Malicious PDF — malware analysis report

Static analysis result for SHA-256 8970984b4b057e59…

MALICIOUS

PDF

71.8 KB Created: 2021-02-20 20:37:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: e7ca52801846bf4e7f5c34a298e6b13b SHA-1: 1672818b320c7d292868b5187723b894fb4af51f SHA-256: 8970984b4b057e595b7289f37c3ebd62851e0ccd9fddddf44bef548f8f487c5d
96 Risk Score

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-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://jottigo.ru/wix?keyword=arizona+driver%2527s+handbook+pdf PDF link annotation
    • http://naturagrush.space/microstation_2d_tutorialw3gok.pdfIn PDF document text
    • http://ibkreactiva2020.com/tawiretedewevozorewirowebjaxcw.pdfIn PDF document text
    • https://cdn.sqhk.co/zarejesorufo/Gicibie/drywall_mudding_cost_per_square_foot.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489732/normal_602b829bc62b6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404116/normal_6023d8ffdc083.pdfIn PDF document text
    • http://contact-git.top/99790668832svb74.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382407/normal_5ff79bcf3075f.pdfIn PDF document text
    • http://womenita.fun/spark_plug_condition_guide4jtgh.pdfIn PDF document text
    • http://cabinetshq.xyz/city_of_bones_book_series_reviewx73t4.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/dusubonifu/bac_guide_service.pdfIn PDF document text
    • https://s3.amazonaws.com/foneniz/civil_service_pension_retirement_application_form.pdfIn PDF document text
    • https://s3.amazonaws.com/sojaxub/51051054788.pdfIn PDF document text
    • https://s3.amazonaws.com/loranoduzuja/84914179849.pdfIn PDF document text
    • https://s3.amazonaws.com/xutomoxu/worawogujorufapogesodib.pdfIn PDF document text
    • https://s3.amazonaws.com/lekezaru/song_chamma_chamma_320kbps.pdfIn PDF document text
    • https://s3.amazonaws.com/rabewiruzitewa/drawing_conclusions_multiple_choice_worksheets.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_off0000dbe5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBE5 5436 bytes
SHA-256: 7f4ca29440194af65d82d09edc62acc38da2ccdeec254f4d689c246cbd5903ef
font_01_sfnt_off0000ee6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE6D 10380 bytes
SHA-256: bc954ddac7f5188fe6b9315051238f09dcdf705113a59261a28955e5e92af671