Malicious PDF — malware analysis report

Static analysis result for SHA-256 0962e18d7f1245e1…

MALICIOUS

PDF

45.9 KB Created: 2020-10-02 13:06:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: c93c009488372adeca29480382c454c0 SHA-1: 7261d64009dcf1cf6d4627b2aec7ac9a4f7a8948 SHA-256: 0962e18d7f1245e14d47e050d85004df1d9cd711b54bb61a2c60967642c0e40a
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/strik?keyword=mario+kart+8+anti+gravity+rc+manual In PDF document text
    • http://podizimix.ilovedermalicious.com/uploads/1/3/0/9/130969356/6231877.pdfIn PDF document text
    • http://files.infoislandia.com/uploads/1/3/1/1/131164117/6ac56de3361.pdfIn PDF document text
    • http://files.jacobmarkstaffin.com/uploads/1/3/1/3/131379923/vuxukixokimu.pdfIn PDF document text
    • http://vodona.killmancustoms.com/uploads/1/3/2/7/132740285/zibodinewesewelu.pdfIn PDF document text
    • http://kikepa.turfcateringkitchen.com/uploads/1/3/1/8/131871781/kenovidowinakadud.pdfIn PDF document text
    • http://zulujib.ensembleqaustralia.com/uploads/1/3/1/1/131164392/779e52eedc6b9e3.pdfIn PDF document text
    • http://files.miltonjiu-jitsu.ca/uploads/1/3/1/0/131070799/1bb89a54.pdfIn PDF document text
    • http://fijose.mikeligammare.com/uploads/1/3/0/7/130776279/893638.pdfIn PDF document text
    • http://files.tomsolaribuilder.com/uploads/1/3/1/4/131437157/jabunerod-zugefibesemer-govod-luvegigagomozaf.pdfIn PDF document text
    • http://files.yogabluetour.com/uploads/1/3/1/4/131406629/popuvaletovi.pdfIn PDF document text
    • http://files.creativethoughtevents.com/uploads/1/3/0/7/130738641/binatenol.pdfIn PDF document text
    • http://files.obituar.org/uploads/1/3/0/9/130969334/e94ee.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://uploads.strikinglycdn.com/files/11df046b-7a40-48f6-a0aa-5912c201d642/kavaw.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_off000066ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66EE 5132 bytes
SHA-256: 0c3a43a76f2ed53bab31492610acc8de0fd9c93eb6d9a272ebdbdbfe1024dcc6
font_01_sfnt_off00007858.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7858 10620 bytes
SHA-256: f18c6901d12a8c19aeb8829746d03efa3122f1d71431600b71ba389651cdc115
font_02_sfnt_off00009ca3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CA3 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71