Malicious PDF — malware analysis report

Static analysis result for SHA-256 02288f795dd58253…

MALICIOUS

PDF

67.6 KB Created: 2021-02-14 15:22:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 7ee63d990a2ddb20375ac45fb5c7cc4a SHA-1: 65343264c74b035f3ba45a79eaf75b600e725a52 SHA-256: 02288f795dd5825320d4f54fed163df91a1ae61130721310757b5895096d9dcc
182 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, many pointing to disposable hosting and potentially malicious redirectors, suggesting a phishing or scam campaign. The presence of a ClamAV detection for 'Pdf.Phishing.Trojan' and ML classification further supports its malicious nature. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8239

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
  • 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 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://crophysi.ru/aws?utm_term=beetv+apk+free++for+android In PDF document text
    • http://gimakelodikovij.iblogger.org/tebidojelimirexidi.pdfIn PDF document text
    • https://jetovalanowu.weebly.com/uploads/1/3/0/7/130739462/tosotigup.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503533/normal_5fd99d87ce943.pdfIn PDF document text
    • https://tujozidu.weebly.com/uploads/1/3/4/6/134694944/bubipuji_jiribonamupa_xuvizopefi_zalixamumojos.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471096/normal_5ff4c77061088.pdfIn PDF document text
    • https://deremorukoj.weebly.com/uploads/1/3/4/4/134490203/5761010.pdfIn PDF document text
    • https://gosasolana.weebly.com/uploads/1/3/4/5/134523876/gudolofosikoxa.pdfIn PDF document text
    • http://xaduwojitodefo.66ghz.com/jeans_waist_size_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/govizanorev/thiigid/green_pepper_soup_instant_pot.pdfIn PDF document text
    • http://xixubitawub.iblogger.org/bible_free_new_king_james_version.pdfIn PDF document text
    • https://vipomumukewa.weebly.com/uploads/1/3/0/8/130813786/383afc7675.pdfIn PDF document text
    • https://kutufesivom.weebly.com/uploads/1/3/4/6/134632784/56d248e.pdfIn PDF document text
    • https://cdn.sqhk.co/wadupaxi/eGjFogc/al_kahraba_se_com_sa.pdfIn PDF document text
    • https://nimivisedasefu.weebly.com/uploads/1/3/1/0/131070972/0ce0a47e0fa3.pdfIn PDF document text
    • https://vevilatibivu.weebly.com/uploads/1/3/6/0/136082609/4d947b3a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rajokawaxes.rf.gd/invoice_template_with_vat_number.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_off0000e609.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE609 4996 bytes
SHA-256: f10dcc91bfba3494d9b25ad17759e66f0e66bfa50cc6dae0a1679704565053ad