Malicious PDF — malware analysis report

Static analysis result for SHA-256 57e532177c49fec8…

MALICIOUS

PDF

48.3 KB Created: 2020-10-28 19:59:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 86a2bd2f3e267a34b78d5383678f4e14 SHA-1: 010536415aa518a10bef361db44fc12a68cb7a77 SHA-256: 57e532177c49fec8621bf765ace349ec0755b86f30d506ce8da84acc02c95a49
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/aws?keyword=ilife+v5s+pro+battery+replacement In PDF document text
    • https://xesaranit.weebly.com/uploads/1/3/2/6/132696194/kuxilakisezev.pdfIn PDF document text
    • https://tetikofigutuda.weebly.com/uploads/1/3/4/4/134445118/duwudutof.pdfIn PDF document text
    • https://wifajeru.weebly.com/uploads/1/3/4/3/134342489/1477512.pdfIn PDF document text
    • https://zegokovoni.weebly.com/uploads/1/3/4/3/134323662/1604523.pdfIn PDF document text
    • https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/jepadunuxado_papasakikev_wojolil.pdfIn PDF document text
    • https://likixulojuxe.weebly.com/uploads/1/3/4/3/134386003/mabelojigug_vavopuw_wipizepuj_gifizir.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007b46.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007b46.bin)
    • https://uploads.strikinglycdn.com/files/a8b0dc74-117c-4b54-a6e3-562ca3155b5a/can_a_eunuch_get_hard.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/7297/8595/files/subway_surf_download_mac.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8d459e0-40fc-4d28-a772-2f5e3fb95431/larry_the_cable_guy_health_inspector_bathroom_scene.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/001ee0c6-4349-4771-9523-1f3799970334/21959859052.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/322fdf26-e738-418c-b35f-076ac136e9cf/mojuxerefojebonape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1724/6632/files/smart_spoken_english.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86cca1ff-852d-4b61-89ea-710613612e4e/tefaluvil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a2badf44-c8d3-4fce-ac1c-6858db07863a/90977129989.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7da24b11-6c90-4b73-9292-ae49494ea4bd/jixopetefulejeledax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/0137/5650/files/sevinejavagulafeku.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a395e0b3-5d52-4e0d-bf55-170100e2447c/trial_of_ascendancy_locations.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_off00007b46.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007b46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B46 5524 bytes
SHA-256: e4744034bb60b9ade84c7b9967affd7218f7c6dc2651548fae432f019f788e05
font_01_sfnt_off00008e14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E14 11096 bytes
SHA-256: d21f448901bfbbbaa7137260ba1039a80799c32648bb432c387d1d2fee5e5d15

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