Malicious PDF — malware analysis report

Static analysis result for SHA-256 df2812b38248e66d…

MALICIOUS

PDF

66.2 KB Created: 2020-10-15 10:54:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: f0156c6cb33c36d35cd3833b5f51007b SHA-1: a7ca78c91fab0561651ef1e35973c50670c1decf SHA-256: df2812b38248e66dbae85bda44cc83a31d0639dd8323037df30cc02f564985ea
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/123?keyword=the+fortune+handbook+full+movie+online+free In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366381/normal_5f8736c5ec74e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368228/normal_5f876f2ccbd6d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366305/normal_5f87a244df502.pdfIn PDF document text
    • https://rimesozarabef.weebly.com/uploads/1/3/1/6/131607712/59e18c2f1d0bf5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366632/normal_5f87a4e2b22bf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365639/normal_5f870583a5410.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368245/normal_5f876f48d2ec5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367919/normal_5f87f5d6ba0d1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365567/normal_5f86f498d5b54.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/aa92d.pdfIn PDF document text
    • https://nudojafobedem.weebly.com/uploads/1/3/1/3/131379550/1386843.pdfIn PDF document text
    • https://meboguvogo.weebly.com/uploads/1/3/1/4/131437667/nenuw.pdfIn PDF document text
    • https://fimosezit.weebly.com/uploads/1/3/0/7/130775491/luraxo_pifesejix_dugelusegi_vuwimezokawel.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/1/0484/7036/0225/files/guppy_breeds_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8506/9477/files/82282264522.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7385d96-3f8a-417a-b298-90957e076448/zikazexamadagubofure.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b52a9056-6fe8-42c7-a834-b7aa3c25a10c/34967966210.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_off0000b2c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB2C8 5064 bytes
SHA-256: fe21b09886b9863cd7a2e1a8aa13127784c30b1e8ab27633dcb157a0977eeb4f
font_01_sfnt_off0000c3d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3D0 12868 bytes
SHA-256: 14ec81f3ee8b755b3706f518173d4602c5afdf37138e8a1e4c01c113d64c8280
font_02_sfnt_off0000ed58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED58 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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