Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae7c2951ffd63ea6…

MALICIOUS

PDF

84.7 KB Created: 2021-03-01 22:04:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 265468086bc94a4afdd4f230eb8b0646 SHA-1: 433a6a3d17939b9ddbe275b2cab81f4141a25328 SHA-256: ae7c2951ffd63ea6884b3675acc6320131e73aba0e1e85ec7960754298183c24
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded URLs, many of which point to disposable domains and are flagged as potentially malicious or part of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. While no scripts were explicitly extracted, the PDF structure and URL distribution suggest it's designed to lure users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://dugedepap.ru/123?utm_term=dell+venue+8+pro+5830+windows+10+64+bit PDF link annotation
    • http://bumasujofoj.getenjoyment.net/97490499446.pdfIn PDF document text
    • http://mosebuzixat.mywebcommunity.org/can_a_ninja_blender_be_used_as_a_food_processor.pdfIn PDF document text
    • http://newipufisatag.scienceontheweb.net/how_to_make_easy_wood_crafts.pdfIn PDF document text
    • http://bigmagazin.xyz/xipupadivabegigobirujmtk5.pdfIn PDF document text
    • http://pakupuxojopef.getenjoyment.net/67212214310.pdfIn PDF document text
    • https://cdn.sqhk.co/melipetoluf/eCJLphg/subway_surfers_princess_runner_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/pizokifuxe/ibhasia/exploration_definition_in_science.pdfIn PDF document text
    • http://sweetmeet.online/wugejanaduftccmu.pdfIn PDF document text
    • http://yourdesk.website/elements_and_principles_of_art_powerpoint_presentationa1894.pdfIn PDF document text
    • http://warowusavi.mywebcommunity.org/henrik_ibsen_a_dolls_house_movie.pdfIn PDF document text
    • http://jijegak.22web.org/car_plan_agreement_template.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://liraperuwuw.atwebpages.com/traxxas_nimh_battery_charge_time.pdfIn PDF document text
    • https://s3.amazonaws.com/loranoduzuja/lusasetib.pdfIn PDF document text
    • https://s3.amazonaws.com/jirebonudur/are_there_mango_stores_in_the_us.pdfIn PDF document text
    • http://wiwosotu.myartsonline.com/700x_powder_reloading_data.pdfIn PDF document text
    • http://gototura.myartsonline.com/2154205237.pdfIn PDF document text
    • http://tipipigi.atwebpages.com/kogaf.pdfIn PDF document text
    • http://dudolisimak.epizy.com/19697934576.pdfIn PDF document text
    • https://s3.amazonaws.com/xezonijida/android_notification_icon_white.pdfIn PDF document text
    • https://s3.amazonaws.com/xotomisen/arundhati_mp4_video_songs.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_off00010b6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B6A 5952 bytes
SHA-256: 602dfc192403b999dc36b0eec0fe5fe3c1c91c6e0d3b782b4cb73d9351945982
font_01_sfnt_off00011fe0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FE0 10964 bytes
SHA-256: 5238d43d3aca56130a28a328d911b6da45f140f1301d26cfed8ec48820c452f1

Open this report in the interactive analyzer, or submit your own file for analysis.