Malicious PDF — malware analysis report

Static analysis result for SHA-256 54eaed5a47fba9f0…

MALICIOUS

PDF

67.3 KB Created: 2021-03-04 05:32:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 483fc197f7a58fd0988671bc7d71edbd SHA-1: f4639775af44edeb6fb2db3d16d2d3c962104562 SHA-256: 54eaed5a47fba9f0b26a785e36dcf5e2c66895f3f8f08b2db3711dbfe44d6623
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://kuzutuzo.ru/award?keyword=how+to+turn+off+garmin+approach+s60 PDF link annotation
    • http://dhl-order.info/pixel_car_drag_tune3032w.pdfIn PDF document text
    • http://futup.ru/dearborn_heater_for_salemh3lw.pdfIn PDF document text
    • http://airbin.top/18338778205q2sv.pdfIn PDF document text
    • https://dixufewopirar.weebly.com/uploads/1/3/0/7/130775961/vurezipirexanim.pdfIn PDF document text
    • https://laxivaxof.weebly.com/uploads/1/3/0/8/130874385/rapubufak-sanuk-ruderosofa.pdfIn PDF document text
    • http://mklhhhh.space/buremagobudiz5eyop.pdfIn PDF document text
    • https://nakaporona.weebly.com/uploads/1/3/1/4/131438848/3896041.pdfIn PDF document text
    • http://wejnpowk.space/exploration_craft_lite_apkhc5oe.pdfIn PDF document text
    • http://7evenrp.ru/pdf_kambikuttan_homeve3r0.pdfIn PDF document text
    • https://zatenumidepav.weebly.com/uploads/1/3/0/7/130776458/512975d1be64612.pdfIn PDF document text
    • http://iwhite.space/html_form_disable_button_after_submit65tze.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/vapelurowar/learning_and_development_manual.pdfIn PDF document text
    • http://lunupesefobe.rf.gd/dd_sports_live_app_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vikukinumet/reporter_young_sklep_online.pdfIn PDF document text
    • https://s3.amazonaws.com/varolexexus/will_there_be_an_altered_carbon_3.pdfIn PDF document text
    • https://s3.amazonaws.com/nafoxuda/how_to_rig_a_fishing_pole_for_saltwater_pier_fishing.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_off0000c82a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC82A 5748 bytes
SHA-256: d3382ce619be0b883fd529696ee1984ed0a4a1f2b5753f39b9099b9603fe55c4
font_01_sfnt_off0000dba7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBA7 10680 bytes
SHA-256: 8c35fc417628e9dce14f05f9fdb1dbda18d9ee4d9063dc8581d159d5d9450efe