Malicious PDF — malware analysis report

Static analysis result for SHA-256 29666707403f24ff…

MALICIOUS

PDF

49.1 KB Created: 2020-10-27 00:19:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 8a87f0f48687257995eddc959b2a48fa SHA-1: d8188dedc4214e0e20206983b0e83794b5251d89 SHA-256: 29666707403f24ff9f4a13cd74fc8d18310e429b91ba31450128185221907691
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://cctraff.ru/123?keyword=bouncing+balls+unblocked In PDF document text
    • https://lefedatit.weebly.com/uploads/1/3/0/7/130776734/1bf7a66e4791.pdfIn PDF document text
    • https://xalipifizipig.weebly.com/uploads/1/3/1/3/131379045/venuk.pdfIn PDF document text
    • https://lozulijulejibog.weebly.com/uploads/1/3/1/8/131857057/womijol.pdfIn PDF document text
    • https://lesajevix.weebly.com/uploads/1/3/4/3/134318042/vekunorawi.pdfIn PDF document text
    • https://melegejisud.weebly.com/uploads/1/3/1/3/131379421/25693309391f5.pdfIn PDF document text
    • https://xawuwotogot.weebly.com/uploads/1/3/2/6/132695388/d473191.pdfIn PDF document text
    • https://zevigetadafuwun.weebly.com/uploads/1/3/0/9/130969942/4595a3c31d507.pdfIn PDF document text
    • https://nikoxutaju.weebly.com/uploads/1/3/1/3/131378952/410cf.pdfIn PDF document text
    • https://sabijodamibig.weebly.com/uploads/1/3/0/7/130775907/6339450.pdfIn PDF document text
    • https://sopodepewujo.weebly.com/uploads/1/3/4/3/134340903/pojamejoj_pagimom_norubugivuda_xixuxoxo.pdfIn PDF document text
    • https://tenagudewujuga.weebly.com/uploads/1/3/1/1/131164273/aba6767fe610.pdfIn PDF document text
    • https://rabexowubomisuw.weebly.com/uploads/1/3/1/4/131407155/gepilenoridudimefex.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000074f8.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000074f8.bin)
    • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000a93b.bin)
    • https://uploads.strikinglycdn.com/files/d1604264-96ba-466d-9a12-c14c439a6789/56670588595.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4aafbfb4-873b-45cd-92b3-78555b033fd7/tadimafafixobeko.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/589479a5-b96f-4c32-a54a-f9198af3215d/21566509882.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/8686/4278/files/jane_hawk_series.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c47d6f6-9a14-43cb-8061-bac6a407c4e9/72185019831.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef4e507f-0bde-4f67-8821-da31861e0d64/zukugezaximuzu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af15250b-9294-4f58-8ce3-f9330eae6d0d/32048336618.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 extracted file (font_00_sfnt_off000074f8.bin)

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_off000074f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74F8 5068 bytes
SHA-256: 0d3319b4a8033a12acc750e37613ba1a9685b0ceca56c30be6aa705e032d0676
font_01_sfnt_off0000863b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x863B 10280 bytes
SHA-256: dbb059e117df68872ff5255e31776c68543bce49fdc838396d9dac17aa19a87e
font_02_sfnt_off0000a93b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA93B 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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