Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bc983f010fdfed3…

MALICIOUS

PDF

42.0 KB Created: 2020-11-03 04:39:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 4aab772a80ace5d1e0c9e2312e224c61 SHA-1: ceb2701e2ecd2a36c47aacc3e812489401f0c203 SHA-256: 6bc983f010fdfed3b57445d5725fd83e3f30ae0201761cf6d79f2510c621e33b
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.me/123?keyword=maryland+state+motto+nickname In PDF document text
    • https://pepuzategazeg.weebly.com/uploads/1/3/1/4/131453576/4881394.pdfIn PDF document text
    • https://zimiduninu.weebly.com/uploads/1/3/1/6/131637103/7d574c.pdfIn PDF document text
    • https://dotodologeviron.weebly.com/uploads/1/3/4/5/134513902/jaxojuzakowirapite.pdfIn PDF document text
    • https://lipowuripipu.weebly.com/uploads/1/3/1/3/131378852/3750765.pdfIn PDF document text
    • https://remewizefo.weebly.com/uploads/1/3/1/8/131856163/2cd1b0a64.pdfIn PDF document text
    • https://satijezusadevu.weebly.com/uploads/1/3/4/3/134310115/3226838.pdfIn PDF document text
    • https://luketekovagitor.weebly.com/uploads/1/3/4/2/134236109/zajaximetep_rofojeka_dudojomiziniki.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/1302795.pdfIn PDF document text
    • https://lixaworone.weebly.com/uploads/1/3/1/8/131871871/vegijotu.pdfIn PDF document text
    • https://nubawobadeg.weebly.com/uploads/1/3/4/1/134131997/2143049.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/5283/8297/files/susuramuretukexex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/2698/0282/files/nekawezofufuro.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzaganog/tiny_troopers_2_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/tamobalasu/unblocked_games_3000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/5281/2456/files/telecharger_officesuite__editor.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_off0000640c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x640C 5256 bytes
SHA-256: f065d69653911b01e92e04e822a415875e7b544ac2f079805d322e7c1c73f70e
font_01_sfnt_off000075ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75EA 10904 bytes
SHA-256: 8615ffeb4e553759bc1f1d506c753c24cb45701df587facd6dae1e939905f365