Malicious PDF — malware analysis report

Static analysis result for SHA-256 06131df755d23f0c…

MALICIOUS

PDF

41.6 KB Created: 2020-11-01 15:26:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 4299c2498b31d2971ce18d21f07b52e9 SHA-1: d80792e78ad699d0cb6d362a6c956ae239bf230a SHA-256: 06131df755d23f0cad474fbe89eb696d36eb71a32727d23bb2843bfd0253ef23
94 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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=omoplate+in+english In PDF document text
    • https://jobubati.weebly.com/uploads/1/3/1/4/131453688/8765229.pdfIn PDF document text
    • https://dejolezeg.weebly.com/uploads/1/3/2/8/132815968/samigivu_mevesaluzulivim_kekaja.pdfIn PDF document text
    • https://tavumake.weebly.com/uploads/1/3/2/7/132740551/bupezotebifu_tobapi.pdfIn PDF document text
    • https://disaxugotusineg.weebly.com/uploads/1/3/1/8/131871710/9122198.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/388c7b62-f3ae-4234-a53e-594c74d30112/logulomexofudisakonewijuf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ce3071c4-e3b3-4f4f-8345-dd482fc21346/965583737.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/0518/8515/files/harry_potter_mp3_download_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/5271/7982/files/hvac_maintenance_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/5393/8366/files/pubg_hack_android_0.8.0.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14533c20-0aac-439a-b542-827e7d611a0f/fifa_street_4_pc_free_download_windo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db0b8c9a-5814-4ad1-8668-96402f25c0d6/80826418712.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_off00006319.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6319 5164 bytes
SHA-256: 62e9ab365ea93576f76420077475c7be96ad5c94502c974f2b638127b887b503
font_01_sfnt_off0000747f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x747F 11088 bytes
SHA-256: 668c030488ae2e89f9c56220b0b39e2b2857f35a12ead4f43a507f3fd42f2460