Malicious PDF — malware analysis report

Static analysis result for SHA-256 602fc051e302e122…

MALICIOUS

PDF

76.2 KB Created: 2021-04-01 18:06:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: dfe030ca6cb0e5369d0f6f3f3ad0f3c0 SHA-1: b63098ff7e29207e788138dc10eabc4b1d8f73fa SHA-256: 602fc051e302e1223396fafeede48a3ae6287de096eec5d37af671dd89eceb0a
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://soxebez.ru/award?keyword=calculus+one+questions+and+answers+pdf PDF link annotation
    • http://doucheop.xyz/how_to_factory_reset_disabled_iphone_without_a_computer7ekj2.pdfIn PDF document text
    • https://jumifusat.weebly.com/uploads/1/3/4/6/134629025/c8298148fecdd.pdfIn PDF document text
    • http://nuverlites.online/lg_lfx31925st_02_water_filteraiiup.pdfIn PDF document text
    • http://reassurez-moi-fr.info/basic_algebraic_expressiont7o7c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387219/normal_604fe326dca4c.pdfIn PDF document text
    • https://namewedopuso.weebly.com/uploads/1/3/4/5/134583017/6721604.pdfIn PDF document text
    • http://zesamoa.online/dipilividugipamubevuut8hn.pdfIn PDF document text
    • https://cdn.sqhk.co/tamejenonisi/jU5JAul/74231243796.pdfIn PDF document text
    • http://oneitstore.pro/govinda_namalu_telugu_picturepoemo.pdfIn PDF document text
    • https://cdn.sqhk.co/zovifesojeme/rdxieCJ/starlink_internet_speed_vs_5g.pdfIn PDF document text
    • https://cdn.sqhk.co/tizadufof/hjlEgi5/arabic_mehndi_design_pics.pdfIn PDF document text
    • http://shtangye.xyz/508212455291rqzn.pdfIn PDF document text
    • https://watoniworawi.weebly.com/uploads/1/3/4/8/134871767/lawomejizerosuw-rakoval-wizifenesav.pdfIn PDF document text
    • http://makedctl.site/lunobop6ujcv.pdfIn PDF document text
    • http://copytoshka.ru/garmin_drive_52_mt-s_5_gps_unit1zlbn.pdfIn PDF document text
    • https://marizezibafive.weebly.com/uploads/1/3/4/8/134865590/4397966.pdfIn PDF document text
    • http://mp4.design/allotropy_of_iron9bs5i.pdfIn PDF document text
    • http://azalea.store/19392935281x2so1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481515/normal_60510ed883d02.pdfIn PDF document text
    • http://lnstagramverifiedsbadgeform.com/fobigimejarimiwamihz5ty.pdfIn PDF document text
    • https://cdn.sqhk.co/manuguwe/vNiaoih/winking_lizard_tavern_canton_oh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387031/normal_60608ab25ae97.pdfIn PDF document text
    • http://clientbluebadge.com/wewetixfm86m.pdfIn PDF document text
    • https://vukajikabazaxeg.weebly.com/uploads/1/3/4/7/134711597/4057157.pdfIn PDF document text
    • https://cdn.sqhk.co/worupageke/hcshatz/68573728357.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_off0000eab3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAB3 5272 bytes
SHA-256: ed95bf0fa6ebb3f1d53c140c0f5b07b3d267e41311c2321071b84e43e52d38d0
font_01_sfnt_off0000fcbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCBB 10620 bytes
SHA-256: 612f0e5eec09467cca8f0f78ac7a91cebff906d7679118b40f48d9e1c128c026

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