Malicious PDF — malware analysis report

Static analysis result for SHA-256 97c1643110c6a05b…

MALICIOUS

PDF

73.2 KB Created: 2021-02-18 01:07:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4d64538eb0b6346c6f6cc48ec2fbd459 SHA-1: 07687274297d8dee14ad568329e63fbf80aa2438 SHA-256: 97c1643110c6a05bc53f96a3ce5cef28963b76ec2e247303bfec3c33ecd8733e
136 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
  • 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://druttle.ru/wb?keyword=what%20is%20the%20best%20brand%20of%20fridge%20freezer%20to%20buy PDF link annotation
    • http://medicinfo.online/c_template_instantiation_compilexxjro.pdfIn PDF document text
    • http://fruitslope.online/skycraft_minecraft_server_ipufdxz.pdfIn PDF document text
    • http://e-devletturkiyeaidatsistemimgovtr.com/mesure_de_masse_cm2_evaluationrqrqr.pdfIn PDF document text
    • http://spiritstudio.ru/best_ugandan_love_songs242ea.pdfIn PDF document text
    • http://hydrofthol.space/27378571153575ug.pdfIn PDF document text
    • http://santaparker.store/dukeloxtuilj.pdfIn PDF document text
    • http://usersdeviceprotectionservice.site/gramatica_ingles_completo_gratisdyakq.pdfIn PDF document text
    • http://sawawobutexukut.iblogger.org/alpolic_standard_sheet_sizes.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/takurugilij/coreldraw_for_mac_os_x.pdfIn PDF document text
    • https://s3.amazonaws.com/fumiposamisur/miwexinozovevakelumakutik.pdfIn PDF document text
    • https://s3.amazonaws.com/gurupixabogivaz/65513784156.pdfIn PDF document text
    • http://xodolipifonabo.epizy.com/busefedoviruwaw.pdfIn PDF document text
    • https://s3.amazonaws.com/lotibabakuj/codycross_answers_group_207_puzzle_4.pdfIn PDF document text
    • https://s3.amazonaws.com/palevijuj/wujimowusiterokizitigapu.pdfIn PDF document text
    • http://wufizomofoduzin.rf.gd/x96_mini_android_media_tv_box.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_off0000e1b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1B8 5444 bytes
SHA-256: d7c440a4995a290e5542c07f11f41d3cf016db15a7cfe67976402492d3134db8
font_01_sfnt_off0000f44f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF44F 10512 bytes
SHA-256: ec61f74465f5a451326680791e1c1a4511873298f8e3f235a27a436f81aaff55