Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6d5bb4c793384eb…

MALICIOUS

PDF

70.9 KB Created: 2021-02-28 15:18:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: a2e3b7339370417ba420070fbc0ce253 SHA-1: 8256665b937707c771dfc92262bca89abd95dd28 SHA-256: c6d5bb4c793384eb2482d1565ac895f14ed07a6958d677d01acf21dc3b383249
124 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with one specifically pointing to a domain that appears to be a link farm designed to host malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, contains keywords related to troubleshooting, suggesting a lure to trick users into visiting the malicious URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9596

Heuristics 4

  • 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
  • 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://jacksth.ru/award?keyword=keurig+2.0+troubleshooting+slow+drip PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4407989/normal_600a4107c1654.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490720/normal_6015e7d0bbc83.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417528/normal_600355fd970c2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403960/normal_602ec6934f197.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474471/normal_600c72e8274d2.pdfIn PDF document text
    • http://hotita.fun/sfv_patch_noteswnzvx.pdfIn PDF document text
    • http://m-ryanaf.site/45049763713v3540.pdfIn PDF document text
    • http://findonelove.online/apa_footnotes_guidetaujh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375894/normal_6031c7e3a23e1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408336/normal_601b07ce8daf9.pdfIn PDF document text
    • http://znohist.site/90466706841h28k.pdfIn PDF document text
    • http://whalesqpa.fun/rooks_dermatology_downloadav4ac.pdfIn PDF document text
    • http://lujuvudav.22web.org/chakram_movie_songs_please.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501380/normal_5fe5535dea04a.pdfIn PDF document text
    • http://znohist.site/ashrae_62._2_freelndr4.pdfIn PDF document text
    • http://azakalaza3.xyz/prema_tora_badmas_full_video_songgzve5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dazusiv.epizy.com/best_rig_for_pier_fishing_in_florida.pdfIn PDF document text
    • http://gevorewububew.epizy.com/cervical_pain_exercise.pdfIn PDF document text
    • http://zemipajobo.rf.gd/messenger_apk_old_version_2015.pdfIn PDF document text
    • http://girifatu.rf.gd/61590262762.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fccc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCCC 5520 bytes
SHA-256: 0f5f4e1eda44760403696c530437a83544ae57c5623a75047cd0c82526bebf68