Malicious PDF — malware analysis report

Static analysis result for SHA-256 a223550b4048bf7f…

MALICIOUS

PDF

38.3 KB Created: 2020-11-09 02:03:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: bb678328db3fe5226d187967076f8f72 SHA-1: f5160c77c2e284c03832042482650416214b939a SHA-256: a223550b4048bf7fe144b0c296459d44a9871e82d3833099ee91337f4d33a535
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 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://traffmen.ru/aws?keyword=oval+white+pill+with+l374+on+it In PDF document text
    • https://nodimawajovuri.weebly.com/uploads/1/3/4/4/134431691/38ab41612cb.pdfIn PDF document text
    • https://xonuveviriniw.weebly.com/uploads/1/3/0/7/130738603/pojatuxononetew_tifizotubuw_puwumat.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://pifakimep.files.wordpress.com/2020/11/fododuxuxinoni.pdfIn PDF document text
    • https://tuviwep.files.wordpress.com/2020/11/muwumujuwo.pdfIn PDF document text
    • https://munakuwujeju.files.wordpress.com/2020/11/download_logarithm_and_antilogarithm_table.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0292adb-685c-464e-9734-8e9778381fa0/malusip.pdfIn PDF document text
    • https://xobonub.files.wordpress.com/2020/11/jolin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5f83ef6-6b1a-430e-b8d7-e0bebbbf840a/zutidipikipuwisuvagoju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa95a4db-52ce-4d36-b748-287aab8f05e6/hhmi_biointeractive_bacterial_identification_virtual_lab_answers.pdfIn PDF document text
    • https://worutofufun.files.wordpress.com/2020/11/i_95_accident_caroline_du_sud_aujour.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd9ee393-6ca5-49ff-94a6-6d624c1da0eb/redemption_for_jessika_walkthrough.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/gelatevopumesukijow.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004b05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B05 2888 bytes
SHA-256: f5ffd33d819fef3bbaa14510ee4901058a8837130854b1a5958ee82851db0796
font_01_sfnt_off0000554a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x554A 5144 bytes
SHA-256: 84249c109d4a57eff0b77ab313e8ac6244ac4b5fcfb110951326caf316025d10
font_02_sfnt_off000066f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66F2 10288 bytes
SHA-256: 1f08826b9a659b00409ef4ad016aedb99a2fc788ac177e6acd552d927b3a68a5

Open this report in the interactive analyzer, or submit your own file for analysis.