Malicious PDF — malware analysis report

Static analysis result for SHA-256 73ccf12a536e4f45…

MALICIOUS

PDF

42.7 KB Created: 2020-10-08 05:08:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: d79d1423890dc0bf16eca275946b056a SHA-1: e2ba5f47b8449cf4d60e242579731af8babab978 SHA-256: 73ccf12a536e4f45cd910491226e80b5af2ea037fdaba7be073f398acd82f5f1
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/strik?keyword=picket+43+movie+download+tamilrockers In PDF document text
    • http://jalidu.karengiuntalmft.com/uploads/1/3/1/6/131637291/4512549.pdfIn PDF document text
    • http://dodel.delcacao.ch/uploads/1/3/0/7/130739431/finodexesakivimibo.pdfIn PDF document text
    • http://files.uctogo.com/uploads/1/3/0/7/130776409/zukonexul_lavunuf.pdfIn PDF document text
    • http://files.timepathway.com/uploads/1/3/0/7/130775969/7244039.pdfIn PDF document text
    • http://files.busheypottery.co.uk/uploads/1/3/1/3/131384470/bujomevizuf-nagajolizebeb-lagiratanomopum.pdfIn PDF document text
    • http://fejumiwej.krimmelband.com/uploads/1/3/0/8/130813528/3017163.pdfIn PDF document text
    • http://files.yavapaicowbelles.org/uploads/1/3/0/8/130874254/xidozoxarolenu.pdfIn PDF document text
    • http://files.rbaappalachianministry.com/uploads/1/3/2/6/132681378/senanoworarir-pokunop-gaxifikapuz-fanoxada.pdfIn PDF document text
    • http://files.tracyhansencoaching.com/uploads/1/3/0/9/130969115/d78bdfd3e53.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/1/0497/4244/6741/files/hewlett_packard_6500_printer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/7909/7248/files/57040125408.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/324d351a-8a1b-4a46-b0fb-4a2975b0b372/18081533633.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64a76d82-2156-4e01-ab3c-e6ea093d415a/47074382901.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0117d220-2044-4364-83a1-74314bb24b9a/kurogodazitofujebis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff201c36-79b2-46c5-b63c-df8a8777c367/7911196715.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df4fa154-bd8c-4127-a9f1-e5d36d159a93/66435047546.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 7

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_off00006575.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6575 5556 bytes
SHA-256: 46a5dcbe6e08c5aa9693bddb6548b2afea1e8e85a17c901927985f4e823886bd
font_01_sfnt_off00007860.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7860 11744 bytes
SHA-256: 204e0ded8c05df50c6103ffc81ca91b3414b9a8cb3a087375d8fa0e6f74149ab

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