Malicious PDF — malware analysis report

Static analysis result for SHA-256 333be1ce034bf285…

MALICIOUS

PDF

42.9 KB Created: 2020-11-03 12:21:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: f0735465082c6ff4d662385724445831 SHA-1: 1f55ba686e16927577820f9919e7c977be665002 SHA-256: 333be1ce034bf285eaaca97abbd0353d8981cdf561cf1da6706bdfafdf7a85a3
114 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, disguised with text related to municipal court warrants, indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://gettraff.ru/aws?keyword=arlington+tx+municipal+court+warrants In PDF document text
    • https://vovinusowoxojik.weebly.com/uploads/1/3/4/3/134349833/fanovax.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375704/normal_5f99232817a2b.pdfIn PDF document text
    • https://lozatovetifeg.weebly.com/uploads/1/3/3/9/133999134/fuwipifezekor.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368752/normal_5f881b08936cb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385217/normal_5f9c971c5baa1.pdfIn PDF document text
    • https://vodipewelo.weebly.com/uploads/1/3/1/6/131637384/podivexozaxefopu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386842/normal_5f8ce280df249.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/bejenosugede/welsh_stick_chair_plans.pdfIn PDF document text
    • https://s3.amazonaws.com/guxosa/paula_deen_cornbread_dressing.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/22370814015.pdfIn PDF document text
    • https://s3.amazonaws.com/banula/wapibimepizuna.pdfIn PDF document text
    • https://s3.amazonaws.com/sowewazulejewi/netugabadegerogudar.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/tratamiento_antienvejecimiento.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006471.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6471 5404 bytes
SHA-256: 6af24de41f96c31046aebc819f8d6d5e4550110a29418a4c86bad839b9147c77
font_01_sfnt_off000076d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76D6 12728 bytes
SHA-256: f9a36b0d92f7d2ca0c943acb180a8c53e552fc8684bcfa69610100fe5e1b1990