Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c62620064527532…

MALICIOUS

PDF

46.5 KB Created: 2020-07-30 03:28:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 03c6ee45abc0dcf5906c518ba9da2a97 SHA-1: 7031d267d43bbd66a7c426cd0c0b4c477d91db4b SHA-256: 6c62620064527532b5879440c9c667644f19728ca82bf45ea0463abf3dec7784
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating it's a malicious redirector and part of an SEO link farm, specifically targeting users searching for 'aprender alem

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=aprender+alem%25C3%25A3o+gratis+pdf In PDF document text
    • http://files.devonicity.ca/uploads/1/3/0/8/130814115/7eb73e37.pdfIn PDF document text
    • http://files.myperformingarts.org/uploads/1/3/1/4/131453998/todiwunozix.pdfIn PDF document text
    • http://files.bondentertainmentservices.com/uploads/1/3/2/6/132696280/ritilok_farerazexa.pdfIn PDF document text
    • http://files.makingeverydaysacred.com/uploads/1/3/0/9/130969497/418c5.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/1/0429/8512/8099/files/75177263109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9732/5732/files/nagerofukimil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1631/4277/files/wokulidonika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3113/4365/files/mufojuturew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/16711599054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3251/8555/files/14960609827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3695/8106/files/63970486387.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5651/0616/files/90731095420.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7640/9751/files/44272607569.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3159/3113/files/33187687627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6143/5813/files/42396350385.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2689/8344/files/felewilozivewagawadiwukaw.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_off00007218.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7218 5456 bytes
SHA-256: a8f040b42d5165beaeb26dd3a59e4d4421eeed96bad2d4e04e2a0e0f7b57224f
font_01_sfnt_off000083ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83ED 12884 bytes
SHA-256: a320261fdd12b62737314a60c59c6a920d8030d01bc9bcf46353aab25049a2ba

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