Malicious PDF — malware analysis report

Static analysis result for SHA-256 62e77b67df38dcc9…

MALICIOUS

PDF

70.5 KB Created: 2021-02-13 23:07:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 4cb5077687dbf08eeabd01366916dce3 SHA-1: 99641932daeb16b53b2c9395af970a58b4d69019 SHA-256: 62e77b67df38dcc977d941657cc74cd6bb9042b61f0d045e93fbeedcbbbeba9c
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://seumenha.ru/wix?keyword=nesco+18+qt+roaster+oven+instructions PDF link annotation
    • http://freshnatur.fun/synonyms_worksheet_with_answers_for_grade_3ru5s4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484093/normal_6001baac7e473.pdfIn PDF document text
    • https://cdn.sqhk.co/wujakegu/gjgeY5u/ufc_results_248_wiki.pdfIn PDF document text
    • https://cdn.sqhk.co/jivazufevi/iqaEF0I/82036810818.pdfIn PDF document text
    • http://repair-planshetov.ru/how_to_paracord_wrap_a_knife1ubav.pdfIn PDF document text
    • https://cdn.sqhk.co/sanevujaguda/hageiau/wisigedejilufef.pdfIn PDF document text
    • https://cdn.sqhk.co/kugefiruxat/lgijcxC/pokemon_heart_gold_kanto_region_gym_leaders.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476282/normal_60153d5421f1e.pdfIn PDF document text
    • https://sibitolifi.weebly.com/uploads/1/3/4/7/134732274/7484155.pdfIn PDF document text
    • http://1yamal.space/new_company_profile_examples5ch8a.pdfIn PDF document text
    • https://cdn.sqhk.co/xexisini/gdPihfK/sijopawezumafaxuluvojojem.pdfIn PDF document text
    • https://guretaximijogu.weebly.com/uploads/1/3/0/7/130739376/gajaziwivate-sidududemud-butedemomebeb-vevotaxo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495974/normal_5fdebb9db96a7.pdfIn PDF document text
    • https://cdn.sqhk.co/ziwetuvije/giclxja/drop_stack_ball_free_online_game.pdfIn PDF document text
    • https://cdn.sqhk.co/laruxibut/igjeigZ/whatsapp_messenger_download_app_2020.pdfIn PDF document text
    • https://pitisugokusibim.weebly.com/uploads/1/3/4/4/134445344/fa3ae839376.pdfIn PDF document text
    • https://cdn.sqhk.co/someteku/8vheibf/soxoxudexugixe.pdfIn PDF document text
    • https://cdn.sqhk.co/sivojadirabe/ZdihhaC/operating_basketball_score_clock.pdfIn PDF document text
    • https://cdn.sqhk.co/zepipawetopi/EuihJgd/disegix.pdfIn PDF document text
    • http://birjand.design/37332832284np6gn.pdfIn PDF document text
    • https://cdn.sqhk.co/kobewudojuvo/hiKeHji/throne_of_eldraine_collector_booster_box_contents.pdfIn PDF document text
    • https://cdn.sqhk.co/vedanoderifu/WjiLhaj/join_clash_3d_app_download.pdfIn PDF document text
    • https://cdn.sqhk.co/sovokeduseb/Moozshj/pitched_tuner_apk.pdfIn PDF document text
    • http://center-san.ru/1490117746vvo0h.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000cfaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFAF 5164 bytes
SHA-256: 54ec23824f6f516185442f614cfc92710cd82ee30489d0481ddcf7a7730ea5e3
font_01_sfnt_off0000e168.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE168 13744 bytes
SHA-256: 4e28be4b9fb89ec5d024e2c689298cf00ab574aae42d85a73a687d91bef38454

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