Malicious PDF — malware analysis report

Static analysis result for SHA-256 836e00d7782ba530…

MALICIOUS

PDF

84.4 KB Created: 2021-03-06 05:40:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: eee0cb32f9ece5af3d04a9b996a1939a SHA-1: 2c81813fd7429ae70218894c59d551adfce63711 SHA-256: 836e00d7782ba5303e4abf93758282c53387f0f86e6202d6ddfb26d4b6b7aab1
76 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded link disguised as information about communication styles, which is a common lure for phishing or malware distribution. The ML classifier strongly indicated maliciousness, and the presence of a redirector URL further supports this. No scripts were extracted, but the PDF structure and embedded URI heuristic point to a malicious intent to redirect the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://botokaw.ru/123?utm_term=tipos+de+comunicaci%25C3%25B3n+asertiva PDF link annotation
    • http://demask.space/how_to_mentor_coach_and_build_teams_that_workdktjh.pdfIn PDF document text
    • http://axacheat4.xyz/como_es_el_pase_elite_de_noviembre_2020z05y1.pdfIn PDF document text
    • http://xagowawusik.66ghz.com/82187032167.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388272/normal_60068d1b40561.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451929/normal_5fdd9d06e3ea1.pdfIn PDF document text
    • http://weareanonymous.org/botubopa8rdjx.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410013/normal_602ca1e9eeefb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410432/normal_603d523f45528.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/mozedijiz/felunabenegigikabovajire.pdfIn PDF document text
    • http://pagitewuzowika.epizy.com/beauty_and_the_beast_piano_music_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/fedojigudaj/what_do_you_mean_by_business_analytics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87de4614-7c6c-49d4-91ae-65690b661cd8/10086119330.pdfIn PDF document text
    • http://xojifelogumexe.rf.gd/14983059324.pdfIn PDF document text
    • https://s3.amazonaws.com/gorajikunobixi/gisozopavedas.pdfIn PDF document text
    • https://s3.amazonaws.com/legipalofi/ugly_sweater_voting_ballot_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jotogorurekuro/wilitovotexivo.pdfIn PDF document text
    • https://s3.amazonaws.com/rixevozajixezos/6300822986.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d59ff8e8-29d4-4b69-a6dc-14c921882f44/pumapigexodonadasivemaw.pdfIn PDF document text
    • https://s3.amazonaws.com/saxefi/mozat.pdfIn PDF document text
    • https://s3.amazonaws.com/novifamigot/common_core_math_worksheets_8th_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/faxaxos/6419428028.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9106aca5-cf6c-4503-beb2-5a94b1286b46/nuwoveradoxunivanuki.pdfIn PDF document text
    • https://s3.amazonaws.com/pevarijidasalop/vunugavilupufedatajibebul.pdfIn PDF document text
    • http://nozimazanu.epizy.com/71782600385.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/244a1a6d-dcce-4e7c-9d8e-f7f249e56765/everstart_750a_jump_starter_instructions.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_off000108e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108E1 5332 bytes
SHA-256: 7e4f445a9c7b6bb9fb66fff8ff2791538fd76fc2e01c824904d1c7b0f6389052
font_01_sfnt_off00011aac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11AAC 12056 bytes
SHA-256: bb966ee81869d52de7bd62895226d50dcf3ba46daf2605156b02619a1bfae0af