Malicious PDF — malware analysis report

Static analysis result for SHA-256 adf80831af2071d3…

MALICIOUS

PDF

81.5 KB Created: 2021-04-16 19:53:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 306b2f4124278111c297dd782c8147c9 SHA-1: d67419c3dfa5adc2a95e97428a7c12a38d4e580b SHA-256: adf80831af2071d3a9b6ecd8853ac2a69f9d5bc0128c9a48da9a8721ff7e4752
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 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/strik?utm_term=what+exercises+increase+arm+strength PDF link annotation
    • http://biotringel.shop/sejirurezj129k.pdfIn PDF document text
    • http://axecheat7.xyz/youtube_herbie_hancock_maiden_voyage_full_albuml681y.pdfIn PDF document text
    • http://straponartist.com/pharmacy_iv_calculations_practicephsge.pdfIn PDF document text
    • http://businessoutsourcing.info/renaissance_periodization_free62ewr.pdfIn PDF document text
    • http://beremoter.online/55762875402ymr2k.pdfIn PDF document text
    • http://1green.space/bivusufaloxuvacujv.pdfIn PDF document text
    • http://grantmedica.ru/69251468561iwjrp.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/f32d8377-becf-4987-906a-1282c1d22737/salenebe.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/ansible_template_owner_group.pdfIn PDF document text
    • https://s3.amazonaws.com/bokelur/equifax_125_claim_form.pdfIn PDF document text
    • http://kodugexibitomo.rf.gd/what_are_the_3_types_of_claims_in_persuasive_speech.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fe3e61e5-7800-4198-af45-086ceb77cfee/9248157709.pdfIn PDF document text
    • http://lorenivi.rf.gd/are_genie_remotes_compatible_with_craftsman.pdfIn PDF document text
    • http://vusanaxipunuli.rf.gd/cambio_climatico_en_mexico_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxirefare/rimowuterukigevixowuj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/16296d99-027f-45f2-a563-8b330d11dc7e/63790988334.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwuxot/british_admiralty_charts.pdfIn PDF document text
    • https://s3.amazonaws.com/vovopafubipu/62438018068.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_off0001024e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1024E 5264 bytes
SHA-256: 40e037d65b72d6177f99b3d6fb29060d51444abeb066fbda5682d13b9d33782a
font_01_sfnt_off0001141d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1141D 10736 bytes
SHA-256: f41cfdb22d14ef066cb9bd5d0f9f5577c2f711c75ddc477ecdc85409f1a1314e

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