Malicious PDF — malware analysis report

Static analysis result for SHA-256 2eae965008ff3c4b…

MALICIOUS

PDF

84.4 KB Created: 2021-03-27 21:36:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: e896056032c7fbbcc37d0c54fe0028f2 SHA-1: fa0cca4c5a5ea33b71b930cc0f4a2fba5cd55dc4 SHA-256: 2eae965008ff3c4bcf89372c045e09ac4accee0636b1eb71ff2a7ba4598c4fea
126 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by a machine learning classifier and ClamAV. It contains numerous external URIs, with the primary one being 'https://maypoin.ru/award?keyword=alphabet+phonetique+anglaise+pdf', suggesting a phishing or scam attempt disguised as a search result. The PDF structure and embedded links indicate it's part of a link farm designed to redirect users to potentially malicious content.

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://maypoin.ru/award?keyword=alphabet+phonetique+anglaise+pdf PDF link annotation
    • http://tepoparupomo.medianewsonline.com/zelda_ocarina_of_time_music_piano.pdfIn PDF document text
    • http://goldalbum.ru/what_does_arrow_gpi_meangi6mo.pdfIn PDF document text
    • http://whitecheat.xyz/how_do_i_program_my_verizon_remote_to_my_samsung_tvcbwau.pdfIn PDF document text
    • http://constructionhouse.info/assistant_director_jobs_daycaretpidd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455380/normal_5fcdc6313e2a4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445731/normal_601473a1e2d1b.pdfIn PDF document text
    • http://mopexaxurip.getenjoyment.net/how_to_run_flash_player_in_chrome_after_2020.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/b1639bf3-26ef-411d-af6b-517e33450cff/what_baby_poop_tells_you.pdfIn PDF document text
    • http://nebojemesiwi.atwebpages.com/cae_gold_plus_exam_maximiser_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/88a59106-49ee-4338-93c9-49298425dee6/94806505539.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3fb5476-7e46-46da-94dd-2ac1c83980cf/duracell_750_jump_starter_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f228ef6-f4b4-428c-886d-c24ef057e437/possessive_nouns_worksheet_grade_6.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2be9ec6-6013-4253-8c92-39eafd4289b3/puzadimukavazovoxerud.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c481bffa-b6be-41b6-b18e-72b4d4109a74/nokenegigonokegi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ce321228-0e5c-4cd3-8d27-c21b99b109a3/spell_bee_test_for_grade_6.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5efd0173-d437-4f73-b915-7bd8b7315eaa/xiwinokerivekogin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f362cb26-2337-475b-9dd7-20e1303c0bb3/super_mario_3d_land_walkthrough_world_2-3.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9eced846-1409-4892-ad1a-9b28217d9973/pathfinder_wrath_of_the_righteous_beta.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da6a94bd-1c8d-4cd0-8123-eea96d956e85/salary_of_aircraft_mechanic_in_dubai.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48ad3b56-a776-441b-950e-7ab732e6c287/resumen_del_libro_etica_para_amador_completo.pdfIn PDF document text
    • http://zonafikepejese.onlinewebshop.net/21_cfr_part_11_fda.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_off0001007d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1007D 5464 bytes
SHA-256: 2b6949004265a29244010402fabcc88122a6a3639d355279f95e4d29779ec692
font_01_sfnt_off00011302.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11302 14916 bytes
SHA-256: b7e7ae669191c9e795ff3be194c25b3e9c82228630d4ada0609a33538575deec