Malicious PDF — malware analysis report

Static analysis result for SHA-256 287931844082c375…

MALICIOUS

PDF

39.3 KB Created: 2020-10-03 02:51:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: f0ccf70502bfb1a5a22a132a4a3ed478 SHA-1: 7dfc595f8b4a7a5b258478e8645a89f6d5bd77da SHA-256: 287931844082c375cb2233496b10f6987f741544c8d77b466567806b8e95f38d
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://gettraff.ru/pify?keyword=target+field+concert+seating+view'. This indicates the document's primary purpose is to trick the user into visiting a malicious URL. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of embedded URLs and the redirector link strongly suggest a phishing or malware distribution 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://gettraff.ru/pify?keyword=target+field+concert+seating+view In PDF document text
    • http://jitib.pilgrimsrestbattle.co.uk/uploads/1/3/0/7/130738786/2381022.pdfIn PDF document text
    • http://files.carolynlaine.com/uploads/1/3/0/8/130874192/9439414.pdfIn PDF document text
    • http://files.reaassociates-blog.com/uploads/1/3/1/8/131871907/2eeceae3a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/614fb49a-4667-41bf-8324-7a38e5561bb8/keduzejo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5620ed9-b4d4-4ae3-8277-37b9f5c92d31/85030046938.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c06a67b4-d1fc-4ac8-b381-72525694d970/geteporixenituwenebeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2307/2412/files/92369517051.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5269/3669/files/vefub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1907/4716/files/glass_tube_cutter_nz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c374089-8bd8-4ad6-960b-735fcccb1cb1/regupugepu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c83756f-b27e-4a95-bff4-5d1c04d28255/tabudapajotimina.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5eb3ae5-784a-44a3-891e-4232ae089189/74699842996.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_off00005bd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BD2 5292 bytes
SHA-256: 46705b65c4b6d025d875ea53ee05ba6fb6243ad84b5ff4a274ce8444f6b291f3
font_01_sfnt_off00006df6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DF6 10012 bytes
SHA-256: d30056625d30f7a13c629b3c166988f5e3b50da6c81bb20c9ff5730f925a5cf5