Malicious PDF — malware analysis report

Static analysis result for SHA-256 25714f75373bf512…

MALICIOUS

PDF

88.5 KB Created: 2021-02-27 03:36:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 29f00d12caba45711a25e41cfeadc2ab SHA-1: 144d89de0cd8f192007e7ae05b1f3454f2710146 SHA-256: 25714f75373bf5124c10c0fba5962d5065efbbbde8905336386780e743d8cc12
196 Risk Score

Malware Insights

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

This PDF file was identified as malicious by multiple heuristics and a machine learning classifier, with ClamAV detecting it as a phishing trojan. The document contains a link farm and redirects to external PDFs, suggesting a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and embedded links indicate an attempt to redirect the user to malicious content hosted at URLs like lozipotod.ru.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://lozipotod.ru/123?utm_term=how+to+say+conflict+resolution+on+resume PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4484107/normal_6004871d5910d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426830/normal_6033b528a98b7.pdfIn PDF document text
    • http://naturfresh.space/984099260264j8xp.pdfIn PDF document text
    • https://cdn.sqhk.co/bemememu/gdkJLjb/ducks_basketball_roster_2016.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4428033/normal_5fed54ecbf6b7.pdfIn PDF document text
    • http://afracheat6.xyz/391207665920b0pp.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384149/normal_5fcd65110077c.pdfIn PDF document text
    • https://xagaxomopezegif.weebly.com/uploads/1/3/4/3/134355140/09553ce936e9e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4503533/normal_6004181d42270.pdfIn PDF document text
    • https://fapopadiwa.weebly.com/uploads/1/3/1/4/131438416/nosur-mujimadatesak-xazusawi.pdfIn PDF document text
    • http://mnclassis.org/wulisozeguvuzudtqfvq.pdfIn PDF document text
    • http://lnstagramcopyrigtservice.com/bol_chudiya_bol_kangnasz3s5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449968/normal_5fc728f7ed75a.pdfIn PDF document text
    • https://cdn.sqhk.co/nalujujoso/hcxrjhi/lufipuxezejusanifakega.pdfIn PDF document text
    • http://winoraama.space/27502090539j8yiv.pdfIn PDF document text
    • http://kigurumi.org/binakesepebuwosubtxc77.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407084/normal_600ff2f2ade53.pdfIn PDF document text
    • http://redtea.space/amor_divina_locuraa2w9n.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
    • 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_off00010f84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F84 5064 bytes
SHA-256: 9f55c5bed885844a94ed0d7aab9d9f75267d5ce170b4720bcbdd7da2925172c8
font_01_sfnt_off000120ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x120AE 10844 bytes
SHA-256: 15e1efd44e34d3b3ef80c8c0d15d9c4101054811d85555c141a4b930550f36e4
font_02_sfnt_off000145e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x145E9 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c