Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d7090786944d135…

MALICIOUS

PDF

42.9 KB Created: 2020-10-16 12:16:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f44ff9f6e03b7cca7a80277e2c830be6 SHA-1: e812c1eac76e3e5efc868b0d816bbab9d8a24ddc SHA-256: 6d7090786944d1359165c6532a3ffc17c6afdbaa49edd5eb806abfacc91cc61e
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://ggtraff.ru/123?keyword=psiphon+88+apk+free+download In PDF document text
    • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/beparinunij.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/vanojiraxajerubefiza.pdfIn PDF document text
    • https://jeponiruwapin.weebly.com/uploads/1/3/0/7/130776483/5849510.pdfIn PDF document text
    • https://juragubiv.weebly.com/uploads/1/3/0/8/130874328/5072572.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/1302795.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367294/normal_5f8841ec2fb6d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372980/normal_5f8924c0bf8cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367923/normal_5f89597b7eb27.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368781/normal_5f87f50e91a28.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/5c9e36c5-414e-4432-9fd4-c30dbe9597cc/zopexenolejafu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db785f9f-b802-4be8-97c0-8e0393bf0718/49657613556.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e10c52ca-654d-4714-abc9-bcf12e417f33/zipozizafezekoboto.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a959915-4bc0-4591-8bfb-a914519eaec8/9569498460.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4f51039-80ee-4b9a-9228-a6da0d53e94b/wopugimekenito.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/4523/8976/files/duxepawij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8504/6974/files/critical_path_analysis_and_pert.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac587df0-c9eb-4ef7-88c9-80ee1691d1c1/juzukeremojilot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0956fa8a-fcb5-45cc-a8f4-3924f7560987/nilawegabanobe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/daa6683e-67da-4d0c-8455-06ac37b337d5/45037035061.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_off000068e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68E9 5480 bytes
SHA-256: e9a3de7b48430479185ab96e36287c63144a51d60eb348af08c1bbc615f5db2d
font_01_sfnt_off00007b8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B8A 10144 bytes
SHA-256: 0d8a7c67e128dec965ee78ee62650687dfdb79e6e222ae1354066c23f04e274f

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