Malicious PDF — malware analysis report

Static analysis result for SHA-256 eab0a8e13ae8dd45…

MALICIOUS

PDF

38.0 KB Created: 2020-10-30 14:49:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 52d99e76e548b72a56e9b82ddc2c8f52 SHA-1: eb9ad8cffcb0d9d5ac3320c05957499ef6817243 SHA-256: eab0a8e13ae8dd45f9e28cbcd255e38572530b101a846c3f4a77265b74c98d1f
134 Risk Score

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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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=egw+scope+base+howa+1500 In PDF document text
    • https://wesujugureju.weebly.com/uploads/1/3/0/8/130874517/5243211.pdfIn PDF document text
    • https://poxuxeket.weebly.com/uploads/1/3/3/9/133997588/wixifu_jusoxalawa_kivulamun_xazopitexikawu.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/1/0483/1530/2043/files/pro_challenger_dart_board_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/zebopizija.pdfIn PDF document text
    • https://s3.amazonaws.com/pizexopenaxu/tifixibawaxikusuze.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4b22041-52f0-48a7-a658-0a93194e6761/13738235254.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11c49f77-768c-4e3c-a589-dfaec0e99373/16253842374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/1165/1753/files/epsxe_android_2_player_bluetooth.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/8312/9513/files/15256878824.pdfIn PDF document text
    • https://s3.amazonaws.com/lakadutof/autonomic_nervous_system_activity_in_emotion_a_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/776f3258-229c-4d04-8640-8a936f28b6c7/tiruxuwipewurutulexema.pdfIn PDF document text
    • https://s3.amazonaws.com/tesapibebujep/warhammer_v2_career_compendium.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/1561/6681/files/jedeluxemomiropopis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a9ca35e-ce5a-4879-83f5-f66e161bfc20/82707583094.pdfIn PDF document text
    • https://s3.amazonaws.com/purawuma/5992589447.pdfIn PDF document text
    • https://s3.amazonaws.com/zidosozawok/18356742740.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_off00005486.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5486 5572 bytes
SHA-256: 80416c4d6f4a47d8a356a4a11c18c33a36f09da6c00a2fe71739dfb0936875ee
font_01_sfnt_off000067a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67A2 10584 bytes
SHA-256: a4a94b3d7354115181ec1658e1226b7cc26e52532abb6ee1caee4a26460dbda3