Malicious PDF — malware analysis report

Static analysis result for SHA-256 5deeaded8ddcdc31…

MALICIOUS

PDF

84.9 KB Created: 2021-03-31 14:41:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: e3a048f82a7fc567eb0473e8d7b196bf SHA-1: 80d9519ffd25b334b592ecf45d3fef3dfe9852d2 SHA-256: 5deeaded8ddcdc31aab7b9fe31a9f1fc095e6fa4f6daa7e833e3dafe060e236e
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • 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 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://crophysi.ru/strik?utm_term=how+much+does+it+cost+to+get+a+rabbit+neutered+uk PDF link annotation
    • https://kodivowu.weebly.com/uploads/1/3/4/3/134360374/da6b57a5d.pdfIn PDF document text
    • https://fopezifu.weebly.com/uploads/1/3/4/7/134717551/libakuxul-dokine-zafenej-xodejij.pdfIn PDF document text
    • http://pegijegur.mygamesonline.org/comma_practice_worksheet_with_answer_key.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412778/normal_6021fe66e3a73.pdfIn PDF document text
    • https://cdn.sqhk.co/ganuniwiku/iepKVyx/mr_bullet_gameplay.pdfIn PDF document text
    • https://numeroluxovuz.weebly.com/uploads/1/3/4/7/134733954/lugofezetelin.pdfIn PDF document text
    • http://walolexokesufa.sportsontheweb.net/duludaporige.pdfIn PDF document text
    • http://lixorajepidil.mygamesonline.org/mit_computer_science_reading_list.pdfIn PDF document text
    • https://namevixezevir.weebly.com/uploads/1/3/0/9/130969021/zijunajeva.pdfIn PDF document text
    • https://cdn.sqhk.co/gulifunanale/idligjd/best_scummvm_games_android.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373997/normal_600a041c7a210.pdfIn PDF document text
    • http://towufato.mywebcommunity.org/hoe_beveiligd_afdrukken.pdfIn PDF document text
    • https://cdn.sqhk.co/rivotoxupow/NyijXGv/grass_cutter_machine_repair_shop_near_me.pdfIn PDF document text
    • http://pakupuxojopef.getenjoyment.net/what_girl_names_mean_fire.pdfIn PDF document text
    • https://cdn.sqhk.co/kujufemom/eIjaNDS/formula_drift_ride_along.pdfIn PDF document text
    • http://rezisekuvaz.mypressonline.com/beverage_cost_control.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac9f8ba1-0934-4e3a-aeae-c6a5dfbb4670/xowoturewelalowugifa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b65c7869-41c1-46db-8f76-35d74e446cb9/34922452745.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc4a979b-b725-4a40-9c47-8ed2d579c592/best_madden_20_playbooks_for_sim.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eaeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAEB 5576 bytes
SHA-256: 843d4b09a9c071c5a51fcb478cb0eed6c3f3ea1dad305f4897262f9da2a5b608
font_01_sfnt_off0000fdbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDBB 2528 bytes
SHA-256: fa00ca2efb3740422adce526fcbaa5037a21e39b9482affa9e7d95016e3f9ad0
font_02_sfnt_off000108eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108EB 11160 bytes
SHA-256: 0ea90df9dbb5d51287d07314fd7b3df45134266f947caa0115459aeb03550d88
font_03_sfnt_off00012f3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F3E 16544 bytes
SHA-256: 49230a07578f2a0b108554ff1d47b1cb24b8f8081254bad551c0ce72ea05e0a5

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