Malicious PDF — malware analysis report

Static analysis result for SHA-256 9eee913059819ee3…

MALICIOUS

PDF

43.6 KB Created: 2020-11-04 20:40:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 9ddb60b8667a5b0a32269b820efa843a SHA-1: 1ba2eca6bd756b772715cbcd2a741838c2f9c7a2 SHA-256: 9eee913059819ee3d8634f217efe27c2c667d1b948e41e23ad62991f60bb9584
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, identified as 'ttraff.me', which is likely used to funnel victims to malicious sites. The document body, though partially corrupted, contains keywords related to lucky numbers and includes the malicious URL, suggesting a lure for phishing or scamming. The presence of numerous external PDF links further indicates a link farm or redirection strategy.

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.
  • 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.
  • 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://ttraff.me/123?keyword=scorpio+lucky+numbers+today In PDF document text
    • https://cdn-cms.f-static.net/uploads/4375087/normal_5f9048a94fcd7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370286/normal_5f9c4fd1ed986.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376099/normal_5f92040a8fd29.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/40ddfa4d7f4e3e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380403/normal_5f8e2b2029a91.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369179/normal_5f8dd8e075e7a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455681/normal_5fa20cd2ed826.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416321/normal_5f9b9afc5d995.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407314/normal_5fa2577c60c0c.pdfIn PDF document text
    • https://vevinobe.weebly.com/uploads/1/3/4/4/134487659/7420387.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420939/normal_5fa09e3097886.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375351/normal_5f9ca7edbac37.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366028/normal_5f87120c3bdd8.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/mupuraregonu/verify_open_ports_server_2012.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_off00006c49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C49 5628 bytes
SHA-256: 651ae855a7d2cfbb341a8b7ee34d778e3499c78e6ad44abb0494e273004c7ac2
font_01_sfnt_off00007f56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F56 10112 bytes
SHA-256: e6129d796bc0afed1face05349b9359bdd5a7a0ce34e303fe4dd097dbdc90707

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