Malicious PDF — malware analysis report

Static analysis result for SHA-256 48848d476d8f6efa…

MALICIOUS

PDF

29.9 KB Created: 2020-07-08 11:49:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 01069b094754c3a07228e80822f63546 SHA-1: 90126fd001319b505fe90f6d0815a35520e375f0 SHA-256: 48848d476d8f6efacf92010065dee054e2ae8398bd6d24afbaa66d99a034a09f
182 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to domains hosting further PDF files. One prominent link redirects to a malicious infrastructure, likely to facilitate further malicious downloads. The document body itself is minimal, containing only a lure for a 'free download' of educational material, which is a common social engineering tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.ru/wb?keyword=cambridge%20igcse%20ict%20second%20edition%20pdf%20free%20download In PDF document text
    • http://files.jeelsphoto.com/uploads/1/3/2/7/132740398/figilerovifojipovo.pdfIn PDF document text
    • http://files.gatetocommunicate.com/uploads/1/3/1/4/131409508/8276851.pdfIn PDF document text
    • http://files.kitalerafiki.com/uploads/1/3/0/8/130873830/kovov_tefusegojiwenav.pdfIn PDF document text
    • http://files.kimberleyashleecatering.com/uploads/1/3/0/7/130739690/wiwaxupoxadawex_bawulixi_jajisar_lerazim.pdfIn PDF document text
    • http://files.rushizle.com/uploads/1/3/0/7/130776338/3326136.pdfIn PDF document text
    • http://files.samtoth.com/uploads/1/3/1/6/131606550/dazigasaguzo.pdfIn PDF document text
    • http://files.kmphotographyma.com/uploads/1/3/1/4/131407165/1126974.pdfIn PDF document text
    • http://files.orangevalleycreations.com/uploads/1/3/1/3/131383510/bujofaketuwomidabej.pdfIn PDF document text
    • https://tijiwozaros.files.wordpress.com/2020/06/sexelemexizus.pdfIn PDF document text
    • https://wifuvabasit.files.wordpress.com/2020/07/jewubikabovo.pdfIn PDF document text
    • https://tifivoperib.files.wordpress.com/2020/07/femavataz.pdfIn PDF document text
    • https://rodawewek.files.wordpress.com/2020/06/fobugimesalufedi.pdfIn PDF document text
    • https://julapuja.files.wordpress.com/2020/07/lezagazoderodu.pdfIn PDF document text