Malicious PDF — malware analysis report

Static analysis result for SHA-256 82233a7853311226…

MALICIOUS

PDF

66.4 KB Created: 2020-10-14 17:51:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 38833110d2b8301390e6857aeb4b5f81 SHA-1: c6856c769690888674c89af3fa3090de738a2895 SHA-256: 82233a785331122651883a25748d985c3ee0182ea1af51b597c1a99650261bec
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/pify?keyword=pit+boss+820+deluxe+pellet+grill+manual In PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/4d5351fbb209c0.pdfIn PDF document text
    • https://gevafitasib.weebly.com/uploads/1/3/1/3/131380901/1429013.pdfIn PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/bupemigimamuvap.pdfIn PDF document text
    • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/7885719.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/4102594.pdfIn PDF document text
    • https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/devuxupujikeninaferi.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/bewoti.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/11b65561-5c3e-45f2-8d06-0b9b90866179/91599278903.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f619fb5-2e4b-48ee-9e19-9e5bf066b439/30452469113.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/253b0c44-4fad-40b6-9e93-b565599d8754/29279914049.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a314e8ad-8cc0-44fa-a876-b992ebcdd231/77364674232.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ffd95b7-0a05-4dae-a202-ffad853cb34a/xakavizowusovoxafonog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/9618/6274/files/44054885770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8905/8206/files/48341699153.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/5677/0455/files/shark_nv552_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23d9e534-c059-479b-9173-26f14ea2263a/delipikifup.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2bdf763e-2ca9-4421-826a-ffb58c370236/41206570697.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/627293af-2876-4ac7-87d1-c03ee78a1fef/52572096688.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7658/2552/files/chesapeake_ymca_salisbury_md.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/5625/0013/files/ratadabuxowavemokazatu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6341/8784/files/albion_online_review_ign.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3754/1031/files/pekubetapiziwiwesewitiju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/7770/6943/files/vendredi_ou_la_vie_sauvage_tlcharger_gratuit.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_off0000aea7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAEA7 5956 bytes
SHA-256: 76798fba143bdda87e3a82b506b33f44f581ee105e76fa036a130818b40e47c1
font_01_sfnt_off0000c2be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2BE 4792 bytes
SHA-256: a568b9c4984520970385fdad3837af2d22b99bd830d3221037a155100314987b
font_02_sfnt_off0000d55b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD55B 11372 bytes
SHA-256: d889c165cabbab2be5d814ae2d3cbdc0c5cad6831c283889927674e67c52dbc2