Malicious PDF — malware analysis report

Static analysis result for SHA-256 de2b1cc4d9c03aa6…

MALICIOUS

PDF

85.8 KB Created: 2021-03-12 11:42:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: e1b7fdec8b5919ae2866e268452e52d0 SHA-1: 31cddfacb16ae54b23136115ece7d70055da714f SHA-256: de2b1cc4d9c03aa6f6ab5718fdd5f776a7e9a0d69e1f4d20850bef84a122fbe1
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://pelibifir.ru/award?keyword=functional+family+therapy+pdf PDF link annotation
    • http://cyberlife.store/streetcar_named_desire_sparknotes_scene_6ixllo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413363/normal_5fc5aaecf27ca.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414169/normal_6008a34d7d10e.pdfIn PDF document text
    • http://navaram.online/97233856380bhzr1.pdfIn PDF document text
    • http://wow50.pro/damaxokukumoiqd4a.pdfIn PDF document text
    • http://teksalle.xyz/20039628040khp7f.pdfIn PDF document text
    • http://samozanyat.info/bubble_shooter_2ngk9h.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425010/normal_6027c90c80aa2.pdfIn PDF document text
    • http://natlab.ru/texas_holdem_poker_deluxe_pro_apkulmci.pdfIn PDF document text
    • http://iminn.ru/72346929348bjtc.pdfIn PDF document text
    • http://vanlit.ru/sugoduzisuxodene29q1b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369765/normal_5fea0a9b2c476.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xafaxotaful/89688572406.pdfIn PDF document text
    • http://jemileti.atwebpages.com/gameshark_cheat_codes_pokemon_emerald.pdfIn PDF document text
    • https://s3.amazonaws.com/vutame/koborodibowu.pdfIn PDF document text
    • https://s3.amazonaws.com/vojapu/update_android_terbaru_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/pexodugosa/helping_linking_and_action_verbs.pdfIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/37995486421.pdfIn PDF document text
    • https://s3.amazonaws.com/vabedafozo/what_are_the_five_freedoms_of_the_first_amendment_amy_coney_barrett.pdfIn PDF document text
    • http://zubiluwetij.myartsonline.com/dungeons_and_dragons_full_movie_download_in_hindi.pdfIn PDF document text
    • https://s3.amazonaws.com/nefagolom/arcserve_udp_5._0.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_off00011353.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11353 5276 bytes
SHA-256: 1ccd32d0b4e33d8e33b6b355de192b666787549cca6687c25afc8ac81f4fbd57
font_01_sfnt_off0001252a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1252A 10720 bytes
SHA-256: 72501b613c11c90a3446fa3fc191bbae697b5570343f918269930c09a9aa8bec

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