Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c8075706a3bd447…

MALICIOUS

PDF

152.1 KB Created: 2021-03-17 02:56:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 843451eeac75f60f969244ed9bca190e SHA-1: 183ade5bccab7caf085676f94ab9370c8663dfec SHA-256: 6c8075706a3bd4478ec58b54302d9ca0bb015ded95839821b5606cccdf7c9266
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a site offering an 'Apiculture book pdf'. This URL is flagged as suspicious and likely leads to a phishing or malware download page. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or delivering a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

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://resalured.ru/award?keyword=apiculture+book+pdf PDF link annotation
    • https://bipovubukixepev.weebly.com/uploads/1/3/2/7/132740720/0dcc34b68f48f.pdfIn PDF document text
    • https://cdn.sqhk.co/fuvonazavo/hcgcjhb/download_space_shooter_mod_apk_unlimited_money.pdfIn PDF document text
    • http://barberking.best/slaves_to_darkness_bookutyct.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411493/normal_60513ec6464a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421966/normal_60331a306be53.pdfIn PDF document text
    • https://fosijegaden.weebly.com/uploads/1/3/4/8/134868146/5661506.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499673/normal_603266693132a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387565/normal_5fe5a2de9a1cc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402711/normal_604dc48f47b2d.pdfIn PDF document text
    • https://cdn.sqhk.co/pirujezexod/jjsfBih/duck_hunting_season_ny.pdfIn PDF document text
    • http://kigurumi.org/divivebazopuxmude9.pdfIn PDF document text
    • http://lnstagramcopyrightcenter.com/how_to_program_directv_remote_rc66rx_to_dvd_playery7bkw.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/tajimipojimo/difference_between_google_chrome_os_and_android.pdfIn PDF document text
    • https://s3.amazonaws.com/vudivuzakal/mozozenilaboxusisoxex.pdfIn PDF document text
    • https://1cbf0fd9-62af-4102-a3dc-982f361539e7.filesusr.com/ugd/bfbc46_8480176ffb364f23b275bd9b69ff342d.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/puretulenuza/hp_officejet_pro_8620_printhead_appears_to_be_missing.pdfIn PDF document text
    • https://s3.amazonaws.com/wolina/99153835224.pdfIn PDF document text
    • https://s3.amazonaws.com/rafiralexezol/kisogirulumerid.pdfIn PDF document text
    • https://7a1f2a0d-094a-4466-88af-72a4af93b9fa.filesusr.com/ugd/22739b_b537fd1d3e6649b9875d2c63ce4804b1.pdf?index=trueIn 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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001f307.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F307 4732 bytes
SHA-256: 4ce03b4a2fa16a97697504abedd2457b38741fc8fd5556941b1a641042d91179
font_01_sfnt_off00020327.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20327 13488 bytes
SHA-256: 9c62fba9b21a9eedf42640b69d6143cb71359f0d136245b8554d251623e09084
font_02_sfnt_off00022f61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22F61 16060 bytes
SHA-256: 84d5bd19c210eb3b73ecc14096ab1e56fdfb5b80ce7ba4f0052c67c0c2b02727
font_03_sfnt_off000243f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x243F4 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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