Malicious PDF — malware analysis report

Static analysis result for SHA-256 1108ac1b049f9d9a…

MALICIOUS

PDF

87.6 KB Created: 2021-03-19 21:20:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 10cb30138a9c1a4f5f73af374d4550d1 SHA-1: 29617e8bac44a49ca9cb9a5555d9af88f40612dc SHA-256: 1108ac1b049f9d9a7274cfa34bfd137f58c18f2b2e170a6a3fada09bb45568c4
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains multiple heuristics indicating malicious intent, including ML classification and ClamAV detection as a phishing trojan. It embeds external URIs, with one pointing to 'ponafet.ru', suggesting a phishing lure. The document body, though heavily obfuscated, contains text fragments related to 'Catme peer evaluation answers', reinforcing the lure. No scripts were extracted, but the PDF structure and embedded URLs strongly suggest a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • 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 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://ponafet.ru/wix?keyword=catme+peer+evaluation+answers PDF link annotation
    • https://s3.amazonaws.com/tokatefozude/monat_compensation_plan_explained.pdfIn PDF document text
    • http://dikoxikikalonib.scienceontheweb.net/vacina_antirrbica_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/fadupazageraf/asrock_z77_extreme6_overclocking_guide.pdfIn PDF document text
    • http://galabogenezoso.getenjoyment.net/68339691207.pdfIn PDF document text
    • http://xudozuborupi.22web.org/wix_embedded_mysql.pdfIn PDF document text
    • https://cdn.sqhk.co/terasovo/jbFxgga/41198599844.pdfIn PDF document text
    • https://s3.amazonaws.com/julexekubaj/rilixi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413702/normal_5ffac2529a71d.pdfIn PDF document text
    • https://cdn.sqhk.co/vuzefegevo/iage9VM/romegapu.pdfIn PDF document text
    • https://s3.amazonaws.com/lovomijelun/remogejewam.pdfIn PDF document text
    • https://cdn.sqhk.co/ropimipaf/epgiPgj/lighthouse_point_park_florida.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501989/normal_5ff14e6bda11f.pdfIn PDF document text
    • https://cdn.sqhk.co/tijinujul/dghKOgW/salobovuriforoxizib.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460449/normal_5fca9433ef997.pdfIn PDF document text
    • https://cdn.sqhk.co/bozadukopufu/YihqjiJ/dream_daddy_craig_minigame.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://dbba0f06-1911-40f0-8c80-a2638c7f81cc.filesusr.com/ugd/b13fd1_e9c082120a07447f80583fd7e9c20dc2.pdf?index=trueIn PDF document text
    • https://f608bf75-187c-4b28-9621-af925c05c2b6.filesusr.com/ugd/05e3ad_489d0cabc0164c49af2f6736105d4e9d.pdf?index=trueIn PDF document text
    • https://36535336-4f9e-4c0a-b1ad-3385cb5d4299.filesusr.com/ugd/15ebe2_83fb309a78264a538f4e3e4f29536fb0.pdf?index=trueIn PDF document text
    • http://mubodadekutaxim.atwebpages.com/13737233805.pdfIn PDF document text
    • http://limufij.myartsonline.com/81995058439.pdfIn PDF document text
    • https://a43ab9c2-5efb-4cee-ac06-b782a0f5e207.filesusr.com/ugd/4826f5_36f3c8764787473fbbf277ff9b14601b.pdf?index=trueIn PDF document text
    • http://kogisovaf.epizy.com/cancer_no_microcitico_de_pulmon.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 8

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_off000118fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118FA 5020 bytes
SHA-256: be1203344afc63d3bea0e6c64b66f475bc9b365300541fee6f5ae213ad09e8c3
font_01_sfnt_off00012a04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A04 11304 bytes
SHA-256: 14eb565e41885b305419d579de93ab18b69f0469bc1c8deba73fad5db9665e76

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