Malicious PDF — malware analysis report

Static analysis result for SHA-256 3af0265ea28868f2…

MALICIOUS

PDF

70.4 KB Created: 2021-01-21 00:42:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: adc94baee0ebfeb75e15a7f9cbc56071 SHA-1: 6c97f347651eec59d8fe4f9c06c0449c52362144 SHA-256: 3af0265ea28868f2ab440014c02127940ebd3ddea1b6d00ec8be29216b7f5798
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=batman+arkham+origins+mod+apk+latest+version PDF link annotation
    • https://cdn.sqhk.co/mofinopedas/JjjiCz0/calendar_widget_month_agenda_1._29_unlocked.pdfIn PDF document text
    • https://cdn.sqhk.co/kelopifagisu/hdjg6gg/temple_final_endless_run_oz.pdfIn PDF document text
    • https://cdn.sqhk.co/mujejadalale/chajhib/68423099415.pdfIn PDF document text
    • https://site-1220854.mozfiles.com/files/1220854/guidelines_on_the_definition_of_default_eba.pdfIn PDF document text
    • https://site-1168079.mozfiles.com/files/1168079/loud_sms_ringtone_mp3_free_download.pdfIn PDF document text
    • https://site-1168170.mozfiles.com/files/1168170/shopify_checkout_page_template.pdfIn PDF document text
    • https://cdn.sqhk.co/sagitusat/iizLheD/band_apparel_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/bipadifudame/EiaU5Nl/ordained_minister_license_number.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/rojalexipokadaz/nolideji.pdfIn PDF document text
    • https://s3.amazonaws.com/gaxuremewuger/53330986527.pdfIn PDF document text
    • https://s3.amazonaws.com/wozoxub/create_your_own_letter_tracing_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/gowebabuxogiro/wavewamimevexesalexonax.pdfIn PDF document text
    • https://s3.amazonaws.com/kefefetafij/99692602530.pdfIn PDF document text
    • https://s3.amazonaws.com/wibadinavosunom/respiracin_aerobia_y_anaerobia.pdfIn PDF document text
    • https://s3.amazonaws.com/wazotojemov/49667699745.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_off0000d52f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD52F 5544 bytes
SHA-256: 630198eefa35bdfda7739e619d194b7b86c4131ccb7947acdd2ddce913cc1770
font_01_sfnt_off0000e7ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7EA 10764 bytes
SHA-256: f3fe235ff59e9244b69e108cc35535ef364bf2af26fcb3749e8282a6461204b0