Malicious PDF — malware analysis report

Static analysis result for SHA-256 d99701d00a91acc5…

MALICIOUS

PDF

69.3 KB Created: 2021-01-21 01:46:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6a9816627bad8f0d7880082d16ac9a74 SHA-1: 7ffa3f75a6008ef663816991f7190785087e73a4 SHA-256: d99701d00a91acc5349fe56be1c0590b2322a5f8ea0b8ad9fe99f751bcfa71c7
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://baarspo.ru/123?utm_term=tennessee+unclaimed+property PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4482623/normal_5ff7de0ae001f.pdfIn PDF document text
    • https://cdn.sqhk.co/werutojij/E1lwtif/raborovesedinutele.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381788/normal_5ff7c201bafc7.pdfIn PDF document text
    • https://labivorimafixal.weebly.com/uploads/1/3/4/8/134886738/6124812.pdfIn PDF document text
    • https://tajaleder.weebly.com/uploads/1/3/5/3/135320318/5833947.pdfIn PDF document text
    • https://cdn.sqhk.co/liregagibago/5nicsji/73100988604.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470222/normal_5fd8fbe348540.pdfIn PDF document text
    • https://ronupajowosoza.weebly.com/uploads/1/3/4/8/134871490/zokalefan_movigijutabe_rumolug.pdfIn PDF document text
    • https://site-1176507.mozfiles.com/files/1176507/19356083384.pdfIn PDF document text
    • https://site-1177387.mozfiles.com/files/1177387/edhesive_unit_4_exam_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/wevexifimur/GhdXGgi/true_surface_vibe_v_parts.pdfIn PDF document text
    • https://cdn.sqhk.co/jigavozef/iijf5sy/ps4_flying_games_2018.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484370/normal_5fcf6f43b0678.pdfIn PDF document text
    • https://site-1246059.mozfiles.com/files/1246059/vip_betting_tips_apk_cracked_2018.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/wazotojemov/autumn_s_concerto_episode_1_eng_sub.pdfIn PDF document text
    • https://s3.amazonaws.com/buponuwebi/rose_good_morning_photo.pdfIn PDF document text
    • https://s3.amazonaws.com/fadupazageraf/affirmative_action_plan_forms.pdfIn PDF document text
    • https://s3.amazonaws.com/jovekus/46048556504.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_off0000d20f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD20F 5268 bytes
SHA-256: cb1da4600f8d2c4373c95ba4fb5cfbb8613e7c8890f106a35cd17a2a9d12b2a9
font_01_sfnt_off0000e3ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3EE 10636 bytes
SHA-256: daf66ff474d8c3db9cac2c23447f38d7b5c9f3519f43588ce21a8705475a17d2