Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c74a735e1f0390b…

MALICIOUS

PDF

63.6 KB Created: 2021-02-07 00:51:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: ea7e6ad83e2257e029c6ffd226b374bd SHA-1: 3b6cbd656aef11050d25a4231dde7aadc46182fe SHA-256: 2c74a735e1f0390b53e8c22c56caaeabbc29c065a9f37a4a143176c912ca4829
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an external URI pointing to a URL associated with a 'reading recovery programme' lure. ClamAV detected this file as Pdf.Phishing.Trojan, and a machine learning classifier also flagged it as malicious. The presence of multiple unknown URLs suggests a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/123?utm_term=reading+recovery+programme PDF link annotation
    • https://cdn.sqhk.co/kitaparek/hbAhdK2/62878041342.pdfIn PDF document text
    • http://cookwellbakewell.com/zodurateqi0.pdfIn PDF document text
    • http://lnstagram-badge-verification.com/allocine_cinema_des_cineastes_parisw4jta.pdfIn PDF document text
    • https://cdn.sqhk.co/dapumexader/jgWvbeM/contra_rogue_corps_legendary_weapons.pdfIn PDF document text
    • https://cdn.sqhk.co/jekuzedu/TygVLTG/warcom_genesis_apk.pdfIn PDF document text
    • http://4kuhd.me/952894101507rjz7.pdfIn PDF document text
    • http://chestlune.online/96227812627vs0bs.pdfIn PDF document text
    • http://talkme-news.info/nhl_playoffs_2019_resultskndjg.pdfIn PDF document text
    • https://cdn.sqhk.co/jidulopavoji/Ute2ggd/latest_liverpool_fc_transfer_news_now.pdfIn PDF document text
    • http://flymoney.net/622237167588t1ag.pdfIn PDF document text
    • http://filanion.online/2172142516813f1u.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/dotivaf/burgundy_wine_formal_dresses.pdfIn PDF document text
    • https://s3.amazonaws.com/fatisake/47114412886.pdfIn PDF document text
    • https://s3.amazonaws.com/fojaxexino/ayudha_pooja_comedy_video.pdfIn PDF document text
    • https://s3.amazonaws.com/tokit/bahamas_extra_bold_font_free.pdfIn PDF document text
    • https://s3.amazonaws.com/xulikamul/ios_13_public_beta_6.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b23f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB23F 5060 bytes
SHA-256: a25a77c42cdfc2a854a51648c8f9e6097088704d77d0c3f093469a7decbb156b
font_01_sfnt_off0000c35a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC35A 9388 bytes
SHA-256: b1e48358cd01824ad42be038c159fdf0d9640494e67cf55f58e5d6c5e99e2918
font_02_sfnt_off0000e379.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE379 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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