Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7e2580b46997d92…

MALICIOUS

PDF

47.6 KB Created: 2020-11-08 20:23:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 7713f6d5520ea0586581cb782f9a3a6d SHA-1: b33d2b57a5315dd52f67126d58f3eb50e86f250f SHA-256: d7e2580b46997d923cfcffb5dd3af3b7520a028213d1d18bb113b523527d5556
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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=unblocked+games+77+basketball+stars PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4455375/normal_5fa4506b4eca3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393353/normal_5fa4308524647.pdfIn PDF document text
    • https://kubupukadumu.weebly.com/uploads/1/3/1/3/131382740/wefojeze_kesinaduriza_fivoresem.pdfIn PDF document text
    • https://pejopazuzaguwoz.weebly.com/uploads/1/3/2/8/132815183/xudiletafini.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371523/normal_5f9afa70967b6.pdfIn PDF document text
    • https://juleladenoduko.weebly.com/uploads/1/3/4/4/134478401/vopozejomiwasadif.pdfIn PDF document text
    • https://xigokerurubupa.weebly.com/uploads/1/3/4/3/134312623/bb2eb6ea0cd8b2.pdfIn PDF document text
    • https://puzaloraren.weebly.com/uploads/1/3/4/5/134510283/novikoluponupa-palejexuwaju-jutimeregirosij-dogaz.pdfIn PDF document text
    • https://kokexofagisukop.weebly.com/uploads/1/3/2/7/132710589/902d10b446e3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369903/normal_5f9fc9f6da459.pdfIn PDF document text
    • https://tetoferapijala.weebly.com/uploads/1/3/1/6/131606168/1894479.pdfIn PDF document text
    • https://daletutanedura.weebly.com/uploads/1/3/1/6/131636587/1364558.pdfIn PDF document text
    • https://vonubaxuted.weebly.com/uploads/1/3/1/4/131452839/7046257.pdfIn PDF document text
    • https://dabituge.weebly.com/uploads/1/3/4/3/134344098/fewilutanubera.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://tuluvomak.files.wordpress.com/2020/11/babasaheb_purandare_raja_shivchatrapati.pdfIn PDF document text
    • https://rirabizujito.files.wordpress.com/2020/11/a_clash_of_kings_audio_free.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_off00006ea7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EA7 5276 bytes
SHA-256: 29048a829f0d1a31150aa69eac65841aa3f553024848dd8bdc63b7924b3d4367
font_01_sfnt_off0000807e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x807E 10156 bytes
SHA-256: 93821579095ab16a647687dbc286443ae28a00b9aabde1b2947fd740ddc0eab0
font_02_sfnt_off0000a34e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA34E 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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