Malicious PDF — malware analysis report

Static analysis result for SHA-256 48889c0bd1660ea2…

MALICIOUS

PDF

55.0 KB Created: 2020-11-03 19:16:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 8de3e369dd81c26e117c96e5d1befd91 SHA-1: 281d74d82be2545c71ae548c4f6f62c1f4dd1a16 SHA-256: 48889c0bd1660ea28c76c1d37cea84976d2880e97efdbb9148555022f7824da9
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://cctraff.ru/123?keyword=wauseon+exempted+village+school+district, is the primary indicator of malicious intent. While no scripts were extracted, the PDF structure and the malicious URL strongly suggest a phishing or malware delivery attempt.

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://cctraff.ru/123?keyword=wauseon+exempted+village+school+district In PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/ratefunerod.pdfIn PDF document text
    • https://kupugaxome.weebly.com/uploads/1/3/0/9/130969415/zubobaratezodojuleri.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402720/normal_5f915ec50abaa.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/bivanud/unblocked_games_24h_papas_freezeria.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a8b82a9-4cbf-4731-99d9-810d82b9e3dc/23112619181.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/epidural_anesthesia_procedure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8972/2534/files/waffen_ss_uniform_vs_wehrmacht.pdfIn PDF document text
    • https://s3.amazonaws.com/dazutun/scotts_turf_builder_dlx_spreader_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/palikuvexake/garazizuvekegixozin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/00c55a60-f80d-456e-8c24-403329aa727c/17716667432.pdfIn PDF document text
    • https://s3.amazonaws.com/dibedamoka/lavedapozoledusonape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/5570/1927/files/no_internet_connection_message_android_studio.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_off00009685.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9685 5628 bytes
SHA-256: c800775c1b765684ef04e99e034e196b70e23d0cf7dad07d07602bd96e6ab8f1
font_01_sfnt_off0000a996.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA996 10908 bytes
SHA-256: 72bb3d31f4bc34dc19be30955e900a34c3972dfcb4fbed2b50dc1f9dcbaf9d86