Malicious PDF — malware analysis report

Static analysis result for SHA-256 34ceaaaaaf182d4d…

MALICIOUS

PDF

43.3 KB Created: 2020-11-08 01:41:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15
MD5: 5bbead56bd3e3f4c8a7babbc696df319 SHA-1: 72b1fee5040e395a932b0b10c36425c0ea2985b3 SHA-256: 34ceaaaaaf182d4d11659355f53278c1377eba305a15aa797e6cbea8e8b20b2a
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://traffset.ru/123?keyword=weather+in+nueva+ecija+philippines PDF link annotation
    • https://sukowaletudevux.weebly.com/uploads/1/3/0/8/130874669/2e9b888e7c5461e.pdfIn PDF document text
    • https://xuzelete.weebly.com/uploads/1/3/2/6/132681171/vexud.pdfIn PDF document text
    • https://nubukagogurug.weebly.com/uploads/1/3/4/4/134495847/rigafat.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/gezejoputiwinu/all_quiet_on_the_western_front_chapter_7.pdfIn PDF document text
    • https://s3.amazonaws.com/lumixi/87151862226.pdfIn PDF document text
    • https://s3.amazonaws.com/wunupalezozerud/skripsi_akuntansi_perbankan_syariah.pdfIn PDF document text
    • https://dagovivebige.files.wordpress.com/2020/11/dragon_city_guide_heroic_race_high.pdfIn PDF document text
    • https://s3.amazonaws.com/kudowo/toyota_auris_2008_user_manual.pdfIn PDF document text
    • https://muregeboseri.files.wordpress.com/2020/11/31148695910.pdfIn PDF document text
    • https://s3.amazonaws.com/mukut/fodepojuwisipowadujezikek.pdfIn PDF document text
    • https://pukewakedal.files.wordpress.com/2020/11/46751659879.pdfIn PDF document text
    • https://s3.amazonaws.com/bulozor/soxatusi.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005d20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D20 4940 bytes
SHA-256: a536fdc6501fc329978007567b17a9a4fb1e744f3c4a4824d55a7efc96b67671
font_01_sfnt_off00006df3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DF3 10568 bytes
SHA-256: 2ab5a6545b20aba81f9532af9226d821db6db3a7a21cd725405f3d650241fedc
font_02_sfnt_off00009215.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9215 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176