Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffe1107e84fe5dd4…

MALICIOUS

PDF

72.1 KB Created: 2021-02-06 02:44:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e6109f29f06bc38f727bff91b71153de SHA-1: 69850674ad33bab49369399179f4fd5a498f96bc SHA-256: ffe1107e84fe5dd431be10da69106d724b4a9bebaa20b2fb24dd4d3d342655de
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/wb?keyword=asphalt%208%20airborne%20free%20%20for%20mac PDF link annotation
    • http://prizinsta365.site/eenadu_epaper_today_telugu_downloadyq1w0.pdfIn PDF document text
    • https://cdn.sqhk.co/romilononove/CHjsWhg/flight_pilot_simulator_3d_game_download.pdfIn PDF document text
    • http://lefavapexusa.iblogger.org/ashes_cricket_2009_crack_free.pdfIn PDF document text
    • https://cdn.sqhk.co/tazifawixax/bkjaSab/emergency_alert_around_me.pdfIn PDF document text
    • https://radinake.weebly.com/uploads/1/3/1/8/131856095/luramalawegosusuve.pdfIn PDF document text
    • https://cdn.sqhk.co/wiwuwigo/CY2cLjh/xevudodenorateroluwukez.pdfIn PDF document text
    • https://viwoseloza.weebly.com/uploads/1/3/4/8/134861971/835cff.pdfIn PDF document text
    • https://xugimitedekilim.weebly.com/uploads/1/3/1/4/131482884/gewozawufaduzegimavo.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/juvetaso/behringer_q1202usb_xenyx_small_format_mixer.pdfIn PDF document text
    • https://s3.amazonaws.com/lofese/55682036268.pdfIn PDF document text
    • http://gumigojozupe.epizy.com/georgia_power_bill_template.pdfIn PDF document text
    • https://s3.amazonaws.com/rimejiguvif/38353052355.pdfIn PDF document text
    • http://jefevuxivux.epizy.com/boxivo.pdfIn PDF document text
    • https://s3.amazonaws.com/bakoloj/27670190520.pdfIn PDF document text
    • http://giduzorim.epizy.com/82044786843.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_off0000dc58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC58 5576 bytes
SHA-256: aa6d7da5b36c7383c7e31ad059aec6e4d837a358be03822b45ccd4079e896c7d
font_01_sfnt_off0000ef23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF23 10724 bytes
SHA-256: e29f71db332cd8082c4fab84155d9dfd0d9dbea703009d9d4a94e6b6db602695