Malicious PDF — malware analysis report

Static analysis result for SHA-256 dabc4112c9f073fc…

MALICIOUS

PDF

72.2 KB Created: 2021-02-11 10:24:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 5cce886df6f0a46b26aea1c984080404 SHA-1: 3b91dfb35dc3369c71e55c0aa880c6b39e05e339 SHA-256: dabc4112c9f073fc7524394d0a0d19565dcda5f3b5052ca72e822787b1d4aba2
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://leonvi.ru/wb?keyword=fishing%20report%20beaver%20dam%20lake%20wisconsin PDF link annotation
    • http://classicalnaturally.com/daburewuxemexufejisajremf2.pdfIn PDF document text
    • http://luzikudejijes.22web.org/xuwozivibimizasi.pdfIn PDF document text
    • http://vodoroding.info/4705413505btrhg.pdfIn PDF document text
    • http://niwapona.iblogger.org/allegiant_read_online_free.pdfIn PDF document text
    • http://dojimifarekajiw.iblogger.org/2d_design_v2_software_free.pdfIn PDF document text
    • http://confirmationhelpcenter.com/42603277203if6tf.pdfIn PDF document text
    • http://jaturexexabaf.22web.org/najuzonukex.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/satudifin/100_cotton_bed_sheets_set.pdfIn PDF document text
    • http://tufuripisaren.epizy.com/batman_arkham_origins_ps4.pdfIn PDF document text
    • https://s3.amazonaws.com/jolozidabi/70874447832.pdfIn PDF document text
    • http://fesusate.rf.gd/liabilities_reported_on_the_balance_sheet_include.pdfIn PDF document text
    • http://rerodijunenema.epizy.com/favorites_list_template.pdfIn PDF document text
    • https://s3.amazonaws.com/jojitagifuva/lasubovadali.pdfIn PDF document text
    • https://s3.amazonaws.com/jizubisetebof/aberdare_community_school_inspection_report.pdfIn PDF document text
    • http://nudegew.rf.gd/4105799398.pdfIn PDF document text
    • https://s3.amazonaws.com/bojafazes/37919370346.pdfIn PDF document text
    • https://s3.amazonaws.com/ribowexulo/wovuwosowafi.pdfIn PDF document text
    • https://s3.amazonaws.com/gisujubolidine/2952360625.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_off0000d833.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD833 5800 bytes
SHA-256: 6eae91d739b2d4ca594cc19d143b30fcfc592c5b529569ab0ef1ee273f235f95
font_01_sfnt_off0000ebd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBD8 11728 bytes
SHA-256: 735e3688e248ec16c60c885a968fd40bd777fd5ccc16aa5fe961439d9b4f8c1f