Malicious PDF — malware analysis report

Static analysis result for SHA-256 9561ed716894af6f…

MALICIOUS

PDF

67.9 KB Created: 2021-02-18 22:41:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: df0cfe174389f103f9f3a73df03572ee SHA-1: e266caf8cac75ae93a8dc29d5856929e18982e3e SHA-256: 9561ed716894af6fb8d29ef27a1a177014e3a535b216c2e25afba144b4583b8b
136 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
  • 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://jottigo.ru/wix?keyword=ying+yang+twins+bedroom+boom PDF link annotation
    • http://jerijoba.iblogger.org/surifaxozibemekejoxij.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472185/normal_602c2e41ac001.pdfIn PDF document text
    • https://cdn.sqhk.co/zagusebipin/dHIhcM8/picotin_18_gold.pdfIn PDF document text
    • https://cdn.sqhk.co/kopilixa/jMib6jz/pejagonubef.pdfIn PDF document text
    • http://wivejudotimog.22web.org/brindisi_report_incidente_superstrada.pdfIn PDF document text
    • https://cdn.sqhk.co/nawiwola/jficXV7/encyclopedia_britannica_set_15th_edition.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410020/normal_601b667960b4e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450426/normal_5fffcadbb82eb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416154/normal_60275927ac9b6.pdfIn PDF document text
    • https://cdn.sqhk.co/bedogipaxog/48lIheS/twist_hit_game_online.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/jiwisi/bergey_s_manual_gram_positive_rods.pdfIn PDF document text
    • http://durunorutap.epizy.com/incentive_calculation_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/jijari/the_abominable_bride_english_subtitles_free.pdfIn PDF document text
    • https://s3.amazonaws.com/muvevanepen/nezigezo.pdfIn PDF document text
    • https://s3.amazonaws.com/dukavunivifa/symmetry_worksheets_4th_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/fidefofudi/nusaju.pdfIn PDF document text
    • https://s3.amazonaws.com/rilexazejuzovep/bp_chart.pdfIn PDF document text
    • https://s3.amazonaws.com/kotenu/luzojexewegalaj.pdfIn PDF document text
    • https://s3.amazonaws.com/rovikibixu/xufujotipo.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_off0000cdce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDCE 5408 bytes
SHA-256: 462c1f5c6acd2ac66a988ecad44da72c3dee3c3a2bb25ac8612b7c9fdd6c3790
font_01_sfnt_off0000e036.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE036 10056 bytes
SHA-256: 2b3ca4a57f1fe2a1c0e0abe137af262ec58b80d93bcaccadd398595e2f4ff4ab