Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce0162a253a84eb0…

MALICIOUS

PDF

67.7 KB Created: 2021-03-17 01:08:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 32820dcf5a592318b9f235d65ea7a31e SHA-1: 6fd3c4d1b14dcaf258cfc0f4ba2cb90677668cb0 SHA-256: ce0162a253a84eb0c2b11737889355a629223987e0c8248cb37bb904ceb1f5f9
126 Risk Score

Malware Insights

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

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains numerous embedded URLs, many pointing to disposable domains, and is identified as a link farm. The presence of external URIs and the link farm heuristic suggest the document's primary purpose is to redirect users to potentially malicious websites, likely for phishing or malware distribution. No scripts were extracted, but the overall structure and URL distribution indicate a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://jottigo.ru/wix?keyword=adl+sniper+stats+ragnarok+mobile PDF link annotation
    • http://zizodoroluxonaf.sportsontheweb.net/55995717490.pdfIn PDF document text
    • https://cdn.sqhk.co/lojibuwe/ge5jJtv/human_gangs_epic_battle_simulator_mod_apk_revdl.pdfIn PDF document text
    • https://cdn.sqhk.co/dowufagit/Oecmif5/vujawutifafifivib.pdfIn PDF document text
    • http://delinapod.mypressonline.com/86418000226.pdfIn PDF document text
    • http://biwedujurar.mywebcommunity.org/plant_ecology.pdfIn PDF document text
    • http://konifipajig.iblogger.org/do_you_need_barista_experience_to_work_at_starbucks.pdfIn PDF document text
    • http://jefekowij.iblogger.org/how_to_restart_your_ac_unit.pdfIn PDF document text
    • http://sutarakikim.scienceontheweb.net/honeywell_xenon_1900_driver.pdfIn PDF document text
    • http://lenugaguv.medianewsonline.com/where_can_i_donate_mens_suits_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/datawafag/QiagcXG/62442852309.pdfIn PDF document text
    • http://tizisewe.22web.org/1001_problems_to_master_algebra.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gametasixomuk.epizy.com/gymnopedies_2_sheet_music.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/987a0b61-c6f5-4031-8d9a-af2e6fb0eb17/59481852825.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b4676f08-d67c-46e3-8810-e6c9cf79e7d2/resumen_del_capitulo_15_al_20_de_cien_aos_de_soledad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52fb5d53-ab52-4645-8511-53c4115a8f93/28404021423.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3b481af-9129-40a5-b12b-7aa258d89578/xubibas.pdfIn PDF document text
    • https://s3.amazonaws.com/vatosolikijike/18329667186.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2db0a70d-83c9-4229-a0a7-b9e48652c3b9/how_do_i_record_dividends_in_quickbooks.pdfIn PDF document text
    • http://biwovake.rf.gd/macbeth_graphic_novel_quick_text.pdfIn PDF document text
    • https://s3.amazonaws.com/juzewojavomofew/casio_wave_ceptor_titanium_sapphire.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d13360e-f01c-46b1-a80a-77ecb7fd82e4/basic_mechanical_engineering_questions.pdfIn PDF document text
    • https://s3.amazonaws.com/genedesowul/gijigaxilakojonawaxer.pdfIn PDF document text
    • https://s3.amazonaws.com/gurupixabogivaz/itil_v3_vs_v4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/788d8618-3023-4fd9-ad6d-84903e02f2bb/best_workout_routine_for_massive_gains.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_off0000cc35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC35 5472 bytes
SHA-256: 67db8dbad5005ca3accff1bceb1d15deb4b95b9e097f84991a59da6359c822d9
font_01_sfnt_off0000deb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEB9 10284 bytes
SHA-256: 5dd9568eb43bc11c6d42d32a2541858c7220b91db67032db8ac094649697cbeb