Malicious PDF — malware analysis report

Static analysis result for SHA-256 720a9df9e0c3b78d…

MALICIOUS

PDF

81.7 KB Created: 2021-03-01 03:12:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 31ea25c2d588f8c6df290214d86d3b14 SHA-1: 12cc7c64bd7d7a734229a58a5427a9f59b141ebd SHA-256: 720a9df9e0c3b78dfad825f9f68be605786efd4ef1e093d56b873bc1e8c16820
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to host a phishing page or further malicious content. The document body, though heavily obfuscated, suggests a lure related to religious or personal topics, consistent with phishing tactics.

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=what+did+god+say+about+adultery PDF link annotation
    • https://cdn.sqhk.co/dopuzodopuvu/zhdlRpM/battle_angel_alita_anime_japanese.pdfIn PDF document text
    • http://vykupavto54.ru/326670283082ni7.pdfIn PDF document text
    • https://cdn.sqhk.co/wekaradukuve/aQS3nFB/zefun.pdfIn PDF document text
    • http://robinmani.site/654378317473c6k7.pdfIn PDF document text
    • http://apeech.ru/call_me_by_your_name_script_etsygo87c.pdfIn PDF document text
    • https://cdn.sqhk.co/mojekuvugise/hjrlyji/metal_slug_2020_mobile.pdfIn PDF document text
    • http://narelavupes.22web.org/26693566146.pdfIn PDF document text
    • http://lessonsonline.site/noticias_en_voz_pasivakvyn8.pdfIn PDF document text
    • http://domen3.club/nasoxuluxenaxoxixe81tgb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bazejufojowopor.epizy.com/97209765053.pdfIn PDF document text
    • http://pavemamixazose.rf.gd/is_there_live_satellite_view.pdfIn PDF document text
    • http://xonifovozub.epizy.com/62235854497.pdfIn PDF document text
    • https://s3.amazonaws.com/bifadiwuwileji/linkedin_cover_photo_size_2018_template.pdfIn PDF document text
    • https://s3.amazonaws.com/pazatuv/zumudagokewamajupevuxaze.pdfIn PDF document text
    • https://s3.amazonaws.com/zumomasugipeno/ultrasound_scan_report_during_pregnancy.pdfIn PDF document text
    • https://s3.amazonaws.com/fifomi/bepevikigewufipuvamafexoj.pdfIn PDF document text
    • https://s3.amazonaws.com/sojaxub/saliwigepojomaf.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_off000103d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103D4 5340 bytes
SHA-256: 734d6fac49ae99c2f9310aa0ab5e64c3b6cd37b314d31b23d7bd9600fa49434f
font_01_sfnt_off0001160b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1160B 10344 bytes
SHA-256: 3f583cc6f9e4fbfbdcec6bd66174b80b57632c814d38d5b8557d537ab016c54a