Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc5adbaa1076425c…

MALICIOUS

PDF

33.7 KB Created: 2020-08-17 09:43:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 94ce7e96d6415629e177294a6d2fa6bb SHA-1: 00510c2afa91517b7ff361d9718607476a164661 SHA-256: fc5adbaa1076425c57a4926c1523e4ef3ae252d5745803a7ad6d650a5368b212
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, many of which point to external resources. One critical heuristic firing indicates a malicious redirector link, specifically `https://ttraff.cc/pify?keyword=clairo+bags+piano+sheet+music`, which is presented as a lure for sheet music. The document body, though heavily obfuscated, also contains this URL. The presence of numerous links, including the malicious redirector, suggests a phishing or scam attempt to direct users to harmful content.

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=clairo+bags+piano+sheet+music In PDF document text
    • http://ledox.cindysearles.com/uploads/1/3/2/6/132681824/bovapurajutij-darufakomuka-bigujusopixidod-rikuredeletemas.pdfIn PDF document text
    • http://files.cornwall2theandes.com/uploads/1/3/0/8/130813747/vesodaresuvivevemab.pdfIn PDF document text
    • http://wixepe.thejgparksblog.com/uploads/1/3/1/6/131606731/zanawuwom-zuruziwaj.pdfIn PDF document text
    • http://files.concertinaman.net/uploads/1/3/1/4/131452840/xevowa.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/1/0432/8266/1526/files/printable_paper_house_craft_templates.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9094/3902/files/xetonapebewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4946/0636/files/50326611126.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5267/9836/files/1941_atlantic_charter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pagujusevidunevaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/orden_canellales.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1918/1978/files/agua_de_beber_partition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3584/1944/files/96807553572.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3150/9664/files/87676136651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9708/7390/files/dumudisamegifigikos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8828/9694/files/agroforestry_download.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 4

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_off0000479a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x479A 5392 bytes
SHA-256: c8b71ef74c718e88326bc32c57da2abf44855c50cda41b3918be4c853907409a
font_01_sfnt_off000059be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59BE 9492 bytes
SHA-256: 56fd62daf5208a3a914046474427a1ecb83fb086ab24e70e8648b1414c566c55

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