Malicious PDF — malware analysis report

Static analysis result for SHA-256 d199c93d83038bda…

MALICIOUS

PDF

75.8 KB Created: 2021-04-08 10:08:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e841f6760f05b6cba9349fdabcf4486b SHA-1: ea01570b532c206779c382859de128e3fc5d0882 SHA-256: d199c93d83038bda6c3147c841b3bbe8c3eb13d39c52c45a620f2e2239422fd2
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, disguised with a lure related to 'Baldur's Gate 3 multiplayer save'. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware delivery. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest an attempt to exploit users through a deceptive link.

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://nipisod.ru/strik?utm_term=baldur%2527s+gate+3+multiplayer+save
    • http://sipipewawezizuf.getenjoyment.net/maharashtra_board_11th_biology_textbook_download.pdf
    • http://reborasiruv.iblogger.org/most_common_idioms_worksheet.pdf
    • http://tuvoreda.scienceontheweb.net/88626536319.pdf
    • http://jafebidit.getenjoyment.net/aws_certified_solutions_architect_study_guide_2nd_edition.pdf
    • http://lodorobirat.22web.org/96708642109.pdf
    • http://sabovibin.medianewsonline.com/98488802881.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://kidaxuv.epizy.com/61668893615.pdf
    • https://s3.amazonaws.com/pobixedele/jabusowewokitu.pdf
    • https://a7176590-a44a-43b4-8b25-1171fb6190ac.filesusr.com/ugd/e6ccb8_7f71b2119233454ea2d8c824f4529242.pdf?index=true
    • https://6ada6c45-9e8d-4063-9633-40b9e375d9b0.filesusr.com/ugd/9a7afa_7764caeeba6e4db9b8b75e182909daf3.pdf?index=true
    • https://uploads.strikinglycdn.com/files/be938f68-8a73-4281-a45a-9c8e43e3b400/15729961941.pdf
    • http://tonezifimoraga.epizy.com/73876257672.pdf
    • https://s3.amazonaws.com/xazarujokemus/2462819384.pdf
    • https://s3.amazonaws.com/wotodedaruzuk/telugu_movies._com_2018_hd.pdf
    • https://s3.amazonaws.com/tonisefoteka/the_education_of_little_tree_rotten_tomatoes.pdf
    • https://uploads.strikinglycdn.com/files/7d57f169-cfbb-48f0-89db-2df10e07161a/60691063460.pdf
    • http://vetavewolo.epizy.com/comment_installer_des_camera_de_surveillance.pdf
    • https://uploads.strikinglycdn.com/files/410f9977-8848-4a29-971c-fb012ba6fe82/reflecting_on_the_bell_jar_pat_macpherson.pdf
    • https://uploads.strikinglycdn.com/files/3a785134-f3a7-43f8-97e0-b3e9c0d22d39/types_of_views_in_a_drawing.pdf
    • https://394fded3-a37f-45fe-8092-07e0884d2d31.filesusr.com/ugd/bdbc91_886a7392f59b4dcf98ddffd68944cf8c.pdf?index=true
    • https://uploads.strikinglycdn.com/files/3a6d0037-6876-4020-af8c-50d96881b720/50785247788.pdf
    • https://uploads.strikinglycdn.com/files/ccc04137-e921-423e-9e72-33f0fe73dd0f/shadowrun_6th_edition_core_rulebook_review.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_off0000e6aa.bin
505c5d1eb864f15fe8af74bf8c87f3f9225b744dbbde1ff5d1036608ea7372de		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE6AA 5688 bytes
font_01_sfnt_off0000fa0a.bin
2363ca4a143cfd620b02022036b178bab3faf2f78bf34de0717aa62a1652aa68		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFA0A 11064 bytes

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