Malicious PDF — malware analysis report

Static analysis result for SHA-256 cce0329046dded42…

MALICIOUS

PDF

37.6 KB Created: 2020-11-06 17:14:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 4ffeafda99355b40ce4c0286047bd182 SHA-1: bb01185d4aaa18680864ad068252e63416a5e1c1 SHA-256: cce0329046dded4298668348cd0a3b9c51d611a713928c09b986c99f1a629a0c
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafffi.ru/aws?keyword=realidades+1+capitulo+4b+actividad+11+answers PDF link annotation
    • https://woralolur.weebly.com/uploads/1/3/4/3/134359953/mimodimagemu.pdfIn PDF document text
    • https://vodipewelo.weebly.com/uploads/1/3/1/6/131637384/8360161.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/8dd9d972-c339-41e1-b011-deb89d2655aa/waguxonijogovove.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65b97e48-39d8-457c-ad34-f23302144a02/vce_designer_crack_2.4.2.pdfIn PDF document text
    • https://s3.amazonaws.com/bivanud/hot_wheels_redline_price_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/456f5242-0164-4aa3-932d-2d81da1c8792/87348337797.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/362a2c0a-5fea-42f8-bb66-a36a518e6ead/romovenaf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d846a5d4-888b-4672-899d-ded1b6701d1c/24843702019.pdfIn PDF document text
    • https://waxuvemuxibi.files.wordpress.com/2020/11/25118203704.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6dfaff21-a75a-4b1a-bbc3-2c89004054c8/55040741520.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a545a21e-0a4d-4e42-992c-b63175c4c91a/banabiwizali.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0ca43a6-be66-484f-aa19-1ba9a111ae69/bojimidosukosaf.pdfIn PDF document text
    • https://bugozipopubu.files.wordpress.com/2020/11/76722670462.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f78aa98f-ef70-4983-9414-b570243c97f9/airpod_pro_user_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc0f47a8-51ac-414e-80c1-3fea21ea31cb/90818690365.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cddffb86-5b33-4b60-a1fb-b31a23e519b2/hlio_creder_instalaes_hidrulicas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8231aab-442d-4aa7-a60b-2bcbd07a0dc3/liwejewomiwakozutubar.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 8

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_off00004f91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F91 5508 bytes
SHA-256: 2533f4cadd43fa507cce2d6a0b753980b76b6976e21393508417a0f74f9cb051
font_01_sfnt_off00006277.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6277 11240 bytes
SHA-256: 8d670b3c9d7a17abab510c93a31ca369658c463d7c069e1690b389c5b0e9b104

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