Malicious PDF — malware analysis report

Static analysis result for SHA-256 15bcee0ec7902958…

MALICIOUS

PDF

72.9 KB Created: 2021-02-12 00:49:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: e2675a1bea2cafbe7b4085e847231cb3 SHA-1: aa23214985100227bebd99857f162bfdf1f07e66 SHA-256: 15bcee0ec79029588e9a764eeac77398650d7cb55259f51c2a1e76f02d80af66
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://leonvi.ru/wb?keyword=jingle%20bells%20for%20trombone%20sheet%20music PDF link annotation
    • http://mmmmmme.space/itinerary_planner_templateixba8.pdfIn PDF document text
    • http://covid-19online.site/wiladunaridumewitot562.pdfIn PDF document text
    • https://cdn.sqhk.co/nakotuba/mjcSAia/25683977228.pdfIn PDF document text
    • https://cdn.sqhk.co/fofasafiwi/jejhL52/12211066586.pdfIn PDF document text
    • https://cdn.sqhk.co/koditisalupe/ibiiTqd/89076675802.pdfIn PDF document text
    • https://cdn.sqhk.co/xobabowiwa/hajc2gg/pakovigasozividepu.pdfIn PDF document text
    • https://cdn.sqhk.co/teketerep/ijdjfmN/prepper_pantry_list.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bolilolu.epizy.com/white_blood_cells_formed_in_bone.pdfIn PDF document text
    • https://s3.amazonaws.com/satulibaren/vubosizudajuwo.pdfIn PDF document text
    • http://wifudozakiteg.epizy.com/aadukalam_cut_songs_starmusiq.pdfIn PDF document text
    • https://s3.amazonaws.com/gewisetug/74699538958.pdfIn PDF document text
    • https://s3.amazonaws.com/libusamagowuvo/form_apply_visa_korea.pdfIn PDF document text
    • https://s3.amazonaws.com/fenatagazise/fikukabikewuwe.pdfIn PDF document text
    • https://s3.amazonaws.com/remufuzu/borland_c_for_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/vukusa/latest_ugandan_hit_songs.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_off0000e172.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE172 5212 bytes
SHA-256: cff6f7ecf435e4850f79ba4b056f774e3315f03f8a40961b0cde163987ed0afb
font_01_sfnt_off0000f30f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF30F 10504 bytes
SHA-256: a847611c23fcd917f75128d2473138bd032aaac2427c373d0149d88be6b4b01c