Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8f19277e8211ee5…

MALICIOUS

PDF

43.6 KB Created: 2020-10-05 02:15:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7b23d0f37edfcb93c0e7c80dbd85b2c0 SHA-1: 464fb2868eaa9b56b22309c6f994b10e0100402f SHA-256: f8f19277e8211ee5e92e4a037da58393d99ec11955442d0c4f5a273269aacbb0
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link to a known malicious redirector, which is a common tactic for delivering further malicious content. The document body, though heavily obfuscated, contains the same URL, suggesting it is the primary lure. No scripts were extracted, and the file type is PDF, indicating a likely phishing or redirection attempt.

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://ttraff.link/pify?keyword=captains+of+industry+or+robber+barons+dbq+answers In PDF document text
    • https://site-1040800.mozfiles.com/files/1040800/79586809271.pdfIn PDF document text
    • https://site-1036779.mozfiles.com/files/1036779/14481262490.pdfIn PDF document text
    • http://biredurub.frankicolett.com/uploads/1/3/1/3/131398232/423bc8.pdfIn PDF document text
    • http://files.seabrookband.org/uploads/1/3/1/4/131454316/duxareredikubejona.pdfIn PDF document text
    • http://dadixapep.statesocietyofflorida.org/uploads/1/3/0/8/130874376/6270254.pdfIn PDF document text
    • http://files.ebcentre.co.nz/uploads/1/3/0/7/130738801/rugunifiwetatizalusi.pdfIn PDF document text
    • http://files.usedofficechairs.net/uploads/1/3/1/0/131071063/tisogu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/d1d7ac41-18c9-4131-959a-fd74f29eff42/41811717822.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af9f2025-fa14-4303-aa5d-47c49cd2f57a/zubomojofe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/31398fa6-8e95-4df6-96de-696c24d959d9/sanagesoliw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d508cc7-b0f9-42e5-b476-7f28a77bc6ea/15977356992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6877/5841/files/synonyms_for_most_specifically.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7480/4126/files/1866380634.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_off00005d15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D15 5368 bytes
SHA-256: 5cf412acf4cd8b140d2c320136f6cd56fafd10463d3be3dc3bd63af9670a6b5b
font_01_sfnt_off00006f6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F6D 10352 bytes
SHA-256: d0d904ff00fd9e314156d061d3ec402a7c0717b71b9670a1122ae99f7eacd44e
font_02_sfnt_off000092c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92C2 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361