Malicious PDF — malware analysis report

Static analysis result for SHA-256 b32ca5db8acbbc30…

MALICIOUS

PDF

42.8 KB Created: 2020-08-22 15:13:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c3d2c9d6bd0576e4e827d94172a2a04 SHA-1: c1b081dd2a90c4e23f12663947a3c5d5c66ce9a3 SHA-256: b32ca5db8acbbc30845ee51d64842252c2a4e2d7e5b2d491fec89362b2df0100
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body contains text related to 'Bsplayer mac os x free' and includes the malicious URL, suggesting a lure for downloading potentially unwanted or malicious software. The PDF_SEO_LINK_FARM heuristic further indicates the presence of numerous external links, likely for SEO manipulation or to distribute payloads.

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/pify?keyword=bsplayer+mac+os+x+free
    • http://files.bhurbanhillapartments.com/uploads/1/3/2/7/132740978/2785935.pdf
    • https://cdn.shopify.com/s/files/1/0434/0292/0086/files/18714651835.pdf
    • https://cdn.shopify.com/s/files/1/0433/4590/3774/files/javascript_concatenate_arrays.pdf
    • https://cdn.shopify.com/s/files/1/0452/2527/9648/files/tcs_aptitude_test_question_paper.pdf
    • https://cdn.shopify.com/s/files/1/0437/3282/8314/files/77132101149.pdf
    • https://cdn.shopify.com/s/files/1/0430/4227/5485/files/60807374902.pdf
    • https://cdn.shopify.com/s/files/1/0434/0409/9740/files/one_fish_two_fish_red_fish_blue_fish_read.pdf
    • https://cdn.shopify.com/s/files/1/0431/0004/5465/files/panasonic_tv_catalog_2020.pdf
    • https://cdn.shopify.com/s/files/1/0434/2539/8945/files/allegro_5_manual.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_off000069cf.bin
a7e5239d7ca26b5163b91544f072597b57c281e553ba87a4194d78d13faf3d0e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69CF 5380 bytes
font_01_sfnt_off00007c12.bin
bf5830102ceca8db7cab60617ae15cdbffa7ec1702b9ae28436f7114706d67d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C12 10296 bytes

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