Malicious PDF — malware analysis report

Static analysis result for SHA-256 890c59b41c156500…

MALICIOUS

PDF

41.1 KB Created: 2020-08-13 23:00:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 10e9fda424b5b24217d800ede06a9002 SHA-1: 226509cce6b724c0b7885bdc304b1fc4d5345572 SHA-256: 890c59b41c15650078b3858ad238aa779d1c5dafc7accaaf1dc24e2dffb1fd75
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL, suggesting an attempt to lure users to download files under the guise of free templates. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs points towards a phishing or malware distribution scheme. 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/pify?keyword=microsoft+word+2019+calendar+template In PDF document text
    • http://files.sunkissedhairco.com/uploads/1/3/1/4/131437474/pozudidigolon_devog.pdfIn PDF document text
    • http://files.hatfieldr.com/uploads/1/3/0/8/130874683/xiligilepezotiz.pdfIn PDF document text
    • http://sebabax.buhrmasterfarms.com/uploads/1/3/0/8/130874359/wagolejon_ratisotisuniv.pdfIn PDF document text
    • http://files.addisontreeremovalmemphis.com/uploads/1/3/2/6/132680813/pijidopetatasu_lagexoso_dumozobuvur.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/1/0432/2571/0750/files/mitodozakax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8044/1238/files/purabikufokelatuxedurepo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1903/5033/files/godimovim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9471/1203/files/vmware_fusion_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8893/7120/files/62631089952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4492/0734/files/cash_flow_statement_problems_and_solutions_direct_method.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9725/1235/files/kuwivuderixurofugilexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6517/0334/files/arithmetic_sequence_problem_solving_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8482/3205/files/today_sandesh_newspaper_ahmedabad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7703/4399/files/patujusumedarumugigagejen.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_off00006126.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6126 5880 bytes
SHA-256: 8e8813aa7e9a68e97c07277f9a3d97b9888dd6708934189102d67b54a2b69916
font_01_sfnt_off00007528.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7528 10064 bytes
SHA-256: 56bdd32de3ff1275e7e9253879a242247826ef21c5061ee20ccc3421f9acab85

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