Malicious PDF — malware analysis report

Static analysis result for SHA-256 60ae3e59798a83d2…

MALICIOUS

PDF

42.5 KB Created: 2020-10-14 18:52:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 9064507c013d139185e25ab8649c078d SHA-1: f6db23cf96809967c307204c297a90dbbea5e1ef SHA-256: 60ae3e59798a83d2a666e113f98f57866e3180a618f40c792ff4df1e7caf7526
154 Risk Score

Malware Insights

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

This PDF document contains numerous embedded links, including one pointing to a known malicious redirector. The document's content, though heavily obfuscated, appears to be a lure related to 'Cctv camera installation book pdf'. The presence of a link farm suggests an attempt to drive traffic to malicious infrastructure, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://cctraff.ru/strik?keyword=cctv+camera+installation+book+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366043/normal_5f8716c524336.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365551/normal_5f86f582a6239.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365525/normal_5f870bf5678ce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366005/normal_5f86f416a9ff4.pdfIn PDF document text
    • https://jeponiruwapin.weebly.com/uploads/1/3/0/7/130776483/5870292.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/aa92d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365552/normal_5f87012143fb7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366376/normal_5f8716f9bd92e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365541/normal_5f870be803431.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7d0662a-bae2-4689-8b3f-3f21b20a3d3a/92617395064.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04ffa9cb-d520-4617-938a-3e6ea521a945/52511530226.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a3b691d-30bc-4f8e-9270-29751121dc8c/87524924789.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d2b1827-1839-4783-a92c-690730241e20/38800201480.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/1542/4158/files/enlightenment_thinkers_excerpt_john_locke_apush.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/2112/5792/files/foil_literary_definition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e0de6604-ff80-4792-89a1-f6d26a4a257d/95030564482.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d19150d5-6351-4675-9bf4-ff698aa5f5cd/wixutoz.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_off0000684a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x684A 5468 bytes
SHA-256: 40c2e09107be8c8f01171d1ada22d17c42bd8e825ebcc38d0ce1cb9cb92fe17c
font_01_sfnt_off00007ac6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AC6 9960 bytes
SHA-256: 93ffadfe4ab315a3c84acaebe72152fe2c6fbc0f93b19bc18f39004140de04d7

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