Malicious PDF — malware analysis report

Static analysis result for SHA-256 e675e65bbece977f…

MALICIOUS

PDF

39.3 KB Created: 2020-08-11 16:15:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 696be121cee45af5a1f79f4bc52de453 SHA-1: ac1f0e77401ace34540c2594c4dd5707e71c20c3 SHA-256: e675e65bbece977f1d939e63bc9475acd8ac67380435005b194b5c1d25f52bde
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a redirector link to 'https://ttraff.ru/pify?keyword=anthropometric+source+book+pdf'. This suggests a link farm or phishing attempt disguised as a document. The document body itself is heavily obfuscated but contains the same lure text and URLs. 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://ttraff.ru/pify?keyword=anthropometric+source+book+pdf
    • http://files.kwpoole.net/uploads/1/3/1/0/131070845/vovujukoge_lerokeloxeze.pdf
    • http://files.gncwomen.org/uploads/1/3/2/8/132814791/mubuwepoxifigubareke.pdf
    • http://files.jairobanuelos.com/uploads/1/3/0/9/130969755/8814480.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84302935330.pdf
    • https://cdn.shopify.com/s/files/1/0430/7815/6449/files/zumadosukaziwuwuge.pdf
    • https://cdn.shopify.com/s/files/1/0428/8013/9423/files/59793080091.pdf
    • https://cdn.shopify.com/s/files/1/0450/2405/1358/files/marketing_consultant_job_description.pdf
    • https://cdn.shopify.com/s/files/1/0434/6550/6966/files/18799456339.pdf
    • https://cdn.shopify.com/s/files/1/0436/8809/9993/files/ropupemu.pdf
    • https://cdn.shopify.com/s/files/1/0431/3248/5793/files/zimurabekevijenul.pdf
    • https://cdn.shopify.com/s/files/1/0433/7693/5068/files/lifenifotiwolelubeka.pdf
    • https://cdn.shopify.com/s/files/1/0429/6241/9863/files/tiwedanosabavuzu.pdf
    • https://cdn.shopify.com/s/files/1/0431/9641/6157/files/84734179853.pdf
    • https://cdn.shopify.com/s/files/1/0428/5969/2198/files/75568336062.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_off000059d3.bin
e64dcceb6dee2b5169cbba1321e28855a8534167584867deeb94be1594b308a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59D3 5348 bytes
font_01_sfnt_off00006bd0.bin
c07f60a0c80b4c6fc0896ede67d6cc728a49e6611721d9d57be760c7a6b8f583		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BD0 10716 bytes

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