Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fae47c388dfd4b8…

MALICIOUS

PDF

92.7 KB Created: 2021-03-30 13:00:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: fefdbe323a41ab0fcdbf1a4c8d879d01 SHA-1: 9d4c73d2c9cdd66d48a689d13cca5aabef608cc2 SHA-256: 5fae47c388dfd4b8935f022cc0d97b843b48fb4b8216245f9dfa9c95d1408b23
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 0.9998

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://crophysi.ru/wix?keyword=kindle+paperwhite+user%2527s+guide+17th+edition PDF link annotation
    • http://zebiripu.mygamesonline.org/arabic_words_to_english_translation.pdfIn PDF document text
    • http://foripekomufotir.mypressonline.com/30941587227.pdfIn PDF document text
    • https://cdn.sqhk.co/tigafita/YhJigEg/euphoria_answer_bts_ilkpop.pdfIn PDF document text
    • http://shop-profildoors.ru/96151362648x4pze.pdfIn PDF document text
    • http://m-laskin.ru/19539257275zoozv.pdfIn PDF document text
    • http://tetiviguxawik.getenjoyment.net/22283433703.pdfIn PDF document text
    • https://cdn.sqhk.co/dukoredod/eHVVgd6/bifexikatazatabugomok.pdfIn PDF document text
    • https://cdn.sqhk.co/sixerusesebu/88ibz2u/kong_heroes_wiki.pdfIn PDF document text
    • http://pozijuza.scienceontheweb.net/dimitilugifajiwebuvox.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/fajixe/john_deere_310_backhoe_hydraulic_hoses.pdfIn PDF document text
    • https://s3.amazonaws.com/remuv/nutritional_labelling_guidelines_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/zalomi/how_to_play_baldurs_gate_2_multiplayer.pdfIn PDF document text
    • https://s3.amazonaws.com/niporofez/18937962234.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a336253b-cbd2-4d5b-8783-cdfc3981a7a0/how_to_reset_a_keurig_2.0.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be53dd85-2162-4f14-bb0a-386196a88a77/hp_deskjet_2545_scanner.pdfIn PDF document text
    • http://nujilexulajuwup.atwebpages.com/mandalas_para_colorear_adultos.pdfIn PDF document text
    • https://s3.amazonaws.com/kalanejaxutilif/41729811506.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9bf33d26-f4e8-4084-b8fd-fc4ab460b635/bowflex_xtreme_review.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_off00012935.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12935 5448 bytes
SHA-256: 8ac0f54a9fd92969d5f0211ad7c31450c8b98a02369c6effda1f33592d7e6bee
font_01_sfnt_off00013be1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13BE1 11716 bytes
SHA-256: be70dc6fc9874da1f21411c2b431d046486c383b74ee382ac5950b9071149165

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