Malicious PDF — malware analysis report

Static analysis result for SHA-256 c19a1742716d912b…

MALICIOUS

PDF

48.7 KB Created: 2020-10-17 06:30:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: a8f174bfa42957e9c80f138cacb55668 SHA-1: f72b07a5825f2141086bdf5586c35f9ec2f050f5 SHA-256: c19a1742716d912b96d8681f08a2c30e2abe1dad32d3c203c69d359ec71fc9e0
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://ttraff.me/123?keyword=compr%25C3%25A9hension+%25C3%25A9crite+b1+junior+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365998/normal_5f8716e7a050e.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/a63fb.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/xewuj.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/5401885.pdfIn PDF document text
    • https://riwisasivituw.weebly.com/uploads/1/3/1/0/131070703/146d032f56d235.pdfIn PDF document text
    • https://mefemanodi.weebly.com/uploads/1/3/1/4/131454269/jizuginotu-timuwufixawojer-fajumuxozi.pdfIn PDF document text
    • https://jarapitoxedomel.weebly.com/uploads/1/3/1/4/131437170/noruweviwenepe-gufujaluxumud.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/4667/2805/files/the_impossible_quiz_31.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0219/1269/files/cast_amazon_video_to_chromecast_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/9470/2763/files/organ_organizational_citizenship_behavior.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1420/7134/files/nigefanotozo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea156d24-9331-487b-9832-0370ffe92531/62433057579.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a08c3f5-adc6-41bc-a84b-3194a3b0fc2f/gewunugalogajukuxupaja.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35145dc6-7edd-456c-a7e0-ff884f939ead/sofosasajezanabiwafof.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1713a8d-ae9e-4210-8ba3-4fee58f13e27/64188341180.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d80d60b-855f-4a4b-b979-7fc82f7ea0c5/rumofipurejidaga.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/49aa7fd4-7923-4e11-9d0d-b10ece17788d/fetoziriwovazubaxiv.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_off00006475.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6475 5468 bytes
SHA-256: a829d9f7aa71dfb856cac810f789c5591b3e88600351a07e1afd41249a5b2c6c
font_01_sfnt_off000076a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76A2 12464 bytes
SHA-256: d54e31fdb148416e7396cbcd5b56d62f86e2e1a1eba1a3171e505acb1c7f7058
font_02_sfnt_off00009e1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E1E 16092 bytes
SHA-256: 2df61256b45890953c2308fcc748029de317a0a793b02a6ed06bd2a8a3367127

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