Malicious PDF — malware analysis report

Static analysis result for SHA-256 726c9adad385f531…

MALICIOUS

PDF

75.4 KB Created: 2021-02-24 14:59:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f1eaea39866f9459e3f0034dc8e321fd SHA-1: baee83f8eb50ee6285627dbb94de50b77e4f54d3 SHA-256: 726c9adad385f531ff021378b91a922aa5f4d7d47ca7de1211b47b0b0e700d35
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=shimano+di2+groupset+tt PDF link annotation
    • https://wabegikabakupoz.weebly.com/uploads/1/3/4/6/134668284/6357919.pdfIn PDF document text
    • https://mofalapew.weebly.com/uploads/1/3/4/3/134307760/835ee2.pdfIn PDF document text
    • https://mibajajezek.weebly.com/uploads/1/3/4/0/134017497/fusetubo_jefidunu_nalamedax_zutigigezugo.pdfIn PDF document text
    • http://sberin.xyz/agent_orange_vietnam_wartcadq.pdfIn PDF document text
    • http://jumbochecker.com/how_much_does_a_mechanic_technician_makearzzb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388619/normal_60224f8eb79b8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494139/normal_600632f37fefd.pdfIn PDF document text
    • http://all-gopro.com/screen_recorder_software_free_full_version3jtoy.pdfIn PDF document text
    • http://dorightschool.com/puwimulizbzzm.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479921/normal_5fd2cbab58e61.pdfIn PDF document text
    • https://binewetakug.weebly.com/uploads/1/3/5/3/135326509/8c2cf1ebec74d7.pdfIn PDF document text
    • http://retys.fun/wibuzdujhf.pdfIn PDF document text
    • http://lestyprin.online/percentage_profit_and_loss_worksheet_with_answersypkb5.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/bededuxotulapil/eq2_dungeon_leveling_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuduwonifa/amd_radeon_vega_8_driver.pdfIn PDF document text
    • https://s3.amazonaws.com/wutogugej/ralelizemumanuxadureg.pdfIn PDF document text
    • https://s3.amazonaws.com/wejuvono/wuzivopajoka.pdfIn PDF document text
    • https://s3.amazonaws.com/gurowozenupifi/audio_song_new_movie.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_off0000e954.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE954 5576 bytes
SHA-256: 79c9fdcf8c3875694b07194d5105b5f56c7d0b21050f70d5a0ca1c6b6ed09647
font_01_sfnt_off0000fc18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC18 10732 bytes
SHA-256: d089e605bd643159350dbc2e90265cdbe743c5f39cc4a94be5b00111a3059a86