Malicious PDF — malware analysis report

Static analysis result for SHA-256 0005e2f0e84f9fcf…

MALICIOUS

PDF

40.0 KB Created: 2020-10-16 07:12:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: a4ae72354ece1a5324985a5bd0bce199 SHA-1: 6eb22d7310317df8e9175cfb41cf64bd7a50e573 SHA-256: 0005e2f0e84f9fcf00a1f2ccd0a52cf2f78a5ea1043848aa870a0c415190b4cd
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://gettraff.ru/pify?keyword=descargar+diccionario+nahuatl+pdf In PDF document text
    • https://xebikazogede.weebly.com/uploads/1/3/2/7/132740990/vexilaxowiro.pdfIn PDF document text
    • https://podesasi.weebly.com/uploads/1/3/1/4/131437149/1641626.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/dbbd04.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/roriturosiw.pdfIn PDF document text
    • https://walijogopabo.weebly.com/uploads/1/3/0/7/130776167/3067697.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367674/normal_5f87de25d2cd7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365627/normal_5f88fe609a005.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367289/normal_5f879c43bc4ef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365649/normal_5f8752c8c1d01.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369187/normal_5f8911ce5aa16.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365998/normal_5f88f79c911b1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368226/normal_5f883c1daad4f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368485/normal_5f87a7151ecee.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/1/0437/6104/1559/files/76420642836.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/6826/0004/files/osseo_senior_high_staff.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db964caf-1d5f-4746-8ed6-c4472a80baae/gifexi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/196bd3a1-7489-478e-921e-7d63e936d4df/dazupiwoj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bab62102-eac1-4c46-a344-d80a9d423821/gajejapimenejobasa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/151f33d7-09a7-49b9-933f-db215450e508/xatikoxajeziz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47d2316a-eda4-4d9a-ad64-3e29552eb029/65724398483.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/401c40bd-06d4-4a95-b2d7-263f23858428/lojemidadu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43e686c0-e42e-478c-b359-2447b7b67408/24367183532.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec54fb07-6711-4d86-ac69-eca1c9980c23/tijaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd9de46c-3dba-4c0f-9bbc-c85ae495ccde/45280849728.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c6011d3-70a9-4325-8fc5-83b098c9d4b0/samadisoluresojolesuje.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_off00005883.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5883 5416 bytes
SHA-256: fb471db071e32e13ec478de03c0fc5e0546a5bd1e9718944098d3c43f2cb19d4
font_01_sfnt_off00006ae2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE2 11556 bytes
SHA-256: 4697b1ea39764a1af8b1dbe6a91a6257c994864cdeee81d688d5e2be892da9ad