Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ad0eddf21c68225…

MALICIOUS

PDF

43.9 KB Created: 2020-11-04 21:57:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 7a72c26b8afe5d341189ac2446218f37 SHA-1: b7edf49d5189f56d9a3a31e76252d5d77f3a961d SHA-256: 9ad0eddf21c682251c00758f948d654d11703b6b40f1495150fe8a29d70e9981
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains multiple embedded URLs, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains a reference to the malicious URL, suggesting a phishing or malware distribution attempt. The presence of numerous external PDF links also indicates a potential link farm for SEO manipulation or traffic redirection.

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://gettraff.ru/strik?keyword=bottom+down+processing+psychology+example In PDF document text
    • https://pumowurunumig.weebly.com/uploads/1/3/2/7/132740285/3649022.pdfIn PDF document text
    • https://naxupezo.weebly.com/uploads/1/3/4/3/134350891/zepenazado-vevomis.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/wonoti/prokaryotic_cell_parts_and_functions.pdfIn PDF document text
    • https://s3.amazonaws.com/lejivugeleguwod/technical_writing_instruction_manual_topics.pdfIn PDF document text
    • https://s3.amazonaws.com/kisimujuk/l_apiculture_en_bande_dessine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0507/1411/6265/files/pusobigepumizusufanawat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/738fcda1-38f7-46ce-92a1-1da67096b018/scrap_metal_5e.pdfIn PDF document text
    • https://s3.amazonaws.com/donake/85214811125.pdfIn PDF document text
    • https://s3.amazonaws.com/desenaz/pdf_to_word_converter_app_download.pdfIn PDF document text
    • https://s3.amazonaws.com/mamukawaxatali/boston_celtic_tickets_on_stubhub.pdfIn PDF document text
    • https://s3.amazonaws.com/xapidajovaji/mario_party_2_n64_download.pdfIn PDF document text
    • https://s3.amazonaws.com/jakujakula/lokepusuvo.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_off00006c21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C21 5796 bytes
SHA-256: 27de5aaca8aafcf1f48dc133a17341ba0cf64407f769e917311c919e40d3f4dc
font_01_sfnt_off00007fd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FD1 10220 bytes
SHA-256: cc5e44d6df00d62f34c93d7100efc6397154e3e30b322d7385c407902a9e6a98

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