Malicious PDF — malware analysis report

Static analysis result for SHA-256 64beca494258a79b…

MALICIOUS

PDF

68.5 KB Created: 2021-03-03 00:21:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 7b4ddc6b87506101fb393827dd6e2e1e SHA-1: 67010ac6d121de325be23d197d0a350bafe49545 SHA-256: 64beca494258a79baf099cca9363e98b6d86a8a161ce4f4569996f1911af6124
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://maypoin.ru/wix?keyword=mmea+2020+app PDF link annotation
    • https://cdn.sqhk.co/gipudeviwapi/ggJkWeA/xapebobabotefelutamid.pdfIn PDF document text
    • http://alex-chekalev.com/6491181540725ck2.pdfIn PDF document text
    • http://bikelumonekodex.mygamesonline.org/94657913178.pdfIn PDF document text
    • https://cdn.sqhk.co/dusujukakal/iiFShh8/racing_wars_mod_apk.pdfIn PDF document text
    • http://vnds-v.website/the_context_meaning_and_scope_of_tourism_reading_answers_mini_ieltsz6zee.pdfIn PDF document text
    • http://rewita.fun/tiyatro_oyunu_nasl_yazlrpvsjk.pdfIn PDF document text
    • http://digtalcaliper09.xyz/motorola_surfboard_model_sbg6580-g228z9exb.pdfIn PDF document text
    • http://sugameloxufe.mywebcommunity.org/accu-chek_fastclix_102_lancets.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/xakajoziwibi/66965981877.pdfIn PDF document text
    • https://s3.amazonaws.com/sojebelevenex/worupurizoxoxetigux.pdfIn PDF document text
    • http://widifusi.myartsonline.com/why_did_the_spanish_armada_want_to_invade_england.pdfIn PDF document text
    • https://s3.amazonaws.com/tufitijinexu/43477643997.pdfIn PDF document text
    • http://zepizevut.atwebpages.com/78240831988.pdfIn PDF document text
    • https://s3.amazonaws.com/womirofop/64643013831.pdfIn PDF document text
    • https://s3.amazonaws.com/dowavelaxam/gejusawape.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_off0000cfcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFCB 4936 bytes
SHA-256: f9cc433cce22f41c80808f3c772045ac3f8e017769e09ca22793aaee89bcf4aa
font_01_sfnt_off0000e08d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE08D 10852 bytes
SHA-256: 32594083a301017f31f01f404a72835bd5b975abb71013ef46b59e0b19c22c4a