Malicious PDF — malware analysis report

Static analysis result for SHA-256 a518e27a0ea8aa85…

MALICIOUS

PDF

37.1 KB Created: 2020-07-29 03:06:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 41c3c52967075134f5270b5304d19286 SHA-1: b93ba6ed06291098f108fbadfafc439500fdbe69 SHA-256: a518e27a0ea8aa852b62f1d6c58220ace34a7e145b4b691188c74cea511751b6
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with the primary heuristic identifying a malicious redirector. The document body, though heavily obfuscated, appears to reference 'Symantec dlp admin guide', suggesting a lure to trick users into clicking the malicious links. The presence of a malicious redirector URL indicates an attempt to lead users to a compromised or malicious site.

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=symantec+dlp+admin+guide+14.+6 In PDF document text
    • http://files.preservedsound.com/uploads/1/3/1/1/131163540/6823200.pdfIn PDF document text
    • http://files.lindarivervalente.net/uploads/1/3/1/4/131438079/2351236.pdfIn PDF document text
    • http://files.wolfeforgoodenergypud.com/uploads/1/3/2/6/132681164/ff2d9d15aa89a.pdfIn PDF document text
    • http://files.theriftny.com/uploads/1/3/1/3/131381540/xifujo.pdfIn PDF document text
    • http://files.bondkitchens.co.uk/uploads/1/3/1/3/131383588/4d98f18c.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/1/0432/4130/8320/files/zepadivaluwososonafenenad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96226605796.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1013/0073/files/4527922097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0156/0737/files/7296999361.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5511/1589/files/97072256592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7173/3917/files/xejeludaji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0408/2851/files/taxosunipogumupisabofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1734/6976/files/81248460491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3609/0267/files/45209420686.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8733/0464/files/83253559263.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7515/7670/files/43136094469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4946/8582/files/94647300788.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2287/5797/files/92412725578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2548/9305/files/19569850123.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_off0000542d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x542D 5424 bytes
SHA-256: 54e8e7bf8217388ee3d2d3db3ec1a13e7b1390220db1dc087378968cd7ca0a99
font_01_sfnt_off00006696.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6696 8976 bytes
SHA-256: 776687d25f00ef833e76eb8a4034186682d06bfc044de9c16c23b0545430e0b6

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