Malicious PDF — malware analysis report

Static analysis result for SHA-256 48c3302f063a9484…

MALICIOUS

PDF

45.3 KB Created: 2020-10-07 06:09:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 15f34468615cf6e71ad7ad8a41712c2c SHA-1: e691e4970aa34d015c8b6a4d79f72d4136feec34 SHA-256: 48c3302f063a9484449246334c8dd81e1ce51f15c0afa8cb375aa286d1454434
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=audi+q5+2018+mmi+manual In PDF document text
    • http://files.taralynnmacdougall.com/uploads/1/3/2/6/132695519/ramumazipegegivov.pdfIn PDF document text
    • http://files.eiotown.com/uploads/1/3/0/7/130739155/pomezubeg.pdfIn PDF document text
    • http://files.ruirosalab.com/uploads/1/3/1/3/131398219/pibozelini-vosamizubozijum.pdfIn PDF document text
    • https://site-1036786.mozfiles.com/files/1036786/78965978167.pdfIn PDF document text
    • https://site-1040998.mozfiles.com/files/1040998/duvazesefanasitabe.pdfIn PDF document text
    • https://site-1039152.mozfiles.com/files/1039152/14368905672.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/1/0431/2354/0124/files/38554983919.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/0206/9667/files/wileyplus_financial_accounting_chapter_11_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3750/files/roxalafipobavafuk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8fcbbee0-63f9-4bf6-9eec-1bb2e9882a0f/24959381018.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98ec3df7-eadd-4a4a-9167-9ad2618a90ca/95783582115.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/010994eb-51de-4428-afbc-c91f893603a0/wemotu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b28283f7-ecfd-4a3b-a6cc-e8a65fb265f9/tenabofagovejitakesig.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a565cefd-027f-48f9-83dd-d137a8c2eefd/8259297743.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_off00006c65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C65 5456 bytes
SHA-256: 12edc92dbe4c461736184b0b137ae7ef8243bad736d16b0552be9aa5e89dc41f
font_01_sfnt_off00007eed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EED 13508 bytes
SHA-256: 5831145e02062175bb2b63bcc7cf4b64b48cf763ba85cd7badd1338d85079727

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