Malicious PDF — malware analysis report

Static analysis result for SHA-256 79803229f8a97470…

MALICIOUS

PDF

71.2 KB Created: 2021-02-21 01:41:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 5d6c6f4714c20fd98b948b312176843a SHA-1: a8e24826ed7403b761e5920a8a5205016073b802 SHA-256: 79803229f8a974703117eb20b8faf251e168c150088bb649ddf5b826d1c63d13
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=panasonic+toughbook+cf-53+mk4+review PDF link annotation
    • http://wegansit.space/desamiberabapuluzh27s.pdfIn PDF document text
    • https://cdn.sqhk.co/xuwolegu/ggagg8C/barber_shop_nyc_barcelona.pdfIn PDF document text
    • https://cdn.sqhk.co/jabisopomuxo/gpje0gh/86263752419.pdfIn PDF document text
    • https://cdn.sqhk.co/dodazija/jhifWgc/12278366718.pdfIn PDF document text
    • http://jelabenix.22web.org/91859666258.pdfIn PDF document text
    • http://cg-designer.xyz/8_sentence_paragraphamn4b.pdfIn PDF document text
    • https://cdn.sqhk.co/togokitaz/ibbdhj3/zara_larsson_wow_remix.pdfIn PDF document text
    • http://thelandofbadideas.com/boxz._io_hack_apkguj3d.pdfIn PDF document text
    • http://legendbilisim.com/nepowuguzawunedoxmpa4j.pdfIn PDF document text
    • http://doctora.club/what_is_the_summary_of_harry_potter_and_the_goblet_of_fire5ipci.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/somamere/47630145257.pdfIn PDF document text
    • https://s3.amazonaws.com/fizup/adm_manager_apkpure.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwimadaneb/stepper_motor_datasheet.pdfIn PDF document text
    • http://kepinud.rf.gd/gevuzaxi.pdfIn PDF document text
    • https://s3.amazonaws.com/zuses/49163418513.pdfIn PDF document text
    • http://raziwisubuza.rf.gd/65842864469.pdfIn PDF document text
    • https://s3.amazonaws.com/sasufufa/iphone_activation_bypass_tool_v1._4.pdfIn PDF document text
    • https://s3.amazonaws.com/dowavelaxam/catalog_of_unabashed_gratitude.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_off0000d72b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD72B 6028 bytes
SHA-256: fd6d90362f254242d3c8e51da3404478baeead403a33692d07b8132ac9230ff4
font_01_sfnt_off0000ebaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBAF 10548 bytes
SHA-256: 6bd78f732b790419fcad59d55fa3b4705c2a63ae73643c1659b55a40e28abc8a