Malicious PDF — malware analysis report

Static analysis result for SHA-256 35a603d31315ab7e…

MALICIOUS

PDF

68.2 KB Created: 2021-02-19 00:19:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7addbcfabc7c65268fe8f836a8c1a024 SHA-1: a9cf222a845fae46b1d3a4822c40d4033e2cc090 SHA-256: 35a603d31315ab7e3945e4ea5feea4b309f02abddcc5eb6e18d99392b33182e2
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://jottigo.ru/wb?keyword=in%20christ%20alone%20my%20hope%20is%20found%20hymn%20tune PDF link annotation
    • http://bofesota.66ghz.com/34532584460.pdfIn PDF document text
    • http://bamitizelomodil.22web.org/raxegufetor.pdfIn PDF document text
    • https://cdn.sqhk.co/zubavagi/2WjcVYL/tower_defense_galaxy_war_tips.pdfIn PDF document text
    • http://1xbet-registrat.site/940831454256wxz2.pdfIn PDF document text
    • https://cdn.sqhk.co/raxuzuvuluf/rhfb5GG/free_online_video_editor_with_effects_download.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/zupenafud/python_crypto_library.pdfIn PDF document text
    • https://s3.amazonaws.com/fukezavazuj/wapimabafe.pdfIn PDF document text
    • https://s3.amazonaws.com/gomakobez/what_does_software_development_life_cycle_mean.pdfIn PDF document text
    • http://zifasodokid.epizy.com/apc_smart_ups_3000_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/rilexazejuzovep/hepatitis_c_treatment_aasld_guideline.pdfIn PDF document text
    • https://s3.amazonaws.com/jezaxojipevu/audient_id44_driver.pdfIn PDF document text
    • http://rakutekapo.epizy.com/rujome.pdfIn PDF document text
    • http://suzufesa.epizy.com/45545664719.pdfIn PDF document text
    • https://s3.amazonaws.com/fejenijovekozu/tuvatanofufomaja.pdfIn PDF document text
    • https://s3.amazonaws.com/gidibesuxi/26053127391.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_off0000cb1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB1C 5432 bytes
SHA-256: ab1c146e4fa1c6de15dc9d8a28684610fb447c9e6f1f879bc5fff3d37b3c7a4d
font_01_sfnt_off0000dd74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD74 10676 bytes
SHA-256: b674d2543690ff227401d220d976cd92c1d7431cbae4587e28660241a8c7d2f7