Malicious PDF — malware analysis report

Static analysis result for SHA-256 fba6a5d2053fcf58…

MALICIOUS

PDF

50.3 KB Created: 2020-11-07 01:59:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 0307a828193ad3f2653508b4ce41e504 SHA-1: fafb13c11de03c1624ba60f1842c895d40116ce3 SHA-256: fba6a5d2053fcf58bd7b8d007c5de512407f682a6ba8a8083b7524e3825a7377
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafffi.ru/aws?keyword=how+to+throw+a+curveball+with+a+swerve+ball PDF link annotation
    • https://nijubalalo.weebly.com/uploads/1/3/1/4/131453980/6177542.pdfIn PDF document text
    • https://vupubajuxik.weebly.com/uploads/1/3/4/4/134492473/8733719.pdfIn PDF document text
    • https://zipuwuxa.weebly.com/uploads/1/3/4/3/134376087/ketogi.pdfIn PDF document text
    • https://pavowojavujide.weebly.com/uploads/1/3/1/3/131398322/6403867.pdfIn PDF document text
    • https://gefusuteluvis.weebly.com/uploads/1/3/4/5/134595196/wewolujotel-dixugufuzatumas.pdfIn PDF document text
    • https://rolosakuzorega.weebly.com/uploads/1/3/1/3/131379035/3a08eab74fbcd.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/vudodapazepipux_kijemomebegax_velagokotukif.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/febopa/54855118729.pdfIn PDF document text
    • https://s3.amazonaws.com/leteraxewe/gufomerakidafa.pdfIn PDF document text
    • https://zapawex.files.wordpress.com/2020/11/osha_illumination_standards.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/330dc65e-d1d8-4d78-ba83-f434d41b827e/full_songs_unblocked.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ca9f62c-3dca-44df-91a9-17c6d512c437/41827371612.pdfIn PDF document text
    • https://felibule.files.wordpress.com/2020/11/povunikilelivu.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_off00008608.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8608 5140 bytes
SHA-256: 23926d0b0ed7c57f5d9778768f2b2630fca01b2402faae934645c937c013a4cb
font_01_sfnt_off00009790.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9790 10648 bytes
SHA-256: 0bed300a93002bbdcc9574bef81032911d77a0b5d70af194dd16ff712586d59a