Malicious PDF — malware analysis report

Static analysis result for SHA-256 71147d928c15c6e2…

MALICIOUS

PDF

44.1 KB Created: 2020-11-02 19:59:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: a854357e4c19fdcad854cc2e60fe80f1 SHA-1: d338aa40c17046a7584800c287028241f75f4cf8 SHA-256: 71147d928c15c6e224788d223fc28248b99eb2da3a1c977991b9f5f2a7150ed5
94 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 routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

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://ggtraff.ru/aws?keyword=harry+potter+libro+pdf+ita In PDF document text
    • https://tubenuluni.weebly.com/uploads/1/3/1/4/131437864/8151629.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379231/normal_5f8bf42dc5041.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377095/normal_5f8dab12cb765.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387036/normal_5f90621ab93bd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380682/normal_5f8b0d5b9d324.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370278/normal_5f8ccc7c70c59.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dazinibonofobi/furaj.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/batman_vs_superman_comics_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/peveziwoguxuzam/60348366671.pdfIn PDF document text
    • https://s3.amazonaws.com/luxelula/chemical_bonding_notes_for_bsc.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 5

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_off00006d7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D7D 5060 bytes
SHA-256: 3b0cc644a725cce62e3a687200db94b90f4b7d2538d664e9110cccc21cbf2372
font_01_sfnt_off00007ec0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EC0 11212 bytes
SHA-256: b452302b673d57937b0bf60208dc43558fefa5b99818f9dfaf29e75ba145f909

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