Malicious PDF — malware analysis report

Static analysis result for SHA-256 f15e775749af1449…

MALICIOUS

PDF

71.4 KB Created: 2021-02-18 05:36:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0bc556a8518f935cb5c3a3849b6c0640 SHA-1: 60d33e4196e21e723ad5e501cb6b14a7025f80b3 SHA-256: f15e775749af1449babd60745d5443a3f0a7613ef8c1b2373fcb150f55ee8c57
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://seumenha.ru/wix?keyword=an+easyguide+to+apa+style+%25283rd+ed.%2529 PDF link annotation
    • https://wufonujixu.weebly.com/uploads/1/3/4/3/134386315/fetumopejemeko_movitas.pdfIn PDF document text
    • http://cleaner360.shop/centipede_game_free563zr.pdfIn PDF document text
    • https://kitopelok.weebly.com/uploads/1/3/4/3/134355781/nudebuv-marotab-peguxulibebek-gerazunozur.pdfIn PDF document text
    • http://itawegan.space/niwasogutokabtg7g8.pdfIn PDF document text
    • http://uggi-ugg.com/892938741050uydt.pdfIn PDF document text
    • https://papukelub.weebly.com/uploads/1/3/4/6/134666119/6107252.pdfIn PDF document text
    • https://gokuxevi.weebly.com/uploads/1/3/4/0/134017514/zidoke-wolisoxanej-fefazu-nitojimu.pdfIn PDF document text
    • http://dkblogin-de.best/godiwasukujudevilibiwod6d8r.pdfIn PDF document text
    • http://ch-redirect.icu/compound_inequalities_worksheetvcqtd.pdfIn PDF document text
    • https://fuvukajewub.weebly.com/uploads/1/3/3/9/133999399/benozekofari.pdfIn PDF document text
    • https://wovofonunubani.weebly.com/uploads/1/3/1/4/131408017/594124.pdfIn PDF document text
    • https://nebuxegakox.weebly.com/uploads/1/3/4/4/134404726/xejokaruriwevob.pdfIn PDF document text
    • http://realnoe-obshenie.online/rafowi12j1u.pdfIn PDF document text
    • https://zizusufake.weebly.com/uploads/1/3/4/6/134646877/pifitinekire.pdfIn PDF document text
    • http://politach.com/89290633598vz974.pdfIn PDF document text
    • http://bioforcecolumbia.site/5_steps_to_a_54pup9.pdfIn PDF document text
    • http://megantv.site/guided_reading_lesson_plans_for_chapter_books7lm92.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://betupaxomivokab.epizy.com/97178153500.pdfIn PDF document text
    • http://jasigobup.epizy.com/ancient_egypt_timeline_ks2_worksheet.pdfIn PDF document text
    • http://jepisaf.epizy.com/40793202757.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d9e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9E9 5568 bytes
SHA-256: 0afd48417a8a1d5e1d0919b83d5fa67e7f96c4b73ec215a44f8fc9186b96ffba
font_01_sfnt_off0000ecfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECFE 10312 bytes
SHA-256: c0ff3ab78cfbd873708920450dcf7b47dd1b06d97eaa4dbc0175f276574b02b7

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