Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c87ce479466fa0d…

MALICIOUS

PDF

39.6 KB Created: 2020-09-18 07:06:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 10b19dde03a37a13537326372a53883e SHA-1: 4e1e207e53442bba53b1ab3918f091b6e8ff64c7 SHA-256: 2c87ce479466fa0d90867e58e46a2dc947ae8606199cf9e02903713540cba596
184 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one identified as a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains URLs that are consistent with a link farm designed to distribute malicious content. The primary attack pattern involves luring users through these links to potentially malicious sites.

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.club/wix?keyword=sample+amended+articles+of+incorporation+for+dissolution In PDF document text
    • http://files.yudancearts.com/uploads/1/3/0/7/130739459/497ce.pdfIn PDF document text
    • http://files.royaltyriseproductions.com/uploads/1/3/1/8/131857445/kevipazelimirix.pdfIn PDF document text
    • http://files.stephaniegalyon.com/uploads/1/3/2/8/132814071/8254493.pdfIn PDF document text
    • http://files.luxuezheng.com/uploads/1/3/1/3/131379014/bomifiwumuk.pdfIn PDF document text
    • http://files.rosiealabaster.com/uploads/1/3/2/6/132695636/tutol.pdfIn PDF document text
    • http://files.urban-grow-systems.com/uploads/1/3/1/4/131413148/mevukipulafemetibub.pdfIn PDF document text
    • http://susomuti.winnipeghenna.com/uploads/1/3/2/7/132712348/zewopavulipofamuxas.pdfIn PDF document text
    • http://zowapomu.godsloveinpoetry.com/uploads/1/3/2/7/132740228/sediziwox.pdfIn PDF document text
    • http://gizot.lightfastdesign.com/uploads/1/3/2/8/132815732/cbaf84e92d8032.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/1/0427/9071/5548/files/63422086408.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0446/0188/files/twitter_images_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/3675/4329/files/administrateur_territorial_formation_initiale.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

Related samples 6

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_off00005c87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C87 5404 bytes
SHA-256: 46691b3be72beb49faedf1b96cb37be1684e0b85085d4b99cc180814b09ff494
font_01_sfnt_off00006ecd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ECD 10120 bytes
SHA-256: cebb77fe6a7f58320eb48bbc3be3c3d7dbf82ba8acbd76b2e6336c1177b6e4f5

Open this report in the interactive analyzer, or submit your own file for analysis.