Malicious PDF — malware analysis report

Static analysis result for SHA-256 806fa20cc37bf302…

MALICIOUS

PDF

53.3 KB Created: 2020-10-22 04:26:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 048d3674542ba45f5b440963ba2c129e SHA-1: b6e6286f1038b6404e8d3d48e1ef89c2387c2dce SHA-256: 806fa20cc37bf302b26480c2ba80d178d9e69735036a38700d70f208197dc11c
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://ggtraff.ru/pify?keyword=altavoz+jbl+clip+2+manual+espa%25C3%25B1ol In PDF document text
    • https://tubenuluni.weebly.com/uploads/1/3/1/4/131437864/rojebulujumetubofusu.pdfIn PDF document text
    • https://lixaworone.weebly.com/uploads/1/3/1/8/131871871/9177936.pdfIn PDF document text
    • https://vewutaniwem.weebly.com/uploads/1/3/0/8/130873717/81f80e371040dae.pdfIn PDF document text
    • https://wopuremob.weebly.com/uploads/1/3/2/6/132696580/wipebopa.pdfIn PDF document text
    • https://tisatazufewuvo.weebly.com/uploads/1/3/1/1/131163687/paxowoti.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/susopuzupure/marasmus_kwashiorkor_adalah.pdfIn PDF document text
    • https://s3.amazonaws.com/wujapu/types_of_adverbs_in_english.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/finopip.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/mitadozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8217/8979/files/62410126216.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0826/1276/files/group_discussion_latest_topics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/0793/2091/files/51328840336.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9813/5966/files/ac_market_download_apk_uptodown.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/8392/6171/files/letanas_de_los_santos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/1879/9264/files/leviathan_chapter_13_summary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d610f61f-5ebe-4988-a0f8-bde6c0192ce1/rubikikatekamexum.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0069b56b-65e4-4fa7-a39f-b0e7eb1c1b6c/82421159168.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15e49d2b-e7d0-45ca-bb31-4dbc2b307847/gameli.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B67 5644 bytes
SHA-256: 2598eefdc689527673b243d6a21097931e0f5b85b701883993e885a6e8d3bbb6
font_01_sfnt_off00007e50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E50 16384 bytes
SHA-256: 36dca894ff28a0ab8e05f5aa2a04cf33af68969bb068f7e4a126d2127873a3a0
font_02_sfnt_off0000afae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFAE 16348 bytes
SHA-256: c7cfc138ee9fd9369b8b16460bde0d5057fa814c881a6723e1206d4699793506

Open this report in the interactive analyzer, or submit your own file for analysis.