Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0d79a09c2a92808…

MALICIOUS

PDF

44.3 KB Created: 2020-08-30 07:17:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bd788b0d36bfe63587d673e0d256c58b SHA-1: 95751f05db7672386a9eaac3250ed3c31a6d6d99 SHA-256: c0d79a09c2a92808ce747a85241f6925fd6ff2f7397b77cae86818b23654f672
150 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, a technique often used to create link farms. One of these links, https://ttraff.cc/wix?keyword=playerunknown%2527s+battlegrounds+sli, points to known malicious redirector infrastructure. This suggests the document's primary purpose is to lure users to malicious sites, likely for phishing or to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.cc/wix?keyword=playerunknown%2527s+battlegrounds+sli
    • https://cdn.shopify.com/s/files/1/0432/0677/0849/files/fibowerefi.pdf
    • https://cdn.shopify.com/s/files/1/0438/0668/7394/files/5285153467.pdf
    • https://cdn.shopify.com/s/files/1/0427/8052/4710/files/dafomamapokaxamixoni.pdf
    • https://static.usrfiles.com/ugd/5de1df_3fe32134da1c40ba900b245566be4107.pdf
    • https://static.usrfiles.com/ugd/9b7d8a_f28b6a6981c54bfc94502d1f84a6335a.pdf
    • https://static.usrfiles.com/ugd/96768c_618cf5530bbe4594a3bfd0940ac524f8.pdf
    • https://static.usrfiles.com/ugd/15cd4d_3c584eb0f9214b40b152662b50d706ee.pdf
    • https://static.usrfiles.com/ugd/eaf48f_180ee269847b4502bce99597a7a6d746.pdf
    • https://static.usrfiles.com/ugd/b8c837_4e7b5ca34de4477683cca469eae79e17.pdf
    • https://static.usrfiles.com/ugd/5ed537_9d65a68090bf4341897da79fae25eb15.pdf
    • https://static.usrfiles.com/ugd/38bf1f_e3429421c5724618a577ea5ef70fcafb.pdf
    • https://static.usrfiles.com/ugd/b8c837_3287f6c608f146e5b9d64f30e8c8d0a0.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000061c2.bin
fa79ce57311d07a7ae9675adc077befecff308d26a44d9d2dbb2e7bc8a4c9d80		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61C2 5308 bytes
font_01_sfnt_off000073f6.bin
1fc9d4a89ab96442c04da1b1aff3b25bfc09613e94277477dfaa3270cac6e6d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73F6 10004 bytes
font_02_sfnt_off0000962a.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x962A 4324 bytes

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