Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb7079064c9732c6…

MALICIOUS

PDF

54.5 KB Created: 2020-10-14 22:57:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: b38829ed3740d4d72ab32d4d0a0a45d0 SHA-1: e328fd28204a3f19aaa82b1363b735f9b644d707 SHA-256: eb7079064c9732c60f55ca15e82db0c1a381d29f8cae5bc67e6874c5873757e6
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ttraff.link/pify?keyword=mortalit%25C3%25A9+maternelle+dans+le+monde+pdf In PDF document text
    • https://site-1041068.mozfiles.com/files/1041068/jubokisewomuvirawubu.pdfIn PDF document text
    • https://site-1039896.mozfiles.com/files/1039896/4306191276.pdfIn PDF document text
    • https://site-1038618.mozfiles.com/files/1038618/82526893861.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/fesixukorupu.pdfIn PDF document text
    • https://rakamukomegu.weebly.com/uploads/1/3/2/6/132681656/ruzevemibuwo-rugezigamivo-jikujiviruxe-suxubamitu.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/debizikirapanas.pdfIn PDF document text
    • https://wepugimi.weebly.com/uploads/1/3/1/0/131070973/xenojefomil.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/199877.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/1/0437/6743/1329/files/keragojinarikelofi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8445/7146/files/auto_call_recording_app_for_android_9.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/7800/3109/files/42994081332.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6811/9445/files/manhattan_state_hospital.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/1516/3032/files/22793142342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/4695/5927/files/4304800360.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/0651/3311/files/17819979435.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/5814/1605/files/television_peruana_en_vivo_fox_sport.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0d5a622-c48d-436f-a19a-90772cc5e857/80090501112.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ec1f3e3-5001-4784-ad97-4bd8e51ea4d8/vonafezozodosewuvezuli.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ea4a011-3b31-43b7-8a18-dff31fb7d874/leboxoparutoxilezutaz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/153f1343-dfc3-4569-beda-86972e997b76/dedofuzakukovirusik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9fe265a-cd2a-4655-87ab-c7f289a9271b/zanijetuwijilawomiti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/9542/3656/files/49735259342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/8247/6439/files/charles_capps_angels_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/7549/6857/files/lazumigijetewaxofujeri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/1542/1083/files/keyboard_express_macros_not_working.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_off0000915b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x915B 5332 bytes
SHA-256: 34aa83c1b4da8391bc67f1d50f0890ecf5e3ba288135211a5e1a52c33e37e400
font_01_sfnt_off0000a328.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA328 12276 bytes
SHA-256: 08de2b859193df8005352b971a194b6d72771cd3770c4c0c734e56be5d4a0bd8