Malicious PDF — malware analysis report

Static analysis result for SHA-256 2df60744170d4a58…

MALICIOUS

PDF

80.9 KB Created: 2021-03-01 19:33:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: e87eb4be67a9366842c5f54328255713 SHA-1: 25e8798184e73dbcb2b2e6b4d80623daf0b20a57 SHA-256: 2df60744170d4a58ae862c8c421850b638e6c373930fd551751eb8042b9e5f9c
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains an embedded URI pointing to 'baarspo.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to a book summary, which is a common tactic for phishing or social engineering.

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://baarspo.ru/strik?utm_term=strength+in+what+remains+book+summary PDF link annotation
    • http://lomigakorak.getenjoyment.net/what_elements_can_potassium_bond_with.pdfIn PDF document text
    • http://sberbank.link/honda_eu2200i_price_philippinestbt4h.pdfIn PDF document text
    • http://wujejejifi.mygamesonline.org/elite_platinum_air_fryer_2.1_qt.pdfIn PDF document text
    • http://welitizenowem.mywebcommunity.org/4702891803.pdfIn PDF document text
    • http://tejovotemikodes.getenjoyment.net/panasonic_viera_television.pdfIn PDF document text
    • http://gagimubu.mywebcommunity.org/26968035195.pdfIn PDF document text
    • http://cashbackmoney.info/fraktur_collum_humeriubena.pdfIn PDF document text
    • http://quickpapp.online/32429251336tyx87.pdfIn PDF document text
    • http://eduha.online/3176729140rx16z.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nonibil.epizy.com/12350014265.pdfIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/atv312_installation_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/wutisigila/samsung_tv_remote_control_application_android.pdfIn PDF document text
    • https://s3.amazonaws.com/zarusegibitumet/how_to_clean_new_keurig_mini_with_white_vinegar.pdfIn PDF document text
    • https://s3.amazonaws.com/ninazarila/gedefirit.pdfIn PDF document text
    • https://s3.amazonaws.com/votubukaxogilix/kisoravipimefa.pdfIn PDF document text
    • https://s3.amazonaws.com/zufaxepixiguxax/probability_aptitude_questions_and_answers_for_tcs.pdfIn PDF document text
    • https://s3.amazonaws.com/tetenifeme/21628288289.pdfIn PDF document text
    • http://wadoromutisagar.myartsonline.com/agatha_christie_books_online.pdfIn PDF document text
    • http://xinifaduzinuvu.onlinewebshop.net/21422429668.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_off0000fefd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEFD 5568 bytes
SHA-256: b5939901fc7b414672a64452018c05b356c4bd5d59cc4327710a63fbb28603e0
font_01_sfnt_off000111d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111D6 10668 bytes
SHA-256: f7b3eea091c5b1a5d7bfdb437f97bd23fd2c64212a1745d838ce4f4bf12231d9

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