Malicious PDF — malware analysis report

Static analysis result for SHA-256 6eeb14c02829dbf9…

MALICIOUS

PDF

44.8 KB Created: 2020-10-03 13:07:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 82dcfb2480d4be718bbe1b52d69f6fb7 SHA-1: c74bc3a03a5428fa6ab395f387b574d2c120b29a SHA-256: 6eeb14c02829dbf9ed9ca8f447267e9af724dd2f6095ef7d2fa088dd3fcbea18
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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/strik?keyword=absalom+and+achitophel+as+a+biblical+allegory+pdf In PDF document text
    • http://files.staffchildrenscenter.org/uploads/1/3/1/8/131857756/zaditusa.pdfIn PDF document text
    • http://files.doublefeaturepreachers.com/uploads/1/3/1/8/131871583/7255134.pdfIn PDF document text
    • https://site-1037102.mozfiles.com/files/1037102/26308966289.pdfIn PDF document text
    • https://site-1037889.mozfiles.com/files/1037889/pumanoxesufam.pdfIn PDF document text
    • https://site-1038901.mozfiles.com/files/1038901/55174715568.pdfIn PDF document text
    • https://site-1036728.mozfiles.com/files/1036728/sitajedusiziwonumodovezez.pdfIn PDF document text
    • https://site-1036750.mozfiles.com/files/1036750/gumukitigemujisuzipu.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/1/0480/5545/1812/files/super_smash_bros_melee_64_mod_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0981/7251/files/31570816458.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/6741/7243/files/38077510459.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75918f53-1806-4dde-9379-3c21799a5627/pirawesojutawisepixa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5492b8fd-4485-44c7-ac94-2fef786e3034/45553467672.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_off00006f9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F9F 5800 bytes
SHA-256: e8fd51c4ad09739a5587b25071d7ea58f97e6815cb5ae4d51605caecfa3f6e9c
font_01_sfnt_off0000833d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x833D 10152 bytes
SHA-256: cb7a483df2c10a1b005034c81a88943ba4523bb00ba1b79ea97888c26dba9d27