Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ed3ac37aac3d9ab…

MALICIOUS

PDF

100.2 KB Created: 2021-06-10 21:29:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 1852d2519fb4fb197b06ea255390ab9f SHA-1: fe3bf1c82b4272ba7c8b0f7422f4fbf0e5fa850f SHA-256: 2ed3ac37aac3d9ab7bf7f77a4e4ee55198c6356f3554e557c9cc02c689f33e7d
186 Risk Score

Malware Insights

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

The PDF contains numerous external links, many hosted on disposable domains, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or distributing further malware. While no scripts were explicitly extracted, the PDF structure and heuristic firings point towards a malicious document, potentially leveraging embedded JavaScript for malicious actions.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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://fokemale.ru/123?utm_term=crystal+reports+sp+26 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4478961/normal_5ff7f37a131e6.pdfIn PDF document text
    • https://wegoboxup.weebly.com/uploads/1/3/4/7/134772399/wefijunevetumekojo.pdfIn PDF document text
    • https://lidelituni.weebly.com/uploads/1/3/1/4/131452972/zenekodilud-pazevolofarekem.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476938/normal_6025c1907fa05.pdfIn PDF document text
    • https://jukafubu.weebly.com/uploads/1/3/0/8/130874261/guwosef_jilimetitevirid.pdfIn PDF document text
    • https://penopetidurip.weebly.com/uploads/1/3/2/8/132815040/8035850.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426954/normal_6022f58bae471.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425230/normal_6036d8bccd098.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4471106/normal_60b6c0bc686c4.pdfIn PDF document text
    • https://malegudupo.weebly.com/uploads/1/3/0/8/130813961/zapatot-tatepuzez.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456989/normal_5ff086c31a08f.pdfIn PDF document text
    • https://zolopopi.weebly.com/uploads/1/3/3/9/133999976/9226030.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374519/normal_603e50ac7cba3.pdfIn PDF document text
    • https://nixoferijoxe.weebly.com/uploads/1/3/4/3/134373865/fifiwisaxob.pdfIn PDF document text
    • https://vosewisujar.weebly.com/uploads/1/3/5/3/135398140/c8517cc.pdfIn PDF document text
    • https://mujunoba.weebly.com/uploads/1/3/2/6/132682006/mifot.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/51df1b27-9c34-492f-94ea-ce6511ee386a/78459548540.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/005ac061-0640-499c-a7b2-75256ee0c509/jolutibizakoje.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ccebeef-4f61-4776-be73-bb5513561676/mind_power_seduction_by_amargi_hillier_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b4f0c56f-ab49-4d31-b858-7d89e4dbcc57/how_to_change_photo_pixel_size_in_paint.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a296a09-9ef2-458b-9a79-a0b13a1853de/tuzuji.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/42f0549a-7297-413a-b55b-80e0e49c97aa/mini_dv_deck_player.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b6dc1cd3-b6e2-4bf3-b520-f2f9087a1fc5/positive_words_that_start_with_dis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66cc4084-d13b-4ca6-bc01-57fb11d2a458/66747773706.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/360ea03f-8392-463e-9983-ee5daaea8aeb/german_forklift_training_video_funny.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_off0001072b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1072B 19252 bytes
SHA-256: 4a6b082f4495220170fa16e6191948cd1be118afea7a29a10c36cebc13fe5a78
font_01_sfnt_off000144db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x144DB 5104 bytes
SHA-256: d98ae13b4f125fa54412ad860e72d14de90756601061d21a6c360f4f6cd6411d
font_02_sfnt_off0001564c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1564C 16176 bytes
SHA-256: 3041dd145598cf8d21968774188ef48ec172e5a65ca8ad34d38bf214941f2f64