Malicious PDF — malware analysis report

Static analysis result for SHA-256 0760e60418f6430f…

MALICIOUS

PDF

118.0 KB Created: 2020-11-18 08:02:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 3e455e96636e01bc24ce09f285a03cca SHA-1: 7727cb0360e19b70ec56c35c0e7745e1f9d2b0b8 SHA-256: 0760e60418f6430f966ec52dc70e7b3135a1fce15323fd1668368c9eda6e255b
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'traffmen.ru'. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the presence of a malicious URL indicates an attempt to lure the user to a harmful site, likely for phishing or to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • 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://traffmen.ru/aws?utm_term=entrepreneurship+ideas+in+india+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4373259/normal_5f88b7a22c25a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474997/normal_5fb4b1353eb27.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452845/normal_5fa1a695912ae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368471/normal_5f91082337be1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371505/normal_5f9473e0c33cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389599/normal_5f91e014c01f5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/86e57ced-40bc-43d2-ae77-b02b3f62a777/ferijufeputetimuwed.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6996ecd3-7103-48ab-9350-805fd2e9742e/1575393741.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f5dd1a6-c9fb-43a0-96fb-56af4511327b/xemusuxowadi.pdfIn PDF document text
    • https://s3.amazonaws.com/vonuxagupeduze/zolupep.pdfIn PDF document text
    • https://s3.amazonaws.com/tenunud/sawuwas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75117fbb-117f-41a9-a01b-d2a88727e235/menasimezuromekuwaluzigu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32958b07-5f43-4949-9090-cc1452e817ce/93932177418.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/782b2db9-a8ec-4255-b891-4e75e3d7d605/guajira_flamenco.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_off000194b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x194B5 5052 bytes
SHA-256: 88c2ccefea33a42f730cf72f6701d8ecfa0212f397ac9acb95917d63d8721ca8
font_01_sfnt_off0001a5df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A5DF 10980 bytes
SHA-256: d3da0912d7c9b3e7da605c3877ebe2b875d1cb99680b3ed9386cd5b93626f75a

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