Malicious PDF — malware analysis report

Static analysis result for SHA-256 94cf89741c2774c0…

MALICIOUS

PDF

77.4 KB Created: 2021-03-17 09:59:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: bf299f1047d9fb3a4e7290d3a810ae1e SHA-1: 97753615502a7c7270c2f115fcea6aa591ce0e21 SHA-256: 94cf89741c2774c0850bb2c4b6aaf483989b3621078e560ae8bda2340cbd9829
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-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://fokemale.ru/strik?utm_term=seidel%2527s+guide+to+physical+examination+8th+ed PDF link annotation
    • http://film123watch.com/fadumizuxazufedazigao69jt.pdfIn PDF document text
    • http://fionainthefield.org/254105354093b4p4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376878/normal_602301da2c5ec.pdfIn PDF document text
    • http://iminn.ru/how_to_treat_language_processing_disordersn230f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454543/normal_601a402b77976.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413458/normal_604f31d13249d.pdfIn PDF document text
    • http://frankiearvelo.com/rufus_wainwright_hallelujah_piano_sheet_music9ih8u.pdfIn PDF document text
    • http://faketikus.22web.org/disomuta.pdfIn PDF document text
    • http://7lessons.space/kirby_sentria_reviews2zk7a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500887/normal_601846d3b2026.pdfIn PDF document text
    • http://lazadacostumercenter.com/libro_usar_el_cerebro_gratiss4q5s.pdfIn PDF document text
    • http://help-business-media.com/398068483682u9zg.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/dofufiri/solasewuzovezubikebov.pdfIn PDF document text
    • https://s3.amazonaws.com/gezejoputiwinu/20966104387.pdfIn PDF document text
    • https://s3.amazonaws.com/fevobelijogal/taco_bell_double_chalupa_box_carbs.pdfIn PDF document text
    • https://s3.amazonaws.com/muvarelo/19424446762.pdfIn PDF document text
    • https://s3.amazonaws.com/vogubivajavofu/90365998608.pdfIn PDF document text
    • https://s3.amazonaws.com/fumiposamisur/48195640810.pdfIn PDF document text
    • http://gunololidomip.rf.gd/cryptic_story_the_star_spangled_banner_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/vuzotisenixava/5717199204.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_off0000ec4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC4D 5892 bytes
SHA-256: 6266f0e081f97df725bd534de72653b8bc6f4ceb1c5c1f64cf1f85de0224695e
font_01_sfnt_off0001004e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1004E 11900 bytes
SHA-256: b27b9743ace7e492b86af5a0c1e26fa31b6f90bef84d79f7b831b57af0c30f1a

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