Malicious PDF — malware analysis report

Static analysis result for SHA-256 14559839821c6fe6…

MALICIOUS

PDF

58.4 KB Created: 2021-03-11 17:48:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: eb2e4ed771c4258545dfeb28fc670f4a SHA-1: a0615675ae83ba4e6db5aaf11fe69c9b0f1de474 SHA-256: 14559839821c6fe676151ebc5cb281ab6cc3bf6ee345cf6f013f9a22d6443a09
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external links, with several pointing to potentially disposable hosting, suggesting a link farm or phishing lure. The presence of embedded URLs and the PDF structure itself are indicative of an attempt to redirect users to malicious sites, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6608

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://baarspo.ru/award?keyword=libro+antibioticos+naturales+pdf PDF link annotation
    • http://bazis-rostov.com/70944894577gi73r.pdfIn PDF document text
    • http://zogometemo.sportsontheweb.net/34296302374.pdfIn PDF document text
    • http://fanisore.sportsontheweb.net/coleman_presidential_electric_furnace_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/zofizitene/hizeheN/46589071385.pdfIn PDF document text
    • http://kersita.space/67652546955s0j0.pdfIn PDF document text
    • http://tublitalia.space/12789696780soe70.pdfIn PDF document text
    • http://zimezobot.getenjoyment.net/53898172451.pdfIn PDF document text
    • http://moxipafuxoxo.mygamesonline.org/bharathiyar_padalgal_tamil.pdfIn PDF document text
    • https://cdn.sqhk.co/remonupode/cijzuhg/cubes_math_strategy_free_printable.pdfIn PDF document text
    • http://najetaxu.mygamesonline.org/60027954333.pdfIn PDF document text
    • https://cdn.sqhk.co/wawabosamugo/jcQjhjf/jerixekafupadowalananogi.pdfIn PDF document text
    • http://bumawusuka.mypressonline.com/how_to_hand_score_the_basc-2.pdfIn PDF document text
    • https://cdn.sqhk.co/kelopifagisu/ndgiuhd/64156348589.pdfIn PDF document text
    • http://beremoter.online/84639516441i2697.pdfIn PDF document text
    • http://bitines.myartsonline.com/bodmas_questions_for_class_7.pdfIn PDF document text
    • http://rukosivujuxu.atwebpages.com/31847262009.pdfIn PDF document text
    • http://jifobobaganut.epizy.com/gekerigatiluj.pdfIn PDF document text
    • http://vamavaremimot.atwebpages.com/plan_de_negocio_para_abrir_una_cafeteria.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9bf578c1-e7b2-4208-bf89-fdd3b0eb03b3/1582970657.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1d37a87-473c-412d-a3b9-3841803d5752/survival_movies_netflix_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba21b7e9-2929-434c-8581-70c15aad805b/kuwaxezupasepiridepefoka.pdfIn PDF document text
    • http://xotopunutogor.rf.gd/wamulolipuzuzanediweki.pdfIn PDF document text