Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd2b9868e24013c8…

MALICIOUS

PDF

49.1 KB Created: 2020-09-17 22:24:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 02c1ca912a4970f31a216a45629f5178 SHA-1: 6b10731ac567862bb5552547c5e0673a942627ec SHA-256: cd2b9868e24013c8e51a952acaa2f1b60c77c10fde5c47ca752d3fe4cf66088b
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains a large number of embedded links, many of which point to external PDF files. One prominent link directs to a malicious redirector disguised as a product listing. The ML classifier also strongly flagged this PDF as malicious. The primary attack vector appears to be luring the user to click on malicious links within the document.

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.com/wix?keyword=omnitech+12+sheet+cross+cut+shredder In PDF document text
    • http://files.smokymountaindockdogs.com/uploads/1/3/1/4/131438453/wamagig.pdfIn PDF document text
    • http://kizogama.graywaycreations.com/uploads/1/3/1/6/131606938/texup.pdfIn PDF document text
    • http://zaveli.shannoncangey.com/uploads/1/3/1/4/131410007/suvivipewadi.pdfIn PDF document text
    • http://files.college-boundcoachesnetwork.com/uploads/1/3/2/8/132814898/5aad922337.pdfIn PDF document text
    • http://files.milimawear.com/uploads/1/3/1/6/131607027/1145dc6feb29.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://79e7712a-bc12-4343-ac7e-3d20e0313f9d.filesusr.com/ugd/d31907_436b19a1918941a4bba9d55637473b70.pdf?index=trueIn PDF document text
    • https://50d266dd-0361-4054-9b27-93d0a759280b.filesusr.com/ugd/74e9cf_79e617f3459749c9beda5a149eb232b3.pdf?index=trueIn PDF document text
    • https://a67a7b8d-3810-4a2c-b932-1dd31c6abdec.filesusr.com/ugd/95089d_be4b3592d41540f180f27d92f2b76fd8.pdf?index=trueIn PDF document text
    • https://b574b969-15d3-425f-b18c-8e5d80a3d816.filesusr.com/ugd/2d1648_766bf56d71284992a41ced4757085339.pdf?index=trueIn PDF document text
    • https://35d1e97a-fe1e-4367-8a41-a40e2d439d90.filesusr.com/ugd/b3318b_4387175c60884aba8b9de25c070d2af6.pdf?index=trueIn PDF document text
    • https://76098b63-dc38-4f6a-98d8-cf139d5b3ea1.filesusr.com/ugd/78c764_264fe5fc3b8343bba2645e8ae94fed4d.pdf?index=trueIn PDF document text
    • https://ab7d74ce-4ca8-49e3-b4e7-fd908c6a8aad.filesusr.com/ugd/440e29_f64702803a77443b872eac543ef9b39e.pdf?index=trueIn PDF document text
    • https://4cf88b35-f18e-4fc0-830f-4664c999d19c.filesusr.com/ugd/eda9ba_182fdec07f3a4dc4a1c2a06e3abfce96.pdf?index=trueIn PDF document text
    • https://13ef9f06-1e82-4aa6-899b-73ddf1b8be83.filesusr.com/ugd/89064d_00be94d3b9b241048fed8c030f71f73a.pdf?index=trueIn PDF document text
    • https://6df774e2-267b-414d-b2cf-829eb8c7ba47.filesusr.com/ugd/1df9ea_187c27d3041542f68f465927c3ae3c62.pdf?index=trueIn 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

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000081b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81B8 5148 bytes
SHA-256: a29ca1bef61b792f99b2fbc71e39e066984f37bc6b533156fdde4c9b8b2b1756
font_01_sfnt_off00009317.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9317 10656 bytes
SHA-256: 1dbbedd941731ef30000c5c7647835cbf3e2bb1d493c9a515c446458d0d6c81b

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