Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3292f826069f346…

MALICIOUS

PDF

44.9 KB Created: 2020-09-28 20:58:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c864ad7153b2185accc6464cefa37e2 SHA-1: ca2f865b76c85dc0211f06a88fb04f51b9dd62ec SHA-256: a3292f826069f34639dfa4563179023d8d06c051eb43af72870e629d65a2e528
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains numerous embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though partially corrupted, suggests a lure related to an 'Osaka sightseeing map pdf'. The primary malicious activity observed is the redirection to external URLs, likely for phishing or malware delivery. No scripts were extracted from this sample.

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://gettraff.ru/mozel?keyword=osaka+sightseeing+map+pdf
    • http://files.refinishing.org/uploads/1/3/2/6/132695516/0410a7.pdf
    • http://jafiwuwo.pamperandpreen.co.uk/uploads/1/3/1/6/131607029/477cad2.pdf
    • http://files.sunzsafe.com/uploads/1/3/1/3/131398164/woxugukigadagibeteb.pdf
    • http://gixeripim.container-conversions-scotland.com/uploads/1/3/1/4/131437930/3766624.pdf
    • http://teruz.musiclink808.com/uploads/1/3/1/4/131408738/2aade8f675c.pdf
    • https://site-1036785.mozfiles.com/files/1036785/goxuxifebi.pdf
    • https://site-1036991.mozfiles.com/files/1036991/maluzasososir.pdf
    • https://site-1036764.mozfiles.com/files/1036764/65224103290.pdf
    • https://site-1036935.mozfiles.com/files/1036935/86602935572.pdf
    • https://4082e34d-e3f8-4b89-8fea-d606e2287323.filesusr.com/ugd/48f461_da8dc813400b495aabd9b5a737df7730.pdf?index=true
    • https://3217688f-76db-49cb-ad37-c931dc15bb1d.filesusr.com/ugd/787b0a_71601481b9d84c1bbf69ae96485ac089.pdf?index=true
    • https://36e780b3-9fe6-4e59-bfd5-0d2553f47715.filesusr.com/ugd/15cd4d_4ea0641a0d834a6fae9b735591e1f1b9.pdf?index=true
    • https://077651fd-f2d6-4213-8b08-960f7e1d87d0.filesusr.com/ugd/067ecb_1887f718573748cc84013b56c856bfdc.pdf?index=true
    • 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_off00007103.bin
a7701784de1e976482f3be747d103146e43405bb516171e25730ba92c4ce26a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7103 5416 bytes
font_01_sfnt_off00008354.bin
1203a224974434d66c792c5c57018b083e8e4cb76c16f60e0334349d32844e25		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8354 10356 bytes

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