Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a0179594cce262e…

MALICIOUS

PDF

49.0 KB Created: 2020-10-17 21:41:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e5a1e5e312ff0ae578d23442d36bcfd2 SHA-1: 8a0e4e975d30c7a8535c91fa23ae65fc3dade82a SHA-256: 4a0179594cce262e9911847e13e722dcd51d91822ad4839e696b0b784a91907c
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/123?keyword=jeux+oculus+gear+vr+apk In PDF document text
    • https://cdn-cms.f-static.net/uploads/4367927/normal_5f8912bab29cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365606/normal_5f884417b13dc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367640/normal_5f87b8b5ea042.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366645/normal_5f87dfad48774.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378618/normal_5f8a6f295ed68.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369647/normal_5f8a90af566d5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/3235/4205/files/saline_rec_center_swim_lessons.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/2258/8320/files/wadena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/5875/7277/files/xovusegutikomidozola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/2166/4160/files/muteto.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5efcdb7-df4b-4830-8c63-67d6d0855145/39449017362.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e66197b4-0a70-4331-9bf8-a054f07abd31/14692682836.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e303df7-0ba5-4c23-81a5-321b96b52a9f/rojirasizasubegosatune.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ffef7c30-cb21-4ef7-af0f-1f446453fdb6/betotibeva.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c63f4eab-964b-477b-8201-600ebbfd58f9/74203800308.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/467bb643-df3a-4b21-bde7-cab137a1b7a4/vimawal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/710ba455-c67f-4f43-8b92-5c0cd718250c/wezofupow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/6738/7303/files/lalupikakexixu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7149/4554/files/isms_understanding_art.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/5540/5992/files/r3_zoning_nj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0469/0349/2770/files/latest_bangalore_city_map.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
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000071d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71D5 5284 bytes
SHA-256: ea2c05434451775733dedae1dddf23a5d653b8e3ebfc170672c3bd0db25c4032
font_01_sfnt_off000083e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83E1 6068 bytes
SHA-256: 58b4873d33ac9fffaf45ed1a2312b8eb5fadf3b067e77f8cfe9e87095f6a7717
font_02_sfnt_off00009392.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9392 10160 bytes
SHA-256: e0a7eba48b872cf4eec841d20ea21d0d758e87cb4d63ffcaefac141743ac0ef5

Open this report in the interactive analyzer, or submit your own file for analysis.