Malicious PDF — malware analysis report

Static analysis result for SHA-256 00e3b3097eac492f…

MALICIOUS

PDF

26.0 KB Created: 2020-11-05 17:15:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 91f0c7c2ca20edf5ee60d8f051a613a7 SHA-1: 19e8c37fcff8fa95f0b689307ae1162bc20e9234 SHA-256: 00e3b3097eac492fe17e94a4c596f13628a0339c0aa77745bf2b676dec6c8941
64 Risk Score

Malware Insights

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

The PDF file contains embedded URLs, one of which, 'https://traffset.ru/aws?keyword=purple+texture+pack+mcpe', is flagged as malicious and is presented in a way that suggests a lure. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the PDF is part of a link farm on disposable hosting, further supporting a malicious intent. Although no scripts were explicitly extracted, the presence of embedded URLs and the ML classifier's high confidence score suggest this PDF is designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 3

  • 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://traffset.ru/aws?keyword=purple+texture+pack+mcpe PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4405206/normal_5f9238071cb33.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421215/normal_5fa21c0f19f4e.pdfIn PDF document text
    • https://lakupemeza.weebly.com/uploads/1/3/4/2/134235705/2272228.pdfIn PDF document text
    • https://vudiwajexisipu.weebly.com/uploads/1/3/4/0/134096418/5e61ccdc387d8ea.pdfIn PDF document text
    • https://valetakomo.weebly.com/uploads/1/3/4/0/134012509/930486.pdfIn PDF document text
    • https://nabofirolem.weebly.com/uploads/1/3/4/6/134632364/5733112.pdfIn PDF document text
    • https://punotajevi.weebly.com/uploads/1/3/4/2/134266109/sixajufowufeb_rusufosegikafa_zariwasuwelaz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/numegubowalonan/kondisi_ekonomi_indonesia_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/fumiposamisur/6994379499.pdfIn PDF document text
    • https://s3.amazonaws.com/fodose/caracteres_chinos_y_su_significado.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/574a6cb2-3777-4b4f-9b13-3f3a776e0ec4/99392004933.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5b146ed-8efd-4fa3-a9ec-e01b97e70f9b/69847438246.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7eb852b3-7cfe-40de-b28c-474a723a47ca/fadagagararovofew.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a6ed5c0-9f7c-4525-a621-1e4f5ae94662/thieves_guild_divinity_2.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_off00004c59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C59 5036 bytes
SHA-256: 90a45a8a1db051673025433e2c2a422d4545db97be1ce722ae7023c8272758ff