Malicious PDF — malware analysis report

Static analysis result for SHA-256 c02c70af12a2207f…

MALICIOUS

PDF

49.9 KB Created: 2020-11-06 21:01:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15
MD5: 7fed4abd1ee69ce14f04ddaca9c630e4 SHA-1: 164021dca8ad7a171afb8272aa16613bbb05cd2e SHA-256: c02c70af12a2207ffd556b9d7adbfd521e3bb7e748ca13cb3171b273b008e442
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://cctraff.ru/aws?keyword=christmas+plexers+puzzles+and+answers In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365626/normal_5f894d25df2c4.pdfIn PDF document text
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/jedewadizuzogez_supoxatarisi_kisoxafonopetes_zesikerurug.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://mutozofe.files.wordpress.com/2020/11/67728004733.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f47a5378-1fa8-4651-9430-0f3d3e00c698/60511409244.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/338c0b81-d532-462a-88f3-2378890b4ff8/de_lo_peor_lo_mejor_auronplay_descar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7de989b8-3d9f-46f5-98d5-5fa78b45203f/tikonuritujawal.pdfIn PDF document text
    • https://vadazigifexe.files.wordpress.com/2020/11/merozasopegujibe.pdfIn PDF document text
    • https://dusurujadexo.files.wordpress.com/2020/11/torozinupidofex.pdfIn PDF document text
    • https://pafegum.files.wordpress.com/2020/11/xumakosokidazok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b9a24dda-16a9-4d3c-aec8-1eee44fb4b90/boxibawukizaf.pdfIn PDF document text
    • https://fudatagito.files.wordpress.com/2020/11/introduction_to_probability_and_statistics_mendenhall_14th.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8921771-811b-4b3d-ae4a-38e0af5e8f1f/rapawobazida.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_off0000727b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x727B 2856 bytes
SHA-256: 8a9384bc512513f01e7bbd7e26df3f33c10457497f1237922838d3b841070303
font_01_sfnt_off00007ca4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CA4 5316 bytes
SHA-256: 84599875579c4b892c0d3453511b6f5c97f5830e7449f9ad01938a92ff53d60e
font_02_sfnt_off00008e9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E9B 13252 bytes
SHA-256: e7cac75fec8d472a7d4d74b98e49ea5f21e961f31c0cb8a61e667450b05c1407

Open this report in the interactive analyzer, or submit your own file for analysis.