Malicious PDF — malware analysis report

Static analysis result for SHA-256 9eaf057b21f83e77…

MALICIOUS

PDF

52.9 KB Created: 2020-10-15 12:26:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 09d5ce8168559a48b44ac9959713df4d SHA-1: 77de6c3639f3dfbcdb9ed08fa1f930b9a65d7b96 SHA-256: 9eaf057b21f83e7783895131a93872749edaae24c8da7a9dfd673f44b8c9ea38
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains embedded links, one of which points to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text that appears to be a lure for a "2020 scion frs owners manual pdf". The presence of numerous external PDF links, many pointing to benign Shopify URLs, suggests a link farm designed to improve search engine ranking for malicious content. The ML classifier also strongly indicated maliciousness.

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://gettraff.ru/123?keyword=2020+scion+frs+owners+manual+pdf In PDF document text
    • https://kivuligob.weebly.com/uploads/1/3/0/8/130874143/1431129.pdfIn PDF document text
    • https://wefejakero.weebly.com/uploads/1/3/0/8/130814310/sinoxas-nurus-juzizaga.pdfIn PDF document text
    • https://tejigenunonim.weebly.com/uploads/1/3/0/8/130813632/eecc1.pdfIn PDF document text
    • https://buluzuzumaz.weebly.com/uploads/1/3/1/6/131636727/7878292.pdfIn PDF document text
    • https://rakamukomegu.weebly.com/uploads/1/3/2/6/132681656/rinozeleb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365599/normal_5f870aa383d2c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366033/normal_5f87089797a03.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368503/normal_5f87d9dfc431a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366042/normal_5f87d73c688f1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366625/normal_5f8721b4cfa13.pdfIn PDF document text
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/pabagugiridepoluwaru.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/jasamejug-jenutuzudemeluf.pdfIn PDF document text
    • https://fulipevaxavu.weebly.com/uploads/1/3/2/6/132695351/b9e9e23.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365998/normal_5f874711a6088.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365563/normal_5f8815728ddbe.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/1/0431/1911/6449/files/kotters_theory_of_change.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0005/3408/files/kajelorugegos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/8129/2706/files/microorganisms_in_air.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/8412/7650/files/44050496765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2661/9287/files/strait_line_sonic_laser_tape_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/7760/1946/files/748147306.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4012/6629/files/12236935890.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5570/9351/files/lane_stallion_recliner_parts_diagram.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B53 5572 bytes
SHA-256: 5846ed4aced8c62a54715de376062644ee790417dc860654f44dc50c9d7145b3
font_01_sfnt_off00007e35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E35 15516 bytes
SHA-256: dd81c484ede3b2e9a5d5ddba7a484fb2d8ca2b02f9dd3534a585bd6b51c5b87f
font_02_sfnt_off0000aeaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAEAA 16204 bytes
SHA-256: 3a199096de134af5ad255acad2767b500ce12cbbed63974af532609cbae6a213

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