Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3464fc4bbe2b2d5…

MALICIOUS

PDF

74.3 KB Created: 2021-03-26 08:16:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 50c90e717a1c38da3b21732bd7882897 SHA-1: df966da81492a9d625f5bdf19d2787f948ce57fb SHA-256: f3464fc4bbe2b2d513eefbbd6dc7f1cf875b1e3ee73212d152b2a9b1472525a4
96 Risk Score

Malware Insights

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

The file was detected as a malicious PDF by ML classifiers and ClamAV, specifically identified as Pdf.Phishing.Trojan. It contains multiple embedded URLs, with the primary one being `https://jottigo.ru/wix?keyword=how+champions+think+pdf+espa%25C3%25B1ol`, which likely leads to a phishing site. The PDF structure also shows signs of malicious intent with duplicate object bodies.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jottigo.ru/wix?keyword=how+champions+think+pdf+espa%25C3%25B1ol
    • http://qlemelest.online/tippmann_a-5_manualtlgwj.pdf
    • https://dofedexakupular.weebly.com/uploads/1/3/4/3/134317333/wupejaturixep.pdf
    • http://raifaisentgo.online/lalazemunozvibr.pdf
    • https://mufalugibesenu.weebly.com/uploads/1/3/1/4/131453255/1061250.pdf
    • http://okstore.info/83700166062med80.pdf
    • http://newsportstechnology.ru/used_gy6_150cc_engine_for_saleqy37q.pdf
    • http://uspehdnyaaxyz.xyz/suwukeko26pjk.pdf
    • http://verification-help.com/unicorn_invitation_template_blank7lelc.pdf
    • https://cdn.sqhk.co/fusozuwalas/igVjd9v/tiny_planets_dvd_trailer.pdf
    • http://smirnoff-optic.com/best_books_to_read_if_you_want_to_study_psychologyxzuqr.pdf
    • https://cdn.sqhk.co/valujoper/hchhF7a/datadog_dashboard_default_time_range.pdf
    • https://cdn.sqhk.co/wevujawej/6jBhcRj/bloons_td_6.pdf
    • https://cdn.sqhk.co/fibafape/4toiagh/musilumetinipifixozadagev.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://492f55f4-3442-4b37-b17e-39d9f2f0ae8a.filesusr.com/ugd/7dfe85_86c61bf35d104883ab8cd45f6c141af3.pdf?index=true
    • https://6739ca04-605d-4ff4-b4c9-4e5bd75a7819.filesusr.com/ugd/031dda_70809e759ef34972a15491b4c19232ed.pdf?index=true
    • https://uploads.strikinglycdn.com/files/e92d75ec-82a9-4f21-add2-86b6e0663a06/87539647899.pdf
    • https://uploads.strikinglycdn.com/files/35630543-0226-4b7b-8f86-3308095ab477/review_of_atomic_structure_vocabulary_crossword_answer_key.pdf
    • https://uploads.strikinglycdn.com/files/acea98cf-fed2-471d-827f-1a101219f99d/nook_hd_plus_bntv600_specs.pdf
    • https://bbf05351-1c49-455c-8ea8-df349977a4d5.filesusr.com/ugd/15c6d6_579fbcc830764c7d8a33dc4deee370ad.pdf?index=true
    • https://uploads.strikinglycdn.com/files/17f15713-7480-4eaa-a780-c50bb4df7cc2/allen_carr_download_free.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_off0000df17.bin
98a68414d292873731d67b161049b81d91379b8cc2bb50e7c59c2b9171cef8aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDF17 5628 bytes
font_01_sfnt_off0000f1e8.bin
a4a22090c924f53fe3a79b1d89205e769a56e35dfc68df0627319167be2afa98		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF1E8 11844 bytes

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