Malicious PDF — malware analysis report

Static analysis result for SHA-256 579e11073d1d2e23…

MALICIOUS

PDF

45.9 KB Created: 2020-10-16 05:03:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: a29bea4d1cf27114f3f5177a268a9563 SHA-1: e59e171f560a7f8395296920cb39d4fb4beda4d3 SHA-256: 579e11073d1d2e2324e3d94f91912c1923108b9833416b866792acc9869177da
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.link/pify?keyword=ellen+white+books+pdf+download In PDF document text
    • https://site-1043763.mozfiles.com/files/1043763/46956692356.pdfIn PDF document text
    • https://site-1039150.mozfiles.com/files/1039150/6849731395.pdfIn PDF document text
    • https://site-1040171.mozfiles.com/files/1040171/daewoo_washing_machine_manual.pdfIn PDF document text
    • https://lagukekejase.weebly.com/uploads/1/3/0/8/130815031/sarubumo-laduvoku.pdfIn PDF document text
    • https://rewemekekebaz.weebly.com/uploads/1/3/1/4/131406535/8681431.pdfIn PDF document text
    • https://nukevokisoget.weebly.com/uploads/1/3/2/7/132711970/7148620.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366952/normal_5f8730e4d1d2c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365599/normal_5f88d7de2366c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366028/normal_5f86fa24d2b3e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366018/normal_5f8756c1172ef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369788/normal_5f88c38c4c946.pdfIn PDF document text
    • https://site-1045404.mozfiles.com/files/1045404/jexurufowogiwidarimepet.pdfIn PDF document text
    • https://site-1043434.mozfiles.com/files/1043434/wilimop.pdfIn PDF document text
    • https://site-1039226.mozfiles.com/files/1039226/zaxixarufejiloxiruketa.pdfIn PDF document text
    • https://site-1043479.mozfiles.com/files/1043479/sidud.pdfIn PDF document text
    • https://site-1039693.mozfiles.com/files/1039693/haxm_installed_but_not_working_android_studio.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368475/normal_5f88c7cbf0bf8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366661/normal_5f88fb05e024f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366022/normal_5f88f02e86b33.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/1/0496/0790/1335/files/casio_wk1630_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2742/9536/files/copper_hills_high_school_football.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/1750/9274/files/david_deangelo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2304/8610/files/nox_pokemon_go_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/8049/4485/files/72078756753.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_off0000759a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x759A 5288 bytes
SHA-256: 41f6425bb79bc5a8d3d13a8b12ce89c0655fe71d55f5d00e6b90a4fd9cbf6869
font_01_sfnt_off0000879c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x879C 10128 bytes
SHA-256: 90ba8fe7256dfd7742f34b5fb91cb918c49cb2cc412f7b38fc5211c8fdfe6929

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