Malicious PDF — malware analysis report

Static analysis result for SHA-256 26999f57ccdc8ee0…

MALICIOUS

PDF

38.0 KB Created: 2020-11-04 06:31:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 31ddef4985d2446dd1a3eba27bad4d18 SHA-1: 566c3a5dc2bc38ea7e12006cd61d94888e092281 SHA-256: 26999f57ccdc8ee08a59e47101e1978add933e8ec9fbd173eafe3e5069259e07
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL, https://gettraff.ru/123?keyword=2013+kia+sorento+sx+manual, is the primary indicator of malicious intent. While no scripts were explicitly extracted, the PDF structure and the presence of a malicious URL strongly suggest a phishing or malware delivery attempt, likely initiated via a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://gettraff.ru/123?keyword=2013+kia+sorento+sx+manual In PDF document text
    • https://poxusesemeli.weebly.com/uploads/1/3/4/4/134462398/546a36bcc3096f0.pdfIn PDF document text
    • https://xoraxabaxid.weebly.com/uploads/1/3/2/6/132682630/8131429.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/welanisowari/writing_task_1_general_ielts.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/89843011-e699-43f1-b998-3d043611a8b4/marketing_para_o_seculo_xxi.pdfIn PDF document text
    • https://s3.amazonaws.com/xunilukegez/cast_sequence_macro.pdfIn PDF document text
    • https://s3.amazonaws.com/fazujo/55336141770.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9918872d-58d8-4ab8-81a1-247377e0d477/kowumevafureba.pdfIn PDF document text
    • https://s3.amazonaws.com/degagaziv/motor_medic_motor_flush_directions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f264563-9190-43cb-988d-1aae581b632a/73077660191.pdfIn PDF document text
    • https://s3.amazonaws.com/dejolavubukugeb/dajiwamuzoxozidufitos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02543cd9-2ed0-4f3a-81bd-a235f39cbffd/torture_stick_game.pdfIn PDF document text
    • https://s3.amazonaws.com/sakaburepagase/2216180416.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9ff2134-f0da-467b-83c5-b83c3a431ccc/5e_staff_of_swarming_insects.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/422d8c20-a7cb-4707-9369-f7edab5433b1/vazinepa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0e466cc-04e8-479a-bdde-0fb74a7399bd/3660849328.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_off000054af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54AF 5360 bytes
SHA-256: c97020281f58ac55a8852e70a56f781daf6f9e9451649a7a00768b2cde3dfb7c
font_01_sfnt_off000066d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66D9 10728 bytes
SHA-256: 932d0efeedc1c0f606957fcdc2d83839cb0d252acfa10e8c799d15c8bfe21718

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