Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0a7762410776e1d…

MALICIOUS

PDF

72.7 KB Created: 2021-02-13 12:50:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 5c5693ac74eb53f01c945a4d0ba93c34 SHA-1: 89e924c9128ce307a7655c8a64271938d5ab84f2 SHA-256: a0a7762410776e1de612555c46f60be72c1c01ad5bb7f4351f49adcd1b9b4e6d
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://seumenha.ru/aws?utm_term=google+play+store+online PDF link annotation
    • https://cdn.sqhk.co/vekuzajomugi/cgjzS82/word_online_download_mac.pdfIn PDF document text
    • http://jijimaxugixu.22web.org/mrityunjay_kadambari_marathi_file.pdfIn PDF document text
    • https://cdn.sqhk.co/lugizumevemu/JigzIqK/mibisezifer.pdfIn PDF document text
    • https://cdn.sqhk.co/nagubeze/j8IihbU/raxedilemeresurino.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470523/normal_5ff190cd17bf2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384142/normal_5fd63afc1358d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413227/normal_5fd6aedd77389.pdfIn PDF document text
    • https://cdn.sqhk.co/busibelifiv/jbxgghb/zafag.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420039/normal_601fb5bd566d5.pdfIn PDF document text
    • https://cdn.sqhk.co/xipitufekaru/heQigS8/piano_online_lessons_uk.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/xujitezu/fasojasadonusovu.pdfIn PDF document text
    • http://ravimerafewede.epizy.com/source_filmmaker_apk_android.pdfIn PDF document text
    • https://s3.amazonaws.com/zesotat/speak_now_1.pdfIn PDF document text
    • https://s3.amazonaws.com/sepawi/jamewadubez.pdfIn PDF document text
    • https://s3.amazonaws.com/babuxufarizuxur/wegibesipigan.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_off0000e207.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE207 5120 bytes
SHA-256: e5d204c9d2cb3a189033626019cb217594dbf8ea1b88fee62f33dc400f371a13
font_01_sfnt_off0000f38e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF38E 10016 bytes
SHA-256: 68086487f6440a1b273eb5a705d05922c440577ced36872cc15a0906c25fb9e7