Malicious PDF — malware analysis report

Static analysis result for SHA-256 018e0a791c9dd87e…

MALICIOUS

PDF

81.8 KB Created: 2021-03-06 17:08:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d60f5b30266235d3a21d4059f45187f1 SHA-1: 1902d24a4bd71fd540e51b01124f46c9b5ced03c SHA-256: 018e0a791c9dd87e646d2399e27880285312a51592bd1ecb9ad31cf7ddfa5fa5
96 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating the presence of external URIs and is flagged by ML classifiers and ClamAV as malicious. The embedded URL, 'https://jumiwimov.ru/aws?utm_term=euro+pro+8260+sewing+machine+manual', suggests a phishing or scam attempt disguised as a sewing machine manual. While no scripts were explicitly extracted, the PDF structure and malicious URL indicate an attempt to redirect the user to a harmful site, likely for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://jumiwimov.ru/aws?utm_term=euro+pro+8260+sewing+machine+manual
    • https://cdn-cms.f-static.net/uploads/4405194/normal_60140971db10a.pdf
    • http://sipataj.sportsontheweb.net/31718672230.pdf
    • https://cdn.sqhk.co/letabuner/enmJ6kC/42239717757.pdf
    • https://cdn-cms.f-static.net/uploads/4368240/normal_6014c2b4c1dba.pdf
    • http://msertis.xyz/how_to_ignore_boyfriend_after_a_fightj7mux.pdf
    • http://kellys.space/41840397031jjwlu.pdf
    • http://betijeduw.getenjoyment.net/45257155763.pdf
    • http://helpcopyright-service.com/46110248815si4p3.pdf
    • https://static.s123-cdn-static.com/uploads/4366676/normal_5ffd46b24d4a8.pdf
    • https://static.s123-cdn-static.com/uploads/4372085/normal_5fcf4921a40f7.pdf
    • http://lojasamericanasbr.com/44120774171y2j2x.pdf
    • https://cdn-cms.f-static.net/uploads/4450511/normal_600b62922ffd3.pdf
    • https://static.s123-cdn-static.com/uploads/4379355/normal_5ff21feedea41.pdf
    • http://wijetaz.mypressonline.com/d_link_dap_1522_login.pdf
    • https://cdn-cms.f-static.net/uploads/4406166/normal_6009eaa9c26a3.pdf
    • http://nosixavol.sportsontheweb.net/yoga_asana_book_in_hindi_free_download.pdf
    • http://mir23.xyz/how_much_do_arbys_gyros_costjxk0j.pdf
    • https://cdn-cms.f-static.net/uploads/4447276/normal_5fd632de8ffd6.pdf
    • https://cdn.sqhk.co/vumatoxikom/4Tghaje/xowofemu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/7911a1e8-d99b-4fda-bcf3-f551c26ea976/homemade_metal_lathe_plans.pdf
    • https://uploads.strikinglycdn.com/files/52faa8f9-9013-4f9a-96ee-780f80191aee/m-audio_axiom_25_25-key_usb_midi_keyboard_controller.pdf
    • https://uploads.strikinglycdn.com/files/e6ce4ca6-8148-4eb5-ab15-02d2b2a2afcd/podowutidawokas.pdf
    • https://uploads.strikinglycdn.com/files/f8c0ba98-1145-42d1-8a88-2dc32f40915b/wajeloriveluk.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_off0001023a.bin
5dadeb208d76a7198d1eb15a68e699e508371bbc8c611644e11b78652bbc95ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1023A 6020 bytes
font_01_sfnt_off000116a7.bin
841791043ce7c058e5b69b77152843deeef29b0ff5638b8456189d71610accd2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x116A7 10348 bytes

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