Malicious PDF — malware analysis report

Static analysis result for SHA-256 53ca026582a2c038…

MALICIOUS

PDF

71.4 KB Created: 2021-03-06 11:54:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: dcc4aa003ce4222871c7ddfd7bc28c05 SHA-1: de1961455ed4b66deb8ffa6b55bc2c87f1ea2b1d SHA-256: 53ca026582a2c038f50c2292d823fbb2164b6df35d487cf28af06d021667ecfd
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • 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 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://druttle.ru/award?keyword=minn+kota+i+pilot+link+app PDF link annotation
    • http://exampl1214.com/997725444460d0tc.pdfIn PDF document text
    • http://tipopajokoti.iblogger.org/76503171740.pdfIn PDF document text
    • http://zuzutefiro.22web.org/nuance_dragon_home_free_trial.pdfIn PDF document text
    • http://raffle.website/strategic_planning_for_nonprofitsnkqth.pdfIn PDF document text
    • http://de-bewertung-id-q2e5t23.top/blood_bowl_2_starting_chaos_teamn06mn.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477156/normal_603a191b12e29.pdfIn PDF document text
    • http://kurixuj.sportsontheweb.net/nojapep.pdfIn PDF document text
    • http://sportita.fun/answering_machine_detection_configurationax66k.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409997/normal_600e271671108.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376099/normal_5febea2578f1d.pdfIn PDF document text
    • http://instas.site/gijexivovirugogf6d0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://dbb1fad9-9c05-458f-9e32-bc0b7f65d7ec.filesusr.com/ugd/451461_fe4d1d8b87844713b001558bbe3b9c77.pdf?index=trueIn PDF document text
    • https://7fe6b731-3703-45da-bcbe-faf39b4d3392.filesusr.com/ugd/880a7e_4865b2e3ae264915870bd488e4ff1a1a.pdf?index=trueIn PDF document text
    • https://2a4b29e6-a790-453e-81e7-e8b9caf2c27b.filesusr.com/ugd/bf0735_15f023942ac94b5f8acc0ffeeccd9559.pdf?index=trueIn PDF document text
    • https://992bddda-184d-467f-a815-0165b41a2208.filesusr.com/ugd/69695d_a7a604793a3e41d3b2c7ad1e02382ac6.pdf?index=trueIn PDF document text
    • http://sokutuwinal.epizy.com/zavujeronixaxevunex.pdfIn PDF document text
    • http://gubawakelu.onlinewebshop.net/how_to_sew_a_peasant_dress.pdfIn PDF document text
    • https://e1cd7dcf-8988-4be8-9b1a-722367337987.filesusr.com/ugd/6203b9_3355671c052247328cb0fe1353937e4b.pdf?index=trueIn PDF document text
    • https://c1d61d78-9bae-425c-b347-ee91470fe4f1.filesusr.com/ugd/60933b_bf4613edc53b414a95abc0f8a3e31974.pdf?index=trueIn PDF document text
    • https://7fd92c66-d3af-485c-b7a9-31529ddfb1b5.filesusr.com/ugd/997d0f_b24df48e300441f4984a87b3bb4ca747.pdf?index=trueIn PDF document text
    • http://kesupipipiret.onlinewebshop.net/77699380790.pdfIn PDF document text
    • https://506dbbd1-d4b3-44b1-a4c9-6b5d0cab6a23.filesusr.com/ugd/c75f60_1755a23c738848308b249f06ab5282fd.pdf?index=trueIn 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_off0000ddf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDF0 4608 bytes
SHA-256: 1c4db607fda93bc070ff592ea8958d8ceabdc0ca7303e844a2ff04bf3c3b7dce
font_01_sfnt_off0000edbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDBE 10132 bytes
SHA-256: 2dd2761cf4cc6eea50d787494a0d2c0d66fba1ebde9e52259385bcdf0d89ed24

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