Malicious PDF — malware analysis report

Static analysis result for SHA-256 7acfc62bca70a57f…

MALICIOUS

PDF

33.3 KB Created: 2020-08-21 14:02:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 98a51a7c1db70be6f2b491e1f723c0cb SHA-1: 147e13ed40ca9888f87dbaad46add7cf03cd4cca SHA-256: 7acfc62bca70a57feac256957753ab8b45c860c1f5baed2981886049046fb1b9
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector found by heuristics. This suggests the document is part of a link farm or phishing campaign designed to drive traffic to malicious sites.

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=latina+lasagne+sheets+woolworths In PDF document text
    • http://files.luckytakoyaki.com/uploads/1/3/1/0/131070702/wirabuwixol_rakamod_ludefifonikuge.pdfIn PDF document text
    • http://files.roguebches.com/uploads/1/3/1/1/131163667/lanotix.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/1/0431/1482/3834/files/all_falls_down_piano_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4923/8178/files/integrated_math_1_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6383/6834/files/dagotitogokinuzixuwaleg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1538/9855/files/dumovopegitu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3810/3962/files/zebokoridagesapevaxew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7207/5414/files/23227639209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5642/1278/files/95617130654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5085/2762/files/the_secret_doctrine_hp_blavatsky.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4251/2791/files/benefits_of_effective_reading.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7737/7946/files/synonyms_and_antonyms_11.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4479/8613/files/vefajebug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4145/5256/files/petrografi_batuan_sedimen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4741/1096/files/jolinukagaza.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 2

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_off000047eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47EB 4980 bytes
SHA-256: 25e213f7af650fcf429a87955c04e2a7b672fbeefd896d3debb599bfc98c7115
font_01_sfnt_off000058e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58E7 9124 bytes
SHA-256: 79bbe5b5985fba61fed6ffb7d4de845fbf7df2c485a5ef49589133520380dfd1

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