Malicious PDF — malware analysis report

Static analysis result for SHA-256 9953e1b4e710dd23…

MALICIOUS

PDF

69.3 KB Created: 2021-02-22 19:25:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 0a95fbd1809906247c7371e3027c626a SHA-1: 1d81d72b0b9ee003ee2b3ad6f2f9f54ba4eb7a71 SHA-256: 9953e1b4e710dd2397b80cf295d56b4ddc71869d88e7c89acc5779440804d9b5
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jottigo.ru/wix?keyword=movie+box+apk+file PDF link annotation
    • http://myfirstsite.xyz/461563067065qz8d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496380/normal_602eeb9f332b5.pdfIn PDF document text
    • http://24magazine.ru/nocturne_secret_garden_sheet_music_violin_freeu9tqr.pdfIn PDF document text
    • http://bio-ita.fun/avg_antivirus_windows_10_free8r7ug.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452850/normal_600dc77a55e9e.pdfIn PDF document text
    • https://cdn.sqhk.co/buvaboda/hxjjPhe/4_play_band_delaware.pdfIn PDF document text
    • https://nedamekiwuj.weebly.com/uploads/1/3/1/3/131379605/6136192.pdfIn PDF document text
    • http://electorat.org/85185519929mt5wq.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445532/normal_5fdd698eb20ec.pdfIn PDF document text
    • https://cdn.sqhk.co/pukikojat/hv1Fqjc/mega_jackpot_free_tips_channels.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420238/normal_5fed332146be9.pdfIn PDF document text
    • https://xasukibumit.weebly.com/uploads/1/3/4/7/134749231/sezop.pdfIn PDF document text
    • https://cdn.sqhk.co/nivuduful/Khfgjje/womejufutex.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/gawabog/18064869942.pdfIn PDF document text
    • https://s3.amazonaws.com/zupenafud/composition_of_functions_and_their_domain_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/feborobegibew/burtons_grill_nutrition_information.pdfIn PDF document text
    • https://s3.amazonaws.com/makumapikeze/71146053711.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_off0000d46b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD46B 4960 bytes
SHA-256: 54a862cad8f69bec0d01d6d61e0f907a7e4dd929b1e745a0458fcbf36ab9a3ab
font_01_sfnt_off0000e57e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE57E 10240 bytes
SHA-256: 348bcdd53f785c0501011519f0a50dca4dd28a2138a1b021aadb1d3aa5b85974