Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeb85649e21c6ef1…

MALICIOUS

PDF

39.4 KB Created: 2020-10-07 04:51:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 9e35f9fc569db79c13e119cbe13ee808 SHA-1: a23cb77fb08044dda0eff5892013126a9ddd0984 SHA-256: eeb85649e21c6ef18814ae8dac4d0811f09fe87a73072ab48ae22bdb70bb816e
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/strik?keyword=san+tropez+pink+floyd In PDF document text
    • http://satefixo.alicelawrancexx.com/uploads/1/3/0/7/130775958/6039672.pdfIn PDF document text
    • http://dugif.sandeepmukkara.com/uploads/1/3/1/3/131380345/juziminanadomofizosu.pdfIn PDF document text
    • http://files.monfortestatesdacula.com/uploads/1/3/1/4/131438418/pikapegusadi-vavuno.pdfIn PDF document text
    • http://lisux.brandonstahl.com/uploads/1/3/1/3/131379699/kijet.pdfIn PDF document text
    • http://gokomer.profile-360.com/uploads/1/3/1/4/131453718/ziroxofuda_zutonofusovas_gejik.pdfIn PDF document text
    • http://tojune.ignite-the-change.com/uploads/1/3/0/7/130740055/c91264ffeea20.pdfIn PDF document text
    • http://files.yogashak.com/uploads/1/3/0/9/130969910/zevuru.pdfIn PDF document text
    • http://files.victorjorge.net/uploads/1/3/2/6/132681836/sujeto-dukowesogip.pdfIn PDF document text
    • http://files.mravinger.com/uploads/1/3/0/7/130738805/lusopun.pdfIn PDF document text
    • http://weguz.theclaylion.com/uploads/1/3/1/6/131636665/lifipotefadiwob_zotujuteri.pdfIn PDF document text
    • http://pobogo.saltyvetco.com/uploads/1/3/1/6/131606396/8144593.pdfIn PDF document text
    • http://files.trevorhook.co/uploads/1/3/0/7/130775823/xunidifizuv-kosetoba.pdfIn PDF document text
    • http://files.safespotwilkes.org/uploads/1/3/1/1/131164473/4f5a25c02f8981.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/ee75f3bb-b083-479b-8cb3-ca79231550bd/53649378499.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78dfd970-919a-4769-933d-d7f8f2db8e9d/14334588773.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b826e38a-f1d5-446d-a650-7073a9a3d0b4/tuwimitijiwupezad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30c8d6b0-b4c9-4bc0-9a07-f53993467eb2/monawaruvowavozimixuve.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7dbda9c-3285-49b2-bf7f-526145274b5c/ragax.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F50 4964 bytes
SHA-256: e739c7862df1b4c990db3151f417f84087bcdee52f148d78fc64c43ed084d035
font_01_sfnt_off00006049.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6049 9996 bytes
SHA-256: 6661fab7679ea9f38933708ac94ee5b6657372af70320f15b74798968ae9e63f
font_02_sfnt_off0000828d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x828D 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333