Malicious PDF — malware analysis report

Static analysis result for SHA-256 cda0fbdd2fded6bf…

MALICIOUS

PDF

73.1 KB Created: 2021-03-08 15:58:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 6310e4df17e505a78ce6fbd921a71a54 SHA-1: 1817d8ac9a63070e281e2c3f46430c88c080f4e0 SHA-256: cda0fbdd2fded6bfb468ab272179533a5c93482c66394b00f02ba57b3df74070
116 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. It uses a callback-phone (TOAD) lure. 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 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
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://lozipotod.ru/aws?utm_term=health+and+safety+training+dvds+uk PDF link annotation
    • http://lizowaw.scienceontheweb.net/97803147559.pdfIn PDF document text
    • http://allieshouseofhope.com/arinc_429_data_bus_formatudumm.pdfIn PDF document text
    • http://setokanekema.mygamesonline.org/asu_mechanical_engineering_major_map_2020.pdfIn PDF document text
    • http://xepelewatelaziv.getenjoyment.net/how_to_service_a_delonghi_coffee_machine.pdfIn PDF document text
    • http://finansi-7.online/700025551515cx2e.pdfIn PDF document text
    • http://detonicufficiale.website/musica_chapeuzinho_vermelho_pela_estrada_aforabx4x1.pdfIn PDF document text
    • http://gevenukodujojov.getenjoyment.net/42844726834.pdfIn PDF document text
    • https://cdn.sqhk.co/lewoxiguj/iU4IrlV/yakuza_0_space_harrier_cheat_engine.pdfIn PDF document text
    • https://cdn.sqhk.co/barevirus/g3gz61m/10355278060.pdfIn PDF document text
    • https://cdn.sqhk.co/titolegun/if3waih/sosupibuvatoputanerufow.pdfIn PDF document text
    • http://axecheat9.xyz/what_is_the_best_bible_verse_for_healingtutii.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://manuwakagekewu.onlinewebshop.net/kemitekaziraj.pdfIn PDF document text
    • https://s3.amazonaws.com/fadedosi/paterizubikufowek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af8b9582-4514-4cf6-989d-1ea9b2c12205/zigavedufuzutiwinazan.pdfIn PDF document text
    • https://s3.amazonaws.com/zabejuvijolu/mechanics_of_materials_beer_6th_edition_solutions_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/251d1fed-1c1c-4f38-9636-16db9a1f6cfd/military_hand_to_hand_combat_guide.pdfIn PDF document text
    • http://mugazukadum.onlinewebshop.net/huckleberry_finn_book.pdfIn PDF document text
    • https://s3.amazonaws.com/sivanira/26981102067.pdfIn PDF document text
    • https://s3.amazonaws.com/fedure/what_types_of_jobs_for_graphic_designers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67f2b89d-0aed-4498-a914-dd97481689fa/netgear_wnr3500l_specifications.pdfIn PDF document text
    • https://s3.amazonaws.com/damerirazib/45549842790.pdfIn PDF document text
    • http://jotudokizer.onlinewebshop.net/fox_news_san_diego_covid.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_off0000dfca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFCA 5356 bytes
SHA-256: 8965b1e0827d80fa5c5d74d7f549b5e274135270a81c113c99a593f8260c14f7
font_01_sfnt_off0000f207.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF207 10776 bytes
SHA-256: b3c57a331a3d956e3159469c3050533e263bf97b343aa0215109bba21ff5852c

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