Malicious PDF — malware analysis report

Static analysis result for SHA-256 2047c7046712c89e…

MALICIOUS

PDF

38.2 KB Created: 2020-10-31 07:38:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 38f3f435ee9609ddd1957a5dd21c65f3 SHA-1: c095c30a2c6952fbf25c36a0a29309af3ecc9339 SHA-256: 2047c7046712c89e0d3029807ab0a399410fb137e15b1be4c34aa227154e77fd
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, with a critical heuristic identifying it as a malicious redirector link farm. The primary link, 'https://ttraff.me/123?keyword=quaver%2527s+marvelous+world+of+music', is a known malicious redirector. The document body, though heavily obfuscated, contains references to music and educational content, likely serving as a lure to disguise the malicious intent of directing 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://ttraff.me/123?keyword=quaver%2527s+marvelous+world+of+music In PDF document text
    • https://cdn-cms.f-static.net/uploads/4367667/normal_5f89a2df8e53f.pdfIn PDF document text
    • https://jovikuveditowe.weebly.com/uploads/1/3/0/8/130874612/1359114.pdfIn PDF document text
    • https://bavejojonosepes.weebly.com/uploads/1/3/1/3/131380601/lirerezukerapuka.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368997/normal_5f9cb8271ee0d.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/1/0500/0386/9856/files/11668088294.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/680bd7a5-4068-4e2d-a40e-24d1e811a249/dufija.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0493/6341/9302/files/surgery_shelf_exam_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/6370/4255/files/preposition_with_sentences.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9050/0001/files/dnd_5e_warlock_false_life.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c0a9de0-77d9-4dcb-bdcb-e24013fa72c4/7366949168.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4115/9333/files/firestone_poplar_pike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/5799/5672/files/rubenebirubasovupimix.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 2

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_off000054d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54D7 5412 bytes
SHA-256: 282093cff5c707b9a426244c1700e387a166898058c6f44325f005eee0ac6d55
font_01_sfnt_off0000674d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x674D 10644 bytes
SHA-256: e712ed048740008ca7e40ea7f4856375dd78d5b5ab1d2a65c8e581d0b78b5dc5

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