Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bd9bf95a8c59406…

MALICIOUS

PDF

42.5 KB Created: 2020-11-01 01:23:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 4bfd3afaeb7f93d91ec7e5d392b4dff3 SHA-1: a824f344177368be3e1c7baed99d18e269b3d2dd SHA-256: 5bd9bf95a8c594061bd887777ce8d15f608ff837c6e1a825fd12c42c39abf871
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains numerous embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, appears to contain the URL https://ggtraff.ru/aws?keyword=miniature+poodles+for+sale+in+portland+oregon, which is flagged as malicious. The presence of a link farm heuristic further suggests an attempt to direct users to external, potentially harmful, content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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/aws?keyword=miniature+poodles+for+sale+in+portland+oregon In PDF document text
    • https://cdn-cms.f-static.net/uploads/4367297/normal_5f89aea8b2018.pdfIn PDF document text
    • https://wovuxekas.weebly.com/uploads/1/3/4/3/134379471/bb889eba81497f7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368742/normal_5f8daf0b4446c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/business_report_writing_samples.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cefc9c0f-c363-4fdf-a8fe-f4693f3a32ac/97542761933.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12bc8210-0e54-4f9e-ab3a-677e57122016/73362362703.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12eb8135-b75b-4e52-a0d6-5e39b2427b5a/56933714943.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b73ac538-8fff-4274-869a-c780d92bb43b/7259432274.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6633ad87-e971-4831-9d5b-9e40b7792560/xuzejujum.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2c82c2c-d689-4f4a-bfb8-eeea82f21785/zojigukokekovax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ecf1090-b530-4882-98de-093e061f66f4/dekipifekonizuge.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d9263f7-90dc-40d5-83cf-29ae072fe996/81969878453.pdfIn PDF document text
    • https://s3.amazonaws.com/bulozor/rukolokerubokuliwiwigixib.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_off000064f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64F8 5216 bytes
SHA-256: 336f9ef9823ebd63eb9f23c9b86f70d8b375f191a39dbdf501c117366d70cfc5
font_01_sfnt_off000076d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76D6 11100 bytes
SHA-256: 50599ce8357ad5dc8ca0e9776d1f4e03995cf1addc20b4d09f3a068b5f870d13

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