Malicious PDF — malware analysis report

Static analysis result for SHA-256 432fe8564309adc7…

MALICIOUS

PDF

68.7 KB Created: 2021-02-23 10:37:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 14fdf05c1e61c7b7c90f771ee9203a1a SHA-1: 29e2114a38c519adf89b4c69cf5bce3c323d00a9 SHA-256: 432fe8564309adc78bb1b33c6a1c600039d8d1c989dd56735a67dea6573fdafc
186 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.
  • 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://maypoin.ru/wix?keyword=virginia+dmv+manual+spanish PDF link annotation
    • https://cdn.sqhk.co/jeforije/jahbiel/bad_piggies_level_2-_iii.pdfIn PDF document text
    • https://cdn.sqhk.co/molivovuki/idifqhj/7995172033.pdfIn PDF document text
    • https://cdn.sqhk.co/gaxumisi/liiuidY/sasusipegasepivabagoza.pdfIn PDF document text
    • https://livekurot.weebly.com/uploads/1/3/4/4/134443702/rozukimoleridaw.pdfIn PDF document text
    • http://pakepudowo.22web.org/gcf_lcm_prime_factorization_worksheet.pdfIn PDF document text
    • https://cdn.sqhk.co/zuronenom/Xhhgiii/video_maker_with_music_app_download_for_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/feguzuvubut/if4Wjs3/45826204717.pdfIn PDF document text
    • https://cdn.sqhk.co/kewixoretuze/gpjinge/67730166907.pdfIn PDF document text
    • https://cdn.sqhk.co/zejizoguzut/cS5yggo/pimagerizuguwuj.pdfIn PDF document text
    • https://fugogifozu.weebly.com/uploads/1/3/4/8/134888696/4414049.pdfIn PDF document text
    • https://cdn.sqhk.co/fuvonazavo/pjiNwsL/nugile.pdfIn PDF document text
    • https://bozaxadoduzake.weebly.com/uploads/1/3/4/3/134306622/gikepufazogaro.pdfIn PDF document text
    • https://newimogo.weebly.com/uploads/1/3/1/0/131070302/23262aec.pdfIn PDF document text
    • http://nilitujawi.iblogger.org/81435657702.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://podedubo.epizy.com/agronomy_of_cassava.pdfIn PDF document text
    • http://nafabumawo.rf.gd/connect_icloud_email_to_android.pdfIn PDF document text
    • http://pofiron.rf.gd/obusforme_gel_seat_cushion_canada.pdfIn PDF document text
    • http://gosodesegebefi.rf.gd/napezaxoniz.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c278.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC278 4972 bytes
SHA-256: 9b61dfa34fd83b2f6f799bfaea517f85f6d487f4da34ddc986c4a1227580ed83
font_01_sfnt_off0000d31c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD31C 10684 bytes
SHA-256: 34dbb9b17f3a4099741843ea94956509a15a15bd9c84f7149b5e9dcd5260357a
font_02_sfnt_off0000f7a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7A4 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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