Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c7926c95dde5d58…

MALICIOUS

PDF

72.6 KB Created: 2021-02-16 08:12:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 37871e746125af6a065b02f71c4c369e SHA-1: e7c8e7aba677280d42a705a1e2b10235e4688d83 SHA-256: 0c7926c95dde5d586c14d75ee9af32f0462781718b6ac4d9b9e07aa0bd5869d9
194 Risk Score

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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=grey%2527s+anatomy+season+5+episode+8+sadie In PDF document text
    • https://falukanujenujo.weebly.com/uploads/1/3/2/8/132815213/pidamusevipef_ropukelijivesaj.pdfIn PDF document text
    • http://blog-millionaire.buzz/streets_of_rage_4_ps4_cheat_codespw4rn.pdfIn PDF document text
    • http://re-capital.ru/le_plan_comptable_mauritanien0b3jp.pdfIn PDF document text
    • http://nuveclovet.xyz/13372831855zsmt6.pdfIn PDF document text
    • http://xbet1.fun/lejerozokarz3qsj.pdfIn PDF document text
    • https://xabejopoturidu.weebly.com/uploads/1/3/4/3/134352457/b26c4f15.pdfIn PDF document text
    • http://filmera.ru/what_does_godfather_mean_in_the_bibleh8c9d.pdfIn PDF document text
    • https://fisupipegapug.weebly.com/uploads/1/3/4/5/134515512/7f3ce0.pdfIn PDF document text
    • http://my-favshopd.online/la_planC3A8te_des_singes_rC3A9sumC3A9uxfar.pdfIn PDF document text
    • http://copyrightsupportforlnstagram.com/flute_quartet_free_sheet_musicyf2p3.pdfIn PDF document text
    • http://euroshopme.site/vunuvixubejopirizrubbp.pdfIn PDF document text
    • https://cdn.sqhk.co/zugeketinog/Ajfhjgf/kanto_region_pokemon_go.pdfIn PDF document text
    • https://cdn.sqhk.co/lesasafo/h0B5cia/69529222725.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/pujirageg/hungry_dragon_full_game.pdfIn PDF document text
    • https://s3.amazonaws.com/joterige/free_call_recording_app_for_iphone.pdfIn PDF document text
    • https://s3.amazonaws.com/xapidajovaji/bollywood_movies_2017_all_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/dejazuvorira/gershwin_prelude_no_2_sheet_music.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_off0000dfe7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFE7 5560 bytes
SHA-256: e81fd12190c7bc80beb15a85d553927006126e9e10eaba8de477a7fa2c0fc5f4
font_01_sfnt_off0000f2cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2CD 10124 bytes
SHA-256: f50de8df34f15a960f34c77b7221c5a80600efee5daa340fa65231767c3c00d2

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