Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dd95081108e0cf4…

MALICIOUS

PDF

40.8 KB Created: 2020-08-29 06:54:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 91be0dfefc7dc0bbd2e8879157f2b372 SHA-1: 37ce94775c51c3727441728a84985b76d9896ff6 SHA-256: 1dd95081108e0cf409a4ac8364217499cb8c5d22e5508acc3263a2365c3771b0
120 Risk Score

Malware Insights

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

The PDF file contains a link to a redirector URL that is associated with malicious activity. The document body, though heavily obfuscated, contains text related to 'Naruto shippuden ultimate ninja heroes 3 cso highly compressed' and the redirector URL itself, suggesting a lure for pirated content. The PDF also contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of SEO link farm techniques used to improve search engine ranking for malicious sites.

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=naruto+shippuden+ultimate+ninja+heroes+3+cso+highly+compressed
    • https://cdn.shopify.com/s/files/1/0452/5680/2461/files/50219663489.pdf
    • https://cdn.shopify.com/s/files/1/0429/9217/3217/files/57468771284.pdf
    • https://cdn.shopify.com/s/files/1/0456/4477/5591/files/bts_v_singularity_song.pdf
    • https://cdn.shopify.com/s/files/1/0434/7956/4448/files/nakogasofazuvujot.pdf
    • https://cdn.shopify.com/s/files/1/0429/6795/7660/files/10617785528.pdf
    • https://cdn.shopify.com/s/files/1/0429/2670/2755/files/99124704669.pdf
    • https://cdn.shopify.com/s/files/1/0430/6888/3106/files/fetuwofedogojolus.pdf
    • https://cdn.shopify.com/s/files/1/0431/0056/9751/files/74658019905.pdf
    • https://cdn.shopify.com/s/files/1/0451/0878/9413/files/pcr_amplification_protocol.pdf
    • https://cdn.shopify.com/s/files/1/0437/5147/3313/files/statistical_data_analytics.pdf
    • https://cdn.shopify.com/s/files/1/0429/9263/1962/files/basic_java_programming_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0431/6980/8550/files/bl2_effervescent_guide.pdf
    • https://cdn.shopify.com/s/files/1/0438/7949/7896/files/40738483749.pdf
    • https://static.usrfiles.com/ugd/b8c837_5c0101b12be4433f90a782b02d807459.pdf
    • https://static.usrfiles.com/ugd/b8c837_62d87b6eb466438caac444bc28ca111d.pdf
    • https://static.usrfiles.com/ugd/b8c837_d34207c01fbf4fe7bd429f977bf8b467.pdf
    • https://static.usrfiles.com/ugd/b8c837_260a36ff4bd146d7914a3785e69143f1.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_off00005f18.bin
a80f483c06b5e37ce76a75e53c146b944ec9166a69142917fafd22a49b92ef86
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F18 5796 bytes
font_01_sfnt_off000072b0.bin
05d6a4e12a905e33d1221880c5f10ae5ab648e196f823de8356437986b490993
pdf-font-stream PDF embedded font (sfnt) at offset 0x72B0 10308 bytes