Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf6086fd7d59558d…

MALICIOUS

PDF

69.7 KB Created: 2021-02-18 23:41:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 2418775ddc2935106e9f645a0263a740 SHA-1: 5272945a7a9dac22e46666a3f10a9480176d8af0 SHA-256: bf6086fd7d59558d02d47a1e4329bdea874060b068792ff0a09c84296dcb3ac1
126 Risk Score

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
  • 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://bologen.ru/wix?keyword=hercules+costume+toddler PDF link annotation
    • http://ejqy.com/3152500887o4s9u.pdfIn PDF document text
    • https://zazivobonapi.weebly.com/uploads/1/3/2/6/132696398/8e554b41519.pdfIn PDF document text
    • https://cdn.sqhk.co/vijukifezu/gfzbWjj/stick_fight_the_game_download_windows_10.pdfIn PDF document text
    • https://cdn.sqhk.co/vudebalox/chaT7gi/iscuela_connect_parent_app_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379855/normal_5ff59ec8d69ca.pdfIn PDF document text
    • http://dkmz2.club/indian_movies_hd_fullkcpvr.pdfIn PDF document text
    • http://nuveclovet.xyz/direct_and_indirect_calorimetry1opuh.pdfIn PDF document text
    • https://tazokadenu.weebly.com/uploads/1/3/2/6/132695553/8638538.pdfIn PDF document text
    • https://cdn.sqhk.co/detatakev/8hehcP6/94266550150.pdfIn PDF document text
    • https://balukisivirunuw.weebly.com/uploads/1/3/5/3/135312861/7130933.pdfIn PDF document text
    • https://cdn.sqhk.co/karadirimose/jfTgeST/cut_and_paste_photo_editor_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/luveruzosu/gfjdgcM/piggy_3d_model_roblox.pdfIn PDF document text
    • http://legendarycraft.ru/246528370940muyx.pdfIn PDF document text
    • https://janirakuvofubej.weebly.com/uploads/1/3/4/7/134734148/bezezuri_nojadumufajume.pdfIn PDF document text
    • https://putigored.weebly.com/uploads/1/3/0/7/130738503/kukakitunekox.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491669/normal_5fd7efbd709f7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407303/normal_5fe819e7f1feb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420250/normal_5fcda8f90a23d.pdfIn PDF document text
    • http://autolombardpro.ru/how_to_become_an_nra_certified_range_safety_officer54fw1.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/xasovewipeje/zegutekezutemodebusov.pdfIn PDF document text
    • https://s3.amazonaws.com/gedimuta/53768678134.pdfIn PDF document text
    • https://s3.amazonaws.com/jovekus/beautyrest_platinum_chair_manual.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_off0000d4c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4C0 4836 bytes
SHA-256: 348a1c6e5ab61a14832795282cad3a36e7644fef4bdb8503505619bb1cd75a54
font_01_sfnt_off0000e515.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE515 10720 bytes
SHA-256: dff01a447df2eda40674a113e3bbf342064caabf51a612d9d609eb3bbaa88931

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