Malicious PDF — malware analysis report

Static analysis result for SHA-256 02327554fe039b6c…

MALICIOUS

PDF

57.0 KB Created: 2020-08-22 00:27:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b7bc1518abf8c846f8ed769f3a2b219c SHA-1: 8522dad41412ceb3a509d3c8a32680e7c02867a1 SHA-256: 02327554fe039b6c222c3d7bec9321b4d4f4f6a546caafc0a9644dfbc3093711
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by an ML classifier and contains multiple heuristics indicating malicious redirector links and a link farm. The document body, though partially obfuscated, contains a URL that is also present in the heuristics and IOCs, suggesting a lure to a malicious site. The presence of embedded links and the nature of the heuristics point towards a phishing or scam attempt, likely using a spearphishing attachment vector.

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=angularjs+convert+form+data+to+json In PDF document text
    • http://files.bikramstjohns.com/uploads/1/3/1/4/131453133/2af34f3fba6.pdfIn PDF document text
    • http://files.thecountryboutiquefl.com/uploads/1/3/0/8/130874588/zenonupa.pdfIn PDF document text
    • http://files.actioncomputerservice.com/uploads/1/3/1/4/131482931/fafuruxegagufa_lenokogazeraziw.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/1/0432/6280/4136/files/dalubopedoladowurigazow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0348/5092/files/clicker_heros_cheats.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57032902602.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4957/3784/files/hero_bike_spare_parts_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5735/6695/files/rsum_bel_ami_maupassant.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9461/3924/files/92859714914.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/garul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7274/8710/files/sales_and_marketing_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6737/4758/files/tajur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9015/3365/files/44867369066.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4445/4056/files/betobewokinowawawajimu.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 3

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_off00009643.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9643 5464 bytes
SHA-256: a5f2224b68b0f8ae5c7764a71f4b912f65c1f6f0973aba1d951d6e7c0e7ea09f
font_01_sfnt_off0000a8cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA8CD 14232 bytes
SHA-256: 02a197c7110a69b7b6304a94b1e47d81b0d3cd8b0e638665ba94836dc76451c9

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