Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e36b3da887472db…

MALICIOUS

PDF

98.5 KB Created: 2021-01-21 00:16:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-19
MD5: 7b2bf6f4cb424d0f667bd30e191a7fbc SHA-1: b2faedcb16ca324ba72b2d80d5cb09802248d1d9 SHA-256: 4e36b3da887472dbee15d2c5a043ec6827fb73e01090d21058c073051cffbe79
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://druttle.ru/wb?keyword=electronic%20component%20pinout%20pro%20apk PDF link annotation
    • http://vobonenagixavus.66ghz.com/affinity_photo_1._5_windows.pdfIn PDF document text
    • https://rujupiben.weebly.com/uploads/1/3/4/8/134852491/navuduvin_muzokitu.pdfIn PDF document text
    • https://dukazegisow.weebly.com/uploads/1/3/0/7/130740117/6054089.pdfIn PDF document text
    • https://janaravepok.weebly.com/uploads/1/3/4/8/134886337/tuwokagixuse-sipafopuzego.pdfIn PDF document text
    • https://tewedarutomos.weebly.com/uploads/1/3/2/3/132302993/felisakugojepode.pdfIn PDF document text
    • https://rutebesutev.weebly.com/uploads/1/3/4/1/134131531/845378.pdfIn PDF document text
    • https://fipamowusaki.weebly.com/uploads/1/3/4/8/134879766/99325785bc74ccb.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/boxalewijim/utorrent_android_change_location.pdfIn PDF document text
    • https://s3.amazonaws.com/dovulavavo/65569024039.pdfIn PDF document text
    • https://s3.amazonaws.com/polexebuj/believer_tamil_lyrics_video.pdfIn PDF document text
    • https://s3.amazonaws.com/wegemebufojafak/auto_page_break_in_jspdf.pdfIn PDF document text
    • http://nemebikox.epizy.com/petofirabijefir.pdfIn PDF document text
    • https://s3.amazonaws.com/dagasopones/building_construction_process_step_by_step.pdfIn PDF document text
    • https://s3.amazonaws.com/xifabilejilab/bicep_tendon_tear_exercises.pdfIn PDF document text
    • https://s3.amazonaws.com/nedijowewoded/dragon_nest_sea_mobile_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/tumasun/77201855719.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001135d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1135D 3012 bytes
SHA-256: a399fe96af801c2052f662cdbde4f42b4a683414ee7bc8e1620d29cb9b520efd
font_01_sfnt_off00011e24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E24 4804 bytes
SHA-256: 6eba62ea7229b07ebed8fabc3d136eb572404f1343ae30918a2528b6470370ee
font_02_sfnt_off00012e56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E56 12740 bytes
SHA-256: 9d7d9495f8a944c6e9f374891878e514d9e52995c967496eb251a68a3e4359d8
font_03_sfnt_off00015887.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15887 16092 bytes
SHA-256: 9af6fc3bf9d751f70540aea0fa47faa159a3604992cda23d2adcda3ffc5346b2
font_04_sfnt_off00016d4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16D4E 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378