Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ddaca6026930c05…

MALICIOUS

PDF

68.5 KB Created: 2021-02-07 12:29:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 79af1f452532d0969bc1579a301c85ba SHA-1: 0aaae6dcbb06bbd848eaefc92158538b4f26c41e SHA-256: 1ddaca6026930c055f789873e3cc2a48dcca3d419906e44085d8e871a1a4aac5
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/aws?utm_term=my+favorite+things+sheet+music+piano+pdf PDF link annotation
    • https://cdn.sqhk.co/jagakutojut/U1XlH5F/great_soccer_skills_to_learn.pdfIn PDF document text
    • http://famuxapow.iblogger.org/vevegixazatiwojuz.pdfIn PDF document text
    • https://cdn.sqhk.co/xusovatovu/j7ChbHl/96794129108.pdfIn PDF document text
    • https://cdn.sqhk.co/vafodagusun/cMhc2Qd/tenopedanezimavuvotufeb.pdfIn PDF document text
    • https://cdn.sqhk.co/jakufomego/LjcHQaY/live_weather_radar_map_europe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470405/normal_600c203598d4f.pdfIn PDF document text
    • https://cdn.sqhk.co/zifegowuf/yhghbKU/zororalovokesivesewe.pdfIn PDF document text
    • https://cdn.sqhk.co/foroboreb/geyLpUw/dukaxejexijewimevisanagab.pdfIn PDF document text
    • https://cdn.sqhk.co/pevipulakas/8HPgiKr/helicopter_crash_california_firefighter.pdfIn PDF document text
    • https://cdn.sqhk.co/buxoxurobewi/Thijbub/sharpening_stone_wheel.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/kufazete/mechanical_drawing_notes.pdfIn PDF document text
    • https://s3.amazonaws.com/kewakuko/95811659120.pdfIn PDF document text
    • http://giraxajo.epizy.com/89859752431.pdfIn PDF document text
    • https://s3.amazonaws.com/xakapudakadu/parking_allotment_letter_sample_format.pdfIn PDF document text
    • http://jafufalabo.rf.gd/45778390478.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_off0000ce49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE49 5704 bytes
SHA-256: 384dc86a4dfa1c1278445bc373897fa046c6f75c1fe9200ad22541d5ded10705
font_01_sfnt_off0000e1b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1B1 10324 bytes
SHA-256: d3790e9599c3855ad6810b67fd558d9378a4455d75751101cc38d203a7f66533