Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd56dd47a2df4d16…

MALICIOUS

PDF

108.6 KB Created: 2021-02-13 03:59:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: a61512041befdb6952aee0cf8c1f7722 SHA-1: 36f65d7737107d47eee785664751944fd8e7d112 SHA-256: cd56dd47a2df4d1606238d82a51db1537a4a9c85854545a39dd5d75ace3f9868
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that directs users to a website with a keyword related to a school tennis team, suggesting a phishing or social engineering lure. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing campaign designed to redirect users to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://seumenha.ru/wix?keyword=lone+star+middle+school+tennis PDF link annotation
    • http://nibelv.xyz/monstrous_races_dnd_5ei3yvj.pdfIn PDF document text
    • https://ginadilu.weebly.com/uploads/1/3/4/7/134768391/nadibuwebivolor_nomapoj_jobota.pdfIn PDF document text
    • http://the-job.ru/mularuzigulepagomozilipxq69i.pdfIn PDF document text
    • http://idealica-columbia.site/batik_coloring_book_by_number_color_therapyxd3eq.pdfIn PDF document text
    • https://safusugefivelu.weebly.com/uploads/1/3/4/3/134346528/gemitowufokumobiwibu.pdfIn PDF document text
    • http://momentshop.space/big_fish_a_novel_of_mythic_proportionsseh58.pdfIn PDF document text
    • https://voxudipuxun.weebly.com/uploads/1/3/5/3/135319737/8097ce7.pdfIn PDF document text
    • https://buderenedisam.weebly.com/uploads/1/3/5/3/135302361/ccfcdc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vidadaviwal/antithrombin_deficiency_guidelines.pdfIn PDF document text
    • http://pogifovemujure.epizy.com/borderlands_3_flak_skill_tree_guide.pdfIn PDF document text
    • http://bikikifuxax.epizy.com/hollywood_reporter_daily_newsletter.pdfIn PDF document text
    • http://fiwixowu.rf.gd/piriformis_muscle_compressing_the_sciatic_nerve.pdfIn PDF document text
    • http://gafigozigu.epizy.com/nesoresi.pdfIn PDF document text
    • https://s3.amazonaws.com/netinuwa/excel_balance_sheet_template.pdfIn PDF document text
    • https://s3.amazonaws.com/wuzalugiseto/ethiopian_reporter_news_english_version.pdfIn PDF document text
    • http://sujetokotew.rf.gd/toccata_and_fugue_bach_piano_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/regegozumekoza/sslc_model_questions_and_answers_2019.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010c70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C70 19876 bytes
SHA-256: e44b3019c777c4dc22d1dbbdf827c0c777e49098b38c1c6a832066b515a150a7
font_01_sfnt_off00014b44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14B44 5120 bytes
SHA-256: b7d60290f082ccf3de715ce801f8db2cb3e646528dc2554875063a9d37ffab97
font_02_sfnt_off00015c7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15C7F 16292 bytes
SHA-256: 98aeaa62129118f617263c029e27d003c30e2381dfa85d0581dcf20aad195956
font_03_sfnt_off00018fbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18FBC 16036 bytes
SHA-256: 35d3440dae1ebc896564e4e6f70ea95aa3a30a1ac603c7fffbb21b68b8b72e2f

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