Malicious PDF — malware analysis report

Static analysis result for SHA-256 c27cb18e542e6896…

MALICIOUS

PDF

46.5 KB Created: 2020-07-10 13:11:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 40a8ce0c462e79c6a62200bdef0e943a SHA-1: 33068f0b87003f3a361e18f76616412422750c5a SHA-256: c27cb18e542e689606061ba2f1b148b1170c1c413d267ed646021f9d32001b3e
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic. One of these links, https://ttraff.com/wb?keyword=destierro%20de%20sombras%20o'gorman%20pdf, is flagged as a malicious redirector. This suggests the document is designed to lure users into clicking these links, which likely lead to malicious sites for phishing or malware delivery.

Heuristics 3

  • 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.
  • 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.com/wb?keyword=destierro%20de%20sombras%20o
    • http://files.beautrix.ca/uploads/1/3/1/4/131453021/8285402.pdf
    • http://files.dart-bayernliga.com/uploads/1/3/0/9/130969597/mozidi_fisokiniz.pdf
    • http://files.hubcaphobbies.com/uploads/1/3/1/1/131164418/68c74213.pdf
    • http://files.ullrichsstore.com/uploads/1/3/1/0/131071308/vuludimiweg-fusezomoriwubuw-tijoxufepo.pdf
    • http://files.lavenderlanemi.com/uploads/1/3/2/6/132696263/302973682aa.pdf
    • http://files.faithgoenner.com/uploads/1/3/1/6/131606295/3665533.pdf
    • http://files.happybuddha-aruba.com/uploads/1/3/1/4/131483778/fff5685192143.pdf
    • https://zugomesemuz.files.wordpress.com/2020/06/23802196528.pdf
    • https://guvadade.files.wordpress.com/2020/06/18859286761.pdf
    • https://niwifavazu.files.wordpress.com/2020/07/marofepigas.pdf
    • https://miteduxom.files.wordpress.com/2020/07/59891236270.pdf
    • https://lirajobavan.files.wordpress.com/2020/06/70548593761.pdf
    • https://vakowozobo.files.wordpress.com/2020/07/sujonegi.pdf
    • https://cdn.shopify.com/s/files/1/0432/0185/5646/files/lobuzegegamojum.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wajumibuxup.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/volobufepafolosovi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kesazemoluvumexon.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000075cc.bin
36fd2dbe9c309a6fabd15616a3cc2dadcb8f4683d8e021266799b6992bcba0d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75CC 5292 bytes
font_01_sfnt_off000087b1.bin
e582715d0d8a7b28ad1eac1aa56135cc6b91f955e53bef0ab4e79866ce702fed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87B1 10776 bytes

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