Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ae16007c4eb77a8…

MALICIOUS

PDF

46.4 KB Created: 2020-10-16 03:39:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: b7d4df6ea2396be70bde580f44f7bc4c SHA-1: 348887237092bc0a9b399d48589e37b22885013d SHA-256: 7ae16007c4eb77a8156f8ae63bb677311c8ede6897c017dba7e4b5e9115f9235
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://gettraff.ru/123?keyword=the+mysterious+benedict+society+1+pdf In PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/fubisi.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/vanojiraxajerubefiza.pdfIn PDF document text
    • https://pepotoxuxomupav.weebly.com/uploads/1/3/1/4/131483830/56ad63a.pdfIn PDF document text
    • https://xojisige.weebly.com/uploads/1/3/1/6/131637148/5910241.pdfIn PDF document text
    • https://rimesozarabef.weebly.com/uploads/1/3/1/6/131607712/zupaxevekod-puzig-reluziwajit-rubutipos.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/e0f292.pdfIn PDF document text
    • https://gusumadanu.weebly.com/uploads/1/3/2/6/132695601/womanawiwurek_dipewububexuti_tudanado.pdfIn PDF document text
    • https://mufalugibesenu.weebly.com/uploads/1/3/1/4/131453255/da254ab8415.pdfIn PDF document text
    • https://site-1038367.mozfiles.com/files/1038367/kaxawawiwunajuximezo.pdfIn PDF document text
    • https://site-1038504.mozfiles.com/files/1038504/mojosikotemasigotel.pdfIn PDF document text
    • https://site-1037246.mozfiles.com/files/1037246/67487444311.pdfIn PDF document text
    • https://site-1044294.mozfiles.com/files/1044294/voxoxu.pdfIn PDF document text
    • https://site-1039688.mozfiles.com/files/1039688/linexuluwamoxo.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/663b5dfe-42da-4746-b5d3-29d956ae649c/kemuse.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/741f00e1-247a-4487-a473-c6fdb502c54f/40584061521.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/44371586-0d84-498c-bf34-042d73e37fed/93256383233.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5f53ed6-c16f-42f3-a9de-1581a3c7c36a/27922778132.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80404e49-7898-4734-8d97-2f875079bbe9/gojotinokerakuwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4518/0824/files/37740961399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7527/2855/files/64324476455.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000076f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76F0 5396 bytes
SHA-256: 58c43639a9c6a6eda58a00e3b454da166e8f8ac79600f5338a23e418d09557e3
font_01_sfnt_off0000892f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x892F 10280 bytes
SHA-256: d801cc6dacb4c6f160d8ddb5ed3447d77a128c9b2f2bde19a0102ef088b22721

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