Malicious PDF — malware analysis report

Static analysis result for SHA-256 27705a99e0b86151…

MALICIOUS

PDF

74.8 KB Created: 2021-04-30 22:07:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: da28ce1a4957de195e0f25ba3df04fd2 SHA-1: 9e915b8e4de424787bc1a4eba0fe4072ca790937 SHA-256: 27705a99e0b8615196779a102a035b8c9e0b8222a25a2ea85bb41edafca1232a
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 0.9997

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://jacksth.ru/strik?utm_term=how+do+you+start+a+charcoal+drawing PDF link annotation
    • http://kefets.xyz/jifopikukisivopuzobexarurbarjz.pdfIn PDF document text
    • http://marketitaly.info/kujawotolfea0r.pdfIn PDF document text
    • http://4bochki.ru/86702657928bes8t.pdfIn PDF document text
    • http://merokomazojewi.scienceontheweb.net/bourree_in_e_minor_guitar_tab.pdfIn PDF document text
    • http://vajujikelo.22web.org/77142831830.pdfIn PDF document text
    • http://kugaraginoja.mypressonline.com/dinedepow.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://musavojiresi.epizy.com/vokifodezutese.pdfIn PDF document text
    • http://guvekes.rf.gd/silent_auction_bid_cards_template.pdfIn PDF document text
    • http://vulikoviluxugu.rf.gd/39725136662.pdfIn PDF document text
    • http://zubikexef.rf.gd/66984573192.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28ada3d0-e762-4e03-9c9b-f34ff1a197a4/22261815984.pdfIn PDF document text
    • https://s3.amazonaws.com/fogibi/lutibapepijeved.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4a093c1-c11b-4717-9e91-8605fd292141/9603146319.pdfIn PDF document text
    • https://s3.amazonaws.com/bokelur/dubilopukebajevabodupul.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawe/68772832856.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/455f8a8f-215b-48a8-91c4-b669b7a61ec7/2005_dodge_ram_1500_vibration_problems.pdfIn PDF document text
    • http://vojotutere.epizy.com/zafipamos.pdfIn PDF document text
    • https://s3.amazonaws.com/polojuliragam/the_real_elephant_man_pics.pdfIn PDF document text
    • https://s3.amazonaws.com/fokapikow/where_to_get_a_covid_test_in_steamboat_springs_co.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80ab38bc-651b-4cd7-956f-965dc2817487/when_does_high_school_start_2018.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

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_off0000e907.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE907 5356 bytes
SHA-256: c408d19eac35ed0d9e5c61ba6883e90e2aaae9bb08d0c6cad6c60848f4883dc8
font_01_sfnt_off0000fb4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB4E 10128 bytes
SHA-256: 0c7c456ae17903105920bafb0db90a822b858e3bf565c4a4fd2908831816985e

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