Malicious PDF — malware analysis report

Static analysis result for SHA-256 27cbded957ba735a…

MALICIOUS

PDF

82.7 KB Created: 2021-05-13 17:17:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: e8104c4e57be8e3404605cba3a2e92f4 SHA-1: 11446156552bf47967653ee9f448f3bf40139b77 SHA-256: 27cbded957ba735a2c6620e0278ece161c875443c7e124a872797af0b75d55f1
96 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 external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://golowaki.ru/strik?utm_term=easy+baby+food+recipes+for+9+month+old PDF link annotation
    • http://fogazino.iblogger.org/674376812.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408866/normal_605412029cb67.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470231/normal_602ab91e9e657.pdfIn PDF document text
    • http://xejapuz.getenjoyment.net/sapimijenenemof.pdfIn PDF document text
    • http://dodemul.mygamesonline.org/how_does_reactive_oxygen_species_damage_dna.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484821/normal_606e14cdad907.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453902/normal_60275b0762e12.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/kotidox/doxojanubidon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95451a0d-ae1b-41f1-8b8f-a014476a2d9d/borderlands_2_game_of_the_year_edition_strategy_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/xaliwalufoguni/nigifug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed567af1-65c2-4a61-a44b-267e2cf236c5/zuvemura.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d75cba17-6953-4111-99cf-33dd3517a6ad/what_does_sum_it_up_mean_on_pick_3.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f11e64b-b676-4cfd-8c57-39a10713178d/ego_lawn_mower_memorial_day_sale.pdfIn PDF document text
    • https://s3.amazonaws.com/posaxugidut/51476927786.pdfIn PDF document text
    • https://48bf584d-d56c-45cf-b4f3-c1c05dce5274.filesusr.com/ugd/3f4b99_970ceffac4184b5ca080fab0ad4b3d99.pdf?index=trueIn PDF document text
    • http://ravexigulot.rf.gd/dirimir.pdfIn PDF document text
    • https://s3.amazonaws.com/nazekisigiduz/72638946618.pdfIn PDF document text
    • https://6e229dea-1f83-4be8-8cd3-388eabd4f5e3.filesusr.com/ugd/1cfe37_80b72bf4841b43adaf9b3cf03d025819.pdf?index=trueIn PDF document text
    • http://vamanufa.rf.gd/19547029750.pdfIn PDF document text
    • http://sobenikirija.rf.gd/finazikugedojirek.pdfIn PDF document text
    • https://1261df91-4e32-40b2-8b8a-4050d3c54cbb.filesusr.com/ugd/df69c1_93dfaf6e0d594c599d9be76f7323f9f8.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tobaziw/jibeveguguxawo.pdfIn PDF document text
    • http://wajalapivibobi.epizy.com/apostila_de_administrao_estratgica_em.pdfIn PDF document text
    • https://c3f0ce02-b953-40d9-b94a-e38a054f9a35.filesusr.com/ugd/7afb62_5508e8d90c584d4680a876cb831ebcd7.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_off00010209.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10209 5748 bytes
SHA-256: c9f1047707fcfd93a8d60415361bff9b803649a47be448ea63bc8763ee7ca293
font_01_sfnt_off00011576.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11576 11900 bytes
SHA-256: 6909a981e0c24dfbdc64876354fd59804c26e0985375a01f0c3e6e1b9abc4c3f

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