Malicious PDF — malware analysis report

Static analysis result for SHA-256 eae7edbb2216a5d7…

MALICIOUS

PDF

80.0 KB Created: 2021-04-23 20:45:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 90868e935bd61c3311451508013de6df SHA-1: c1637a5d914eadda09f0c880eaf246dbeaec61c7 SHA-256: eae7edbb2216a5d70724c08b4ba1c20a41c8dc082728835a1a1f3bbc4fc99d3c
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://golowaki.ru/strik?utm_term=premiere+pro+free+audio+presets PDF link annotation
    • http://beamorem.com/soxakazirixozubbrnc4.pdfIn PDF document text
    • https://cdn.sqhk.co/zimajigon/eQbqMji/good_morning_images_with_quotes.pdfIn PDF document text
    • http://golifidisonopat.iblogger.org/accessory_to_war_audiobook.pdfIn PDF document text
    • https://cdn.sqhk.co/dutudovajud/nicgjgj/infectious_disease_doctor_dallas_texas.pdfIn PDF document text
    • http://xteenware.online/saditelazutigimuza75r.pdfIn PDF document text
    • http://lerasusakibura.22web.org/ramojeturakime.pdfIn PDF document text
    • http://legko.travel/do_not_touch_baby_car_seat_tag27qoj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/zukogi/oropharyngeal_airway_size_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/811cdd3f-c731-4f10-a2cf-f0055c5a05d7/54162693933.pdfIn PDF document text
    • http://botuwosolu.rf.gd/65656191906.pdfIn PDF document text
    • https://s3.amazonaws.com/xezonijida/26479142655.pdfIn PDF document text
    • http://zoridod.epizy.com/canzoniere_petrarca.pdfIn PDF document text
    • http://lobakixadob.epizy.com/fimegego.pdfIn PDF document text
    • https://s3.amazonaws.com/kodipopujufipig/20103596492.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0862b90-b54e-4e00-9d2d-7de9da9b6b43/mupifasetimemeri.pdfIn PDF document text
    • https://s3.amazonaws.com/xarojapi/uncle_bob_books.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8cd01c7-1a2f-47ce-9b54-30f02985ea6c/how_to_open_vicks_warm_mist_humidifier.pdfIn PDF document text
    • https://s3.amazonaws.com/savukojubusum/95410869046.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c1155422-c295-4979-9ca2-3ec2802b3032/72309571535.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a92795d5-3cdf-414e-9de4-b695f1903abc/64631247362.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF45 4932 bytes
SHA-256: 25fe590f90acd1591d1331ed104983e05c83b55c08184d40cf87a01f25831795
font_01_sfnt_off00010001.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10001 10764 bytes
SHA-256: 7136ab3b4e4f819fb0e1980f0849953ac03c017883058bafd3ecbda1223b9019
font_02_sfnt_off000124af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124AF 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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