Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0f7f51bf06f5f02…

MALICIOUS

PDF

80.5 KB Created: 2021-05-21 20:20:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: d44c64d615431a82de7aa89e7573eead SHA-1: 04a5f7e7155e2a6cdc685d2ebddecc398bbdbb11 SHA-256: b0f7f51bf06f5f02cc34cc404c93b7ea0c2c9f5eec8b3312a7f5d5176fdb4dd9
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. It contains a large number of external links, indicating a link farm designed to direct users to potentially malicious sites. One of the primary external links points to 'lozipotod.ru', which is suspicious. The document body, though heavily obfuscated, contains text related to 'constitutional carry' and application metadata, suggesting a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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=will+texas+get+constitutional+carry PDF link annotation
    • https://lukafitujukeme.weebly.com/uploads/1/3/3/9/133997152/tabepibegesode.pdfIn PDF document text
    • https://ganegekisawaji.weebly.com/uploads/1/3/1/4/131406809/f331341038.pdfIn PDF document text
    • https://favaruzikab.weebly.com/uploads/1/3/4/8/134871436/779108.pdfIn PDF document text
    • https://gifedoku.weebly.com/uploads/1/3/4/2/134234788/484ed8c89559.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/guvovigo/43731898207.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea319831-a5ea-4556-b17e-86a25b2bfec0/bruins_vs_blue_jackets_score_today.pdfIn PDF document text
    • https://s3.amazonaws.com/babetafaperaxov/bootstrap_admin_profile_template.pdfIn PDF document text
    • https://s3.amazonaws.com/gezetega/air_force_one_love_letter_resell.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1c6be53-53bf-42d7-a985-d356dda6a243/danivonepovewerul.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e88568e-a10f-4135-9c12-2449f3dd0e65/what_is_the_best_tv_antenna_at_walmart.pdfIn PDF document text
    • https://s3.amazonaws.com/pobixedele/lezebapenuzasegesozov.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0f56705-3f41-452a-b6e2-0434f6165234/probability_booklet_ks3.pdfIn PDF document text
    • https://s3.amazonaws.com/jimugivos/wegetafatavexidovadebemi.pdfIn PDF document text
    • https://s3.amazonaws.com/rawesaragegugar/48045645930.pdfIn PDF document text
    • https://s3.amazonaws.com/gumagabu/2066030343.pdfIn PDF document text
    • https://s3.amazonaws.com/xedewofuretujo/gavire.pdfIn PDF document text
    • https://s3.amazonaws.com/mexesazaxasa/salary_counter_offer_template.pdfIn PDF document text
    • https://s3.amazonaws.com/nisoxow/xemerasinexok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a9c2f50-466e-4d02-bd31-313ec30fa497/lajapupegidefib.pdfIn PDF document text
    • https://s3.amazonaws.com/wazorixekunafob/avision_av121_button_manager.pdfIn PDF document text
    • https://s3.amazonaws.com/ladiwuzetawedi/travel_budget_spreadsheet_template.pdfIn PDF document text
    • https://s3.amazonaws.com/votubukaxogilix/ashfield_junior_school_ofsted_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2bfabd2-6b3f-46c1-977c-cec1d5324779/how_to_get_haku_mask_shinobi_striker.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_off0000fde2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDE2 5152 bytes
SHA-256: 97f4fda3ca6a6750229c79b2a89f3e28378678d28dbb3b614e48a6b383be9201
font_01_sfnt_off00010f90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F90 10796 bytes
SHA-256: cfcd6f030b70fc104a4837d739ba3be1ed264a0f40cec876f69f174a0015bb90

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