Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ca0392eb96ad774…

MALICIOUS

PDF

44.2 KB Created: 2020-10-12 00:12:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 049911b1217e35215ab4f4d184e9edf5 SHA-1: 7302be440d7e67babb8a5f90b0a167365bc313b6 SHA-256: 7ca0392eb96ad7741d3eaa307701affaef8c368d1c385339cf5e344126bec807
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://gettraff.ru/pify?keyword=chipotle+franchise+cost+in+india In PDF document text
    • http://files.veingoods.com/uploads/1/3/0/7/130775952/jajipe.pdfIn PDF document text
    • http://jojaxa.mail.rustictreasuresjewellery.com/uploads/1/3/1/1/131164250/pilide.pdfIn PDF document text
    • http://files.thecrueltyfreechurch.com/uploads/1/3/1/3/131384432/83964c.pdfIn PDF document text
    • http://muluja.littleladyo.com/uploads/1/3/0/7/130738714/7725033.pdfIn PDF document text
    • http://files.balloonsbyangie.com/uploads/1/3/1/3/131380480/73ab8c4e0eca.pdfIn PDF document text
    • http://lalit.garybachers.com/uploads/1/3/0/7/130738765/fagirapin_xepoka_forubumazem_lipidisi.pdfIn PDF document text
    • http://files.luftgear.com/uploads/1/3/0/7/130739690/6bed9a.pdfIn PDF document text
    • http://lokubo.susanmerrillsquier.com/uploads/1/3/1/1/131163664/bazosuj_tesabapune_jorepusojikagom_sukilebebal.pdfIn PDF document text
    • http://ludiniw.theyouthchallenge.com/uploads/1/3/1/3/131383483/lerar_sesusagel_negexefarejik_bimukakefukiko.pdfIn PDF document text
    • https://site-1040329.mozfiles.com/files/1040329/41755785559.pdfIn PDF document text
    • https://site-1038725.mozfiles.com/files/1038725/gewotebufutagixorusivozix.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://cdn.shopify.com/s/files/1/0486/4324/4200/files/classical_conditioning_practice_psychology_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6826/7423/files/williams_iowa_hotels.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0491/6989/1494/files/zoperovojedoluwaza.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_off0000603a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x603A 5052 bytes
SHA-256: e081afc0dbc14485ea6553043dd1251e533f83f5cece850998ed1e12ac6f9511
font_01_sfnt_off00007159.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7159 10616 bytes
SHA-256: ab20c997333afe9a0241d52aeb2884243c2ff87c83cee3b52c040e099500eaad
font_02_sfnt_off000095ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95AC 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333