Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a0431385fca940e…

MALICIOUS

PDF

65.6 KB Created: 2021-02-16 07:38:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 66c9afb1bf3799e4248b4bbc8a1f5315 SHA-1: a77b0a343e152e811e39a5ff6882784e24b9fe2c SHA-256: 8a0431385fca940e589eeac2d39511a98de52233c8b71d4ac9d422b673e9c368
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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
  • 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://druttle.ru/wix?keyword=wicked+ties+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4495391/normal_5fec530a7d98c.pdfIn PDF document text
    • http://itawegan.space/vorexolosisojorokidue408.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391305/normal_5fea1f5e3f9f0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403807/normal_6007c92915610.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485321/normal_5fcbfdedd8832.pdfIn PDF document text
    • http://zathkatow.xyz/bugexv7wgr.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452217/normal_5fd2e6d6744a1.pdfIn PDF document text
    • http://cmbclientes.com/51564809022k0h9i.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387224/normal_602b35a077b50.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370560/normal_60031b2bccc5e.pdfIn PDF document text
    • http://cosmosqrab.online/ample_guitar_m_lite_ii_manualzqqkt.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403823/normal_601db43a42bf4.pdfIn PDF document text
    • http://wiinorama.fun/2598314684038xex.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449421/normal_5fdc33632f4d4.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/fasudikek/home_child_care_agency_licensing_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/wisuw/street_fighter_4_ppsspp.pdfIn PDF document text
    • https://s3.amazonaws.com/jepinebawo/jajofobala.pdfIn PDF document text
    • https://s3.amazonaws.com/vasofirida/zumokezuba.pdfIn PDF document text
    • https://s3.amazonaws.com/regegozumekoza/android_17_won_tournament_of_power.pdfIn PDF document text
    • https://s3.amazonaws.com/fadobirak/yanni_nostalgia_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/sesijesule/animals_dance_tamil_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/bejideba/goal_oriented_product_roadmap_template.pdfIn PDF document text
    • https://s3.amazonaws.com/vonutavekip/xuvunun.pdfIn PDF document text
    • https://s3.amazonaws.com/joterige/balak_palak_audio_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/bidurudilidujug/88377658257.pdfIn PDF document text
    • https://s3.amazonaws.com/sizabo/altronix_acm8_installation_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_off0000c58c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC58C 4888 bytes
SHA-256: 42a9b95b2f363d53fa83f5a81c9c76dd9b5e8fd408138d56479adc02ff54ffe0
font_01_sfnt_off0000d65e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD65E 10140 bytes
SHA-256: d10cf4ca2091a4fc50e324841d33b4517b5c235e29920863f16544aa5fe637e7

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