Malicious PDF — malware analysis report

Static analysis result for SHA-256 01eb88a01627ffdd…

MALICIOUS

PDF

47.6 KB Created: 2020-10-27 00:06:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 287b2cf07694d00c4ab15f68ebaf8df0 SHA-1: c4dffa33208bee429e37afb4997abe8580789028 SHA-256: 01eb88a01627ffdd7bb9f1d3573921208d0606987a41f60eefc8cb410bbf2b57
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=meadow+glen+middle+school+mascot In PDF document text
    • https://mupibidegupek.weebly.com/uploads/1/3/0/8/130874042/a3d7e1ca7523529.pdfIn PDF document text
    • https://bezebaterizijir.weebly.com/uploads/1/3/1/3/131384714/be9d9f968ff.pdfIn PDF document text
    • https://bezebaterizijir.weebly.com/uploads/1/3/1/3/131384714/golelid.pdfIn PDF document text
    • https://donibirumot.weebly.com/uploads/1/3/4/4/134463545/dabelidowojesodep.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/9051060.pdfIn PDF document text
    • https://tukibasitotaz.weebly.com/uploads/1/3/4/4/134445351/jezilorudal.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000071ed.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000071ed.bin)
    • https://uploads.strikinglycdn.com/files/1e5f1f3e-f059-4ea6-87be-9494e30db2a2/bekogajanatiputefuvutuv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed7caa28-f091-4d7b-a348-e67d06b748e7/15133771711.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a673b1ca-eb37-4feb-88e2-526e237f479b/high_oxalate_foods.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b4c903d-8bf3-49d2-a89e-d39a2e128404/51274733230.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/487f5c48-69cb-4b1e-8200-4fc9844c9dbf/mavijilex.pdfIn PDF document text
    • https://s3.amazonaws.com/gogonof/vezovon.pdfIn PDF document text
    • https://s3.amazonaws.com/jikopot/73460316103.pdfIn PDF document text
    • https://s3.amazonaws.com/fosawef/kotetik.pdfIn PDF document text
    • https://s3.amazonaws.com/pukiza/cbse_class_10_english_language_and_literature_textbook_download.pdfIn PDF document text
    • https://s3.amazonaws.com/kewakuko/begigolegorinin.pdfIn PDF document text
    • https://s3.amazonaws.com/pegek/cardiologia_peditrica.pdfIn PDF document text
    • https://s3.amazonaws.com/sevoga/absorptive_capacity_a_review_reconceptualization_and_extension.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/0193/2706/files/32556726699.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/8981/2374/files/jugelaluwibefop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/4515/7529/files/the_plague_doctor_scp.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3358/2998/files/pelican_water_softener_installation_instructions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/8746/8980/files/zovelefemonaxulofesaneg.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 extracted file (font_00_sfnt_off000071ed.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000071ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71ED 5352 bytes
SHA-256: f632a5fdcb7a5301bcd55e7e8d630a5edc411fcb4705fbdd22dcb8e7f39dff64
font_01_sfnt_off0000840e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x840E 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off00008c9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C9B 10632 bytes
SHA-256: 247391cbf350be630ea3f5e4779e07ac62cb0ebe58e7225e94392ed5e5902099