Malicious PDF — malware analysis report

Static analysis result for SHA-256 6127ff3115ee6e59…

MALICIOUS

PDF

41.9 KB Created: 2020-08-21 18:43:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ca4f9abba108812a761c51b546d5747c SHA-1: 6b29d9cac7eb09ffd8ac98b11e4312aed60015cf SHA-256: 6127ff3115ee6e5905556b3024a543dba268941b79e9f4a7dd2290a6863dcb36
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to redirector infrastructure. The document body, though heavily obfuscated, contains a URL that also leads to a redirector. This suggests the primary goal is to redirect users to malicious sites, likely for phishing or malware distribution. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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.ru/pify?keyword=school+uniforms+on+sale+cheap In PDF document text
    • http://beniw.joy-for-dummies.com/uploads/1/3/0/8/130874493/jorapa-bibupasam-vulubujuse-xevor.pdfIn PDF document text
    • http://tilatusix.mdccleaningservices.com/uploads/1/3/0/7/130775971/0489bd3e2e5.pdfIn PDF document text
    • http://files.symmetricallybeautifulbysalina.com/uploads/1/3/1/4/131438046/bixilifatima.pdfIn PDF document text
    • http://fusukako.mcnamaragypsies.com/uploads/1/3/1/4/131438500/f1410b439a3.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/1/0440/7679/4021/files/zazidenigukix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4643/6006/files/gejipapegajijuxusezuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2385/7824/files/hindustan_oil_exploration_company_limited_annual_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8158/1209/files/43990702521.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9767/6192/files/76205393513.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3446/8774/files/kusisorifiza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3171/4202/files/jotetopowamog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7321/6412/files/neolithic_revolution.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5657/8212/files/81007556852.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9928/2845/files/64494992916.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9455/7350/files/51812070288.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3518/1734/files/28907273310.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_off0000657c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x657C 5356 bytes
SHA-256: c5f1572b77c7c1b80083c7ed8493de4fa377db7406a5ad91e3a56313b9ab6f54
font_01_sfnt_off0000777a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x777A 10384 bytes
SHA-256: de158a007b0c4b0e7e7f36f22c2fa2df18224c9b4db259e89651875989d073da

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