.sisterssangha.org/uploads/1/3/0/9/130969521/rurodaduro.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/1/0431/1128/4893/files/sezodabos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5827/4205/files/92242644726.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5244/9435/files/kepugekumuwujexokugenis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1058/7800/files/gojidare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/6049/5263/files/27672528866.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/5995/5100/files/83707711855.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1460/9305/files/aghora_pashupatha_homam_in_telugu_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7829/5450/files/tudazerafobulofidulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1471/7597/files/jevuvuzile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9930/7673/files/85510065456.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7217/3733/files/tipos_de_cardioplegia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4804/9572/files/cub_cadet_ltx1050.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_off00004652.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4652 5700 bytes
SHA-256: b568e053ee82c0d908de5d81ae1060a78d7338f7ed7c57c5ab6ff3930692f597
font_01_sfnt_off000059a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59A6 10248 bytes
SHA-256: 944fec044c3d2a6930be601502ad8496b40d4239e00d2b34abb7d0445527e858

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