Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdd0d905cec150e6…

MALICIOUS

PDF

71.0 KB Created: 2021-02-27 12:51:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7e2b68886f6b354235980a1445d818d6 SHA-1: c8a05ee9ec4e751c9fe1a7fdb4e0c214b4949fca SHA-256: fdd0d905cec150e6c099c8ce1a89c17bdf7b5adec3e7064da039a09dac963d9a
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://xajibur.ru/award?keyword=are+human+trafficking+victims+kidnapped PDF link annotation
    • https://cdn.sqhk.co/tosobulig/hcugeIV/82067924006.pdfIn PDF document text
    • https://cdn.sqhk.co/kugoxepif/aCAgdxP/police_siren_sound_download_djpunjab.pdfIn PDF document text
    • https://cdn.sqhk.co/jogepirar/iVhi8RC/smash_hit_2_online.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418984/normal_6038c45abce24.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/votawawo/lagu_perbual_averiana_br_barus.pdfIn PDF document text
    • https://s3.amazonaws.com/xukonakefules/what_is_corporate_identity_design.pdfIn PDF document text
    • https://s3.amazonaws.com/fivebo/panofaziwepazopitenej.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawe/vsco_x_gratis_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/rolefosiju/49890007212.pdfIn PDF document text
    • https://s3.amazonaws.com/levovod/20743166311.pdfIn PDF document text
    • https://s3.amazonaws.com/boxalewijim/59920651409.pdfIn PDF document text
    • https://s3.amazonaws.com/viromibukoleliw/sainik_school_lucknow_admission_form_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/xapijifas/mobile_phone_number_tracker_app.pdfIn PDF document text
    • https://s3.amazonaws.com/zarelusipofox/23945567572.pdfIn PDF document text
    • https://s3.amazonaws.com/libusamagowuvo/77167632003.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_off0000d9a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9A3 5652 bytes
SHA-256: f928cf6ec5b250060b317f6a6c57129494224a523336bf22db4bf06f6189481a
font_01_sfnt_off0000ecbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECBB 10048 bytes
SHA-256: ee6f878cedbec4b81e0f1e98b6a29557b82542f64f31c9ef320b6a9c530aa86f