Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcd5c17a3648ff79…

MALICIOUS

PDF

45.7 KB Created: 2020-10-03 21:42:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 94339336d67f2a36336792e8e21df506 SHA-1: 993bee36179d5c5300cc3bf5206a5be85628f366 SHA-256: dcd5c17a3648ff7902c0644a0ff42e7f75e7abece41dc107a43f0998e0ca23db
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/strik?keyword=shameless+season+5+torrent In PDF document text
    • http://nodogason.thewildbrew.com/uploads/1/3/1/4/131408738/a9b7f33f.pdfIn PDF document text
    • http://jirifego.fabianwendt.com/uploads/1/3/0/8/130814328/92e4a.pdfIn PDF document text
    • http://files.sallydearhealeyphd.com/uploads/1/3/0/8/130814043/gepilorivuv_retawejitapizop.pdfIn PDF document text
    • http://lupeb.nomsieswoodcrafts.com/uploads/1/3/0/7/130776485/84c3186b56.pdfIn PDF document text
    • http://files.copeadvantage.com/uploads/1/3/2/8/132814030/371e47df.pdfIn PDF document text
    • https://site-1036753.mozfiles.com/files/1036753/8129106926.pdfIn PDF document text
    • https://site-1037275.mozfiles.com/files/1037275/tomima.pdfIn PDF document text
    • https://site-1039307.mozfiles.com/files/1039307/49246558017.pdfIn PDF document text
    • https://site-1042010.mozfiles.com/files/1042010/vizolajozalowixijewap.pdfIn PDF document text
    • https://site-1036980.mozfiles.com/files/1036980/45224370540.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/ef23c88c-f974-4148-bed7-8472839c1458/50215055196.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3896806-d4d6-498f-aece-61c201250a59/57271097950.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd89fbbb-558d-419d-87d8-7f26bcab8e6c/24764238281.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95559720-d439-4e63-a3c3-3fd544a50ba2/sagefolelelaje.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc92cd34-91db-4fe0-bee7-8637a6482400/fifulapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4827/9970/files/math_museum_near_me.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5480/7717/files/sizevitrexx_side_effects.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6049/3474/files/56848542650.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9525/2374/files/sazoja.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67FC 4892 bytes
SHA-256: 3954ee2c94a9e7bba8067dd8af80adf3cf8322071f3f6e4c610c8d1a7b160a8c
font_01_sfnt_off00007865.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7865 10472 bytes
SHA-256: 91f20566bf8f00aa3a2452b3c60abd383a07c45e0c8d9bba3e40efddaaa3d012
font_02_sfnt_off00009bf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BF0 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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