Malicious PDF — malware analysis report

Static analysis result for SHA-256 a46be35cd79bc3d2…

MALICIOUS

PDF

76.3 KB Created: 2021-02-28 12:34:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 548788cfe27951da9c9df37cbdf1746d SHA-1: 459d043402e9d2d8be97079c39f8125b2f64bcae SHA-256: a46be35cd79bc3d2b8d6b690cddba7e1f23a39469ef05b98a6a6afedc6ef2980
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://botokaw.ru/award?keyword=top+penny+stocks+on+robinhood+2021 PDF link annotation
    • http://ch-redirect.icu/affidavit_form_nswiom3r.pdfIn PDF document text
    • https://cdn.sqhk.co/bojojiweg/cjbvjdG/luwaludogomaraton.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422392/normal_600ac79d7b1a2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388048/normal_5fce45b63dc6b.pdfIn PDF document text
    • https://cdn.sqhk.co/nogorodizet/hMgi2MF/ritapu.pdfIn PDF document text
    • https://cdn.sqhk.co/rajemaramiw/Twidgiu/xuxurelebirapafulafejenur.pdfIn PDF document text
    • http://kernig.store/53907441503zxc1a.pdfIn PDF document text
    • http://6gusevshop.space/vusatuwsp8.pdfIn PDF document text
    • https://cdn.sqhk.co/pifixijowoka/ggVicjd/20134873536.pdfIn PDF document text
    • http://thecet.xyz/how_to_develop_editing_skillslqcbk.pdfIn PDF document text
    • https://cdn.sqhk.co/bulelovuroga/gdhjiO9/business_games_for_management_students.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/vetamedisoz/zixoluv.pdfIn PDF document text
    • https://s3.amazonaws.com/zewimu/chevrolet_impala_2010_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/xalexojaxipud/banjara_movie_punjabi_song.pdfIn PDF document text
    • https://s3.amazonaws.com/mibiwivanetuj/latozaxomeruvo.pdfIn PDF document text
    • https://s3.amazonaws.com/zabejuvijolu/cause_and_effect_of_water_pollution_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/gizonukorad/supalo.pdfIn PDF document text
    • https://s3.amazonaws.com/tabobujimo/22870316270.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_off0000edc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDC5 5500 bytes
SHA-256: 9d1276957779567fbb463e7a423d3f2791dd4f70c84dd0bbe10abf9ddd4e4ede
font_01_sfnt_off00010084.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10084 10412 bytes
SHA-256: c8d443843850bf65de2fc30c261b8fa14cb5989790d7197145b8036c0452cf11