Malicious PDF — malware analysis report

Static analysis result for SHA-256 477b66ee1c371779…

MALICIOUS

PDF

55.2 KB Created: 2020-08-11 07:03:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9946da171d7cde4d3524421eab519b2c SHA-1: 0146701d998af37babe64f632fda15970d57adb7 SHA-256: 477b66ee1c371779f819fa82ee3eca356f096006caead79586932a7afd753efd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'ce certification requirements pdf' and the malicious URL, suggesting a lure. The presence of many external PDF links, including one to a Shopify domain, indicates a link farm strategy. No scripts were extracted from this sample.

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/wb?keyword=ce%20certification%20requirements%20pdf In PDF document text
    • http://files.2peter24.com/uploads/1/3/2/6/132682802/loxif.pdfIn PDF document text
    • http://files.rhosarts.com/uploads/1/3/1/4/131438217/litutote.pdfIn PDF document text
    • http://gofodewim.akashaholistic.com/uploads/1/3/1/1/131164250/pulaw.pdfIn PDF document text
    • http://files.christinaangelafisher.com/uploads/1/3/1/6/131637325/pomajaz.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/1/0428/9835/8432/files/fofigez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2986/3320/files/angoisse_dfinition_psychologie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8360/4903/files/selection_sort_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5050/8194/files/buzzer_datasheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8177/6795/files/vipavoxeruli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1195/6126/files/99886771414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7473/1685/files/wages_and_overtime_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5119/6314/files/kejowofosibaxumibinali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3906/4225/files/sasofipuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8328/4136/files/46775200276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2729/2582/files/mejidumamumel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5415/4406/files/minigeguw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8502/8758/files/5829436198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4759/8742/files/wulurowixi.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_off00009a4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A4B 5300 bytes
SHA-256: 5a6b23bad01165724099392a8b93cef8483bcee31e5ba56df6ab64e6b3cc5e29
font_01_sfnt_off0000ac2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAC2C 10404 bytes
SHA-256: 7dabac44f4447ae2eb3b9ad64eeeb9fd5ee6bef28441da50322652b6e266a65c

Open this report in the interactive analyzer, or submit your own file for analysis.