Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ba22d29de2917d0…

MALICIOUS

PDF

75.5 KB Created: 2021-03-26 05:41:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 8f7874d8edeab99efe4e51b5b080df5f SHA-1: 3f0c90926d717616871ee284cb6038ed1ab85aa2 SHA-256: 1ba22d29de2917d03b5f948d63cd32b7618cbff35ad3cf44719e4260ea970a1b
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains multiple embedded URLs, with a primary focus on directing the user to 'dugedepap.ru'. This URL is presented in a context that mimics a search result for a common technical problem, suggesting a phishing or scam attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://dugedepap.ru/strik?utm_term=why+is+my+sony+tv+blinking+red+6+times PDF link annotation
    • http://arenaprobet.com/85503097559gkdjz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453336/normal_5fe52a8d13d28.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485813/normal_603953e6ca86a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420910/normal_603abd3c2c082.pdfIn PDF document text
    • http://usacreditcheck.info/beguiling_affix_guideutc3c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379471/normal_600f35d3dbf2e.pdfIn PDF document text
    • http://optarfes.com/tissot_t_touch_expert_solar_titanium_manual7umle.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450731/normal_5feb4e6e34a39.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/27a7a694-cead-413d-81ee-724e59da6f76/how_to_cure_hormonal_acne_at_home.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f85289b-b3ff-493d-aaa8-04a9df323ae6/chariots_of_the_gods_first_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bac1458a-08c0-4b8a-a480-2cb27b471d9f/kibosiguvixokutunemelumos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08cb0bbc-2230-4c0e-b9fe-5e17860d2cd7/what_did_modern_scholars_study_to_help_them_decipher_hieroglyphics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40208d63-75cb-42ad-94ee-410b9b91a85b/oxford_house_tyler_texas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/adf8e6c1-670a-4c1e-a0ca-b4e1bf5e4963/sears_air_compressor_owners_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39ab4c9e-325c-496d-934c-ee8bd111e718/what_is_landscape_photography_definition.pdfIn PDF document text
    • http://juzavinozil.epizy.com/platformio_esp32_wifi.pdfIn PDF document text
    • http://pemukusa.epizy.com/adani_green_energy_annual_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/92f86f8e-e965-44eb-91a5-7c9641e69d76/61650741138.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52ebf765-0bb1-47fb-9bad-a97ec40c4fc4/world_war_z_2_full_movie_watch_online_in_hindi.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_off0000e947.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE947 5564 bytes
SHA-256: 3c4ff582ece2670e70170e5dc5f19d4c665442d98e59bba94e0d7690138e6973
font_01_sfnt_off0000fc1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC1D 10972 bytes
SHA-256: 72ebb30e291edd5064b58efcf9bb846546d4e7bf0ebf520eafeb9a26c602f10f

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