Malicious PDF — malware analysis report

Static analysis result for SHA-256 750626a0d09ba0b5…

MALICIOUS

PDF

54.5 KB Created: 2020-09-30 19:33:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 5a050c0e068d58342045b4cb726c4e82 SHA-1: 8c7e8c3bdb15b73d76e0fbd79851b112da2cd112 SHA-256: 750626a0d09ba0b57cf05a135809a341d82642ad7ae9947018f3fbeac7b0150d
152 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains embedded links that are flagged as malicious redirectors, pointing to 'https://cctraff.ru/strik?keyword=ambiguous+sentences+examples+pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to direct users to malicious content. The presence of numerous other links to Shopify domains, while individually benign, contributes to a link farm heuristic, indicating a potential SEO poisoning or traffic generation scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

Heuristics 3

  • 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.
  • 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/strik?keyword=ambiguous+sentences+examples+pdf In PDF document text
    • http://files.sunsetparkavenues.org/uploads/1/3/2/3/132303080/1a748a.pdfIn PDF document text
    • http://sorifed.ashlynnsboutique.com/uploads/1/3/1/4/131453943/nevuripamulaso_japujesex_finugoka_rizimazoro.pdfIn PDF document text
    • http://nijaru.cafedatalkalamode.com/uploads/1/3/0/8/130874134/9e4d2b542.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/0936/2085/files/mewojatiwogogapebaxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2619/4330/files/84237843736.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8988/7396/files/bewezatepudedokeketegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/6690/1924/files/quation_de_navier_stockes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/4791/5172/files/honda_accord_euro_r_engine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0477/2177/5260/files/video_worksheet_the_structure_of_congress.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8914/9608/files/18718590285.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/8240/2971/files/the_mission_movie_discussion_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4726/3131/files/pokemon_battle_revolution_emuparadise.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28b4c28c-0977-424a-b194-23110057bc36/98031756246.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9812e9f-2d64-4e64-a521-0c4b412e896e/21572928148.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/147c91dc-f225-4f29-9e98-6c5ab7b97616/43042581397.pdfIn 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_off0000a1ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA1AE 5576 bytes
SHA-256: 35d30eea816568b3fca125dd334325237ecce680bce8df4e1eec37c4cd23a567
font_01_sfnt_off0000b4ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB4AE 12476 bytes
SHA-256: 4992d9d61c754b9345bb43c4a9533d1627cbb5a515bdb6746cf8277926959441

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