Malicious PDF — malware analysis report

Static analysis result for SHA-256 cee3fe91350b802a…

MALICIOUS

PDF

72.2 KB Created: 2021-02-26 15:10:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 3ad0b56e75a90dbb60e53054a5c61828 SHA-1: 5ddb296fee983862e75b2b2a38b2fa8135699edf SHA-256: cee3fe91350b802ae4555ffa90108136030132d776258fcf41754ac233d51491
186 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains numerous links to external websites, many of which appear to be part of a link farm hosted on disposable domains. The document body, though partially obfuscated, contains a query related to sugar conversion, likely a lure to disguise the malicious intent. The presence of multiple external links and the ML classifier's high confidence score indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9615

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
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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://midufefew.ru/award?keyword=cuanto+es+150+gramos+de+azucar+en+tazas PDF link annotation
    • http://sportita.fun/comcast_cable_box_says_boot_then_shuts_offfnzz1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418365/normal_603436fdcfffe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370076/normal_5ff81f8638b2f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385412/normal_5feb7453d1b55.pdfIn PDF document text
    • http://idealica-ordina.site/79038388663l0f97.pdfIn PDF document text
    • http://giocodigital.fun/head_soccer_hack_ios_13kacof.pdfIn PDF document text
    • http://usacreditmonitoring.info/giweluredepuxakokowakef9d5w.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452852/normal_601039b325d34.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448535/normal_602baf00dccca.pdfIn PDF document text
    • https://kilewesiviteki.weebly.com/uploads/1/3/1/1/131163613/8885029.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495843/normal_6018a1738f815.pdfIn PDF document text
    • https://dolilugufup.weebly.com/uploads/1/3/0/7/130776220/4773511.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415527/normal_5ff680e1be8fa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454054/normal_5fd99180cd4f5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000ddd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDD4 5500 bytes
SHA-256: 17b04d91d07df8972afa20ede95516d5c388aae02d946bf9a1a36003d9b74ef1
font_01_sfnt_off0000f07b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF07B 14700 bytes
SHA-256: b52f3ed8712f8332d6971e60ae36a68e5dbbd4cec1086ad9516588c2f0de20c3

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