Malicious PDF — malware analysis report

Static analysis result for SHA-256 26d980371ca372d7…

MALICIOUS

PDF

73.1 KB Created: 2021-02-14 01:25:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 98aacb5e298abfb2efc4b3d76c39a0ae SHA-1: e39136e50920aec87369cb1843e2bb1e0de54f02 SHA-256: 26d980371ca372d7750cb3058f5cbee3a443813223cd9fac7670769778c3d2c7
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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/123?utm_term=how+does+the+nervous+system+maintain+homeostasis+during+exercise PDF link annotation
    • http://onlineeshop24.xyz/karidorakexumutopedzi3h.pdfIn PDF document text
    • http://kind-insta.site/cowboy_mouth_playx90y5.pdfIn PDF document text
    • http://igonlinesupport.com/teboluxuledemixibofueyfcd.pdfIn PDF document text
    • https://cdn.sqhk.co/kexofebiziv/mBiejie/86263181874.pdfIn PDF document text
    • https://cdn.sqhk.co/sebutarukaw/ehhgYhi/virtual_dj_sampler_sounds.pdfIn PDF document text
    • http://pe50off.info/computer_networking_skillsuhsly.pdfIn PDF document text
    • http://betmoy57.com/330087552169tvph.pdfIn PDF document text
    • http://optalpha.com/game_blocky_highway_mod_apk49nlk.pdfIn PDF document text
    • https://cdn.sqhk.co/xawemubimaj/7jGNbge/one_year_calendar_2020_template.pdfIn PDF document text
    • http://propovar.ru/amoeba_sisters_video_recap_food_web_answersdqhae.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/besafefaf/alpha_helix_beta_sheets_difference.pdfIn PDF document text
    • https://s3.amazonaws.com/vibasujefir/39949012511.pdfIn PDF document text
    • https://s3.amazonaws.com/daraniwekamidir/ryzen_hackintosh_guide_mojave.pdfIn PDF document text
    • http://lizivaxexanegov.rf.gd/72807853966.pdfIn PDF document text
    • http://xibubew.epizy.com/89827761238.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_off0000e200.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE200 5604 bytes
SHA-256: 1cdaab8e9ec70fd1856100e65500444a85fd056a14bd7b70b62120fa96b45605
font_01_sfnt_off0000f4ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4FF 9972 bytes
SHA-256: 18333f02e4e84fe9272d5a96c1ef49d95f542981fd8e0fee357d2c58951f977e