Malicious PDF — malware analysis report

Static analysis result for SHA-256 e17d16c36f2949b4…

MALICIOUS

PDF

39.8 KB Created: 2020-10-17 20:11:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: e1e7d03e743e35848c2d2bf8afc82192 SHA-1: fa99b8e4b83a4f44ba55008a4b090219f8c590d4 SHA-256: e17d16c36f2949b43deb0067dc8f9e8070517589a75b3a813f1043313748b77b
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=omegle+tv+download+android In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366628/normal_5f872679aeebd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366655/normal_5f875fe8e5ec9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366316/normal_5f875b75ac604.pdfIn PDF document text
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/44d87feaf8ee.pdfIn PDF document text
    • https://netulomite.weebly.com/uploads/1/3/2/8/132814473/katenov.pdfIn PDF document text
    • https://tuxitusonodedin.weebly.com/uploads/1/3/0/8/130873989/2861344.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/8742796.pdfIn PDF document text
    • https://sesuwulot.weebly.com/uploads/1/3/1/4/131438847/nazesari.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365660/normal_5f87005e3a783.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379233/normal_5f8ae743a0f62.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366389/normal_5f87fe5e73715.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://cdn.shopify.com/s/files/1/0430/2517/0595/files/book_of_imaginary_beings.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0488/0705/1429/files/kelli_tennant_height_weight.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/7243/7406/files/zaludabakogir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a15190a-db9b-4f4b-b8b4-0d8871933c90/9423105159.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/972d5976-2425-4b82-a4f2-2278ababbfe2/22482830519.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8ceb69e-941e-42f8-920c-103ac661a513/52949092429.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af1bb2e1-639a-443c-adc7-bd8417ddefe7/jewuxelepajokasufepigape.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005088.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5088 4936 bytes
SHA-256: bd49e5d12749c3b123933e88175a04ad07b098eb719865c2de50d63e16ceb811
font_01_sfnt_off0000614d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x614D 10052 bytes
SHA-256: d263a772b0cfae4cbf3430e9708a95898b6263c1c93307f39fdf8540fb3250f2
font_02_sfnt_off000083b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83B8 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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