Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ec133df0f0cc63b…

MALICIOUS

PDF

71.5 KB Created: 2021-02-07 14:04:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 80edfc9055a5d775e99225589d140afa SHA-1: a9a24bdcb8c38fe054a027804b5fd0b6a512e8f9 SHA-256: 9ec133df0f0cc63b41d28ae669a15afc2f8dfda3a02cd60ea2895de7cf9b4086
186 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The document body, though heavily obfuscated, appears to contain metadata related to its creation, possibly as a lure.

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.
  • 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/123?utm_term=gregg+middle+school+calendar PDF link annotation
    • http://gonugotez.22web.org/jasper_report_for_java_developer.pdfIn PDF document text
    • https://mafadojidakiwo.weebly.com/uploads/1/3/1/8/131871721/dunovadevuvufu-tobewurotekiw-jopos-lavore.pdfIn PDF document text
    • https://nofabirudop.weebly.com/uploads/1/3/4/4/134455392/lokabutixena.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366642/normal_601108bd52205.pdfIn PDF document text
    • https://bowemubunewoseg.weebly.com/uploads/1/3/0/7/130739536/tilawelakewovurel.pdfIn PDF document text
    • https://fowezojufogomod.weebly.com/uploads/1/3/5/3/135307270/1382329.pdfIn PDF document text
    • https://vanunogagasibe.weebly.com/uploads/1/3/5/9/135964710/e10386315108.pdfIn PDF document text
    • https://ruvawuwejijexut.weebly.com/uploads/1/3/0/8/130814193/6492530.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475406/normal_5feef8b8769c9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462345/normal_601bf12d57223.pdfIn PDF document text
    • https://xopozutafedas.weebly.com/uploads/1/3/1/4/131453480/xiwow.pdfIn PDF document text
    • https://rifojiditesi.weebly.com/uploads/1/3/1/3/131379396/xelabuxuzoxurej.pdfIn PDF document text
    • http://kopolade.22web.org/fedex_domestic_air_waybill.pdfIn PDF document text
    • https://lawuzifelive.weebly.com/uploads/1/3/4/0/134041442/81da12820c4c2d8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422378/normal_5ffeaf698ac35.pdfIn PDF document text
    • http://jeruxawi.iblogger.org/70718890466.pdfIn PDF document text
    • https://didunomupipopad.weebly.com/uploads/1/3/1/4/131438203/dotud.pdfIn PDF document text
    • https://jizidetaji.weebly.com/uploads/1/3/4/6/134626841/673dae931556.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367632/normal_5fe39eb99e89d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403119/normal_5fdd3914ae708.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465543/normal_5ff71441f3e29.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000daf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAF0 5384 bytes
SHA-256: 443f8daf32b55ead0b1d612d3e1656c2d4f675a3d63b175dbd4f7400b9d25cab
font_01_sfnt_off0000ed12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED12 10424 bytes
SHA-256: c82024d154de0a9ad185d81179b48952975021eb2da40379b33c080ead8db706