Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a46b742364d38ef…

MALICIOUS

PDF

73.8 KB Created: 2021-03-05 01:22:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 7456ca22c7805e52e78acda8ecb17aa4 SHA-1: 0c612f16825a57447cb7ffa01b4c26da5be00e43 SHA-256: 2a46b742364d38ef08f41284ed495ceb61267c46848cb59cbc010df235a03eba
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://ponafet.ru/award?keyword=how+to+prepare+for+a+cyber+security+career PDF link annotation
    • https://cdn.sqhk.co/kupejabel/YidTFha/gusowu.pdfIn PDF document text
    • http://tinuliv.22web.org/xemaxebafojigedanim.pdfIn PDF document text
    • https://cdn.sqhk.co/puwipaneke/I4WTgdM/applock_pro_fingerprint_pin_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/wafavalufa/fwuXVlp/cool_wood_projects_to_sell.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451039/normal_5fe8d6173f13f.pdfIn PDF document text
    • https://cdn.sqhk.co/vofonowul/aY4VDgT/symphonic_black_metal_radio_online.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485322/normal_5fe2c56ad5a72.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499329/normal_5fde9dabe3d68.pdfIn PDF document text
    • https://cdn.sqhk.co/nizivatitogu/fljhghs/gawolotibusakepuvodose.pdfIn PDF document text
    • https://cdn.sqhk.co/zapevexuvot/fBhgn4g/vazitaduwuwek.pdfIn PDF document text
    • https://cdn.sqhk.co/mafowixodi/ivhdeIk/country_road_trip_songs_2018.pdfIn PDF document text
    • https://cdn.sqhk.co/dufukeraj/iiHiec2/jepekididuvu.pdfIn PDF document text
    • https://cdn.sqhk.co/nexoratuxi/gjcibge/oscar_health_plan.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/25bcaa83-47d1-4617-9ba7-b1bbe3d3b3ff/cabelas_meat_grinder_parts_diagram.pdfIn PDF document text
    • http://natadomemorad.epizy.com/nellai_anthem_video_song.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/16eaf46f-8d75-4d2d-87dd-4dd483ca32ce/how_long_to_be_a_general_dentist.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa93d5d0-2dc5-442e-a23f-90c2aa3bceca/gen_math_grade_11_answer_key.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c9524ab-7e13-4752-8071-4ffbd6601205/starcraft_boats_reviews.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_off0000e56a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE56A 5272 bytes
SHA-256: baadd7939df5249994abf49134d64e7c2c4e8f15b7e2232d00edb99f3cc148c1
font_01_sfnt_off0000f77d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF77D 10096 bytes
SHA-256: f0babf831f6a2b0ba1d51dabd2903ae2b76680dd2f41f83024a0ddfddf8dec71

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