Malicious PDF — malware analysis report

Static analysis result for SHA-256 12909f98594a5882…

MALICIOUS

PDF

42.4 KB Created: 2020-10-27 05:15:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 9943fbc7c62a25f2450324a1e61a3383 SHA-1: ca0a92797f1f5e45d6ac83c07620a711f40f03b4 SHA-256: 12909f98594a5882a8061e24b20777402a28534f577266310e5449464e94a779
184 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.me/123?keyword=in+contempt+tv+season+2 In PDF document text
    • https://benerema.weebly.com/uploads/1/3/1/4/131408328/fatapij.pdfIn PDF document text
    • https://dabagurujor.weebly.com/uploads/1/3/4/3/134350609/zovoximi.pdfIn PDF document text
    • https://kuvanipugeva.weebly.com/uploads/1/3/4/4/134445248/xevajiwurizuvujiri.pdfIn PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/jibigamefomoni.pdfIn PDF document text
    • https://zafozudakajadev.weebly.com/uploads/1/3/0/8/130814863/xujewonagamaxu.pdfIn PDF document text
    • https://roninuvanajeg.weebly.com/uploads/1/3/1/3/131379749/7745478.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/budup_muruketika_befusijago.pdfIn PDF document text
    • https://tanezogifa.weebly.com/uploads/1/3/4/3/134321065/jodelukovelaf.pdfIn PDF document text
    • https://fotejisatowonu.weebly.com/uploads/1/3/2/3/132302873/lojezovuxiroj_sizoxadaliru_zumivazowo.pdfIn PDF document text
    • https://bafovulik.weebly.com/uploads/1/3/1/0/131070506/8909429.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000683a.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000683a.bin)
    • https://s3.amazonaws.com/henghuili-files/5977606668.pdfIn PDF document text
    • https://s3.amazonaws.com/rawesaragegugar/mathematical_logic_for_computer_science_mordechai_ben-_ari.pdfIn PDF document text
    • https://s3.amazonaws.com/guwutivupudutu/sesipuviwux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/3210/7937/files/kuzipigaratuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/1904/2453/files/eaton_county_courthouse_friend_of_the_court.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_off0000683a.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000683a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x683A 5080 bytes
SHA-256: 5bb84c58e063b32d1dc11a5e3db68f23fac375e4910572d0bfbc01ff7b3ffcab
font_01_sfnt_off0000796e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x796E 10436 bytes
SHA-256: ad9e8c27a283818619359eee735a76c21149ad90c6f0cac10a2b3a9154d65bc4

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