Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a2dbecfe31bc1f9…

MALICIOUS

PDF

47.0 KB Created: 2020-10-14 17:59:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: a137bb44d645b6c0c54b71e0d4467a5c SHA-1: 6037ed551998a87cf22529add6d753e34d4a2410 SHA-256: 1a2dbecfe31bc1f92f4bd89a8ff1af8d4257a4a6617483b1caf9258442961f54
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://ttraff.link/pify?keyword=you%2527re+beautiful+chords+pdf In PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/7304884.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/665612.pdfIn PDF document text
    • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/bf4458.pdfIn PDF document text
    • https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/zuvekazabuz-topofelo-gupolekodojavo-ponabiloxe.pdfIn PDF document text
    • https://site-1039633.mozfiles.com/files/1039633/38311451150.pdfIn PDF document text
    • https://site-1048482.mozfiles.com/files/1048482/96497943185.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/fb46723b-861b-48aa-890b-9db227c0f2aa/33777132114.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e595fc7e-66e6-45b6-aa6c-c3fce4523b15/sejasamaxakumuze.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1bf66893-1908-4a66-8b08-f3ebaa65be01/40343076355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/8979/6513/files/43859972075.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6987/5111/files/60520654066.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4517/5971/files/two_way_frequency_tables_powerpoint.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c4141dca-b5cc-4783-a28c-5fa997375861/47350842494.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/655fdb4f-d9ea-451a-bddb-50ed5daec4a6/javobapekoxewidozogiguma.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f2924a1-f88c-4d4f-a5d8-4750e07a8d25/14997788471.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/913e92e1-a36a-4731-8f7b-751ce53ee268/93578626336.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9cee8fcb-7a47-4193-ba74-644f19f5ec3d/popozikamoriwadilinen.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da58dbcc-7f00-4d45-83a4-87d1922f0bdd/14959666509.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e0c84451-4030-4d77-996e-d6cb20fe0346/80447792821.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006af4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AF4 5376 bytes
SHA-256: 815f7d806ce80ae1d6ed445b10119ca83abdcef98da7fbf4af0f2bd7349ea50f
font_01_sfnt_off00007d37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D37 15488 bytes
SHA-256: 48d93c3851e63e81de9171d190f641a341c1329723ce093928c76f94cd10f012

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