Malicious PDF — malware analysis report

Static analysis result for SHA-256 d976f0965565ffe1…

MALICIOUS

PDF

80.2 KB Created: 2021-03-12 13:13:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 814add4124605c476631561411ba0305 SHA-1: 171653f5b79fa702b7643ebf5520712e28a8b835 SHA-256: d976f0965565ffe119be6f9a00342d9054f4343406e1489d049348e11564e568
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that points to a suspicious domain, likely intended to host a phishing page or download further malware. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The document body, though heavily obfuscated, appears to be a lure related to 'sustainable tourism development' to entice users to click the malicious link.

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
  • 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://mezovuduw.ru/award?keyword=definition+of+sustainable+tourism+development+pdf
    • https://cdn-cms.f-static.net/uploads/4370530/normal_6036ca22f3adf.pdf
    • https://cdn-cms.f-static.net/uploads/4468540/normal_600a4e712df1e.pdf
    • https://static.s123-cdn-static.com/uploads/4529893/normal_5ff2320567f12.pdf
    • http://ritixabig.iblogger.org/52441985081.pdf
    • http://xubixaxar.22web.org/88863344609.pdf
    • http://tryraisins.pro/97889278224nrv3j.pdf
    • http://buboxekavugi.iblogger.org/pidixu.pdf
    • http://gemapijipepegi.22web.org/free_halloween_math_worksheets_for_kindergarten.pdf
    • https://static.s123-cdn-static.com/uploads/4417213/normal_6006f24212889.pdf
    • http://you-bestshop.xyz/safivarajemupuwozaxelel6w2et.pdf
    • http://bakimebisuxoj.iblogger.org/sapusekozopufisatofipus.pdf
    • https://static.s123-cdn-static.com/uploads/4445321/normal_5ff13a5a1ec22.pdf
    • http://indonesia2health.online/7800418589031gow.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://76a725e8-946c-4ae9-9249-cda469d35108.filesusr.com/ugd/83c8cc_315fd7cd46ad4ca88f4acdfcf967a6a3.pdf?index=true
    • https://s3.amazonaws.com/vigevot/46974651559.pdf
    • https://4eb3a9b5-ca6a-4b2a-896e-878abc754f3b.filesusr.com/ugd/f1ab86_9dc0163c7a544e69ab9d401a41c5cd56.pdf?index=true
    • https://s3.amazonaws.com/ginutu/time_connectives_worksheet.pdf
    • https://569961a5-e6b5-462d-8b38-7193d5e7b20b.filesusr.com/ugd/a37a2e_44f843c2e05846db86b8d6745f49dfd6.pdf?index=true
    • https://s3.amazonaws.com/paropabaru/abcd_movie_telugu_lo.pdf
    • http://vamuxusonepuf.rf.gd/gamasiboguzu.pdf
    • https://s3.amazonaws.com/veraxawewib/geligeb.pdf
    • https://s3.amazonaws.com/lupebesu/jingle_bells_free_sheet_music.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fd38.bin
6e19d7418c2c281459a0a79ccc2d5319e6cfa6cebc505ab30a275f838bd016b5
pdf-font-stream PDF embedded font (sfnt) at offset 0xFD38 5388 bytes
font_01_sfnt_off00010f79.bin
32900032cc806c9589607c0e9fc9caef6c0796552414ecf56f231b393ce0dfe7
pdf-font-stream PDF embedded font (sfnt) at offset 0x10F79 10564 bytes