Malicious PDF — malware analysis report

Static analysis result for SHA-256 e550dbcaf221631b…

MALICIOUS

PDF

67.2 KB Created: 2021-02-21 02:49:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7b6550730c5ced4be3c78c5cb7e3fed2 SHA-1: e28d5be7d9d9cb585f53d9fccaaf62b58de5e3a5 SHA-256: e550dbcaf221631bf12a283ae8f211ec7a83dc8ba25cecc89347824b1a1f16cf
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/wix?keyword=above+the+barre+dance+academy PDF link annotation
    • http://sallles.ru/game_super_mechs_kizi_3pf6vs.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4529780/normal_5ff64b024175f.pdfIn PDF document text
    • http://luminar3-download.xyz/1870073914fg48w.pdfIn PDF document text
    • http://pimolala.22web.org/55915990291.pdfIn PDF document text
    • http://detonic-shop.website/9795574912075er8.pdfIn PDF document text
    • http://circus.market/new_hollywood_movies_2017_filmywapk3151.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484365/normal_6017a2b1338ef.pdfIn PDF document text
    • http://nenugatigubom.66ghz.com/voviwevorawedazofegatew.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421048/normal_60228451ade62.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384152/normal_5fda7490a045b.pdfIn PDF document text
    • http://vorugakolijek.22web.org/severopizegunuvamopevam.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490370/normal_5fd67dc721c41.pdfIn PDF document text
    • http://freud.icu/ruwofuwekaxiujda.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421213/normal_602a45270b915.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dadodoserosif.epizy.com/45965643956.pdfIn PDF document text
    • http://junulobexatini.rf.gd/43292485183.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_off0000c23a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC23A 5260 bytes
SHA-256: 08d2cfbf888758a6b700bcca8c6bac322f9fc4c463ea32755a9fb3af4754070a
font_01_sfnt_off0000d3f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3F6 1852 bytes
SHA-256: 56aab820b277fdf963b63e44449d48a133a00416359e3e985ce6bc113c31a6dd
font_02_sfnt_off0000dce7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCE7 10224 bytes
SHA-256: 26142d65dc7346883c85a2d789a6ebfce37de96f48f47ce1e11c4edc9b29f2ce