Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2c135af25cd2111…

MALICIOUS

PDF

73.0 KB Created: 2021-02-07 22:52:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 29e3a46a6b7576671e21b6f4520ac8f2 SHA-1: b5808a6eb7753c176d7824f88d5024a17243cebf SHA-256: d2c135af25cd21118414f8e44dac4fda70d1d6455eab1220179b480bc1cd8f26
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/wb?keyword=frontline%20commando%202%20mod%20apkpure PDF link annotation
    • https://cdn.sqhk.co/kavejufa/ogjVSjj/disassembly_3d_demolition_mod_apk_unlocked.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372681/normal_600efc8fef348.pdfIn PDF document text
    • https://cdn.sqhk.co/tivinarafuvu/ifhigdT/superhero_mods_for_minecraft_1._16.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4505771/normal_600b92709de20.pdfIn PDF document text
    • https://cdn.sqhk.co/doxufojixene/6lYthgw/rockin_jump_ninja_course.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384295/normal_601ba7b6219a1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496378/normal_5fe8f2c1460bc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366036/normal_6014146a5592d.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/sizabo/221784209.pdfIn PDF document text
    • http://romamosok.rf.gd/bangladesh_railway_application_form_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/futamo/85844902966.pdfIn PDF document text
    • https://s3.amazonaws.com/padanivozeb/alka_seltzer_rocket_lab_report.pdfIn PDF document text
    • https://s3.amazonaws.com/vavabi/jewelry_business_card_templates_free.pdfIn PDF document text
    • https://s3.amazonaws.com/serogajugomiji/formation_biologie_mdicale_au_senegal.pdfIn PDF document text
    • https://s3.amazonaws.com/jasipefulaxiduj/fakunilo.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_off0000d4ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4AC 5192 bytes
SHA-256: 26c585d1b5b12eb213b952dd1e59ddbe272df2297c9b70a9aa1930d85bbc1d73
font_01_sfnt_off0000e643.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE643 15248 bytes
SHA-256: 9b8d4e02bd53820182b23efa6c2dde0de064fcd93c9e0366fec6f9b5c11fad98