Malicious PDF — malware analysis report

Static analysis result for SHA-256 12a203399d74c86b…

MALICIOUS

PDF

40.5 KB Created: 2020-11-08 04:29:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: ceaeba154dfd128c228fd48dd212a5e0 SHA-1: 26ac3702b6a3be25beb8a17edfcd7469381c8522 SHA-256: 12a203399d74c86bd41aef012fdedfbb68ec3d130e4944747ace3892ece3fb19
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://traffking.ru/123?keyword=suction+cup+for+glass+table+top In PDF document text
    • https://kilutiwoxit.weebly.com/uploads/1/3/1/6/131636983/fitadotanasokob.pdfIn PDF document text
    • https://jedunaxalow.weebly.com/uploads/1/3/1/6/131606453/9e8ad344.pdfIn PDF document text
    • https://pabenegoje.weebly.com/uploads/1/3/4/3/134348732/2591707.pdfIn PDF document text
    • https://rodamopuxex.weebly.com/uploads/1/3/4/3/134354351/rajozexug_somidid.pdfIn PDF document text
    • https://nijubalalo.weebly.com/uploads/1/3/1/4/131453980/187698.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://kozosimo.files.wordpress.com/2020/11/77103283788.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/601edd15-10ef-420c-af47-239c9cae6f1f/lovusadene.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/eight_days_a_week_tab.pdfIn PDF document text
    • https://s3.amazonaws.com/zubuwujoxom/adobe_speedgrade_cc_2015.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000050a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50A1 5308 bytes
SHA-256: 739a60f971b812f0c61f734a0d5ffc017b820d7e9ac97350b2d077e2f5354cb1
font_01_sfnt_off000062ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62AE 10796 bytes
SHA-256: c2a1e5652669cc70da73c67fba5027e815ae1533baf08de8f442ce5f4a3b7d65
font_02_sfnt_off00008780.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8780 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3