Malicious PDF — malware analysis report

Static analysis result for SHA-256 225833dfa0660e1e…

MALICIOUS

PDF

42.3 KB Created: 2020-10-03 15:39:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: c6db1c5d96c43eb17d5066d3387909db SHA-1: ebf353168f6658a21c72fbf477cc7c540599a3f2 SHA-256: 225833dfa0660e1e7831ecbb9fce3d7af250bcabfeafe24d38e8542a2a457d0d
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://gettraff.ru/pify?keyword=cheat+engine+android+process+list+empty In PDF document text
    • http://mafep.wteainfo.org/uploads/1/3/1/6/131606263/zodumewid_gakuraxet_vawixa_juwib.pdfIn PDF document text
    • http://betiku.sonorandesertvoices.org/uploads/1/3/1/4/131407143/b0c55f21dc4.pdfIn PDF document text
    • http://porene.rationalhedonism.org/uploads/1/3/1/3/131383748/765f6b9f.pdfIn PDF document text
    • http://tumifone.poodlepets.com/uploads/1/3/0/7/130775565/namojiluzefiv.pdfIn PDF document text
    • https://site-1040209.mozfiles.com/files/1040209/vujigirusojavuxukisugexe.pdfIn PDF document text
    • https://site-1036939.mozfiles.com/files/1036939/julonukawesewu.pdfIn PDF document text
    • https://site-1037214.mozfiles.com/files/1037214/niriputitutubozalebomiv.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/3fa74d3d-d202-44a3-81fc-2c8718c5d5e3/fanimiropatik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da288e40-1f58-4d58-b728-af3426878e99/vupevivajusazofaf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed667298-2e54-4912-8e16-30ae5c4e5eb9/65573995923.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5dd9b8c-3d3b-49a5-ad31-3167787cdb28/16405048967.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40f9eeec-80c3-486b-bfb7-e2e06f6d06a5/71141064015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4095/4773/files/how_do_bees_make_wax_youtube.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/6990/9408/files/slither.io_zoom_mod_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/3326/4806/files/pogetopafat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/3362/0380/files/flyy_girl_omar_tyree.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_off0000672e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x672E 5496 bytes
SHA-256: 1263a3b7f9980a3b21f0853533f8c1a09baa97e2270fa1fa3a1622b3e61c0ce5
font_01_sfnt_off000079b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79B6 10216 bytes
SHA-256: 2eef97b0b9249f8580274cd357210054a50c46fa353ee0dd8835fd16bc411cb6