Malicious PDF — malware analysis report

Static analysis result for SHA-256 266fd81095fcf070…

MALICIOUS

PDF

74.6 KB Created: 2021-06-12 11:30:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: ee32752afd93079bc8cbc5a69713a293 SHA-1: cd26f34d274f4fcb28eb0a723129159018a46d5b SHA-256: 266fd81095fcf070923d433cd2f2327103165d314312f7df5a3680b5ddfebc5c
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 0.9991

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://smidgel.ru/pbw?utm_term=merge+2+images+into+one+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4459791/normal_5fdad120e618e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421462/normal_6032b99fc7ad8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493569/normal_60bad165a863f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466140/normal_601711770a9af.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403263/normal_60026562be7b2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed9695b9-e1d7-4eec-bccf-d53547db4e15/telecharger_eset_smart_security_gratuit_avec_crack_2019.pdfIn PDF document text
    • http://juvozato.pbworks.com/f/cub_scout_tiger_handbook_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b6a740f3-ae2d-4441-b864-51ce09e08151/codigo_penal_de_puerto_rico_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2faf73c1-16b4-428d-ad25-ea09c75b8caa/how_to_treat_gram_positive_cocci_in_urine.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/abc5c844-357e-44df-9377-9d3b17fffab8/percy_jackson_1_full_movie_in_hindi_dubbed_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7109c69-6f8e-4978-aae3-d1a6e941a1b7/tajovebobebuxafuroboxe.pdfIn PDF document text
    • http://supatibu.pbworks.com/w/file/fetch/144418101/what_is_inner_transition_metals.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d87e001a-e027-4a31-bdab-c6caa47b7ca5/essential_university_physics_3rd_solution.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/61c25580-2d6e-4aeb-8800-2e35a696e016/whats_the_healthiest_thing_at_sonic.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87d07c7d-ce16-465f-b0ba-5d8b9f7686b5/puppies_for_sale_under_500_dollars_in_california.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b68a13a-5bf5-4fe3-9eff-eea86a0a9e76/hr_interview_questions_and_answers_for_freshers_in_capgemini.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/307db2f2-0ddc-4c78-948f-10c1fe8d7404/sodabi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0d723ce-e317-4418-b628-59e18a203b33/888688171.pdfIn PDF document text
    • http://rupebaxo.pbworks.com/f/baarishein_song_mp3.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5700f71-d5b3-4221-81b4-286b746ec626/salebasawozegoko.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e140aeea-4cd6-4bef-9cd1-c98d2699fc6c/iphone_5c_price_in_bangladesh.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3cbf0f70-10b2-4217-85a2-daf88e002eca/peg_perego_john_deere_gator_instructions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4061c8aa-d695-48f7-8762-ca707556f67b/samsung_hmx-f90_price_in_india.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c1a64ffc-84d5-47c5-a2b1-cf5cbc3dee41/how_to_set_preset_stations_on_sony_radio.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_off0000e7b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7B2 5464 bytes
SHA-256: 7c8289872b62afecf0241b0bb38a2e9bec506dc791fc7dd523aed308e1ee32b8
font_01_sfnt_off0000fa3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA3F 10156 bytes
SHA-256: 19841d463f0cf9aae1b9b1262003cc9a9182ad16998385de02aef4093870f327

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