Malicious PDF — malware analysis report

Static analysis result for SHA-256 aaeabea670f20773…

MALICIOUS

PDF

45.3 KB Created: 2020-10-16 02:04:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f7be6c8f6a4ac16e62b4f61411e025a7 SHA-1: 66285285d89e5611b4f2484be22074a1674d6109 SHA-256: aaeabea670f20773e45a7da2567ab78789d97b151dc8981a23c83c20d74089d0
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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/pify?keyword=whatsapp+apk+untuk+iphone+4s In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366035/normal_5f88619c2c075.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371265/normal_5f88befc3e1ae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366309/normal_5f8726366e110.pdfIn PDF document text
    • https://site-1040602.mozfiles.com/files/1040602/nuponiredujogorivinevidi.pdfIn PDF document text
    • https://site-1042193.mozfiles.com/files/1042193/67495182016.pdfIn PDF document text
    • https://site-1042920.mozfiles.com/files/1042920/30994068459.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370525/normal_5f88c7429fa2d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367000/normal_5f883a7ac55fe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370309/normal_5f887538a1d26.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371023/normal_5f884445a0c3f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371003/normal_5f88a73c1899f.pdfIn PDF document text
    • https://site-1036988.mozfiles.com/files/1036988/27304815431.pdfIn PDF document text
    • https://site-1042343.mozfiles.com/files/1042343/dalodatuwulodesorixowa.pdfIn PDF document text
    • https://site-1042198.mozfiles.com/files/1042198/kovegexa.pdfIn PDF document text
    • https://site-1039649.mozfiles.com/files/1039649/vatuje.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/2f2709bc-b8a0-4320-a52f-d7069c291594/36824218256.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7fe143f6-94f2-4342-9181-22033bb156fe/vevekejimejinowubasuvul.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0505310-bff8-4b84-94d7-1b721c1c106f/savowimuzuwufa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13c2cfc2-7d4d-46fe-8f30-a599c1a1d860/22205155129.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/463b750c-c0c0-49c5-aa25-85ad9bf0a68e/59188347297.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f93f092-4bb4-4bdb-811a-193f5e7f9245/zutojadomezuxabimewa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b2452b4-2f79-4ada-b2f4-2c4f7e2e20e0/wuwokovowemodakamerevu.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_off0000724c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x724C 4944 bytes
SHA-256: e40028602aa1461ae0a849169e3c52e6dfe4e6ef46bf8c66fe03caa2122fa03b
font_01_sfnt_off00008330.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8330 10656 bytes
SHA-256: c0d2497236d15f814270777df7f33b31c54b9199346070ce7699c1642eddb3f4

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