Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1b284f205aadf06…

MALICIOUS

PDF

72.3 KB Created: 2021-03-04 05:40:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: dbe5bb1e997a8e378205d229e0f9b7f2 SHA-1: c521bd26a4e9a6dfdd8aee95e3715af0311165b5 SHA-256: d1b284f205aadf06d34f39486e79bbb0f9c0ce02b36d15099ae32e0b2e937e96
156 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://golowaki.ru/award?keyword=stephen+king+11+22+63+show PDF link annotation
    • https://cdn.sqhk.co/jeforije/oovgigt/color_balloons_meaning.pdfIn PDF document text
    • https://gefawopunov.weebly.com/uploads/1/3/0/9/130969454/zebaledipejomelema.pdfIn PDF document text
    • https://cdn.sqhk.co/vibebexez/HhfzZji/givupabagiwuzafoz.pdfIn PDF document text
    • https://cdn.sqhk.co/remimidotomi/bPphdM7/foteluzexipemodaw.pdfIn PDF document text
    • http://rineset.xyz/65999031814xm23l.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453718/normal_5fcb4e8115c06.pdfIn PDF document text
    • http://kvadro63.ru/what_to_do_when_your_beats_wont_charge21uck.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379374/normal_5fdd5f624e68f.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/wunupalezozerud/can_can_easy_piano_sheet.pdfIn PDF document text
    • http://jukemasivu.epizy.com/55725657596.pdfIn PDF document text
    • https://s3.amazonaws.com/vutame/agnipath_video_songs_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/vukujidor/viripuwulidip.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_off0000de1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE1B 5504 bytes
SHA-256: 52d053acd3266dbc96781fa54cdd99a8b928f17d0ed8e3b816ff40bfd5015f77
font_01_sfnt_off0000f0f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0F2 10564 bytes
SHA-256: 464ac6fd650a79bda611e0926dc15fe76c2d72c5843eb2f6a22aade399271b2b