Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7446c72f685f9db…

MALICIOUS

PDF

35.2 KB Created: 2020-08-31 01:48:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74d88f3b36c9ed2fd31fc76024f3c101 SHA-1: 065dacc3f3d422b735a0ac273bbafb4b631cd21f SHA-256: c7446c72f685f9dbb7858ccc01415e13d4d519502e1e2f6944bc02e1e7460b2b
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm designed to manipulate search engine results. One prominent link, disguised as a psychology textbook, redirects to a known malicious domain (ttraff.cc). This indicates a social engineering tactic to drive traffic to malicious infrastructure, likely for further exploitation or phishing.

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=psychology+concepts+and+applications+4th+edition
    • https://cdn.shopify.com/s/files/1/0434/4024/2840/files/pulilibekopujopelog.pdf
    • https://cdn.shopify.com/s/files/1/0428/9154/2681/files/pigore.pdf
    • https://cdn.shopify.com/s/files/1/0430/8716/7645/files/toxugakesodidatole.pdf
    • https://static.usrfiles.com/ugd/b8c837_9e41fb55a0eb43d0b76671f3faa189dc.pdf
    • https://static.usrfiles.com/ugd/b8c837_f1c3366a4d0b44228f80c18f67190123.pdf
    • https://static.usrfiles.com/ugd/b8c837_d81d96009fc34348a52a7f4357d28a81.pdf
    • https://static.usrfiles.com/ugd/2f8cea_8278012f9d5642579c3e5cd9bf7ae315.pdf
    • https://static.usrfiles.com/ugd/1c8c6c_a70c9c58a6e94f02ac2665b01bbd3d18.pdf
    • https://static.usrfiles.com/ugd/d01287_8313b3159e9348538faec28076d8f674.pdf
    • https://static.usrfiles.com/ugd/ee6770_e089744d889149e980ad81b0e61b5b01.pdf
    • https://static.usrfiles.com/ugd/e3ed1f_395d266ada4c4c609d060420b172926a.pdf
    • https://cdn.shopify.com/s/files/1/0429/8987/9445/files/31095787462.pdf
    • https://cdn.shopify.com/s/files/1/0431/5329/3469/files/bevesawozisonemabozetewik.pdf
    • https://cdn.shopify.com/s/files/1/0437/3495/8229/files/zefowiwiremavuseruga.pdf
    • https://cdn.shopify.com/s/files/1/0432/2269/6096/files/lufujawoxoligivifuma.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_off00004c42.bin
2f4727189544db660b1f86bebaf7c3bf5969c60a7501813364e3907beff68209		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C42 5432 bytes
font_01_sfnt_off00005eb8.bin
85037c6f01f07ad7df0f1d4a5ba8fb5b637317840b16d0ffe30dae586718183c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB8 9848 bytes

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