Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4308c22f696aa2b…

MALICIOUS

PDF

72.4 KB Created: 2021-03-15 21:59:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: bd4d0f6f1624201eddc0b3d9b9ef8e11 SHA-1: 588b1f216d761f4898ae2a8961bb117c56ab413c SHA-256: a4308c22f696aa2ba0cf7ad544192dbccca1bfcb4675b832dcfcefd92ad02d6b
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://maypoin.ru/aws?utm_term=maxi+cosi+pria+85+max+instructions PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4482625/normal_604d2e323e97e.pdfIn PDF document text
    • https://cdn.sqhk.co/fusevatuboxa/hhi9jde/810440765.pdfIn PDF document text
    • https://cdn.sqhk.co/rorajakura/dZZOSia/jovoxajanemujola.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501037/normal_5ffbdf5d9ff20.pdfIn PDF document text
    • https://cdn.sqhk.co/jadizefon/jbaeAFr/80227355702.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://73a1781f-5c9f-4c76-8a11-a8e8c44f336a.filesusr.com/ugd/d9f7b5_25f7b449acb348e7a01e2d173e3a86cb.pdf?index=trueIn PDF document text
    • https://9d3edb37-11ce-4d87-b861-4f8d850d55a0.filesusr.com/ugd/0d2aa0_25573c07a1b140f98d6b9069a3b09014.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/cbae0297-b682-4ec4-b228-5a7ebefc0afc/samsung_55_inch_uhd_smart_tv_-_ua55nu7100kxzn_-_series_7_weight.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ceef366b-cd9e-4c42-a297-5f5e27bb7226/39288512603.pdfIn PDF document text
    • https://s3.amazonaws.com/tetofamuxulil/bufiwonajoxasexemodax.pdfIn PDF document text
    • https://s3.amazonaws.com/vavale/54921940382.pdfIn PDF document text
    • https://78ff948a-0765-49f5-a22c-0fbe0eba7848.filesusr.com/ugd/888d0b_070bf470a7be41b7bed5958deff9ee84.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/viwoxuz/my_friend_dahmer_film_online_subtitrat.pdfIn PDF document text
    • https://19972ee8-34f0-4900-8009-9f590161cd02.filesusr.com/ugd/64db51_955c04ac1ea24fa19cd3fd26f1562c22.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/005d9777-8422-498e-a054-b77ff35e9218/romeo_y_julieta_reserva_real_magnum.pdfIn PDF document text
    • https://153f2bed-3501-4ec5-9468-ed1987511f6d.filesusr.com/ugd/f67134_54c849cacb684a2cb616616180360040.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e860e1c-9899-4bfe-a01a-ee5e74d510ba/25067633383.pdfIn PDF document text
    • https://s3.amazonaws.com/mexijegedakol/61849509085.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_off0000dbaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBAA 5436 bytes
SHA-256: 3e81fd65c1f9c41a7bec16a8f7ef03f17193a053f25c066266ae8b3b02492207
font_01_sfnt_off0000ee2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE2A 11256 bytes
SHA-256: e65fccd046b9f60e8b152f25f3400cea08e41283efd403bbbee4f038d783cb39

Open this report in the interactive analyzer, or submit your own file for analysis.