Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfb1563bf3636d5a…

MALICIOUS

PDF

43.8 KB Created: 2020-11-09 14:57:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 90a3af6e231b4471856fb6d1b3b33b9d SHA-1: 349174bab562b7cc899f30bf46295bde4fcd42ab SHA-256: cfb1563bf3636d5a84a5ca3491487a6cb93d8d278a8964f172e0f3317e1ffb3e
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=titanium+tv+apk+file PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4383147/normal_5fa7de1e1a052.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414335/normal_5fa8a7799eefe.pdfIn PDF document text
    • https://tenaxegib.weebly.com/uploads/1/3/4/5/134583113/nisitetifiwute-pudabidus.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419654/normal_5fa695c80c45e.pdfIn PDF document text
    • https://xizilajonufu.weebly.com/uploads/1/3/4/5/134528384/pizotikowi_womelasuz.pdfIn PDF document text
    • https://kujinorenut.weebly.com/uploads/1/3/4/3/134319997/popapisoza.pdfIn PDF document text
    • https://tenabawik.weebly.com/uploads/1/3/2/7/132710661/9165533.pdfIn PDF document text
    • https://segakimorepej.weebly.com/uploads/1/3/0/7/130738797/zeputem-pozaseneforiveg-debusobadul-kijeko.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://s3.amazonaws.com/kofabube/the_calling-_wherever_you_may_go_lyrics.pdfIn PDF document text
    • https://s3.amazonaws.com/warapagefasovi/sasibumurekamidipir.pdfIn PDF document text
    • https://s3.amazonaws.com/lanorolowu/frantz_fanon_concerning_violence.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b48e24d-3421-4769-afbc-c85e5c4bb908/pokelogolan.pdfIn PDF document text
    • https://s3.amazonaws.com/sojebelevenex/lidipom.pdfIn PDF document text
    • https://s3.amazonaws.com/zebarufuridorur/oakridge_elementary_school_eagan_mn.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_off00005def.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DEF 4616 bytes
SHA-256: 97de4d15a4d5d8ffc488043499685f5f3e8d937a9656f0cf560161724eaf399c
font_01_sfnt_off00006d8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D8A 13004 bytes
SHA-256: 5a6e589b159f000ded878b0adaa551ec3c710e07ed6579b9fc4f6850513d6b65
font_02_sfnt_off0000949b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x949B 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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