Malicious PDF — malware analysis report

Static analysis result for SHA-256 0024cf342f79017e…

MALICIOUS

PDF

88.1 KB Created: 2021-04-03 00:14:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 77f989530a4f5e2455f5c8fa27173dc0 SHA-1: 5199e7abff0793227340eb8a11e51dfebafc7432 SHA-256: 0024cf342f79017e682848923c9bfab2191010abc058d7d01c786d13ab7a055b
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

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 0.9998

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://fokemale.ru/strik?utm_term=how+to+refill+ink+cartridge+hp+950 PDF link annotation
    • http://cloudplay.xyz/kibojesegirofzjad.pdfIn PDF document text
    • https://japujavawewiri.weebly.com/uploads/1/3/2/6/132696154/24d7fc2dea88.pdfIn PDF document text
    • https://gewaxuselez.weebly.com/uploads/1/3/4/2/134265722/a15de6328e9.pdfIn PDF document text
    • http://rometolipopi.iblogger.org/taco_bell_nutrition_menu_carbs.pdfIn PDF document text
    • http://gijutudubesakuz.iblogger.org/kemawabetupogobizolor.pdfIn PDF document text
    • http://presente-top.store/lotinenidekguyuq.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kufobidup.epizy.com/84397317451.pdfIn PDF document text
    • http://waboxizolomove.rf.gd/agreement_of_sale_of_property_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c1273c40-e33c-40ca-a87c-67dd2e6cc151/10498897304.pdfIn PDF document text
    • https://s3.amazonaws.com/novifamigot/audiogram_examples.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6993d841-b7a6-417a-9f5d-0f4078a2ab76/shimano_ultegra_r8070_di2_hydro_disc_groupset.pdfIn PDF document text
    • https://edb7bb8d-792a-4213-93ec-7f573d37cc74.filesusr.com/ugd/bfd504_58f0a6c5e5a84384a93c33d205bb2dd9.pdf?index=trueIn PDF document text
    • https://3d7304b5-8527-495f-b913-615d6f357a43.filesusr.com/ugd/ef7486_61d5004dc95b4c1da523f98d282b4261.pdf?index=trueIn PDF document text
    • http://zuwitemozu.epizy.com/nonidijodipom.pdfIn PDF document text
    • https://s3.amazonaws.com/tobovunoberiki/3d_printer_filament_temperature_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/nunakixuma/xaxevifimanajalub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a73e1d91-bf77-4070-a0d8-d4efdf2edb75/does_a_500_word_essay_have_to_be_exactly_500_words.pdfIn PDF document text
    • https://e1dd9d5d-2564-403b-b9eb-750b563e155e.filesusr.com/ugd/00b056_95388bfdf60f47e4b02617f9930f9e16.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/widetunipet/sobikopagomapewasat.pdfIn PDF document text
    • https://9526c93a-d340-4dca-b5fd-2864ff0888c4.filesusr.com/ugd/4c3d6a_16e2d963016547d190d2f4a69c3c81fd.pdf?index=trueIn 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011899.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11899 5780 bytes
SHA-256: 1499904acd9a8694a019d17d078749f4c8dfa3a2d8ef5d08dc838715deb9ad98
font_01_sfnt_off00012c59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C59 11316 bytes
SHA-256: bf31f178a0dec106818f40220a9c77b8fa10417ec605a41310101e38201a3a91

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