Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbdc3050c8f3f533…

MALICIOUS

PDF

57.7 KB Created: 2020-11-27 06:51:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 0b7945d21612274faefb86dc7a1669b3 SHA-1: 10be1a2bf7a159b58f7c4d8dcca8c2d779fb004c SHA-256: fbdc3050c8f3f533b5db61f61c271cd18d4b89a29181195a719e8c9a79a6d49d
154 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 routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://cctraff.ru/strik?utm_term=djmax+portable+mp3+coverter In PDF document text
    • https://wipibafupegivu.weebly.com/uploads/1/3/4/8/134868488/bexoxaroxifal.pdfIn PDF document text
    • https://mepuralomelefaz.weebly.com/uploads/1/3/4/4/134494325/8d81b1c.pdfIn PDF document text
    • https://gokopawe.weebly.com/uploads/1/3/4/4/134493337/b94e1a.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/kadijamiruvinugeno.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/16545625-87b5-446e-8539-b08e14f43ec5/34032248430.pdfIn PDF document text
    • https://s3.amazonaws.com/fodose/54579654164.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a867491-babf-48af-bb52-c2541ed2e4f1/jixiwasidadaliji.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f86fee8-58f4-40ec-9173-29108917b6a5/lfx25973st_user_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/ravuxudibure/zoduzabopugegep.pdfIn PDF document text
    • https://s3.amazonaws.com/salade/kelly_o_connor_md.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/948ff2f8-44e3-4b94-ab4e-d086a107bb8c/tangled_full_movie_in_english_free_d.pdfIn PDF document text
    • https://s3.amazonaws.com/divexikav/starcraft_brood_war_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/fibesezati/60844900096.pdfIn PDF document text
    • https://s3.amazonaws.com/piwanisaj/rescind_job_offer_letter_sample.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7665ea05-fc33-431d-811b-58f170c24e3d/cty_cp_thc_phm_thy_sn_an_pht.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0d3dcbd-77cb-4d12-b500-d695086cc0d0/figefofubozovovemosudilov.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_off0000a9b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA9B8 5408 bytes
SHA-256: c5d71a944938f542c5ba7ef30b32ed281e35b2a0f9ffad57938d940efae44ef6
font_01_sfnt_off0000bc14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC14 8804 bytes
SHA-256: 04a9ec531099e2a52c1ea1a31405e8dd07d06a9c290085bfec3427eff1f7f909

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