Malicious PDF — malware analysis report

Static analysis result for SHA-256 32eff1d404f4e405…

MALICIOUS

PDF

99.9 KB Created: 2021-03-06 14:44:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 252c0e702a848271b8eeed935a9b67e9 SHA-1: ec1a05802147c31764904ad4f4d3dd37de2a440c SHA-256: 32eff1d404f4e4050bcc23cc6d61b978f7a8c5d93b08f06f2fecba38833f0125
186 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF was identified as malicious by ClamAV and an ML classifier, specifically as Pdf.Phishing.Trojan. The file contains a large number of external links, many pointing to PDFs on disposable hosting, indicating it functions as a link farm. The presence of embedded URLs and the nature of the link farm suggest an attempt to lure users to malicious content or manipulate search engine results.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9909

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://pelibifir.ru/123?utm_term=d%2526d+basic+set+rulebook+pdf PDF link annotation
    • http://gexopidikimo.mygamesonline.org/noperodegasivimanikon.pdfIn PDF document text
    • https://cdn.sqhk.co/loxexafetivu/axjaidC/kimuze.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481173/normal_602d6048aca5d.pdfIn PDF document text
    • https://cdn.sqhk.co/dinigivo/c1jfgeK/ion_party_rocker_live_speaker.pdfIn PDF document text
    • https://cdn.sqhk.co/pixazizaze/irhiFgn/free_offline_games_for_iphone_4s.pdfIn PDF document text
    • http://nogurufegu.mygamesonline.org/giruxigijofuvezupinitenex.pdfIn PDF document text
    • https://cdn.sqhk.co/nazopekujavi/UA6emiC/shake_shack_promo_code_online.pdfIn PDF document text
    • https://cdn.sqhk.co/nowagenika/jcgHXJp/72189890761.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385028/normal_5feb960539d23.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://9c68190f-8328-4368-8349-889d122a119f.filesusr.com/ugd/c4dbd3_f28c1a0cebf4425abab80f132d9df76c.pdf?index=trueIn PDF document text
    • https://6f8cb219-4830-455d-9ced-b55e65700e85.filesusr.com/ugd/fd30ac_ccb93865193547b38e8ddaf1fd59bff3.pdf?index=trueIn PDF document text
    • https://da18e6a8-d720-42de-a88c-3f13daad7efb.filesusr.com/ugd/08fe48_cc7b4e7747fb4e25a5eda7eac13adb3d.pdf?index=trueIn PDF document text
    • https://9a4203bb-6ff2-4ef1-9c63-3f113f84a884.filesusr.com/ugd/ea9bdf_6d6eb6919bd64330a92295a75842afca.pdf?index=trueIn PDF document text
    • http://vorisenunajix.myartsonline.com/lexus_rx_350_suv_2019_price.pdfIn PDF document text
    • https://5663e088-3595-439c-971a-5873693bee35.filesusr.com/ugd/e98895_eee2bd6513804c7c9dfddcad52a72381.pdf?index=trueIn PDF document text
    • https://e6676b24-921d-4f57-8fca-beda98688f3c.filesusr.com/ugd/144d27_9b91a407fce945c4b424d3e735e4a513.pdf?index=trueIn PDF document text
    • https://49b821e7-ee7e-41b4-809b-d0417b8c1ddf.filesusr.com/ugd/927743_39b3b933c8d042439a42d76b0456d8c2.pdf?index=trueIn PDF document text
    • https://ad323f3e-245e-4e3c-8b16-de91fefec063.filesusr.com/ugd/5ea691_a8336e66ab2c4e47a5624645e6ff3996.pdf?index=trueIn PDF document text
    • http://bilisedutave.myartsonline.com/how_to_hook_up_rca_home_theater_system.pdfIn PDF document text
    • https://5e0c4d4d-41f9-428c-9564-b93e7cff6769.filesusr.com/ugd/510691_dc564eabee5f4d7c808951274e4809a5.pdf?index=trueIn PDF document text
    • https://47ab6ce1-aee6-4086-a8e7-31fe393d2411.filesusr.com/ugd/afbef4_e378314f819c4035ae321e0ab0f55a82.pdf?index=trueIn 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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 8

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_009_off00016f4a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x16F4A 6504 bytes
SHA-256: 86080a04ebd78c763bf26cb6368b1a231e23f9dd80b9fbcaa967b2208a50f933
font_00_sfnt_off0000deaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEAF 7516 bytes
SHA-256: 696a81e84d583080892157656baf155fffa2942e40915b42bf972e5d124c7400
font_01_sfnt_off0000f234.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF234 3148 bytes
SHA-256: a5b279f02d72b9a9f90a20f4d0ea34bc529691a211e0332fc8c824e18e1de280
font_02_sfnt_off0000fd73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD73 3484 bytes
SHA-256: b6bc3e761eca8ae26333d0367913862b9788f7109bed8a3dd2635371d897bba1
font_03_sfnt_off0001089f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1089F 6280 bytes
SHA-256: 06620024b44374a83b8c1884f59b4bec392d08253552662d24842b9828248703
font_04_sfnt_off0001180a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1180A 17260 bytes
SHA-256: dda5c22d5d85bd3bf3e21df3b10691b53dff3807276e54bf80bebd5a50a10454
font_05_sfnt_off00014ae7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14AE7 16516 bytes
SHA-256: 704e4f2605e0eaf15293b796e295765bb4019acaac2a5e915369f48b59420b95
font_06_sfnt_off00016188.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16188 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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