Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbbfee3095b6648b…

MALICIOUS

PDF

84.1 KB Created: 2021-03-21 11:00:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b7da305ff90cd9e3c46e803f8b48688d SHA-1: d358d7e918b16d6840621f82b17faa62a1c31475 SHA-256: cbbfee3095b6648bd456c8d1dcdf8beeea62388187d96cf929e4bb732b8ee8b1
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to disposable domains or link farms, suggesting an attempt to redirect users to malicious content. The presence of external URIs and the overall structure indicate a phishing or malware distribution lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://botokaw.ru/wix?keyword=aarp+medicare+part+d+formulary+2020 PDF link annotation
    • http://fredo.bike/25219293814yk8ig.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494160/normal_5fcea15070c12.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412380/normal_602f585a1f9d6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448550/normal_603fb6593d3b3.pdfIn PDF document text
    • http://sweetmeet.online/wetuseprjfg4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376086/normal_5fe962c49ddf2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389805/normal_601ddffa8375d.pdfIn PDF document text
    • http://o-karte-kopilka.com/17561839412k4caa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366660/normal_5ff69c2d97d54.pdfIn PDF document text
    • https://s3.amazonaws.com/rujimidujek/76667273808.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370267/normal_5fed2c5c59555.pdfIn PDF document text
    • https://s3.amazonaws.com/paropabaru/nobepiven.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451563/normal_6053b0f1e2a84.pdfIn PDF document text
    • http://teren.fun/rilujategopunikujugo1nzec.pdfIn PDF document text
    • http://pevilolejuwoju.iblogger.org/luwulewiku.pdfIn PDF document text
    • https://s3.amazonaws.com/gudukupir/43444094262.pdfIn PDF document text
    • https://s3.amazonaws.com/fekazudabo/84711815679.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482206/normal_5fff57b56e6b9.pdfIn PDF document text
    • https://s3.amazonaws.com/sowirutelevolur/60116924495.pdfIn PDF document text
    • https://s3.amazonaws.com/jixerubowi/kijebojoladubeb.pdfIn PDF document text
    • http://tesar-krd.ru/hyderabad_chatal_band_music_mp3_downloadp9pjg.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://tewapodu.rf.gd/35124948113.pdfIn PDF document text
    • http://volajigatume.epizy.com/47862763871.pdfIn PDF document text
    • http://bajivuselome.epizy.com/99663474489.pdfIn PDF document text
    • http://magixuzam.epizy.com/xixujurupumatujude.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fc80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC80 5264 bytes
SHA-256: 96f6640501d9159a26fd43e01ef0524da4e363f310a1e3971f2276d7c7d85d61
font_01_sfnt_off00010e6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E6E 11048 bytes
SHA-256: 3a9af3d2cfa9edf119c279727c06d837c4fb719628a238d088744245e21a9c29
font_02_sfnt_off00013439.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13439 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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