Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cc2edd3f2c13f3b…

MALICIOUS

PDF

46.2 KB Created: 2020-11-01 11:00:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 5bf6796dea4cd50b14647c225b6d6488 SHA-1: 90e8a0a6158888c18e995b9e0ffdad1c3d9158aa SHA-256: 3cc2edd3f2c13f3b69ed7c14b2c3ceecc9897537ae4b5b617c815f16f84bafe9
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded links, many of which point to external resources, suggesting a link farm or SEO manipulation tactic. One of the primary links, https://cctraff.ru/aws?keyword=read+the+lord+of+shadows+online+free, is identified as a malicious redirector. This indicates the document's purpose is to direct users to potentially harmful websites.

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/aws?keyword=read+the+lord+of+shadows+online+free In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368781/normal_5f8df871f0139.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/1/0479/9954/9599/files/xebovomalapivabe.pdfIn PDF document text
    • https://s3.amazonaws.com/xazarujokemus/lattice_privacy_screen_diy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/6488/3861/files/minecraft_0.13.6_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/6923/3094/files/honda_civic_2020_manual_book.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/9408171777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/0660/6498/files/absorption_spectrum_for_chlorophyll_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/8213/6734/files/8283074578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/9136/8376/files/project_topics_on_sociology_of_education.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/0105/2836/files/instagram_page_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9553/1424/files/92675818410.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_off000076ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76AD 5096 bytes
SHA-256: c5a3cddb724bf95f2b8b8b67def261d96b7fe43a1ca980ec3ad3800de3e4b69a
font_01_sfnt_off0000880e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x880E 10496 bytes
SHA-256: ea132b08a4ec1548c81698484ff28947c6ec6ef830afb95b5af98e5ac428b163

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