Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b2a95f39ece0874…

MALICIOUS

PDF

126.5 KB Created: 2021-03-12 14:54:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 291613086dfea234234c0fd7d3cde0c1 SHA-1: 79e083785881cee7db46be20db09f9e017bbc70c SHA-256: 0b2a95f39ece087439c6e35f2f9d258fa9f154509b53dec5784da9e4d8ba5f8d
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a large number of external links, many pointing to disposable hosting, indicating a link farm or phishing attempt. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution. While no scripts were explicitly extracted, the presence of numerous external URLs suggests the document is designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://xezojetit.ru/123?utm_term=income+guidelines+for+affidavit+of+support+2015 PDF link annotation
    • http://gaxazoxisis.22web.org/what_to_mix_with_crown_royal_black.pdfIn PDF document text
    • http://jevopapivixepe.iblogger.org/lucid_dreams_sheet_music_clarinet.pdfIn PDF document text
    • https://ladunibik.weebly.com/uploads/1/3/4/0/134096621/tuzesaxewofotusor.pdfIn PDF document text
    • https://vebunigujop.weebly.com/uploads/1/3/4/3/134367951/xixozovoso.pdfIn PDF document text
    • http://xasujaru.22web.org/vuvifegabawevuruja.pdfIn PDF document text
    • http://riwetisanuda.iblogger.org/kevemelazuzobar.pdfIn PDF document text
    • https://fepepifufom.weebly.com/uploads/1/3/1/8/131872298/32e62aca3d17220.pdfIn PDF document text
    • http://jujasoje.iblogger.org/disupidiwufegawur.pdfIn PDF document text
    • https://pebabole.weebly.com/uploads/1/3/4/6/134698512/tufokuso.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://1c019786-7048-4615-837a-ae53f087c4ae.filesusr.com/ugd/8b4172_046119c68aea4a2e9a4b449ea5341346.pdf?index=trueIn PDF document text
    • http://pebotavafusu.epizy.com/happy_birthday_jesus_violin_sheet_music.pdfIn PDF document text
    • https://367e539a-c541-4439-991c-4bf2bef2aa7a.filesusr.com/ugd/77d535_e32f4abfd4f8445c9821bac3db10dd14.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/989d9c77-6b1a-457d-b46b-0b4f80abe18d/will_voyager_reach_another_solar_system.pdfIn PDF document text
    • http://luwusifijusu.rf.gd/disoju.pdfIn PDF document text
    • http://suvumudupese.epizy.com/52929027445.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bfdfa94a-9de2-4207-bef3-d415b546b22c/76798262511.pdfIn PDF document text
    • https://c8a164a7-2549-4056-b209-d27d417f800b.filesusr.com/ugd/136d3d_e993db1132b348a18aaab79c83eb48a3.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/43c919ab-9bf1-4f7b-8ea1-30441cd33def/38080659074.pdfIn PDF document text
    • https://4be8a7ba-6c9a-47a4-99fc-a5961b41a404.filesusr.com/ugd/132250_b443fcf1d8644da1a6b155bf64ce3e5a.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/992c69d0-949c-4373-a453-7d96b0458ad3/pomujimadipaje.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000199ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x199BA 2864 bytes
SHA-256: feb7b0a231daa5869376ede745e3710e8328e703e54e7a1fa61048461e3e1f84
font_01_sfnt_off0001a3ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A3EA 5804 bytes
SHA-256: 8dd8267c76c75f587fc3eb1996f5bca393665a50ee77cdd7f6a495f37878e9bf
font_02_sfnt_off0001b797.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B797 11260 bytes
SHA-256: 60ca817733a9ef2e5ff97a62e0160e116e53b11525889fd4217aad6a754ae7ee
font_03_sfnt_off0001dd9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1DD9A 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333