Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dfe6b0d7a59d0ad…

MALICIOUS

PDF

72.3 KB Created: 2021-01-24 18:30:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-31
MD5: 8901381bd0eb4aea5712e5576f0d4af0 SHA-1: 2578e6ea56997a28be450a71b8eba780266dcf7b SHA-256: 3dfe6b0d7a59d0ad638a9eb19b022014943c0c74306b727231d4f6ddac83a142
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://traffnew.ru/123?utm_term=morgan+county+tax+assessor+il PDF link annotation
    • https://cdn.sqhk.co/puvubuzu/moZgij6/72585190282.pdfIn PDF document text
    • https://cdn.sqhk.co/lamiwifa/20icPN9/38205040378.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443292/normal_5ffe72ed9c208.pdfIn PDF document text
    • https://cdn.sqhk.co/jalizovi/ce7jjie/worship_songs_mp3_download_uganda.pdfIn PDF document text
    • https://cdn.sqhk.co/zanaforare/8jajghf/70073733613.pdfIn PDF document text
    • https://cdn.sqhk.co/xokunafuse/ihhihaq/zezejud.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/vibuvomomuv/17291740539.pdfIn PDF document text
    • https://s3.amazonaws.com/zonivezada/palliative_care_coding_guidelines_2019.pdfIn PDF document text
    • http://jotikovan.rf.gd/45469857097.pdfIn PDF document text
    • http://zezajezo.epizy.com/indeed_career_guide_finance.pdfIn PDF document text
    • https://s3.amazonaws.com/dinilederu/84066595803.pdfIn PDF document text
    • https://s3.amazonaws.com/gomakobez/wasteland_2_squad_guide.pdfIn PDF document text
    • http://fibubaxuvuvixik.epizy.com/gst_annual_return_format_notification.pdfIn PDF document text
    • https://s3.amazonaws.com/mejifavo/lekitiperisa.pdfIn PDF document text
    • https://s3.amazonaws.com/roware/bsek_result_2019_ssc_part_1_marksheet.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_off0000dced.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCED 5144 bytes
SHA-256: 5b47a80da5b0773aeb0f950ef96b8d0a738ec398ac0fdce513c61afe1c30c8f9
font_01_sfnt_off0000ee94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE94 11092 bytes
SHA-256: ff1718d52459c108ecda074ed84e4c65c1b898f0621f1bace8ee5303e0932eae