Malicious PDF — malware analysis report

Static analysis result for SHA-256 c34f672234eb99cb…

MALICIOUS

PDF

76.1 KB Created: 2021-01-28 13:15:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: affb5aeac853e71d35b4efb28c00d4a5 SHA-1: 592745f5d7e60b0660c5bc55d73f2e1dff207bea SHA-256: c34f672234eb99cbcdc00c5e1079739f6859cb9960b5285cb788113ae19d885c
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=cessna+208b+grand+caravan+maintenance+manual PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4454977/normal_5ff683837f4b2.pdfIn PDF document text
    • http://afracheat9.xyz/garfielf_voice_text_to_speechcx7y2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393883/normal_6012396ea96ef.pdfIn PDF document text
    • http://idealslim-ordina.site/cypress_hill_discography_torrentu5p85.pdfIn PDF document text
    • http://trixy-matrix.space/wooden_castle_blocks_ukj3cbp.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466379/normal_5ff812a729307.pdfIn PDF document text
    • http://verification-help.com/mac_10_neon_rider_stattrakso604.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456685/normal_5fddb71e97503.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391340/normal_6009f529689ef.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/vinejivunitego/31724560334.pdfIn PDF document text
    • https://s3.amazonaws.com/bezorito/warhammer_40k_grey_knights_painting_guide.pdfIn PDF document text
    • http://xaxidos.epizy.com/5th_symphony_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/vipuxafol/26067793399.pdfIn PDF document text
    • https://s3.amazonaws.com/risisipajole/zebotifen.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxime/json_formatter_sublime_text_3.pdfIn PDF document text
    • http://tegiledo.epizy.com/xujudugilogapisefezujet.pdfIn PDF document text
    • https://s3.amazonaws.com/genijusemu/gikotokuwetanisemazolak.pdfIn PDF document text
    • http://badiwofotafazol.epizy.com/70028645866.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_off0000e8b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8B0 5832 bytes
SHA-256: d1627ebdb3d0ba996e02c8e6eb8d70b252051d92257ea6d88cf805c5b2684a3f
font_01_sfnt_off0000fc69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC69 12736 bytes
SHA-256: 9b9b253d5c8757cc44a4df73d736947a529c57145f8cec137e0fe64fe7446a72