Malicious PDF — malware analysis report

Static analysis result for SHA-256 4dc34458230718e4…

MALICIOUS

PDF

44.2 KB Created: 2020-08-04 02:38:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 77b349649ae11f8fb2e5192d89cea717 SHA-1: 41aebb9eaaca02a56d5197ab0a3e5beab693568a SHA-256: 4dc34458230718e42b349d242c4295ba89f8e86548c95cb117988b8496605279
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, directing users to 'https://ttraff.ru/pify?keyword=the+financial+times+essential+guide+to+budgeting+and+forecasting+pdf'. This indicates a likely attempt to lure users to a malicious site. The document also contains a large number of external PDF links, characteristic of a link farm, further supporting the malicious intent.

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=the+financial+times+essential+guide+to+budgeting+and+forecasting+pdf In PDF document text
    • http://files.thehocklocker.com/uploads/1/3/2/6/132681951/xerawotop.pdfIn PDF document text
    • http://files.afterthefallinc.com/uploads/1/3/0/8/130874213/burifikivaberu.pdfIn PDF document text
    • http://files.norcalinjurylawcenter.com/uploads/1/3/1/6/131637043/28436fc96dafa.pdfIn PDF document text
    • http://files.argobaseball.com/uploads/1/3/1/0/131070712/jogalu.pdfIn PDF document text
    • http://files.yalenotredamelaw.com/uploads/1/3/1/4/131438639/6167786.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/1/0433/1778/8830/files/91342660779.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9241/8468/files/13162675123.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2726/5693/files/dafavanutevedeje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6491/8165/files/jerufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0939/9192/files/2013_chevy_equinox_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9861/9557/files/pebuwipivibisiliri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9702/2879/files/lagrande_oregon_weather.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xedatojif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8525/9159/files/geputukugevixegoxap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0981/0327/files/ages_and_stages_9_month_questionnaire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2744/8476/files/vexatuzajegepinudelel.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 7

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_off00006d3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D3D 5660 bytes
SHA-256: 31c8a48de143035950e3e82283ab9c661dd5ef23c054680197c9b134f4ac1ce6
font_01_sfnt_off00008049.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8049 10268 bytes
SHA-256: 2602272093737d7e7c150b81b5241ae225e42e4efbfe0e2829e0682d9e1ad3d9

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