Malicious PDF — malware analysis report

Static analysis result for SHA-256 6163b2369d2ed10d…

MALICIOUS

PDF

75.8 KB Created: 2021-02-24 10:52:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 287f0006d7ad47a32a45eb5c92a16c1e SHA-1: c5d569c72995a34ba27980a53fc63b67ba58a8d6 SHA-256: 6163b2369d2ed10d2bca782735b864cacdc2e9ed1e4e2413988e737cf3dac4c8
184 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.
  • 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.
  • 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/123?utm_term=disney+cast+member+blackout+dates+2021 In PDF document text
    • http://mebelintera.ru/beautiful_boy_original_motion_picture_soundtrackwqlny.pdfIn PDF document text
    • https://cdn.sqhk.co/mowezeto/Eib7jds/53038288874.pdfIn PDF document text
    • http://idealsit.space/28113791383fvy7h.pdfIn PDF document text
    • https://niniteju.weebly.com/uploads/1/3/0/8/130814631/5716153.pdfIn PDF document text
    • https://davugunibelerab.weebly.com/uploads/1/3/4/6/134612729/cddf624efae6.pdfIn PDF document text
    • https://cdn.sqhk.co/satidaruxami/5gghitR/deadly_dinosaur_simulator_wild_dino_city_attacks.pdfIn PDF document text
    • https://cdn.sqhk.co/ruxuvedije/eggiijd/infinity_symbol_tattoo_with_dates.pdfIn PDF document text
    • http://storeeu.info/does_kaz_love_inejwe4bd.pdfIn PDF document text
    • https://ruxakidefo.weebly.com/uploads/1/3/4/1/134131713/duduvafemin_pibafufus.pdfIn PDF document text
    • http://rapegutuxipik.22web.org/tajegobiv.pdfIn PDF document text
    • http://saudiautoinsurance.com/easy_video_cutter_for_android_phonei6ait.pdfIn PDF document text
    • http://ideaita.fun/platform_air_force_1_womens_pinkfm6ko.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/fejakixoweka/51681129805.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxime/50396248636.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/55517063074.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_off0000e7f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7F5 5716 bytes
SHA-256: 1c17ff2ddfd86d4d45101a2be16f1cd09a5a7efaf44ebf5747dc2f74a682a231
font_01_sfnt_off0000fb61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB61 11604 bytes
SHA-256: 4ca200ecbff554545158a3ec998c6f4e69b6cd96d357806cb0b6cff1841d69cb