Malicious PDF — malware analysis report

Static analysis result for SHA-256 93aeda037e057bb2…

MALICIOUS

PDF

90.0 KB Created: 2021-04-03 00:27:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: cccc8d336d62d2e1181254cdf9f22a7e SHA-1: 286b502893853b8ee4a5e746b6f70be64abf890c SHA-256: 93aeda037e057bb2afd112f29c1280a303fa0b895efa3c00fefd35dcbc5fc83f
104 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged as malicious by a ML classifier and ClamAV, indicating a high likelihood of malicious intent. The document contains urgency-related language, suggesting a phishing or social engineering tactic. An external URI pointing to 'dugedepap.ru' was extracted, which is likely part of the attack chain to deliver a payload or redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://dugedepap.ru/strik?utm_term=how+bad+is+human+trafficking+in+the+uk PDF link annotation
    • https://cdn.sqhk.co/ruwopazeg/bhaidHr/1861768390.pdfIn PDF document text
    • http://xafukuxovikovu.22web.org/cheat_sheet_html_css.pdfIn PDF document text
    • http://jolixasij.sportsontheweb.net/berserk_art_book.pdfIn PDF document text
    • https://cdn.sqhk.co/woferomot/Dhaqxjb/picture_collage_maker_online_free.pdfIn PDF document text
    • https://cdn.sqhk.co/fagiseregu/chc1jce/94857166151.pdfIn PDF document text
    • http://filebitikuj.iblogger.org/biology_book_class_11_ncert.pdfIn PDF document text
    • https://cdn.sqhk.co/suxujaba/gagoKWN/4228282303.pdfIn PDF document text
    • http://bumosid.getenjoyment.net/biometry_statistics.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/dozore/the_game_cast_season_3_episode_19.pdfIn PDF document text
    • https://s3.amazonaws.com/dixaleko/nattamai_video_songs_full.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/344f5119-26bf-4e6b-8cd2-b6ed4a4a6386/best_life_books_to_read.pdfIn PDF document text
    • http://datasagedabisu.epizy.com/dolalikifefenuzat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/54519866-3849-4621-a9f2-d78b4ffbd2a6/11801765252.pdfIn PDF document text
    • https://s3.amazonaws.com/kefodek/free_psd_business_card_templates_with_bleed.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/22936dea-9904-44d1-afbb-65964bc50abf/meridian_phone_system_tech_support.pdfIn PDF document text
    • https://s3.amazonaws.com/wupiwupiwot/dikuluzolatiran.pdfIn PDF document text
    • https://s3.amazonaws.com/xovekolamoxe/63953093427.pdfIn PDF document text
    • http://bopubedoru.myartsonline.com/accounting_ledger_entry_examples.pdfIn PDF document text
    • http://mujebik.atwebpages.com/tebajoxug.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_off00011ffd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FFD 5660 bytes
SHA-256: 4ed7346546e3c6c8cf56ae1c9d96e9f87faea24f5b50ddc777c63e1bd3fcb259
font_01_sfnt_off00013325.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13325 12016 bytes
SHA-256: dae3cae4154c85e3b02ed00343eb692eb453299053dd8aee300f94c4a3929a8c

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