Malicious PDF — malware analysis report

Static analysis result for SHA-256 16e74101968276f3…

MALICIOUS

PDF

83.4 KB Created: 2021-02-12 00:01:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 61d097afe112ee1216e2bede992461e6 SHA-1: 2d217359b3a29fc76f8da7d987ff63ea728f624f SHA-256: 16e74101968276f3480675d8cf490268f965efce85cef174b18ac92525ec1f8c
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous embedded links, with one heuristic specifically identifying it as a link farm on disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URIs suggest an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/wix?keyword=king+of+avalon+beta+apk+download PDF link annotation
    • https://puzejiwitamino.weebly.com/uploads/1/3/1/4/131453698/2526932.pdfIn PDF document text
    • http://technodom11.com/28582399303db8e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445119/normal_6015adf548ebf.pdfIn PDF document text
    • https://s3.amazonaws.com/kuxuxemu/jikerabonugisa.pdfIn PDF document text
    • http://wirelessinfo.ru/15958287259rxkc.pdfIn PDF document text
    • https://nurojitare.weebly.com/uploads/1/3/2/6/132682966/8482169.pdfIn PDF document text
    • https://s3.amazonaws.com/vexeliku/free_bridal_bingo_template.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365628/normal_600523b9cb79a.pdfIn PDF document text
    • http://polnews.xyz/sifajupamififesuluxapakam2a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375908/normal_5fe119c190ad0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464080/normal_600ab6500d179.pdfIn PDF document text
    • https://gukikaxut.weebly.com/uploads/1/3/0/7/130775725/tawagipubafowike.pdfIn PDF document text
    • https://s3.amazonaws.com/jonora/lixex.pdfIn PDF document text
    • https://sirukume.weebly.com/uploads/1/3/0/8/130814715/torikeferatasuvod.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484805/normal_5fdee680eadb9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nowivopikuzud.epizy.com/llandudno_surf_report_webcam.pdfIn PDF document text
    • http://noxagipuputop.rf.gd/12674599920.pdfIn PDF document text
    • http://pojitak.epizy.com/bbc_iplayer_app_for_chrome.pdfIn PDF document text
    • http://bakotege.rf.gd/calcaneovalgus_deformity_icd_10.pdfIn PDF document text
    • http://banobozibijur.epizy.com/spiderman_3_ppsspp_android_cso.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
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f31f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF31F 5260 bytes
SHA-256: 9b3f2472a48e6483dd7abd63708970b797f71daae5cc5e15d1c0c511d68b0380
font_01_sfnt_off0001052f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1052F 10704 bytes
SHA-256: 04a2bbc149cc859e935e6edb7f4c9c06b65afabefb7c7fbdb42d6651a3ffb190
font_02_sfnt_off000129f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129F9 16436 bytes
SHA-256: 82ff1b67254b78c1ee0adf625a5874e83155b3daef551421cdcfc373801bb273

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