Malicious PDF — malware analysis report

Static analysis result for SHA-256 75ce711224027781…

MALICIOUS

PDF

59.9 KB Created: 2020-10-17 02:52:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 4497ca29945afe4fb6158dffe0af46ca SHA-1: f96db164d894405f62a9d7dbb7ed4d07bc74890a SHA-256: 75ce7112240277811e21cff45a300976bf0818260243246567afffb84637e66b
194 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://ttraff.me/123?keyword=android+mvvm+livedata+sample In PDF document text
    • https://pavowojavujide.weebly.com/uploads/1/3/1/3/131398322/kegujalagifu-bibid.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368235/normal_5f8a0ca74c8a0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367286/normal_5f8a0e28689ec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366040/normal_5f879d12255a4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368978/normal_5f8a0cdfb2bb4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369504/normal_5f88163008d70.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368228/normal_5f87fd3a84df9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367961/normal_5f87543f90db8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365656/normal_5f87042cf0296.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/a014059d-cba6-4f87-b866-fa2375f89697/nokulutawovosa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d7b6663a-2ffd-4e33-8dd2-d0537d6bbe13/fulamopijiwoliwilojaxagok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0aee9de3-0259-4806-a8a4-df16411f86d6/sunuwakizagejisox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0dac81af-3d0f-4567-b0cc-740bad90e425/73415570081.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/710c8651-7fdc-4728-b750-405528b31577/55561968995.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2070c129-f831-49a6-a122-242711151f15/vexefojanefiwuzereg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/699f002c-d22d-42d6-ae17-8da477e4d278/gopajuvoxuseruvoxowuruz.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000097ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97FF 5156 bytes
SHA-256: 30ead28e0bbe10895e1a8f8028342904a831f0031b7f620030829201d2eb8ece
font_01_sfnt_off0000a960.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA960 1800 bytes
SHA-256: e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d
font_02_sfnt_off0000b1ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1EE 15376 bytes
SHA-256: cd05a72e7aa98bd11e6a46fd2a15488eccb0f50e65ce8c660cc9e0baf4b260b8

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