Malicious PDF — malware analysis report

Static analysis result for SHA-256 86db7574d0df47c0…

MALICIOUS

PDF

52.1 KB Created: 2020-10-30 15:18:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: dd212236cea25e259db8dad17fab8a38 SHA-1: 5f571ababad56a9cabadd29ff20e12458b79a4da SHA-256: 86db7574d0df47c095e7c0147b662c1cdf810ccaff235c900153ecb05c10d0fb
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL `https://gettraff.ru/aws?keyword=alpha+king+titan+id` is the primary indicator of this malicious activity. The ML classifier also strongly flagged this PDF as malicious, supporting the conclusion that it is designed to lead users to harmful content.

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://gettraff.ru/aws?keyword=alpha+king+titan+id In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366357/normal_5f8aec7ade09c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418565/normal_5f9a11c182c19.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/zirojopemup/cesur_yeni_dnya_ithaki.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d74e2a9-0ec9-4144-8333-d96e435e9b95/xunubozesuxesosodagemaken.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cadd53ca-177b-430f-9fce-8a1b9a63af65/6265077184.pdfIn PDF document text
    • https://s3.amazonaws.com/remufuzu/8745294946.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a14bab3b-83b0-4246-ac76-44f8d85b88e4/kijowiwuvilijinatosujeti.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25a246aa-9bb1-49a5-bae8-bd67727418eb/71711535577.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/54a89876-20a2-4d96-853a-b6f72553f109/tafegil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a45dabe-b595-482d-89f5-5a11c9bbed6f/puzedorebakozegawakagar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43337bf1-7906-4fd7-bace-4118d005ca9a/wonimebuzerubujuj.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/marathi_nursery_rhymes_lyrics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/562e4c34-a74a-4c87-93d6-c87aed3ef3d8/sanchez_vazquez_etica.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/462ee61c-7a5c-461d-9e89-61d0b84e554d/39379920868.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_off00008d14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D14 5000 bytes
SHA-256: 9098c8b7ecd7e255b6564d08a032e062e7fe93f3cad9055fde0dee1f97f583b0
font_01_sfnt_off00009e14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E14 11084 bytes
SHA-256: 6d7d00b317b42e762d220f1cacc679a967acb6d6d65a85afc279edf86a80f381