Malicious PDF — malware analysis report

Static analysis result for SHA-256 52889af8eec1ff12…

MALICIOUS

PDF

39.9 KB Created: 2020-10-28 22:41:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 5864b849a4db5b6514ffa2221f0e8969 SHA-1: 3cc78668bb50b0d176ad5329409f2976459a72a1 SHA-256: 52889af8eec1ff121dffbd8009ef3a4595381c288fda0a2f758bb2e4fe181208
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged as malicious by an ML classifier and contains a link to known malicious redirector infrastructure. The embedded URL, https://cctraff.ru/aws?keyword=healing+by+design+scott+hannen+pdf, is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted, but the presence of a malicious link strongly suggests a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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=healing+by+design+scott+hannen+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4418590/normal_5f99cb07b10ac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365580/normal_5f8745e6a4acb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413707/normal_5f94753dd9af4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366661/normal_5f871fdde22fa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365998/normal_5f8718afa5543.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391599/normal_5f920a5b9b1b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375896/normal_5f909c7ad9c4e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/cb3afa33-7a07-4e03-8246-79ddbfa2e0ca/vukazuxusopajozi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7e20188-f584-45cf-ae99-c331d404d3db/nolabokivu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b93e916-4132-4556-8ab0-4db96349be45/godavog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b3e1d05-66c7-4b8c-9d94-5c910543746f/bexazubodi.pdfIn PDF document text
    • https://s3.amazonaws.com/sojuravewi/air_pollution_information.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/212230a1-dcef-4527-b7c2-011c409ee11d/56748754081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8307/1650/files/73534554471.pdfIn PDF document text
    • https://s3.amazonaws.com/saziwijaxodav/wobuboxazonaza.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/69c91d39-db4d-4cc6-9dc5-bfd94e12c1cb/pathophysiology_made_easy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2c7db45-467a-40bc-8254-aed9d74c0efa/89148789329.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005022.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5022 5312 bytes
SHA-256: 4f4b5ec523f898d6bb6bde50f42650c5a81d189ccca8e222ae1dd917e3e2ca9c
font_01_sfnt_off00006228.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6228 10088 bytes
SHA-256: 8e61364f799bb1cd6dcc39388925b7a10e5bb02f2a9d4cd51cf986a11fbce276
font_02_sfnt_off00008480.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8480 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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