Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cc0768cb0deb38a…

MALICIOUS

PDF

67.9 KB Created: 2021-03-01 06:56:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 15b44f0a75c13e620ffc01ed6864b2b1 SHA-1: 0cbd9f3bcf6e8522379bed37a3d0ac7065f204ec SHA-256: 6cc0768cb0deb38a122ef7c3cf9be564ab7078cbf45f741b7f69c44a152cfb24
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://dugedepap.ru/award?keyword=naming+binary+covalent+compounds+worksheet+answers PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4413375/normal_6016361ca8009.pdfIn PDF document text
    • http://jokojujut.medianewsonline.com/honeywell_rth2310b_instructions.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408871/normal_6013d9a033610.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380701/normal_6004f12e705d2.pdfIn PDF document text
    • http://borejukeluteva.mygamesonline.org/geguwulasel.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471481/normal_6020ff0e57b51.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387566/normal_5fe7327d6f4c3.pdfIn PDF document text
    • http://zuregazezoral.mygamesonline.org/60124521030.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://duwagisu.epizy.com/ergometer_trainingsplan.pdfIn PDF document text
    • https://s3.amazonaws.com/tinivukedeta/atmospheric_science_for_environmental_scientists.pdfIn PDF document text
    • https://s3.amazonaws.com/novipaliwid/63042817083.pdfIn PDF document text
    • https://s3.amazonaws.com/kitakilesa/start_up_costs_template_uk.pdfIn PDF document text
    • http://rotitow.rf.gd/biwavamezol.pdfIn PDF document text
    • http://juvuzonowokogu.rf.gd/wevuruxoguk.pdfIn PDF document text
    • https://s3.amazonaws.com/sepawi/infant_benadryl_dosing_guide.pdfIn PDF document text
    • http://nenutufap.epizy.com/animated_arrow_gif_image_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kisimujuk/android_10_for_s9_release_date.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_off0000cbe8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBE8 5912 bytes
SHA-256: 7b5849dc4907ec5e2415d95940261799aba22a3338fbebf1359bb26fd47b5727
font_01_sfnt_off0000dffa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFFA 9904 bytes
SHA-256: 90c878198be5b3b8d1c07017a656285bfb123b4fee52de7436edf9dc82a7695c