Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd24dc84e85bdc55…

MALICIOUS

PDF

84.1 KB Created: 2021-02-18 15:49:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 02936e76946f5fd141255209cc0bc08d SHA-1: f7f5333e544182adc91cfbb7301661984ee069cc SHA-256: fd24dc84e85bdc55cdf231dce1d8e8b648aca8816a64e2222e9e482eb80163e7
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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=the+negro+artist+and+the+racial+mountain+citation PDF link annotation
    • https://cdn.sqhk.co/numiwufeguv/QQjja8p/lositezikakigev.pdfIn PDF document text
    • https://cdn.sqhk.co/nisugavu/QuLtjbe/ping_pong_the_animation_episode_list.pdfIn PDF document text
    • http://sesosorav.iblogger.org/91558336640.pdfIn PDF document text
    • http://abanca-electronica.com/adhar_card_password_2017q2iun.pdfIn PDF document text
    • http://keto-s1.com/xarobelirelubaz9ay90.pdfIn PDF document text
    • http://app-3null.com/death_anniversary_invitation_templatexf2s4.pdfIn PDF document text
    • http://jolaxamitagifa.iblogger.org/xafalaxaterezavaxow.pdfIn PDF document text
    • http://nefuwumimo.iblogger.org/major_depression_treatment_guidelines.pdfIn PDF document text
    • https://cdn.sqhk.co/vibisidumes/taoheo8/subway_simulator_3d_pc.pdfIn PDF document text
    • http://busurman.space/how_do_you_become_reiki_certified2wcfj.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/dosipive/5447093805.pdfIn PDF document text
    • https://s3.amazonaws.com/fisulefajow/bubbleupnp_android_cracked.pdfIn PDF document text
    • https://s3.amazonaws.com/belopudevuzuza/zajaredi.pdfIn PDF document text
    • http://momosetid.rf.gd/31539770540.pdfIn PDF document text
    • http://rubuvajaroxe.epizy.com/itv2_plus_one_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/nonipesikiri/tefodidiketaged.pdfIn PDF document text
    • http://bonejaje.rf.gd/63647325135.pdfIn PDF document text
    • http://putesedesupelo.epizy.com/25964100309.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_off00010db2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DB2 5300 bytes
SHA-256: 628e360c69086182fe09a475532fb1ce0094dc4929dad31d1c505cc0316ce599
font_01_sfnt_off00011f8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F8E 10528 bytes
SHA-256: f03717d5fcb22af60541f5bf895d5f2b3c1ef2d543a40df84233c38800c255d0