Malicious PDF — malware analysis report

Static analysis result for SHA-256 55eaa2ee6442a048…

MALICIOUS

PDF

102.8 KB Created: 2021-03-18 13:04:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: e66b30819e82d3a828bf07fd895abc7c SHA-1: 1bd2f0616f2c34550e1596a05afe4d7ac90b8d0c SHA-256: 55eaa2ee6442a04831bf4306e46fe3dcdb6aca5c31eca120ceea4081a9f08585
126 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, contains text related to "Ethiopian film 2017 full movie", suggesting a lure to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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://soxebez.ru/123?utm_term=ethiopian+film+2017+full+movie PDF link annotation
    • http://justamorem.com/nail_salons_open_now_in_my_area30k8g.pdfIn PDF document text
    • http://vanlit.ru/81723812415b58rz.pdfIn PDF document text
    • http://kleomaften.online/pafonizexuwezafulewr2776.pdfIn PDF document text
    • http://unlockdeals.shop/el_modelo_atomico_de_sommerfeldo03p8.pdfIn PDF document text
    • http://digitaloffice24.ru/3901801264895y7n.pdfIn PDF document text
    • http://grinallex.shop/bash_shell_script_tutorial88855.pdfIn PDF document text
    • http://bonifacy.site/vewulevuburimitati5k7xz.pdfIn PDF document text
    • http://silvanozito.online/god_of_carnage_theatre_royal_bath_review4cipk.pdfIn PDF document text
    • http://straponartist.com/elementary_information_security_2nd_edition52nhu.pdfIn PDF document text
    • http://opros.xyz/441182110450xg5t.pdfIn PDF document text
    • http://steh-sistem.ru/anthocyanin_structurezjwul.pdfIn PDF document text
    • http://butadulolem.22web.org/wordpress_website_tutorial.pdfIn PDF document text
    • http://robolab.one/best_waffle_maker_to_make_chafflescg27e.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/e716a6d1-2b5b-4376-abb9-cf4e5c6ed973/telilepone.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc240ed4-1707-4bd9-99cf-581366e4a15e/trials_of_apollo_book_2_google_docs.pdfIn PDF document text
    • http://verulufana.rf.gd/34720103592.pdfIn PDF document text
    • http://suwojubomitela.epizy.com/soxipomavarurasedu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd1cbc1c-0735-4e9b-ad2d-2f77879b20e0/mejores_frases_de_el_monje_que_vendio_su_ferrari.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2147ccdf-87b9-44f8-a4cd-e26f85f57bb1/xavikavevak.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a649e4ef-6d43-47fd-b0c6-cf2e9e7d5a41/99915355476.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d081601d-eb4f-4e15-80a1-a5c18e9df565/the_vampire_diaries_svg.pdfIn PDF document text
    • http://nawopezor.rf.gd/7195586921.pdfIn PDF document text
    • http://wajufuful.rf.gd/catcher_in_the_rye_chapter_summary_13.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e23f144-f66b-4723-a155-29f6a7ca0257/88960444273.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e009.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE009 45616 bytes
SHA-256: e2f79fc20afe328869d488af643c4fb6b93864c58e5b2630eca38342c69b6186
font_01_sfnt_off0001568d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1568D 5288 bytes
SHA-256: d3349136c0c28f9c964b20c51ab8100e9b1b68dc7239354173b6bc93adf4fdbe
font_02_sfnt_off00016882.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16882 10876 bytes
SHA-256: 8f3debb8fa1a0da6dfb2f054fe295b1e5af8d33714dc0cdef977829e21849f95