Malicious PDF — malware analysis report

Static analysis result for SHA-256 329eeeb961bfd3e4…

MALICIOUS

PDF

76.0 KB Created: 2021-03-27 16:41:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 1e3ef55d9bb97274332a329845a7b0de SHA-1: 8e3855b6bc29f88c97cc522d9134452836dbce98 SHA-256: 329eeeb961bfd3e4b5e751af4473b41057355df89c76fd749b82c51a968cd7d0
126 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including ML and ClamAV, indicating malicious content. The document body, though heavily obfuscated, suggests a lure related to tarot guides. Numerous external URLs were extracted, many hosted on disposable domains, pointing towards a phishing or malware distribution scheme. The presence of PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, indicating a link farm designed for SEO manipulation or traffic redirection to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://soxebez.ru/123?utm_term=justice+card+tarot+guide PDF link annotation
    • http://help-feedback-amzn6.xyz/23841565705xtznn.pdfIn PDF document text
    • https://pijawofixogut.weebly.com/uploads/1/3/4/0/134017865/643849d5.pdfIn PDF document text
    • http://vejuwetuk.mypressonline.com/21363632899.pdfIn PDF document text
    • http://jiwimejikigigu.mywebcommunity.org/displacement_based_seismic_design_of_structures_priestley.pdfIn PDF document text
    • http://fakaripeti.xyz/jagil7fz8c.pdfIn PDF document text
    • http://petersikdar.com/16916832352sufsa.pdfIn PDF document text
    • https://mimibixerogogo.weebly.com/uploads/1/3/4/7/134742821/kimub_jakupezu_ravopa.pdfIn PDF document text
    • https://xezatitewifesel.weebly.com/uploads/1/3/4/3/134393938/ronibu.pdfIn PDF document text
    • http://lovupijuti.getenjoyment.net/fewuluvifezibegur.pdfIn PDF document text
    • http://wijetaz.mypressonline.com/nadiz.pdfIn PDF document text
    • http://tatemegedes.sportsontheweb.net/39253262025.pdfIn PDF document text
    • https://sunarikibuniteg.weebly.com/uploads/1/3/1/3/131381519/9311457.pdfIn PDF document text
    • https://nusutaligufobam.weebly.com/uploads/1/3/5/3/135393176/2711219.pdfIn PDF document text
    • http://siwupezomejen.getenjoyment.net/clasificacion_de_la_administracion_publica_en_mexico.pdfIn PDF document text
    • http://kaxavetaxudu.mywebcommunity.org/vojotuxif.pdfIn PDF document text
    • http://idealica-ituficiale.website/addition_worksheets_for_grade_3_cbsedxaro.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/56878b36-d839-4461-bfcd-c26bdda52fc9/jumitureginuju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/365c69d0-e5a9-48ba-9565-568f9eee2019/how_do_i_reset_the_filter_light_on_my_honeywell_air_purifier.pdfIn PDF document text
    • https://s3.amazonaws.com/vokeri/34762677041.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19968294-0904-4ca9-bb54-4c08ed361db1/55803399641.pdfIn PDF document text
    • https://s3.amazonaws.com/bezorito/46953041662.pdfIn PDF document text
    • https://s3.amazonaws.com/zarevizebi/que_es_educacion_civica_concepto.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2dfce8f-ad07-43cf-af54-f657b70e76aa/17191592210.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db4b0b4c-25eb-44ac-b991-da08b54ce2f9/rasterlink_6_download.pdfIn PDF document text
    • https://s3.amazonaws.com/fidefofudi/autonomic_nervous_system_quiz.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_off0000ed43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED43 5064 bytes
SHA-256: 480ffd23e7b44c3a36f2f8d090b0e54398a5c8d18b61c44ad4d540365eaf051c
font_01_sfnt_off0000fe86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE86 10592 bytes
SHA-256: 06ff84300e6591eaf4434131c5ea56abc54f93450f0285a5f6d0a1c1be001ecb