Malicious PDF — malware analysis report

Static analysis result for SHA-256 3762bfe375d96c6e…

MALICIOUS

PDF

41.3 KB Created: 2020-11-05 15:48:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15
MD5: f43da3f418fbeb644bfc49e1292fdf3a SHA-1: 55c0809bb4c94df32f2a19c9b2b943b1deac16c2 SHA-256: 3762bfe375d96c6ef8c864fd77df4de6843a0e748b53b513f1555fcd85f6b05c
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffset.ru/aws?keyword=aces+2020+llc PDF link annotation
    • https://wovasemuzusalej.weebly.com/uploads/1/3/1/6/131636629/xupotepebisi.pdfIn PDF document text
    • https://dapujevubo.weebly.com/uploads/1/3/1/4/131438680/c6b0443ec3ae3.pdfIn PDF document text
    • https://bavejojonosepes.weebly.com/uploads/1/3/1/3/131380601/9865678e0364.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://uploads.strikinglycdn.com/files/774a2fac-c3f8-4724-bc64-776792f4a97d/louis_lamour_books_sackett_series.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ae037e6-77ba-4bb4-9bda-0ade4d821489/barobidofivuvuli.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c4638a0-7b06-485c-adeb-b00360833dff/24890804290.pdfIn PDF document text
    • https://s3.amazonaws.com/wixanarer/joshua_a_parable_for_today_audiobook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18282a54-db2b-4ce0-a099-654e550ae72f/ginajavulaxovunaba.pdfIn PDF document text
    • https://s3.amazonaws.com/zarusegibitumet/vutaj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af2a55c6-2324-45c5-b183-0bf8014c7f83/bankersadda_monthly_current_affairs_in_hindi.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_off00005a72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A72 4192 bytes
SHA-256: c2705b5dd737d9c71b5633e5b4a206d046e27d45d34512bf39f962ca6fc738a0
font_01_sfnt_off0000689c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x689C 10132 bytes
SHA-256: 8b513ae668772cd89c5550280a3a8b8bddbc4436c2b346360d006b56057ce1cf
font_02_sfnt_off00008b1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B1E 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378