Malicious PDF — malware analysis report

Static analysis result for SHA-256 b67e17383cff691e…

MALICIOUS

PDF

73.2 KB Created: 2021-04-11 06:24:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 1b51905afc8c7806056d8255a788e1f7 SHA-1: 5985253df2aa113e6be3df28dd5fbcb5e9974dbb SHA-256: b67e17383cff691e0b40c15f5d9fc20485f18dbbad27596ac87c8b943f8d803f
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

Heuristics 5

  • 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.
  • 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://lozipotod.ru/strik?utm_term=counting+stars+nujabes+piano+sheet+music PDF link annotation
    • http://mx50off.pro/why_do_companies_capitalize_interest4dpp3.pdfIn PDF document text
    • http://ourfutures.space/daxugisosesacova7.pdfIn PDF document text
    • http://bamimutekinawaz.22web.org/shoe_size_guide_uk_us_eu.pdfIn PDF document text
    • https://newusopuwizan.weebly.com/uploads/1/3/4/7/134713970/9653902.pdfIn PDF document text
    • http://reabook.online/idaho_secretary_of_state_annual_report_formhzplh.pdfIn PDF document text
    • http://maslovauto.ru/32427812884r60pe.pdfIn PDF document text
    • https://ninisezidopif.weebly.com/uploads/1/3/5/3/135391617/juvelobazo-zatosomomulebe-rusarirideturu-fiwebefawid.pdfIn PDF document text
    • http://mon-cmbretagne.com/power_electronics_arunkumar_notes8goel.pdfIn PDF document text
    • http://dalojel.22web.org/serejekarugabatojoxan.pdfIn PDF document text
    • https://dagepafu.weebly.com/uploads/1/3/2/7/132740813/7313840.pdfIn PDF document text
    • https://kaposabebozof.weebly.com/uploads/1/3/4/4/134466843/4177263.pdfIn PDF document text
    • http://pemegira.22web.org/dodapalamajixewibe.pdfIn PDF document text
    • https://dipidedi.weebly.com/uploads/1/3/2/8/132815933/5527d3aa2bc.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/topipovikapari/duels_of_the_planeswalkers_2012_deck_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwamoxamo/jifepaj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6adbf72a-37b2-4048-9b16-4da8cc0c2e58/victory_octane_service_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/kosipefojaw/gujojowibinowonaximer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb25b1e1-2689-47b2-87f6-f94dce2a3838/x-ray_circuit_and_tube_heat_management.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eba413fb-5593-4596-9cc4-fb0a0b960961/jebalapojalatovenuf.pdfIn PDF document text
    • https://s3.amazonaws.com/bitizopovopaso/zaxeniju.pdfIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/houghton_mifflin_6th_grade_math_answer_key.pdfIn PDF document text
    • http://nepupiborama.rf.gd/rudram_chamakam_in_tamil.pdfIn PDF document text
    • https://s3.amazonaws.com/laginekux/italo_calvino_quotes.pdfIn PDF document text
    • https://s3.amazonaws.com/figugipopar/transitions_legal_birmingham.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a759ca99-11a0-472f-b3f7-45c72df85e98/zarozujitunajun.pdfIn PDF document text
    • https://s3.amazonaws.com/putelekireza/vonuguginuguferumam.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabom/3651760562.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f8fd8cf-3b08-4d64-a8b2-80c85a147b2f/1400_calorie_vegan_meal_plan_for_weight_loss.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_off0000dea3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEA3 5436 bytes
SHA-256: dddd214fa67e0cd37bc11a492a32e1fd9abaaa28394f0d577e22c4f144d1e957
font_01_sfnt_off0000f0f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0F9 11148 bytes
SHA-256: bc6b5df160d6b5e56977bce8e3e275d02d1a534bee3c86021e49c6f9e0db399b

Open this report in the interactive analyzer, or submit your own file for analysis.