Malicious PDF — malware analysis report

Static analysis result for SHA-256 64f47c020e2785e5…

MALICIOUS

PDF

80.1 KB Created: 2021-03-23 05:14:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7430cdfbb799b728063c05f50e543a6a SHA-1: 1bbffe7519a626d6c9c360cfec9171db8c85d502 SHA-256: 64f47c020e2785e5ae2a1d2ef52c2e313dc187808a7239c1c4962bea80e54c7d
196 Risk Score

Malware Insights

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

The PDF file contains numerous external links, characteristic of a link farm, with one prominent URL leading to a redirector. This redirector, disguised as a 'simply keto website' lure, points to a malicious domain. The presence of PDF_SEO_LINK_FARM and PDF_SEO_UTM_REDIRECTOR_LINK heuristics, along with the ML classifier and ClamAV detection, strongly indicates a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jumiwimov.ru/aws?utm_term=simply+keto+website PDF link annotation
    • https://s3.amazonaws.com/xeponodij/78951115392.pdfIn PDF document text
    • http://wepijafiguwenan.mywebcommunity.org/bewise_classes_notes_gk.pdfIn PDF document text
    • https://s3.amazonaws.com/zopenave/325047030.pdfIn PDF document text
    • http://wasatosu.sportsontheweb.net/mupolus.pdfIn PDF document text
    • https://s3.amazonaws.com/firudegix/57184188222.pdfIn PDF document text
    • http://ruwemipuwev.mypressonline.com/45963993775.pdfIn PDF document text
    • https://s3.amazonaws.com/tugafebip/sonic_nutrition_breakfast_burrito.pdfIn PDF document text
    • https://s3.amazonaws.com/gonafoziguwewe/einthusan_er_online.pdfIn PDF document text
    • https://s3.amazonaws.com/pusori/bank_customer_service_representative_resume_no_experience.pdfIn PDF document text
    • https://s3.amazonaws.com/mubefula/resident_evil_movie_in_tamil_hd.pdfIn PDF document text
    • http://gexomafe.mypressonline.com/4457863881.pdfIn PDF document text
    • https://s3.amazonaws.com/vatakefojunib/callus_formation_after_rib_fracture.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://nimanexobubibub.onlinewebshop.net/how_to_factory_restore_apple_time_capsule.pdfIn PDF document text
    • http://kisalonokexiwi.atwebpages.com/11443629054.pdfIn PDF document text
    • http://tenurusimuxu.epizy.com/automation_anywhere_user_manual.pdfIn PDF document text
    • https://bff5fdab-9fd0-4670-908b-a1308bb5a9cb.filesusr.com/ugd/227d0f_013575f686d541c7a1b9756e2fd24a48.pdf?index=trueIn PDF document text
    • http://lodakakurozakod.epizy.com/gisebarusetewumo.pdfIn PDF document text
    • https://696f1bd8-06c3-47a7-a8f7-e83e17ec8d18.filesusr.com/ugd/5ad03d_8718d77d07d44fe18da050ebd04417b2.pdf?index=trueIn PDF document text
    • http://jasunusemoki.onlinewebshop.net/vocabulary_test_with_answers_for_high_school.pdfIn PDF document text
    • https://bb55feb6-a0c4-48ae-8f72-aea2c45912f8.filesusr.com/ugd/b9801a_6b0175055175443b8a090afc7c9f9760.pdf?index=trueIn PDF document text
    • http://kenamumiv.rf.gd/farberware_pressure_cooker_guide.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://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED48 5160 bytes
SHA-256: 389fbcb86f6d23f58bec350b0994adf2779865b968e7556b71828a31190731c8
font_01_sfnt_off0000fed2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFED2 6068 bytes
SHA-256: d2d10b6b0c668cf26faa9347c7054f8580c7eefa5cb7aecda2a4fba74bd025f0
font_02_sfnt_off00010e83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E83 10768 bytes
SHA-256: 2eb4645e088dfe49d89b313d9c85438d0194868f7ed6639cec69d352e1b392be