Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a2a655b95708f6f…

MALICIOUS

PDF

64.1 KB Created: 2021-02-23 16:33:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 66aee1c4febb79fa30acbde3424e16d7 SHA-1: 8f861be3d621c6483e2c72694a04f0ed18fa287b SHA-256: 1a2a655b95708f6f9e7402930d9397cc0975e483be09b2e267478d896f2c2925
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • 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.
  • 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://baarspo.ru/wix?keyword=on+the+want+of+money PDF link annotation
    • https://cdn.sqhk.co/jawuraxexije/epie2je/flip-_flops_in_espanol.pdfIn PDF document text
    • https://zaluzukefajol.weebly.com/uploads/1/3/5/4/135400247/titogezu.pdfIn PDF document text
    • https://cdn.sqhk.co/modajili/jaieMGs/77238068194.pdfIn PDF document text
    • https://revijokatise.weebly.com/uploads/1/3/3/9/133999222/geponej_fagukedunov_tozapekun_xibumalo.pdfIn PDF document text
    • https://cdn.sqhk.co/mivijigonof/Biiibig/msr_pocket_rocket_stove_kit_amazon.pdfIn PDF document text
    • http://car-test.pro/biology_practical_book_class_11_gseb23sv4.pdfIn PDF document text
    • https://cdn.sqhk.co/lekusovu/chljigh/fakituxefi.pdfIn PDF document text
    • http://italiahot.space/barron27s_ielts_latest_edition_2019dg5nv.pdfIn PDF document text
    • https://cdn.sqhk.co/vixemujomu/eNoh0ZQ/color_bump_3d_poki.pdfIn PDF document text
    • https://cdn.sqhk.co/luwokiseg/hjfghqo/siwanido.pdfIn PDF document text
    • https://cdn.sqhk.co/butituguxur/pjfxihK/celebrity_cruises_emergency_phone_number.pdfIn PDF document text
    • https://cdn.sqhk.co/jiloduvunilu/hDHv9hg/89300077617.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/xirixepo/polatamelipajag.pdfIn PDF document text
    • https://s3.amazonaws.com/tojazudibumogab/what_is_the_relationship_between_population_and_economic_welfare.pdfIn PDF document text
    • https://s3.amazonaws.com/tejuvonixag/bhojpuri_gana_wala.pdfIn PDF document text
    • https://s3.amazonaws.com/pokorevalaxex/raliwub.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_off0000c09e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC09E 4924 bytes
SHA-256: 34326ae0f718f6f520506d2882485b4cdc3b585525963e4c38885e2f546ef41e
font_01_sfnt_off0000d156.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD156 10168 bytes
SHA-256: 924f95f8c0a88b26b829d733bb5a06bd7cd422bb6997afe414aa880d51e79dac

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