Malicious PDF — malware analysis report

Static analysis result for SHA-256 52380ca11ac71706…

MALICIOUS

PDF

44.8 KB Created: 2020-08-10 09:33:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: acac5ee75d7044307a4a2fae3cd01287 SHA-1: c9339e6b9998de517767af8ee4386fbab2380b30 SHA-256: 52380ca11ac71706dfea705223bfe4012371d06091e5b659b14b02de1a7e452a
202 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, pointing to 'https://ttraff.ru/pify?keyword=counselling+skills+for+health+professionals+4th+edition+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links hosted on cdn.shopify.com, including one identified as 'https://cdn.shopify.com/s/files/1/0428/1021/2519/files/lojuwazavawesavewefukow.pdf'. The document body, though partially corrupted, includes text related to the PDF's purported topic and the malicious URL, suggesting a social engineering attempt to drive traffic to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=counselling+skills+for+health+professionals+4th+edition+pdf In PDF document text
    • http://files.calgaryruralmedicine.ca/uploads/1/3/0/7/130775370/redixenizog.pdfIn PDF document text
    • http://files.newelhunterart.com/uploads/1/3/0/7/130775033/dofosupiri_dejareviferos.pdfIn PDF document text
    • http://files.goldencrossagservices.com/uploads/1/3/0/7/130739456/kanoposatoravor.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/1/0428/1021/2519/files/lojuwazavawesavewefukow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6224/8095/files/balaji_aarti_download_in.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3963/8179/files/77324316931.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7252/0352/files/pumutovomeret.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5420/2013/files/6691218964.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6728/5408/files/57325234676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5699/6245/files/69090637530.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6568/7717/files/64455383823.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0776/9750/files/67776623960.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7554/1919/files/7703956463.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7063/6710/files/90082099510.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 6

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_off00006fec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FEC 5360 bytes
SHA-256: c23d93eb7fc776c59773859610b825dd21ce4542f2ff5f41942264951604800c
font_01_sfnt_off00008224.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8224 10512 bytes
SHA-256: cfec1e896015584d52847510da39fb79d96b7d58834a1360f0d04e18ed059c23

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