Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc70f5f0672bf0c0…

MALICIOUS

PDF

70.3 KB Created: 2021-02-14 07:27:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: c89a55368483af3daa2d46189c7a9a6a SHA-1: 26fc7c098cb0650f65357c0a516c23eba1119d27 SHA-256: fc70f5f0672bf0c0debf52c439b12315341fb4754944b724a6de294f6bcb0ded
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://jottigo.ru/wix?keyword=hungry+shark+world+hacked+apk+2019 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4405662/normal_600b3b18daa5a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416927/normal_5fc91df2239a8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411686/normal_5fc5bcc240ee4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478950/normal_60141152bbd2c.pdfIn PDF document text
    • http://domen3.club/ghatna_chakra_gk_in_englishmiy4c.pdfIn PDF document text
    • http://sibuvre.com/volcanic_rock_crossword_puzzle_answerrtn98.pdfIn PDF document text
    • http://tokio-2020.fun/xbox_360_headset_wirelessal8vt.pdfIn PDF document text
    • http://gratoramaa.space/lajezajezewojolixf4zpu.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/tidigudetefumof/zolup.pdfIn PDF document text
    • https://s3.amazonaws.com/wujixus/17146651960.pdfIn PDF document text
    • https://s3.amazonaws.com/fifuto/concepto_de_aceptacion_social.pdfIn PDF document text
    • https://s3.amazonaws.com/zagubip/burglar_alarm_circuit_diagram.pdfIn PDF document text
    • https://s3.amazonaws.com/papuja/kaala_patthar_full_movie_720p.pdfIn PDF document text
    • https://s3.amazonaws.com/mikibetiv/11144432089.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxime/adb_command_to_check_android_version.pdfIn PDF document text
    • https://s3.amazonaws.com/kiwopusafize/pierre_bourdieu_la_dominacion_masculina.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_off0000d41b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD41B 6036 bytes
SHA-256: 632251b05fa1c8abc57f02226da63620b2d73bbc8f63a9fe493b6537ca7e29da
font_01_sfnt_off0000e8c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8C0 10260 bytes
SHA-256: 4850e74564fcdcb6b48acefd85475eb9547325823dfb569e64776d854f52a367