Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b2eb93c8540f432…

MALICIOUS

PDF

41.6 KB Created: 2020-08-12 01:01:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dca19466ffe113f2f706f77720f8d9d5 SHA-1: 38c5ef9c1d9505f5ee58dd81cf91782f52ab7975 SHA-256: 5b2eb93c8540f43208600c69a41c3f39d9d233d0f639be51bc71f7616c8fafc6
214 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, many of which point to a redirector service known to host malicious content. The document body, though heavily obfuscated, contains a URL that matches the redirector found in the heuristics. This suggests a phishing or scam attempt where users are tricked into visiting a malicious site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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=ganoderma+lucidum+cultivation+pdf In PDF document text
    • http://files.cordwainerproductions.com/uploads/1/3/1/6/131606546/bunusobod_lijuludelibale_vagiwukemiselum_nowowofogaxo.pdfIn PDF document text
    • http://files.fieldtocottage.com/uploads/1/3/1/0/131070561/valexerulifakivut.pdfIn PDF document text
    • http://files.spacepancake.com/uploads/1/3/1/8/131857115/8023250.pdfIn PDF document text
    • http://vuwukuxes.vega-2.com/uploads/1/3/0/7/130775320/pulesupis_kifoniwawijoj_lunevatij_vizobesura.pdfIn PDF document text
    • http://xatas.gitaarlesdamwoude.nl/uploads/1/3/1/6/131606490/a611d04b.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/1/0432/6916/1110/files/marathi_barakhadi_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2157/4044/files/4999132140.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/72138147751.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0695/0557/files/sosazitowenadoxeluraw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2883/9591/files/psychoterapia_poznawczo_behawioralna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1984/4258/files/1492724553.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1531/5349/files/zirewepinevano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4622/4551/files/toefl_pbt_practice_test_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/contoh_soal_medan_listrik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1496/3868/files/mapuwapunaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8451/2406/files/75476421806.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64B3 5212 bytes
SHA-256: 14ad83087f174a9233d7e4edc7ae549b2058ae1086dd9e34a8255fe733b15fc0
font_01_sfnt_off00007665.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7665 10248 bytes
SHA-256: f5fddb8e1dd416be13cf1641e8b0aa4b369564362700be97a543ae92ca92ad4a