Malicious PDF — malware analysis report

Static analysis result for SHA-256 5142f0eb23c2ca9f…

MALICIOUS

PDF

48.4 KB Created: 2020-10-14 20:33:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 2591c3eef7df2a2347aacfa5515868a3 SHA-1: 91f1ce19f02ffe2fb60e3c528a2d4c70fd17af24 SHA-256: 5142f0eb23c2ca9f26ec29d0adb5d176b0707dd1dbd7b7424d5ef4a794c6ef85
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://ggtraff.ru/123?keyword=intrusion+detection+system+project+report+pdf In PDF document text
    • https://vuzevarezevarot.weebly.com/uploads/1/3/0/7/130740461/8108700.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/297c0.pdfIn PDF document text
    • https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/4140341.pdfIn PDF document text
    • https://site-1038382.mozfiles.com/files/1038382/43225891616.pdfIn PDF document text
    • https://site-1043669.mozfiles.com/files/1043669/bidenesosuzasutif.pdfIn PDF document text
    • https://site-1039817.mozfiles.com/files/1039817/49262086095.pdfIn PDF document text
    • https://rakamukomegu.weebly.com/uploads/1/3/2/6/132681656/53e41d8972de40.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/kekikefuwu.pdfIn PDF document text
    • https://xojisige.weebly.com/uploads/1/3/1/6/131637148/zemokivajuf.pdfIn PDF document text
    • https://tavumake.weebly.com/uploads/1/3/2/7/132740551/suvex-xebubonozov-gavubukegago.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/zikarab.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/85f8b752-8552-4da7-8621-fa1fd02c3437/86393217427.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97f5eac5-23fc-44aa-90eb-1785213ed903/9573492128.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d353190-a0d9-4ab3-b9d4-a28bfcb157f1/74650906581.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b92ed4e2-f268-4723-93d5-1a03ecba65d1/72025724892.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1973efc-7902-4a45-89ac-4b97c51e283e/luwir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/710819c9-56de-46a6-bdd8-157e60463410/65593592463.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58bedde0-5764-4332-9cd9-bbc291cff922/sufoxazumipuwejedebidito.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7b85bea-766d-4c84-ad65-d09a8d2463b3/62270666606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/7813/9035/files/klaus_vampire_diaries_last_appearance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/3256/2840/files/daniel_ramirez_san_antonio.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/2453/4680/files/kafosisozuratajotaralep.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_off00007bfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BFC 5172 bytes
SHA-256: 97a19a2eb797d0218bba347f8918ffa222a279d19b8f6cda2a19c774ba44580f
font_01_sfnt_off00008d91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D91 10764 bytes
SHA-256: 870f2c94b72e19b57726347074a0946cbf75f20d64d863d246fedc8114ae08ba

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