Malicious PDF — malware analysis report

Static analysis result for SHA-256 11a8b3db1cdaab86…

MALICIOUS

PDF

77.0 KB Created: 2021-04-02 05:56:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 898023cff930ad83b78462c6c0b6c0b3 SHA-1: e6b5267455a6805636ea97c2a34d6ee2c2a9bd78 SHA-256: 11a8b3db1cdaab86bb8a597400e94004bbd086ec24df1ba3b723cad7eebb9a3f
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL, identified by the PDF_URI heuristic. This URL, https://maypoin.ru/aws?utm_term=masters+in+wildlife+conservation+us, is likely intended to redirect the user to a malicious site. The ClamAV detection and ML classifier further support the malicious nature of this PDF, suggesting it's a phishing or trojan delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/aws?utm_term=masters+in+wildlife+conservation+us
    • http://vikolumubibo.scienceontheweb.net/57601345878.pdf
    • http://luranowebereni.22web.org/xopavem.pdf
    • http://stassikorskyi.com/tablero_de_ajedrez_para_imprimirvq5y4.pdf
    • http://rulabepotinujeb.mypressonline.com/ectrodactyly_ectodermal_dysplasia_clefting_syndrome.pdf
    • http://superheatbelt.xyz/what_is_the_best_emergency_food_to_buyv9lme.pdf
    • http://bloomwithdeanna.com/ruzuvejubqojlp.pdf
    • http://netzamka.ru/merge_2048_shoot_n_mergey35wa.pdf
    • http://zodatowafe.getenjoyment.net/craftsman_electric_edger_parts.pdf
    • http://japancar-sib.ru/5th_grade_spelling_words_master_listd179u.pdf
    • http://trokot-tonirovka.online/formule_topologique_dioxyde_de_carbonef0888.pdf
    • http://batmbatm.ru/siwoxebapibupexanala8lnjb.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/85f3c383-df72-460b-8ef9-a8c214ef42d5/midnight_sun_meyer_novel_summary.pdf
    • http://xekapakifujekem.onlinewebshop.net/mathematics_formulas_in_telugu.pdf
    • http://bekonoxidolu.rf.gd/what_are_the_physical_features_of_ancient_greece.pdf
    • https://uploads.strikinglycdn.com/files/f27543a5-0ee1-4f09-8879-2850744e86d3/donald_goines_books_in_chronological_order.pdf
    • http://benamow.myartsonline.com/why_is_there_black_marks_on_my_teeth.pdf
    • http://totefopige.atwebpages.com/railway_announcement_in_english.pdf
    • https://uploads.strikinglycdn.com/files/31271daa-7023-47f5-a3ae-b7ed6690af9c/likunage.pdf
    • http://zerowegujij.onlinewebshop.net/rofimeno.pdf
    • https://uploads.strikinglycdn.com/files/8696eff2-59b5-494c-ab74-a03af773d2d3/lady_midnight_book_characters.pdf
    • http://fataragoreb.myartsonline.com/dakuvibopobiruguvulafu.pdf
    • https://uploads.strikinglycdn.com/files/bd182a17-64e6-4afc-b85d-19e3a5bfb788/how_to_prepare_a_interview_presentation.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f100.bin
ff87ef4448413d2698f238e31f758f4bb58cc4e980e42ab65a3e85a63e92fefd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF100 5172 bytes
font_01_sfnt_off000102c9.bin
cfeb3256caf762038587c3e22f656368a830b5a775b6fb23307e7ffa1efdef27		 pdf-font-stream PDF embedded font (sfnt) at offset 0x102C9 10380 bytes

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