Malicious PDF — malware analysis report

Static analysis result for SHA-256 89dd6b70f4fb5019…

MALICIOUS

PDF

47.0 KB Created: 2020-07-31 04:30:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 1bc95646ed175369452be3723d457079 SHA-1: b50b0ebcc3d3e873cc134f6543cb99380bd83b7d SHA-256: 89dd6b70f4fb5019ef01a65153956b74c7d16a954b631a02114c242e1a1175c7
194 Risk Score

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.com/pify?keyword=common+business+idioms+pdf In PDF document text
    • http://files.eleatdiningclub.com/uploads/1/3/1/4/131453902/1a8b0baa.pdfIn PDF document text
    • http://files.centennialconcrete.org/uploads/1/3/0/7/130740207/fogupokow_zerarozozefon_dibivamo.pdfIn PDF document text
    • http://files.inromatours.com/uploads/1/3/2/7/132712373/7305158.pdfIn PDF document text
    • http://files.fbbcelitenutrition.com/uploads/1/3/0/8/130815228/mejegunugese-xakajuwo-fibudiwewepi.pdfIn PDF document text
    • http://files.monikaoechsler.com/uploads/1/3/1/1/131163747/gikirudanaviwamujav.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/1/0428/3708/2271/files/vorolafonuxoxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0471/5427/files/jininote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sikotifukiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1356/2787/files/gaximanelobazufopotesu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6670/4550/files/puxiriveretabenepan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jakenetukuzalavat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5064/8223/files/92133192692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7301/1863/files/72080924154.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7435/5351/files/87522289429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1392/1189/files/46670625757.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_off00007c82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C82 4816 bytes
SHA-256: 1a4df7542afcceb1b5d942e07adf694a55a32e7cbdf5281260723eee0370fa03
font_01_sfnt_off00008cbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CBF 10052 bytes
SHA-256: db8fa0c6df11b680ff7c41ab076d1cc4c1ae28a281cb5e2bb8774a6cd6ff51ad

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