Malicious PDF — malware analysis report

Static analysis result for SHA-256 c02d499efbb658ba…

MALICIOUS

PDF

42.6 KB Created: 2020-10-06 11:12:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: bce5ee69120d40f31b4399cbcab9e4be SHA-1: 3686147b42349668158fd9202b5258506d210666 SHA-256: c02d499efbb658ba318068673d9235db2d588fd33335af12a43494aedbfc5a37
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.club/pify?keyword=economy+of+mesopotamia In PDF document text
    • http://xowuwu.jingyouecon.com/uploads/1/3/0/7/130740206/tujokuratedexu.pdfIn PDF document text
    • http://files.omoristore.com/uploads/1/3/0/7/130738882/1a5352c151f.pdfIn PDF document text
    • http://riwajukap.baysidetackle.net/uploads/1/3/1/1/131164174/jajakajafazuxizil.pdfIn PDF document text
    • https://site-1042624.mozfiles.com/files/1042624/90520002058.pdfIn PDF document text
    • https://site-1039807.mozfiles.com/files/1039807/52684603213.pdfIn PDF document text
    • https://site-1036750.mozfiles.com/files/1036750/76390323775.pdfIn PDF document text
    • https://site-1037175.mozfiles.com/files/1037175/xufodugufe.pdfIn PDF document text
    • https://site-1039889.mozfiles.com/files/1039889/nigabemetil.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/c5341793-e30c-4d9f-899d-e890887c26c0/bevaxevivumesajeje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/3885/5327/files/78409079662.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9449/9743/files/13233803073.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5194/7931/files/23426237564.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/6729/5894/files/mirafilerikibimof.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_off00006ae9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE9 5092 bytes
SHA-256: d8f6296115b9e2f21eb077efab6fc994249d2c892bf20b95f35be767584052f8
font_01_sfnt_off00007c42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C42 9716 bytes
SHA-256: 96bb9311a65b379e04d75576900736a5f527557f3a59c1688dd6dabebe686c75