Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd32111751e49f4e…

MALICIOUS

PDF

46.3 KB Created: 2020-11-09 13:15:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: b728658438e1acd3d3f6b22b0ec69cbf SHA-1: 8a827cef9d2a6da2ca83184e274d4952bd872a4c SHA-256: dd32111751e49f4e59bb4dd75b36f295e2aa8b0314c6430d6a4c011f032aa86c
132 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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://traffmen.ru/123?keyword=apple+arcade+games+on+apple+tv In PDF document text
    • https://vonubaxuted.weebly.com/uploads/1/3/1/4/131452839/lilufese.pdfIn PDF document text
    • https://winomumamo.weebly.com/uploads/1/3/1/0/131070375/salagarifug.pdfIn PDF document text
    • https://medizagokitoni.weebly.com/uploads/1/3/2/3/132303310/c32f00a4.pdfIn PDF document text
    • https://posodukur.weebly.com/uploads/1/3/4/3/134347560/1594528.pdfIn PDF document text
    • https://gomemetunugup.weebly.com/uploads/1/3/2/7/132712315/vomupori.pdfIn PDF document text
    • https://dexonakupo.weebly.com/uploads/1/3/4/6/134644734/wutimek-xivig-tikivase.pdfIn PDF document text
    • https://dudererojafa.weebly.com/uploads/1/3/4/3/134362298/tugom_lujajov.pdfIn PDF document text
    • https://fiwatinizajof.weebly.com/uploads/1/3/0/8/130874156/cf345ca819.pdfIn PDF document text
    • https://riragojefo.weebly.com/uploads/1/3/1/8/131857115/gomusiwotizo-jozewi-riluvuf-lopoludopigemef.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/regegozumekoza/raradifiz.pdfIn PDF document text
    • https://s3.amazonaws.com/leteraxewe/how_to_loop_a_quiktime.pdfIn PDF document text
    • https://s3.amazonaws.com/giwurode/gelepolekumadi.pdfIn PDF document text
    • https://s3.amazonaws.com/xalexojaxipud/35258355896.pdfIn PDF document text
    • https://s3.amazonaws.com/megelugik/adobe_photoshop_cc_2019_crack_only.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_off000076ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76AC 5444 bytes
SHA-256: 6cd21675985411dd3d9ab65666de6fe28952b362c95972fe4bf87c4a416ced4e
font_01_sfnt_off00008920.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8920 10340 bytes
SHA-256: dc5d3ad6b31b5f3d2b62f27e100a3acff85b62743aa21ad34450d52efa428b35