Malicious PDF — malware analysis report

Static analysis result for SHA-256 08f7b7cb96b12406…

MALICIOUS

PDF

67.1 KB Created: 2021-02-02 21:05:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 7ec31309bf5f9651866fdb475cc67c05 SHA-1: 8a32d0dcd7d88a4ecf260d503b213ef09d610589 SHA-256: 08f7b7cb96b1240633264a5c346029eb567f45975babf369eac50d55b1e1111d
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/aws?utm_term=castle+on+the+hill+lyrics PDF link annotation
    • http://dolanuja.iblogger.org/2018_telugu_calendar_free.pdfIn PDF document text
    • http://foxinawolukomat.iblogger.org/72202900879.pdfIn PDF document text
    • https://cdn.sqhk.co/sawusuzi/RXaW0WU/nixumuzodivoloberofo.pdfIn PDF document text
    • https://cdn.sqhk.co/tiwoxebu/fahjiaW/dumodazipegebu.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/kumasala/godrej_industries_ltd_balance_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/fuzafuzeruwit/mufagoruwexolifovopogaze.pdfIn PDF document text
    • https://s3.amazonaws.com/popisiburewixuj/buying_a_used_car_checklist.pdfIn PDF document text
    • https://s3.amazonaws.com/gapuruxumeg/busybox_pro_apk_old_version.pdfIn PDF document text
    • https://s3.amazonaws.com/pirosisob/96145610648.pdfIn PDF document text
    • http://luzadewo.epizy.com/kogetudemuj.pdfIn PDF document text
    • https://s3.amazonaws.com/legapatatezisa/kexolokosubafetefekanu.pdfIn PDF document text
    • https://s3.amazonaws.com/jagux/air_raid_siren_sound_effect_s.pdfIn PDF document text
    • http://fenelepor.epizy.com/cute_baby_photos_unsplash.pdfIn PDF document text
    • http://solazagu.epizy.com/fuxibuwemuvozanim.pdfIn PDF document text
    • http://kavotipuwevir.epizy.com/labels_in_word_2007_template.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_off0000cca3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCA3 4896 bytes
SHA-256: 4d33472fa070deeb114ef4b2f6d13bc09ff9f1aaca5229d815caef4133c55544
font_01_sfnt_off0000dd41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD41 10040 bytes
SHA-256: 3c5b918273761cb94bf5b239f31b3c61eafd98991e4866cda5f12c17bf2cec3f