Malicious PDF — malware analysis report

Static analysis result for SHA-256 34e086bb1bc00dbf…

MALICIOUS

PDF

81.2 KB Created: 2021-04-01 03:22:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a3e87d0562ded353ce6b5d1b3901a902 SHA-1: 133e8903a57f239fdb7bb6074f2c8b1e557cd556 SHA-256: 34e086bb1bc00dbfb23ddb25976ebd29e9459664225877c94ee699d83b295008
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://druttle.ru/strik?utm_term=cfd+analysis+in+ansys+workbench+tutorial+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4372972/normal_605b9f184a03b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467036/normal_5ff81f8592276.pdfIn PDF document text
    • http://gosofimasuwemig.iblogger.org/7521376422.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375702/normal_5fd28d242cc1e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462714/normal_60598116c0586.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382408/normal_5fd2264a6fbd8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494417/normal_5fe0d214ca33a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374360/normal_5ff62a8e55177.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368224/normal_5fdea035142f1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367912/normal_6050e155c6fbf.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/muvojugejoxip/28594430489.pdfIn PDF document text
    • https://s3.amazonaws.com/zategafozasiru/molagimumejepamapifogogo.pdfIn PDF document text
    • http://razafif.epizy.com/baralimezurilesuteton.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/899d5b44-f31b-4c6a-8b76-c52e6ed05c2e/15652795379.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ac03596-ca29-43f7-91d6-727ac908f75b/ear_thermometer_reading_too_high.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/91266041082.pdfIn PDF document text
    • https://s3.amazonaws.com/xomepixo/99376524872.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74c652b3-dfc1-4929-91dd-d3867dd9df02/system_of_linear_inequalities_word_problems_with_solution.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/is_garmin_obsolete.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0aaf85e-3054-4b92-a231-55af3e01710e/navy_counseling_chit_for_being_late.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_off0000fe26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE26 5548 bytes
SHA-256: 89b99fb537a4c4fa7661a23a4cb60c27a4612a4c650c9cbac8f0297a4ce7284b
font_01_sfnt_off0001110f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1110F 10800 bytes
SHA-256: c3dc0da044427984ea78c11225bc5b65e8ea6cc7bf5b76511c7ca73e3049be90