Malicious PDF — malware analysis report

Static analysis result for SHA-256 9582d650e6294b5d…

MALICIOUS

PDF

75.3 KB Created: 2021-05-12 18:35:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 55ef8c7db08bb9310b8feb5058e68b3e SHA-1: 609585167a250ab2bb6feff157a10acea0a01fdb SHA-256: 9582d650e6294b5dd2a7ac5452577a6ff6ccd891e1a9ed6c17468b2ae3893123
96 Risk Score

Malware Insights

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

The PDF file contains embedded URLs, one of which, 'https://fokemale.ru/strik?utm_term=journal+topic+ideas+for+high+school', is flagged as external. The ML classifier and ClamAV detection strongly indicate maliciousness, with ClamAV identifying it as 'Pdf.Phishing.Trojan'. The document body, though heavily obfuscated, suggests a lure related to 'journal topic ideas for high school', likely a pretext to drive users to malicious sites.

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://fokemale.ru/strik?utm_term=journal+topic+ideas+for+high+school PDF link annotation
    • http://verefdliyvtorogo.xyz/99039572034j3dqn.pdfIn PDF document text
    • http://hookup756.fun/perform_row_operations_augmented_matrix_calculator3uvg8.pdfIn PDF document text
    • http://habercigo.com/560483004150cyvk.pdfIn PDF document text
    • http://duwinijuj.mypressonline.com/jegozaxebeburugosiliwoj.pdfIn PDF document text
    • http://indital.space/nusagojij8vyp0.pdfIn PDF document text
    • http://coupons2020.info/puduzosanesuwukaseju1d1ly.pdfIn PDF document text
    • http://creditinquiry.info/images_animated_cartoon_characters_freefo60i.pdfIn PDF document text
    • http://riwotivadejud.sportsontheweb.net/why_no_more_black_books.pdfIn PDF document text
    • http://msertis.xyz/doorbell_sound_ringtonebxkyf.pdfIn PDF document text
    • http://rbqjkwklnd.xyz/xenoziwexowoberans1v8u.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/tuletivotarupu/metformin_hcl_mechanism_of_action.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7a6aa41-9714-417f-8485-86c3d3a83d31/48690644608.pdfIn PDF document text
    • https://3a5aa097-47f9-475f-9992-83bceef25cc3.filesusr.com/ugd/f55bec_f102b7e6a037416d885f9a1cf5f777b2.pdf?index=trueIn PDF document text
    • https://ec679cc6-872a-45a8-b2fd-b1bc8f6ddb77.filesusr.com/ugd/d1d005_7106e5be662440df93d2dddfe86aa48e.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/pulujolatepuv/how_to_start_a_pawn_shop_in_florida.pdfIn PDF document text
    • https://s3.amazonaws.com/paxunu/56908324560.pdfIn PDF document text
    • https://s3.amazonaws.com/muxegeza/titipomuj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c751d7df-226c-40db-b547-eda5c0f82963/70483255047.pdfIn PDF document text
    • http://sadoboxijowem.myartsonline.com/agriculture_future.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f057d0ca-2353-4b49-b928-d661bc0cc551/kufow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6aad34dd-dd86-49bc-b22b-4003912ed0c2/how_to_reset_linksys_range_extender_to_factory_settings.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ced0026f-f175-4c58-922e-31178058728f/51009542026.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_off0000e983.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE983 5408 bytes
SHA-256: 62149ae8c33e145f7477370333148bd61c4e6af8c82c62d6792204672ea8b02a
font_01_sfnt_off0000fbde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBDE 10424 bytes
SHA-256: f15d2c06b06fa28027ebf0653f10d44b516d1a8ea6fb8c4f62a0419f84e26053

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